WO2014000173A1 - 小区驻留方法、终端和基站 - Google Patents

小区驻留方法、终端和基站 Download PDF

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Publication number
WO2014000173A1
WO2014000173A1 PCT/CN2012/077603 CN2012077603W WO2014000173A1 WO 2014000173 A1 WO2014000173 A1 WO 2014000173A1 CN 2012077603 W CN2012077603 W CN 2012077603W WO 2014000173 A1 WO2014000173 A1 WO 2014000173A1
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WO
WIPO (PCT)
Prior art keywords
cell
list
frequency band
terminal
base station
Prior art date
Application number
PCT/CN2012/077603
Other languages
English (en)
French (fr)
Inventor
张宏平
曾清海
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN201280000957.5A priority Critical patent/CN103650587A/zh
Priority to PCT/CN2012/077603 priority patent/WO2014000173A1/zh
Publication of WO2014000173A1 publication Critical patent/WO2014000173A1/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
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/16Discovering, processing access restriction or access information

Definitions

  • the present invention relates to the field of mobile communications, and in particular, to a cell camping method, a terminal, and a base station. Background technique
  • CA Carrier Aggregation
  • LTE-A Long Term Evolution-Advanced
  • CCs Component Carriers
  • PCell Primary Cell
  • SCell Secondary Cell
  • the concept of NCT (new carrier type) carrier is introduced.
  • the NCT carrier is mainly used for CA enhancement technology.
  • the enhancement effect is as follows: Enhance spectrum efficiency and improve Three aspects of network support and energy conservation.
  • the NCT cell (the cell using the N CT carrier) cannot be configured independently to the UE, and can only be configured as a secondary cell to the UE, that is, the UE cannot camp in the NCT cell.
  • the UE After the UE is powered on, the UE generally performs cell selection first, so as to camp on a certain cell, and then initiates a service, and must initiate a service in the camped cell. In addition, as the UE moves, the UE performs cell reselection to replace the camped cell. In addition, when the radio link fails between the UE and the cell, the UE performs a connection re-establishment operation. The connection re-establishment process first performs cell selection and re-establishes the connection on the selected cell.
  • the process of cell selection or cell reselection is as follows:
  • the UE selects a certain frequency band to search for a cell, and when searching for a cell, according to the PSS (Primary Synchronization Signal) or SSS (Secondary Synchronization Signal) sent by the cell. Performing synchronization and identification of the cell.
  • PSS Primary Synchronization Signal
  • SSS Secondary Synchronization Signal
  • Performing synchronization and identification of the cell When the UE searches for the PCI (Physical Cell Identity) of the cell, the system information of the cell is read, and the signal strength of the cell is measured, and then, according to the measurement result, whether to perform in the cell is performed. Resident.
  • PCI Physical Cell Identity
  • the UE may try to camp in the NCT cell, but because the Release-11 version specifies that the UE cannot camp in the NCT cell. Leaving, therefore, the UE's attempt to camp in the NCT cell will inevitably fail, which will increase the time it takes the UE to perform cell selection or cell reselection or connection re-establishment. Summary of the invention
  • the technical problem to be solved by the embodiments of the present invention is to provide a cell camping method, a terminal, and a base station, which can enable the terminal to perform cell selection, cell reselection, or when performing cell selection, cell reselection, or connection reestablishment. The time it takes for the connection to be re-established.
  • the embodiment of the present invention provides a cell camping method, including: receiving a frequency band list or a cell list from a base station, where the small cell in the frequency band list or the cell list is a forbidden camping cell;
  • the search cell When performing cell selection, cell reselection, or connection re-establishment, the search cell camps, but when searching for a cell, it is prohibited to search for cells in the band list or in the cell list.
  • an embodiment of the present invention further provides a cell resident method, including:
  • an embodiment of the present invention further discloses a terminal, including:
  • a receiving unit configured to receive a frequency band list or a cell list from the base station, where the cell in the frequency band list or the cell list is a forbidden camping cell;
  • the search unit is configured to: when performing cell selection, cell reselection, or connection re-establishment, the search cell camps, but when searching for a cell, prohibiting searching for cells in the frequency band list or in the cell list.
  • an embodiment of the present invention further discloses a base station, including:
  • a sending unit configured to send a frequency band list or a cell list to the terminal, where the cell in the frequency band list or the cell list is a forbidden camping cell, to indicate that the terminal performs cell selection, cell reselection, or connection re-establishment, It is forbidden to search for cells in the frequency band list or in the cell list.
  • the base station sends the information of the forbidden camping cell to the terminal in advance, so when the terminal performs cell selection, cell reselection, or connection re-establishment, the forbidden camping cell is not searched, thereby preventing the terminal from attempting to prohibit the camping cell.
  • the possibility of terminal camping failure is reduced, thereby reducing the time it takes for the terminal to perform cell selection, cell reselection, or connection re-establishment.
