WO2014063542A1 - 一种载波聚合中管理辅小区的方法和装置 - Google Patents

一种载波聚合中管理辅小区的方法和装置 Download PDF

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Publication number
WO2014063542A1
WO2014063542A1 PCT/CN2013/083588 CN2013083588W WO2014063542A1 WO 2014063542 A1 WO2014063542 A1 WO 2014063542A1 CN 2013083588 W CN2013083588 W CN 2013083588W WO 2014063542 A1 WO2014063542 A1 WO 2014063542A1
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Prior art keywords
secondary cell
cell
carrier aggregation
cells
enb
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PCT/CN2013/083588
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English (en)
French (fr)
Inventor
李静岚
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中兴通讯股份有限公司
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Priority to EP13849485.1A priority Critical patent/EP2914029B1/en
Publication of WO2014063542A1 publication Critical patent/WO2014063542A1/zh
Priority to HK15110065.2A priority patent/HK1209558A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0032Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0001Arrangements for dividing the transmission path
    • H04L5/0003Two-dimensional division
    • H04L5/0005Time-frequency
    • H04L5/0007Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H04L5/001Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0078Timing of allocation
    • H04L5/0087Timing of allocation when data requirements change
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/16Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup
    • H04W76/15Setup of multiple wireless link connections
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0058Allocation criteria
    • H04L5/0064Rate requirement of the data, e.g. scalable bandwidth, data priority

Definitions

  • the present invention relates to the field of Long Term Evolution (LTE) system technologies, and in particular, to a method and apparatus for managing a secondary cell in carrier aggregation.
  • LTE Long Term Evolution
  • the Long Term Evolution-Advanced (LTE-A) system In order to meet the peak rate requirement, the Long Term Evolution-Advanced (LTE-A) system currently supports a maximum bandwidth of 100 MHz. However, it is difficult to find such a large bandwidth in the existing available spectrum resources, and the large bandwidth is for the base station and The hardware design of the terminal brings great difficulties. In addition, for spectrum resources scattered across multiple frequency bands, a technology is needed to make the most of them. Based on the above considerations, the LTE-A system introduces the key technology of Carrier Aggregation (CA).
  • CA Carrier Aggregation
  • Carrier Aggregation is a feature introduced in the 10th edition of the 3rd Generation Partnership Project (3GPP R10, 3rd Generation Partnership Proc ect-Release 10), which can meet the greater bandwidth requirements of LTE-A systems and maintain backward compatibility with LTE systems. Essential technology for sex.
  • 3GPP R10 3rd Generation Partnership Proc ect-Release 10
  • the maximum bandwidth supported by the LTE system is 20 MHz
  • the LTE-A system can support up to 100 MHz bandwidth by aggregating multiple backward compatible carriers for the LTE system.
  • Carrier aggregation means that the base station will have 2 or more component carriers (CCs), up to 5, each of which can be up to 20 MHz.
  • the frequency can be close to each other and can be separated and aggregated together to be user equipment (UE).
  • UE user equipment
  • the primary carrier that is, the primary cell is the cell that the UE randomly accesses, and can be determined when the UE accesses, and the primary cell and the third generation partner plan
  • the 8th version (3GPP R8, 3rd Generation Partnership Project-Release8) or the 3rd Generation Partnership Project's 9th edition (3GPP R9, 3rd Generation Partnership Project-Release9) protocol has the same cell, and its management method is also the same as non-carrier aggregation. Cell management method.
  • the determination of the secondary cell is completely dependent on the selection of the evolved base station (eNB, Evolved Node B), and the management of the secondary cell is also a new content introduced by the carrier aggregation function.
  • eNB evolved base station
  • Evolved Node B evolved Node B
  • An embodiment of the present invention provides a method for managing a secondary cell in a carrier aggregation, where the evolved base station eNB configures a primary cell for the user equipment UE, and the method further includes:
  • Selecting a secondary cell that is supported by the UE and that has the same coverage as the primary cell and the primary frequency and the coverage of the primary d, is configured as a secondary cell of the UE;
  • the secondary cell of the UE is selected from the remaining inter-frequency neighboring cells of the primary cell.