  • FIG. 1 is a schematic flowchart diagram of an embodiment of a cell camping method on a terminal side of the present invention
  • FIG. 2 is a schematic flowchart diagram of an embodiment of a cell camping method on a base station side of the present invention
  • FIG. 3 is a schematic structural diagram of an embodiment of a terminal of the present invention.
  • FIG. 4 is a schematic structural diagram of an embodiment of a base station of the present invention. detailed description
  • the terminals in the following refer to various types of user equipment such as mobile communication terminals, UEs, MEs (Mobile Equipments), and other devices supporting various types of wireless communication technologies.
  • Base stations in the following include, but are not limited to, Node B, eNB (evolved Node B, evolved base station), access point.
  • FIG. 1 is a schematic flowchart of an embodiment of a cell camping method on the terminal side of the present invention.
  • the method flow of Figure 1 includes:
  • Step S11 Receive a frequency band list or a cell list from the base station, where the cell in the frequency band list or the cell list is a forbidden camping cell.
  • the base station transmits the information of the forbidden cell to the terminal in the manner of the frequency band list when one or some frequency bands are all provided for use by the forbidden camping cell.
  • the base station transmits the information of the camping cell to the terminal in a cell list manner.
  • the frequency band in the frequency band list in step S11 may be an NCT frequency band, and the NCT frequency band means that all cells in the frequency band are NCT cells.
  • the cell in the cell list in step S11 is an NCT cell. Since the NCT cell cannot be independently configured for the terminal, it can only be configured as a secondary cell to the terminal, so An NCT cell is a cell in which a terminal is prohibited from camping.
  • the first is that the terminal reads the SIB (System Information Block) message of the cell broadcast, where the SIB message carries the frequency band list or the cell list.
  • the base station can extend the existing SIB message to carry the uplink frequency band list or the cell list information, or the base station newly adds a SIB message specifically carrying the frequency band list or the cell list.
  • the terminal can access the network, for example, to boot the attached network, and read the SIB message broadcast by the cell.
  • the other is that the RRC (Radio Resource Control) connection of the terminal is received by the base station, and the RRC connection release message is received from the base station, where the RRC connection release message carries the frequency band list or the cell list.
  • the terminal accesses the network, for example, the terminal is powered on to perform the network attach operation, and the terminal and the base station establish an RRC connection.
  • the base station sends an RRC connection release message to the terminal to release the establishment.
  • the RRC connection may be performed by the base station to carry the frequency band list or the cell list through the RRC connection release message to achieve the purpose of transmitting the information of the forbidden camp cell to the terminal.
  • Step S12 When performing cell selection, cell reselection, or connection re-establishment, the search cell camps, but when searching for a cell, it is prohibited to search for cells in the frequency band list or in the cell list.
  • step S12 The difference between the step S12 and the existing one is that, when cell selection, cell reselection or connection reestablishment is performed, since the camped cell information is prohibited in step S11, the search is not performed in step S12.
  • the process of searching and camping on the remaining cells is well known to those skilled in the art and will not be described herein.
  • the terminal when the terminal selects, reselects, or re-establishes the connection, the terminal does not perform a search for the forbidden camping cell (preferably, the camping cell is prohibited to be an NCT cell), that is, does not attempt to camp in the cell that is prohibited from camping. Therefore, the possibility of terminal camping failure can be reduced, and the time taken by the terminal in performing cell selection, cell reselection, or connection re-establishment can be reduced, and the terminal can be saved.
  • the forbidden camping cell preferably, the camping cell is prohibited to be an NCT cell
  • FIG. 2 it is a schematic flowchart of an embodiment of a cell camping method on a base station side of the present invention.
  • the method flow of Figure 2 includes:
  • Step S21 Obtain a frequency band list or a cell list, where the cells in the frequency band list or the cell list are prohibited to camp on the cell.
  • the base station may obtain a frequency band list or a cell list of a base station in the network or an adjacent base station by using OAM (Operation and Maintenance Management), etc.
  • the frequency band list may refer to the NCT frequency band
  • the cell list obtained here may refer to the NCT cell list, that is, the cell in the cell list is an NCT cell. It should be noted that if a certain frequency band is planned to be used by a prohibited camping cell during the network planning period, the above operation is performed to obtain a frequency band list; if in the network planning, a certain frequency band is planned to be both When it is forbidden to camp on the cell and used by the normal cell, the above operation is performed to obtain the cell list.
  • Step S22 Send the frequency band list or the cell list to the terminal, to instruct the terminal to search for a cell in the frequency band list or in the cell list when performing cell selection, cell reselection, or connection re-establishment.
  • step S21 is not necessary.
  • the base station may perform step S21 only once and perform step S22 a plurality of times.
  • One is to broadcast the SIB information, and carry the frequency band list or cell list in the SIB information.
  • the base station can extend the existing SIB message to carry the uplink frequency band list or the cell list information, or the base station newly adds a SIB message specifically carrying the frequency band list or the cell list.
  • the other is to carry the frequency band list or the cell list in the RRC connection release message by sending an RRC connection release message to the terminal.
  • the terminal accesses the network, for example, the terminal is powered on for network attachment operation, and the base station and the terminal establish an RRC connection. After the RRC connection is established, the base station sends an RRC connection release message to the terminal before the terminal enters the idle state.
  • the established RRC connection in which the base station can carry the frequency band list or the cell list through the RRC connection release message, so as to achieve the purpose of transmitting the information of the forbidden camp cell to the terminal.
  • the base station sends the information of the forbidden cell to the terminal in advance, so that the terminal does not attempt to camp in the cell that is prohibited from camping in the cell selection, cell reselection, or connection re-establishment, thereby lowering the terminal station.
  • the possibility of failure is left, thereby reducing the time taken by the terminal to perform cell selection, cell reselection, or connection re-establishment, and this method is advantageous for implementing terminal energy saving.
  • FIG. 3 is a schematic structural diagram of an embodiment of a terminal of the present invention.
  • the terminal 1 includes: a receiving unit 11 configured to receive a frequency band list or a cell list from a base station, where the cell in the frequency band list or the cell list is a forbidden camping cell.
  • the base station transmits the information of the forbidden cell to the terminal in a band list manner when one or some frequency bands are all provided for use by the forbidden camping cell.
  • a certain frequency band is provided to the no-parking cell
  • the base station transmits the information of the camping cell to the terminal in a cell list manner.
  • the frequency band in the foregoing frequency band list may be an NCT frequency band, and the NCT frequency band means that all cells in the frequency band are NCT cells.
  • the cell in the cell list in the above is an NCT cell. Since the NCT cell cannot be independently configured to the terminal, it can only be configured as a secondary cell to the terminal. Therefore, the NCT cell is a cell in which the terminal is prohibited from camping.
  • the receiving unit 11 is configured to read a SIB (System Information Block) message broadcast by the cell, where the SIB message carries the frequency band list or the cell list.
  • SIB System Information Block
  • the base station can extend the existing SIB message to carry the upper band list or the cell list information, or the base station adds a SIB message specifically carrying the band list or the cell list.
  • the terminal accesses the network, for example, the power-on attachment network is performed, and the SIB message broadcast by the cell is read by the receiving unit 11.
  • the receiving unit 11 is configured to receive an RRC connection release message from the base station when the RRC connection of the terminal is released by the base station, where the RRC connection release message carries the frequency band list or the cell list.
  • the terminal accesses the network, for example, the terminal is powered on for network attachment operation, and the terminal and the base station establish an RRC connection.
  • the base station sends an RRC connection release message to the terminal before the terminal enters the idle state.
  • the established RRC connection at this time, the base station may carry the frequency band list or the cell list through the RRC connection release message to achieve the purpose of transmitting the information of the forbidden camp cell to the terminal.
  • the searching unit 12 is configured to search for a cell to camp when performing cell selection, cell reselection, or connection re-establishment, but when searching for a cell, prohibit searching for a cell in the cell list or in the cell list received by the receiving unit 11.
  • the difference between the search unit 12 and the existing one is that when performing cell selection, cell reselection or connection re-establishment, since the receiving unit 11 has received the forbidden camping cell information, the searching unit 12 does not search for these cells.
  • the process of the search unit 12 searching and camping on the remaining cells is well known to those skilled in the art, and details are not described herein.
  • the terminal when the terminal selects, reselects, or re-establishes the connection, the terminal does not perform a search for the forbidden camping cell (preferably, the camping cell is prohibited to be an NCT cell), that is, does not attempt to camp in the cell that is prohibited from camping. Therefore, the possibility of terminal camping failure can be reduced, and the time taken by the terminal in performing cell selection, cell reselection, or connection re-establishment can be reduced, and the terminal can be saved.
  • FIG. 4 is a schematic structural diagram of an embodiment of a base station according to the present invention.
  • the base station 2 includes: an obtaining unit 21, configured to acquire a frequency band list or a cell list, where the cell in the frequency band list or the cell list is a forbidden camping cell.
  • the obtaining unit 21 may obtain the frequency band list or the cell list of the base station in the network or the adjacent base station by using an OAM (Operation and Maintenance Management), etc.
  • the frequency band list obtained herein may refer to the NCT frequency band
  • the cell obtained here The list may refer to an NCT cell list, that is, the cell in the cell list is an NCT cell. It should be noted that, if a certain frequency band is planned to be used by a prohibited camping cell during the network planning period, the above operation is performed to obtain a frequency band list; if in the network planning, a certain frequency band is planned as When it is forbidden to camp on the cell and used by the normal cell, the above operation is performed to obtain the cell list.