  • the selecting a secondary cell of the UE from the remaining inter-frequency neighboring cells of the primary cell includes: In the remaining inter-frequency neighboring cell of the primary cell of the UE, the UE reports the neighboring cell whose measured signal quality is higher than the A4 measurement event threshold in the 3GPP TS36.331 protocol to the eNB, and the eNB configures the neighboring cell as the auxiliary of the UE. Community.
  • the performing real-time maintenance on the secondary cell of the UE includes:
  • the UE reports the secondary cell of the UE whose measured signal quality is lower than the A2 measurement event threshold in the 3GPP TS36.331 protocol to the eNB, and the eNB deletes the secondary cell.
  • the method further includes:
  • the initial state of the secondary cell of the UE is set to deactivate, and when it is detected that the traffic of the UE increases to a set threshold, the secondary cell of the UE is activated.
  • the embodiment of the present invention further provides a device for managing a secondary cell in a carrier aggregation, where the evolved base station eNB is configured with a primary cell for the user equipment UE, and the device includes:
  • the secondary cell selection module is configured to select a secondary cell that is supported by the UE and that has the same coverage as the primary cell and the inter-frequency neighboring area that includes the coverage of the primary cell is configured as a secondary cell of the UE;
  • the secondary cell supplementary selection module is configured to select a secondary cell of the UE from the remaining inter-frequency neighboring cells of the primary cell when the number of the secondary cells of the UE cannot meet the bandwidth requirement of the carrier aggregation.
  • the secondary cell supplementary selection module is configured to:
  • the neighboring cell whose signal quality measured by the UE is higher than the A4 measurement event threshold in the 3GPP TS36.331 protocol of the 3rd Generation Partnership Project is configured as the secondary cell of the UE.
  • the device further includes:
  • the secondary cell maintenance module is configured to perform real-time maintenance on the secondary cell of the UE.
  • the secondary cell maintenance module includes:
  • the secondary cell update module is configured to update the same-frequency neighboring cell whose signal quality measured by the UE is higher than the A6 measurement event threshold in the 3GPP TS36.331 protocol to the secondary cell of the UE; and/or,
  • the secondary cell deletion module is configured to delete the secondary cell whose signal quality measured by the UE is lower than the A2 measurement event threshold in the 3GPP TS36.331 protocol.
  • the device further includes:
  • the secondary cell uses a module, configured to set an initial state of the secondary cell of the UE to be deactivated, and when detecting that the traffic of the UE increases to a set threshold, activate the secondary cell of the UE.
  • the embodiment of the present invention has at least the following advantages:
  • the method and device for managing a secondary cell in carrier aggregation provided by the embodiment of the present invention solve the problem of management of a secondary cell in carrier aggregation, and use the existing neighboring area configuration technology and measurement technology to implement dynamic management of the secondary cell.
  • the carrier aggregation function provides critical technical support.
  • FIG. 1 is a flowchart of a method for managing a secondary cell in carrier aggregation according to a first embodiment of the present invention
  • FIG. 2 is a flowchart of a method for managing a secondary cell in carrier aggregation according to a second embodiment of the present invention
  • FIG. 3 is a third embodiment of the present invention
  • FIG. 4 is a schematic diagram of a device for managing a secondary cell in carrier aggregation according to a fourth embodiment of the present invention.
  • FIG. 5 is a schematic diagram of a device composition for managing a secondary cell in carrier aggregation according to a fifth embodiment of the present invention.
  • FIG. 6 is a schematic diagram of a device composition for managing a secondary cell in carrier aggregation according to a sixth embodiment of the present invention.
  • FIG. 7 is a schematic diagram of a specific process of an application example 1 of the present invention.
  • FIG. 10 is a schematic diagram of a specific process of an application example 4 of the present invention.
  • the embodiment of the present invention is to implement the carrier aggregation of the LTE system
  • the user equipment UE involved in the embodiment of the present invention must support carrier aggregation, and at least when the UE accesses, improve the carrier aggregation of the eNB side of the improved base station.
  • the function must be turned on.
  • the eNB supports carrier aggregation.
  • a first embodiment of the present invention is a method for managing a secondary cell in carrier aggregation, where the eNB configures a primary cell for the UE, and the method includes the following specific steps:
  • Step S101 Select a secondary cell that is supported by the UE and that has the same coverage as the primary cell and the inter-frequency neighboring area that includes the coverage of the primary cell is configured as a secondary cell of the UE.