  • the forbidden camping cell may refer to those that are configured to use the NCT carrier. Since the cell is configured to use the NCT carrier, the cell cannot be independently configured to the terminal, and can only be configured as a secondary cell to the terminal. Any resident attempts on this cell will fail.
  • the sending unit 22 is configured to send the frequency band list or the cell list to the terminal, to instruct the terminal to search for a cell in the frequency band list or in the cell list when performing cell selection, cell reselection, or connection re-establishment.
  • the acquisition operation of the acquisition unit 21 is not necessary during each transmission of the transmission unit 22.
  • the base station can perform the acquisition unit 21 only once and the transmission unit 22 multiple times.
  • One is to broadcast the SIB information, and carry the frequency band list or cell list in the SIB information.
  • the base station can extend the existing SIB message to carry the uplink frequency band list or the cell list information, or the base station newly adds a SIB message specifically carrying the frequency band list or the cell list.
  • the other is to carry the frequency band list or the cell list in the RRC connection release message by sending an RRC connection release message to the terminal.
  • the terminal accesses the network, for example, the terminal is powered on for network attachment operation, and the base station and the terminal establish an RRC connection. After the RRC connection is established, the base station sends an RRC connection release message to the terminal before the terminal enters the idle state.
  • the established RRC connection in which the base station can carry the frequency band list or the cell list through the RRC connection release message, so as to achieve the purpose of transmitting the information of the forbidden camp cell to the terminal.
  • the base station sends the information of the forbidden cell to the terminal in advance, thereby causing the terminal to In cell selection, cell reselection or connection re-establishment, no attempt is made to camp in a cell that is forbidden to camp, so that the possibility of terminal camping failure can be reduced, thereby reducing terminal selection, cell reselection or connection reestablishment.
  • the time spent in the immediate time, and this way is conducive to energy saving in the terminal.
  • the storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM).

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  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

本发明实施例公开了一种小区驻留方法,包括:接收来自基站的频段列表或小区列表,所述频段表下或小区列表中的小区为禁止驻留小区;当进行小区选择、小区重选或连接重建立时,搜索小区进行驻留,但在搜索小区时,禁止搜索所述频段列表下或小区列表中的小区。本发明实施例还公开了一种终端和基站。采用本发明,可以减少终端在进行小区选择、小区重选或连接重建立时所耗费的时间。

Description

小区驻留方法、 终端和基站 技术领域
本发明涉及移动通信领域, 尤其涉及一种小区驻留方法、 终端和基站。 背景技术
CA(Carrier Aggregation , 载 波 聚 合 ) 是 LTE-A ( Long Term Evolution-Advanced, 高级长期演进)在其 Release-10版本里提出的可以显著提 高频谱效率和用户吞吐量的技术。 其思想是 UE ( User Equipment, 用户设备) 可以同时使用多个 CC ( Component Carrier, 成员载波)进行上下行通信, 其中 每个成员载波分别对应一个小区, 这些小区有相同或重叠的覆盖区域, 在这些 聚合的小区中, 其中一个是 PCell ( Primary Cell , 主小区), 其他的是 SCell(Secondary Cell, 辅小区)。
在 LTE-A的 Release- 11版本里, 引入了 NCT ( new carrier type, 新载波类 型)载波的概念,该 NCT载波主要用于 CA的增强技术,其增强效果体现在: 增 强频谱效率, 提高异构网络支持和节能三方面。 并且在 Release- 11版本里规定: NCT小区 (使用 N CT载波的小区)不能独立配置给 UE, 只能作为辅小区配置 给 UE, 也就是 UE不能在 NCT小区中驻留。
目前, UE在开机后, 一般首先执行小区选择, 从而驻留在某个小区, 然后 才能发起业务, 且必须在驻留的小区发起业务。 另外, 随着 UE的移动, UE执 行小区重选来更换驻留的小区。 另外,在 UE和小区间的连接发生无线链路失败 时, UE会执行连接重建立操作, 连接重建立的过程首先是进行小区选择, 在选 择的小区上重新建立连接。 通常小区选择或小区重选的过程如下: UE选择某个 频段搜索小区, 在搜索小区时, 根据小区发送的 PSS ( Primary Synchronization Signal, 主同步信号)或 SSS ( Secondary Synchronization Signal, 辅同步信号 ) 来进行小区的同步和识别, 当 UE搜索到小区的 PCI(Physical Cell Identity, 物理 小区标识)时, 读取该小区的***信息, 并测量小区的信号强度, 进而根据测量 结果决定是否在该小区进行驻留。
但是, 由于 NCT小区仍然会向 UE发送 PSS或 SSS, 因此 UE有可能尝试 在 NCT小区中驻留,但是由于 Release- 11版本中规定 UE不能在 NCT小区中驻 留, 因此 UE在 NCT小区中驻留的尝试必然会失败, 这将增加 UE在进行小区 选择或小区重选或连接重建立时所耗费的时间。 发明内容
本发明实施例所要解决的技术问题在于, 提供一种小区驻留方法、 终端和 基站, 可以使终端在进行小区选择、 小区重选或连接重建立时, 减少终端在进 行小区选择、 小区重选或连接重建立时所耗费的时间。
为了解决上述技术问题, 本发明实施例提供了一种小区驻留方法, 包括: 接收来自基站的频段列表或小区列表, 所述频段列表下或小区列表中的小 区为禁止驻留小区;
当进行小区选择、 小区重选或连接重建立时, 搜索小区进行驻留, 但在搜 索小区时, 禁止搜索所述频段列表下或小区列表中的小区。
相应地, 本发明实施例还提供了一种小区驻留方法, 包括:
将频段列表或小区列表发送给终端, 所述频段列表下或小区列表中的小区 为禁止驻留小区, 以指示所述终端在进行小区选择、 小区重选或连接重建立时, 禁止搜索所述频段列表下或小区列表中的小区。
相应地, 本发明实施例还公开了一种终端, 包括:
接收单元, 用于接收来自基站的频段列表或小区列表, 所述频段列表下或 小区列表中的小区为禁止驻留小区;
搜索单元, 用于当进行小区选择、 小区重选或连接重建立时, 搜索小区进 行驻留, 但在搜索小区时, 禁止搜索所述频段列表下或小区列表中的小区。
相应地, 本发明实施例还公开了一种基站, 包括:
发送单元, 用于将频段列表或小区列表发送给终端, 所述频段列表下或小 区列表中的小区为禁止驻留小区, 以指示所述终端在进行小区选择、 小区重选 或连接重建立时, 禁止搜索所述频段列表下或小区列表中的小区。
实施本发明实施例, 具有如下有益效果:
本发明实施例由基站预先将禁止驻留小区的信息发送给终端, 因此在终端 进行小区选择、 小区重选或连接重建立时, 不对禁止驻留小区进行搜索, 从而 避免终端尝试在禁止驻留小区进行驻留, 降低了终端驻留失败的可能性, 从而 减少了终端在进行小区选择、 小区重选或连接重建立时所耗费的时间。 附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案, 下面将对实施 例或现有技术描述中所需要使用的附图作简单地介绍, 显而易见地, 下面描述 中的附图仅仅是本发明的一些实施例, 对于本领域普通技术人员来讲, 在不付 出创造性劳动的前提下, 还可以根据这些附图获得其他的附图。
图 1是本发明的终端侧的小区驻留方法的实施例的流程示意图;
图 2是本发明的基站侧的小区驻留方法的实施例的流程示意图;
图 3是本发明的终端的实施例的结构示意图;
图 4是本发明的基站的实施例的结构示意图。 具体实施方式
下面将结合本发明实施例中的附图, 对本发明实施例中的技术方案进行清 楚、 完整地描述, 显然, 所描述的实施例仅仅是本发明一部分实施例, 而不是 全部的实施例。 基于本发明中的实施例, 本领域普通技术人员在没有作出创造 性劳动前提下所获得的所有其他实施例, 都属于本发明保护的范围。
下述中的终端是指各种类型的用户设备,如移动通信终端、 UE, ME(Mobile Equipment, 移动设备)和支持各种类型的无线通信技术的其它装置。 下述中的基 站包括但不限于: 节点 B(Node B)、 eNB(evolved Node B , 演进型基站),接入点。
请参考图 1 , 是本发明的终端侧的小区驻留方法的实施例的流程示意图。 图 1的方法流程包括:
步骤 S11 ,接收来自基站的频段列表或小区列表, 所述频段列表下或小区列 表中的小区为禁止驻留小区。
其中, 当某个或某些频段均提供给禁止驻留小区使用时, 基站以频段列表 的方式将禁止驻留小区的信息传递给终端。 当某个频段既提供给禁止驻留小区 使用, 又提供给普通小区 (非禁止驻留小区)使用时, 基站以小区列表的方式 将禁止驻留小区的信息传递给终端。
进一步地, 步骤 S11中的频段列表中的频段可以是 NCT频段, NCT频段是 指该频段下所有的小区均为 NCT小区。步骤 S 11中的小区列表中的小区是 NCT 小区。 由于 NCT小区不能独立配置给终端, 只能作为辅小区配置给终端, 因此 NCT小区是终端禁止驻留的小区。
进一步地, 介绍两种从基站接收频段列表或小区列表的方式:
一是终端读取小区广播的 SIB ( System Information Block, ***信息块 ) 消 息, 其中该 SIB 消息携带了所述频段列表或小区列表。 此处基站可以扩展现有 的 SIB 消息, 使其携带上频段列表或小区列表信息, 或者基站新增加一个专门 携带频段列表或小区列表的 SIB 消息。 此处终端可以在接入网络后, 例如进行 开机附着网络, 读取小区广播的 SIB消息。
另一是终端的 RRC ( Radio Resource Control, 无线资源控制 )连接被基站释 放时, 接收来自基站的 RRC连接译放消息, 其中该 RRC连接译放消息中携带 有所述频段列表或小区列表。 此处终端接入网络时, 例如终端开机进行网络附 着操作, 终端和基站会建立 RRC连接; 在 RRC连接建立后, 终端进入到空闲 态前, 基站会向终端发送 RRC连接释放消息, 以释放建立的 RRC连接; 此时 基站可以通过 RRC连接译放消息携带所述频段列表或小区列表, 以达到向终端 传递禁止驻留小区的信息的目的。
步骤 S12, 当进行小区选择、小区重选或连接重建立时,搜索小区进行驻留, 但在搜索小区时, 禁止搜索所述频段列表下或小区列表中的小区。
其中, 步骤 S12与现有的区别是, 在进行小区选择、 小区重选或连接重建 立时, 由于在步骤 S11 已接收了禁止驻留小区信息, 因此步骤 S12不对这些小 区进行搜索。 另外, 对其余小区进行搜索并进行驻留的过程对本领域技术人员 而言是熟知的, 在此不贅述。
本实施例由于终端在小区选择、 小区重选或连接重建立时, 对禁止驻留小 区 (优选地, 禁止驻留小区为 NCT小区)不进行搜索, 即不尝试驻留到禁止驻 留的小区中, 因此可以降低终端驻留失败的可能性, 减少终端在进行小区选择、 小区重选或连接重建立时所耗费的时间, 并且有利于实现终端节能。
请参考图 2, 是本发明的基站侧的小区驻留方法的实施例的流程示意图。 图 2的方法流程包括:
步骤 S21 , 获取频段列表或小区列表, 所述频段列表下或小区列表中的小区 为禁止驻留小区。
其中, 基站可以通过 OAM ( Operation Administration Maintenance, 操作维 护管理)等方式获取网络内或者邻接的基站的频段列表或小区列表; 此处获取 的频段列表可以是指 NCT频段, 此处获取的小区列表可以是指 NCT小区列表, 即该小区列表中的小区是 NCT小区。 需要说明的是, 如果在网络规划期, 将某 个频段整个规划为被禁止驻留小区使用, 则上述中执行的是获取频段列表的操 作; 如果在网络规划时, 将某个频段规划为既被禁止驻留小区使用, 又被普通 小区使用, 则上述中执行的是获取小区列表的操作。
步骤 S22,将所述频段列表或小区列表发送给终端, 以指示所述终端在进行 小区选择、 小区重选或连接重建立时, 禁止搜索所述频段列表下或小区列表中 的小区。
需要说明的是, 在步骤 S22的每次发送过程中, 步骤 S21不是必须的。 例 如: 基站可以仅执行一次步骤 S21 , 而执行多次步骤 S22。