  • the primary cell and the neighboring area configuration technologies are all prior art, and therefore are not described in detail herein.
  • Step S102 When the number of the secondary cells of the UE cannot meet the bandwidth requirement of the carrier aggregation, select the secondary cell of the UE from the remaining inter-frequency neighboring cells of the primary cell.
  • the A4 measurement event in the 3GPP TS36.331 protocol is started for the frequency of the remaining inter-frequency neighboring cell of the primary cell of the UE, to configure the secondary cell of the selected UE, and configure the secondary cell of the selected UE.
  • the specific process is as follows: The UE measures whether there is a neighboring cell whose signal quality is higher than the A4 measurement event threshold in the remaining inter-frequency neighboring cell of the primary cell, and if yes, reports it to the eNB, and the eNB configures it as the secondary cell of the UE.
  • the second embodiment of the present invention is substantially the same as the first embodiment.
  • the difference is that the embodiment further includes performing real-time maintenance on the secondary cell of the UE.
  • Step S201 Select a secondary cell that is supported by the UE and that has the same coverage as the primary cell and the inter-frequency neighboring area that is the coverage of the primary cell is configured as a secondary cell of the UE.
  • the primary cell and the neighboring area configuration technologies are all prior art, and therefore are not described in detail herein.
  • Step S202 When the number of the secondary cells of the UE cannot meet the bandwidth requirement of the carrier aggregation, select the secondary cell of the UE from the remaining inter-frequency neighboring cells of the primary cell.
  • the A4 measurement event in the 3GPP TS36.331 protocol is started for the frequency of the remaining inter-frequency neighboring cell of the primary cell of the UE, to configure the secondary cell of the selected UE, and configure the secondary cell of the selected UE.
  • the specific process is as follows: The UE measures whether there is a neighboring cell whose signal quality is higher than the A4 measurement event threshold in the remaining inter-frequency neighboring cell of the primary cell, and if yes, reports it to the eNB, and the eNB configures it as the secondary cell of the UE.
  • Step S203 Perform real-time maintenance on the secondary cell of the UE.
  • the specific process of updating the secondary cell of the UE is: the UE measures the signal quality of the same-frequency neighboring cell of the secondary cell, and reports the same-frequency neighboring cell whose signal quality is higher than the A6 measurement event threshold to the eNB, and the eNB configures it as a new secondary cell replacement. Corresponding original and secondary cells, and notifying the UE to update the original secondary cell.
  • the specific process of deleting the secondary cell that is not suitable for serving the UE is: the UE measures the signal quality of the secondary cell, and reports the secondary cell whose signal quality is lower than the A2 measurement event threshold to the eNB, and the eNB deletes the secondary cell, and notifies the UE to delete the corresponding auxiliary. Community.
  • the embodiment is substantially the same as the second embodiment. The difference is that the embodiment further includes: when configuring each secondary cell of the UE, initializing the secondary cell of the UE. The state is set to deactivate, and when the traffic of the UE increases to the set threshold, the secondary cell of the UE is activated, so that the secondary cell and the primary cell together provide services for the UE without waiting.
  • Step S301 Select a secondary cell that is supported by the UE and that has the same coverage as the primary cell and the inter-frequency neighboring area that is the coverage of the primary cell, and is configured as a secondary cell of the UE, and sets the initial state of the secondary cell of the UE to be deactivated.
  • the primary cell and the neighboring area configuration technologies are all prior art, and therefore are not described in detail herein.
  • Step S302 When the number of the secondary cells of the UE cannot meet the bandwidth requirement of the carrier aggregation, select the secondary cell of the UE from the remaining inter-frequency neighboring cells of the primary cell, and set the initial state of the secondary cell of the UE to be deactivated.
  • Step S303 Perform real-time maintenance on the secondary cell of the UE.
  • the A6 measurement event in the 3GPP TS36.331 protocol is started, and the UE measures the signal quality of the same-frequency neighboring cell of the secondary cell, and the signal quality is higher than the A6 measurement event threshold.
  • the same-frequency neighboring cell is reported to the eNB, and the eNB configures it as a new secondary cell and replaces the corresponding primary and secondary cells to complete the update of the secondary cell of the UE;
  • the UE measures the signal quality of the secondary cell, and reports the secondary cell whose signal quality is lower than the A2 measurement event threshold to the eNB, the eNB Delete it, and notify the UE to delete the corresponding secondary cell, A secondary cell that is not suitable for serving the UE is deleted.
  • Step S304 When the traffic of the UE increases to a set threshold, the secondary cell of the UE is activated, so that the secondary cell serves the UE together with the primary cell.
  • a fourth embodiment of the present invention is a device for managing a secondary cell in carrier aggregation, where the eNB is configured with a primary cell, and the device includes the following components:
  • the secondary cell selection module 10 is configured to select a secondary cell that is supported by the UE and that has the same coverage as the primary cell and the inter-frequency neighboring area that includes the coverage of the primary cell.
  • the primary cell and the neighboring area configuration technologies are all prior art, and therefore are not described in detail herein.
  • the secondary cell supplementary selection module 20 is configured to select a secondary cell of the UE from the remaining inter-frequency neighboring cells of the primary cell when the number of the secondary cells of the UE cannot meet the bandwidth requirement of the carrier aggregation.
  • the secondary cell supplemental selection module 20 initiates an A4 measurement event in the 3GPP TS36.331 protocol for the frequency of the remaining inter-frequency neighboring cell of the primary cell of the UE, and sends an A4 measurement event to the UE, and the UE measures the primary cell.
  • the remaining inter-frequency neighboring cell whether there is a neighboring cell whose signal quality is higher than the A4 measurement event threshold, if yes, is reported to the eNB, specifically the secondary cell supplemental selection module 20, and the secondary cell supplemental selection module 20 configures it as the UE. Secondary cell.
  • the fifth embodiment of the present invention is substantially the same as the fourth embodiment.
  • the apparatus in this embodiment further includes a secondary cell maintenance module 30 configured to perform real-time maintenance on the secondary cell of the UE. .
  • a device for managing a secondary cell in carrier aggregation where the eNB is configured with a primary cell, and the device includes the following components:
  • the secondary cell selection module 10 is configured to select a secondary cell that is supported by the UE and that has the same coverage as the primary cell and the inter-frequency neighboring area that includes the coverage of the primary cell.
  • the secondary cell supplementary selection module 20 is configured to select a secondary cell of the UE from the remaining inter-frequency neighboring cells of the primary cell when the number of secondary cells of the UE cannot meet the bandwidth requirement of the carrier aggregation.
  • the secondary cell supplemental selection module 20 initiates an A4 measurement event in the 3GPP TS36.331 protocol for the frequency of the remaining inter-frequency neighboring cell of the primary cell of the UE, and sends an A4 measurement event to the UE, and the UE measures the primary cell.
  • the remaining inter-frequency neighboring cell whether there is a neighboring cell whose signal quality is higher than the A4 measurement event threshold, if yes, is reported to the eNB, specifically the secondary cell supplemental selection module 20, and the secondary cell supplemental selection module 20 configures it as the UE. Secondary cell.
  • the secondary cell maintenance module 30 is configured to perform real-time maintenance on the secondary cell of the UE.
  • the secondary cell maintenance module 30 includes:
  • the secondary cell update module 301 is configured to start an A6 measurement event in the 3GPP TS36.331 protocol to update the secondary cell of the UE for the frequency of the same-frequency neighboring cell of the secondary cell of the UE, and/or the secondary cell deletion module 302. And configuring, according to the frequency of the secondary cell of the UE, starting the A2 measurement event in the 3GPP TS36.331 protocol, to delete the secondary cell that is not suitable for serving the UE.
  • the specific process of the secondary cell update module 31 for updating the secondary cell of the UE is: the secondary cell update module 31 sends an A6 measurement event to the UE, and the UE measures the signal quality of the same-frequency neighboring cell of the secondary cell, and the signal quality is higher than A6.
  • the same-frequency neighboring cell that measures the event threshold is reported to the eNB, specifically the secondary cell update module 31, and the secondary cell update module 31 configures it as a new secondary cell and replaces the corresponding primary and secondary cells, and notifies the UE to perform the primary secondary secondary cell. Update.