下面介绍两种将所述频段列表或小区列表发送给终端的方式:
一是通过广播 SIB信息, 并在该 SIB信息中携带所述频段列表或小区列表。 此处基站可以扩展现有的 SIB 消息, 使其携带上频段列表或小区列表信息, 或 者基站新增加一个专门携带频段列表或小区列表的 SIB消息。
另一是通过向终端发送 RRC连接译放消息, 在 RRC连接释放消息中携带 所述频段列表或小区列表。 此处终端接入网络时, 例如终端开机进行网络附着 操作, 基站和终端会建立 RRC连接; 在 RRC连接建立后, 终端进入到空闲态 前, 基站会向终端发送 RRC连接译放消息, 以译放建立的 RRC连接, 此时基 站可以通过 RRC连接译放消息携带所述频段列表或小区列表, 以达到向终端传 递禁止驻留小区的信息的目的。
本实施例由于基站预先将禁止驻留小区的信息发送给终端, 从而使得终端 在小区选择、 小区重选或连接重建立, 不会尝试驻留到禁止驻留的小区中, 从 而可以降终端驻留失败的可能性, 从而减少终端在进行小区选择、 小区重选或 连接重建立时所耗费的时间, 并且此种方式利于实现终端节能。
下面对分别执行上述方法的设备进行说明。
请参考图 3 , 是本发明的终端的实施例的结构示意图。 该终端 1包括: 接收单元 11 , 用于接收来自基站的频段列表或小区列表, 所述频段列表下 或小区列表中的小区为禁止驻留小区。
其中, 当某个或某些频段均提供给禁止驻留小区使用时, 基站以频段列表 的方式将禁止驻留小区的信息传递给终端。 当某个频段既提供给禁止驻留小区 使用, 又提供给普通小区 (非禁止驻留小区)使用时, 基站以小区列表的方式 将禁止驻留小区的信息传递给终端。
进一步地, 上述中的频段列表中的频段可以是 NCT频段, NCT频段是指该 频段下所有的小区均为 NCT小区。 上述中的小区列表中的小区是 NCT小区。 由于 NCT 小区不能独立配置给终端, 只能作为辅小区配置给终端, 因此 NCT 小区是终端禁止驻留的小区。
进一步地, 介绍两种从基站接收频段列表或小区列表的方式:
一是接收单元 11用于读取小区广播的 SIB ( System Information Block, *** 信息块) 消息, 其中该 SIB 消息携带了所述频段列表或小区列表。 此处基站可 以扩展现有的 SIB 消息, 使其携带上频段列表或小区列表信息, 或者基站新增 加一个专门携带频段列表或小区列表的 SIB消息。 此处终端可以在接入网络后, 例如进行开机附着网络, 通过接收单元 11读取小区广播的 SIB消息。
另一是接收单元 11用于在终端的 RRC连接被基站释放时, 接收来自基站 的 RRC连接释放消息, 其中该 RRC连接释放消息中携带有所述频段列表或小 区列表。 此处终端接入网络时, 例如终端开机进行网络附着操作, 终端和基站 会建立 RRC连接; 在 RRC连接建立后, 终端进入到空闲态前, 基站会向终端 发送 RRC连接释放消息, 以译放建立的 RRC连接; 此时基站可以通过 RRC连 接译放消息携带所述频段列表或小区列表, 以达到向终端传递禁止驻留小区的 信息的目的。
搜索单元 12, 用于当进行小区选择、 小区重选或连接重建立时, 搜索小区 进行驻留, 但在搜索小区时, 禁止搜索接收单元 11接收的频段列表下或小区列 表中的小区。
其中, 搜索单元 12与现有的区别是, 在进行小区选择、 小区重选或连接重 建立时, 由于在接收单元 11 已接收了禁止驻留小区信息, 因此搜索单元 12不 对这些小区进行搜索。 另外, 搜索单元 12对其余小区进行搜索并进行驻留的过 程对本领域技术人员而言是熟知的, 在此不贅述。
本实施例由于终端在小区选择、 小区重选或连接重建立时, 对禁止驻留小 区 (优选地, 禁止驻留小区为 NCT小区)不进行搜索, 即不尝试驻留到禁止驻 留的小区中, 因此可以降低终端驻留失败的可能性, 减少终端在进行小区选择、 小区重选或连接重建立时所耗费的时间, 并且有利于实现终端节能。 请参考图 4, 是本发明的基站的实施例的结构示意图。 该基站 2包括: 获取单元 21 , 用于获取频段列表或小区列表, 所述频段列表下或小区列表 中的小区为禁止驻留小区。
其中 , 获取单元 21可以通过 OAM ( Operation Administration Maintenance , 操作维护管理)等方式获取网络内或者邻接的基站的频段列表或小区列表; 此 处获取的频段列表可以是指 NCT频段, 此处获取的小区列表可以是指 NCT小 区列表, 即该小区列表中的小区是 NCT小区。 需要说明的是, 如果在网络规划 期, 将某个频段整个规划为被禁止驻留小区使用, 则上述中执行的是获取频段 列表的操作; 如果在网络规划时, 将某个频段规划为即被禁止驻留小区使用, 又被普通小区使用, 则上述中执行的是获取小区列表的操作。
在本实例中, 禁止驻留小区可以是指那些被配置为使用 NCT载波的小区, 由于小区被配置为使用 NCT载波, 因此该小区不能独立配置给终端, 只能作为 辅小区配置给终端, 终端任何在该小区上的驻留尝试均会失败。
发送单元 22, 用于将所述频段列表或小区列表发送给终端, 以指示所述终 端在进行小区选择、 小区重选或连接重建立时, 禁止搜索所述频段列表下或小 区列表中的小区。
需要说明的是, 在发送单元 22的每次发送过程中, 获取单元 21的获取操 作不是必须的。 例如: 基站可以仅执行一次获取单元 21 , 而执行多次发送单元 22。