  • the embodiment is substantially the same as the fifth embodiment, except that the apparatus of the embodiment further includes a secondary 'J, the area using module 40.
  • the secondary cell selection module 10 is configured to select a secondary cell that is supported by the UE and that has the same coverage as the primary cell and the inter-frequency neighboring area that includes the coverage of the primary cell.
  • the primary cell and the neighboring area configuration technologies are all prior art, and therefore are not described in detail herein.
  • the secondary cell supplementary selection module 20 is configured to select a secondary cell of the UE from the remaining inter-frequency neighboring cells of the primary cell when the number of the secondary cells of the UE cannot meet the bandwidth requirement of the carrier aggregation.
  • the secondary cell maintenance module 30 is configured to perform real-time maintenance on the secondary cell of the UE.
  • the secondary cell maintenance module 30 includes:
  • the secondary cell update module 301 is configured to start an A6 measurement event in the 3GPP TS36.331 protocol to update the secondary cell of the UE for the frequency of the same-frequency neighboring cell of the secondary cell of the UE, and/or the secondary cell deletion module 302. , configured to start the 3GPP for the frequency of the secondary cell of the UE
  • the A2 measurement event in the TS36.331 protocol is used to delete a secondary cell that is not suitable for serving the UE.
  • the secondary cell usage module 40 is configured to set the initial state of the secondary cell of the UE to be deactivated, and activate the secondary cell of the UE when the traffic of the UE increases to a set threshold.
  • the secondary cell selection module 10, the secondary cell supplementary selection module 20, the secondary cell maintenance module 30, the secondary cell update module 301, the secondary cell deletion module 302, and the secondary cell usage module 40 may all be configured by the central processing unit.
  • CPU Central Processing Unit
  • DSP digital signal processing
  • FPGA Field Programmable Gate Array
  • the eNB determines that the UE supports the CA, and the eNB ensures that its own CA function is enabled.
  • the eNB selects a secondary cell for the UE: selecting a neighboring cell supported by the UE and having the same coverage as the primary cell and the inter-frequency frequency point including the coverage of the primary cell directly as the secondary cell of the UE.
  • Step S13 The eNB determines whether the number of the secondary cells selected in step S12 meets the bandwidth requirement of the carrier aggregation. If not, the UE sends an A4 measurement event of the inter-frequency neighboring frequency point with other coverage relationship with the primary cell, and continues to execute. Step S14; if yes, go directly to step S16.
  • the UE receives the A4 measurement event configuration of the eNB, and starts to measure the specified frequency.
  • the UE reports the cell to the eNB through the A4 measurement report.
  • the eNB selects a neighboring cell in the measurement report reported by the UE as a secondary cell of the UE.
  • the eNB configures the selected secondary cell list by using an RRC connection reconfiguration message.
  • the UE sets the initial state of the selected secondary cell to deactivated.
  • Application Example 2 As shown in FIG. 8, the UE updates the secondary cell, and the specific process includes the following steps: S21: The eNB allocates the A6 measurement event of the same-frequency neighboring cell frequency of the secondary cell to the UE while configuring the secondary cell for the UE.
  • the UE measures the signal quality of the co-frequency neighboring cell of the secondary cell.
  • the cell reports the cell to the eNB through the A6 measurement report.
  • the eNB receives the A6 measurement report of the UE, uses the cell carried in the A6 measurement report as the new secondary cell of the UE, replaces the corresponding original secondary cell, and retransmits the message through the RRC connection. It is known that the UE updates the secondary cell.
  • the UE deletes the secondary cell, and the specific process includes the following steps: S31: When the eNB configures the secondary cell for the UE, the eNB also configures the UE with the A2 measurement event of the frequency of the secondary cell.
  • the UE measures the signal quality of the secondary cell.
  • the UE measures that the signal quality is lower than the A2 measurement event threshold, the UE reports the A2 measurement report of the secondary cell to the eNB.
  • the eNB receives the A2 measurement report of the UE, deletes the corresponding secondary cell, and notifies the UE to delete the corresponding secondary cell by using an RRC connection reconfiguration message.
  • Application Example 4 As shown in Figure 10, the carrier aggregation CA function is enabled, and the secondary cell is selected and configured for the UE to perform real-time maintenance on the secondary cell of the UE.