下面介绍两种将所述频段列表或小区列表发送给终端的方式:
一是通过广播 SIB信息, 并在该 SIB信息中携带所述频段列表或小区列表。 此处基站可以扩展现有的 SIB 消息, 使其携带上频段列表或小区列表信息, 或 者基站新增加一个专门携带频段列表或小区列表的 SIB消息。
另一是通过向终端发送 RRC连接译放消息, 在 RRC连接释放消息中携带 所述频段列表或小区列表。 此处终端接入网络时, 例如终端开机进行网络附着 操作, 基站和终端会建立 RRC连接; 在 RRC连接建立后, 终端进入到空闲态 前, 基站会向终端发送 RRC连接译放消息, 以译放建立的 RRC连接, 此时基 站可以通过 RRC连接译放消息携带所述频段列表或小区列表, 以达到向终端传 递禁止驻留小区的信息的目的。
本实施例由于基站预先将禁止驻留小区的信息发送给终端, 从而使得终端 在小区选择、 小区重选或连接重建立, 不会尝试驻留到禁止驻留的小区中, 从 而可以降终端驻留失败的可能性, 从而减少终端在进行小区选择、 小区重选或 连接重建立时所耗费的时间, 并且此种方式利于实现终端节能。
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流程, 是可以通过计算机程序来指令相关的硬件来完成, 所述的程序可存储于一计算 机可读取存储介质中, 该程序在执行时, 可包括如上述各方法的实施例的流程。 其中, 所述的存储介质可为磁碟、 光盘、 只读存储记忆体(Read-Only Memory, ROM )或随机存储记忆体(Random Access Memory, RAM )等。
以上所揭露的仅为本发明较佳实施例而已, 当然不能以此来限定本发明之 权利范围, 本领域普通技术人员可以理解实现上述实施例的全部或部分流程, 并依本发明权利要求所作的等同变化, 仍属于发明所涵盖的范围。

Claims

权 利 要 求
1、 一种小区驻留方法, 其特征在于, 包括:
接收来自基站的频段列表或小区列表, 所述频段列表下或小区列表中的小 区为禁止驻留小区;
当进行小区选择、 小区重选或连接重建立时, 搜索小区进行驻留, 但在搜 索小区时, 禁止搜索所述频段列表下或小区列表中的小区。
2、 如权利要求 1所述的方法, 其特征在于, 所述接收来自基站的频段列表 或小区列表, 包括:
读取小区的***信息块 SIB信息, 所述 SIB信息中携带了所述频段列表或 小区列表; 或者
接收来自基站的无线资源控制 RRC连接译放消息, 所述 RRC连接译放消 息中携带了所述频段列表或小区列表。
3、 如权利要求 1或 2所述的方法, 其特征在于, 所述频段列表中的频段是 新载波类型 NCT频段, 或所述小区列表中的小区是 NCT小区。
4、 一种小区驻留方法, 其特征在于, 包括:
将频段列表或小区列表发送给终端, 所述频段列表下或小区列表中的小区 为禁止驻留小区, 以指示所述终端在进行小区选择、 小区重选或连接重建立时, 禁止搜索所述频段列表下或小区列表中的小区。
5、 如权利要求 4所述的方法, 其特征在于, 所述将频段列表或小区列表发 送给终端, 包括:
广播 SIB信息, 所述 SIB信息携带了所述频段列表或小区列表; 或者 向所述终端发送 RRC连接译放消息, 所述 RRC连接译放消息中携带了所 述频段列表或小区列表。
6、 如权利要求 4或 5所述的方法, 其特征在于, 所述频段列表中的频段是 新载波类型 NCT频段, 或所述小区列表中的小区是 NCT小区;
所述将频段列表或小区列表发送给终端之前, 还包括: 获取所述频段列表 或小区列表。
7、 一种终端, 其特征在于, 包括:
接收单元, 用于接收来自基站的频段列表或小区列表, 所述频段列表下或 小区列表中的小区为禁止驻留小区;
搜索单元, 用于当进行小区选择、 小区重选或连接重建立时, 搜索小区进 行驻留, 但在搜索小区时, 禁止搜索所述频段列表下或小区列表中的小区。
8、 如权利要求 7所述的终端, 其特征在于,
所述接收单元, 用于读取小区的 SIB信息, 所述 SIB信息中携带了所述频 段列表或小区列表; 或者
所述接收单元, 用于接收来自基站的 RRC连接译放消息, 所述 RRC连接 译放消息中携带了所述频段列表或小区列表。
9、 如权利要求 7或 8所述的终端, 其特征在于, 所述频段列表中的频段是 NCT频段, 或所述小区列表中的小区是 NCT小区。
10、 一种基站, 其特征在于, 包括:
发送单元, 用于将频段列表或小区列表发送给终端, 所述频段列表下或小 区列表中的小区为禁止驻留小区, 以指示所述终端在进行小区选择、 小区重选 或连接重建立时, 禁止搜索所述频段列表下或小区列表中的小区。
11、 如权利要求 10所述的基站, 其特征在于,
所述发送单元, 用于广播 SIB信息, 所述 SIB信息携带了所述频段列表或 小区列表; 或者
所述发送单元, 用于向所述终端发送 RRC连接译放消息, 所述 RRC连接 译放消息中携带了所述频段列表或小区列表。
12、 如权利要求 10或 11所述的基站, 其特征在于, 所述频段列表中的频 段是新载波类型 NCT频段, 或所述小区列表中的小区是 NCT小区;
所述基站还包括: 获取单元, 用于在将所述频段列表或小区列表发送给终 端之前, 获取所述频段列表或小区列表。
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