  • the specific process includes the following steps:
  • the eNB selects a secondary cell for the UE: selecting a neighboring cell supported by the UE and having the same coverage as the primary cell and the inter-frequency frequency point including the coverage of the primary cell directly as the secondary cell of the UE.
  • Step S43 The eNB determines whether the number of the secondary cells selected in step S42 meets the bandwidth requirement of the carrier aggregation. If not, the UE sends an A4 measurement event of the inter-frequency neighboring frequency point with other coverage relationship with the primary cell, and continues to execute. Step S44; if yes, go directly to step S46.
  • the UE receives the A4 measurement event configuration of the eNB, and starts to measure the specified frequency point. When the cell with the A4 measurement threshold is detected, the UE reports the A4 measurement report to the cell.
  • the eNB selects the neighboring cell in the measurement report reported by the UE as the secondary cell of the UE.
  • the eNB configures the selected secondary cell list to the UE by using an RRC connection reconfiguration message, and sets the initial state of the selected secondary cell to be deactivated. At the same time, the UE configures the frequency A2 measurement event of the secondary cell, and A6 measurement event of the same frequency neighboring cell frequency of the secondary cell.
  • S47 The UE performs measurement according to the measurement configuration, when the measured signal quality is higher than the A6 measurement event When the secondary cell of the threshold is used, the UE reports the A6 measurement report of the secondary cell.
  • the method and device for managing a secondary cell in the carrier aggregation solve the management problem of the secondary cell in the carrier aggregation, and implement the configuration and real-time maintenance of the secondary cell by using the existing neighboring area configuration technology and measurement technology. , provides key technical support for the implementation of carrier aggregation.
  • the embodiment of the present invention may first configure a secondary cell for the UE and initially deactivate the network, and directly activate the configured secondary cell when the UE traffic increases, so that the secondary cell immediately provides services to the UE together with the primary cell, without Waiting, saving time for carrier aggregation.

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Abstract

本发明公开了一种载波聚合中管理辅小区的方法,演进型基站eNB为用户设备UE配置有主小区,该方法包括:选择UE支持的、且与主小区是同覆盖范围以及包含主小区覆盖范围的异频邻区配置为UE的辅小区;当UE的辅小区数目不能满足载波聚合的带宽需求时,再从主小区的剩余异频邻区中选择出UE的辅小区。同时,本发明还公开了一种载波聚合中管理辅小区装置。本发明解决了载波聚合中辅小区的管理问题,并灵活运用已有的邻区配置技术和测量技术实现了辅小区的动态管理,为载波聚合功能实现的提供了关键的技术支持。

Description

一种载波聚合中管理辅小区的方法和装置
技术领域
本发明涉及长期演进(LTE, Long Term Evolution ) 系统技术领域, 尤 其涉及一种载波聚合中管理辅小区的方法和装置。
背景技术
为了满足峰值速率要求, 先进长期演进 ( LTE-A, Long Term Evolution-Advanced ) 系统当前支持最大 100MHz带宽, 然而在现有的可用 频谱资源中很难找到如此大的带宽, 而且大带宽对于基站和终端的硬件设 计带来很大困难。 此外, 对于分散在多个频段上的频谱资源, 亟需一种技 术把他们充分利用起来。 基于上述考虑, LTE-A系统引入载波聚合(CA, Carrier Aggregation )这一关键技术。
载波聚合是第三代合作伙伴计划的第 10 版本 (3GPP R10 , 3rd Generation Partnership Proj ect-Release 10 ) 引入的功能, 它能满足 LTE-A系 统更大带宽需求且是保持对 LTE 系统后向兼容性的必备技术。 目前, LTE 系统支持的最大带宽是 20MHz, LTE-A系统通过聚合多个对 LTE系统后向 兼容的载波可以支持到最大 100MHz带宽。 载波聚合是指基站将 2个或更 多数量的成分载波(CC, Component Carrier ),最多 5个,每个最多 20MHz, 频率上可以紧挨者也可间隔开, 聚集起来一起为用户设备 (UE, User Equipment )提供月良务。 UE 随机接入的载波称之为主载波(PCC, Primary carrier component )或者主小区 (PCell, Primary Cell ), 主小区与 UE维持 无线资源控制(RRC, Radio Resource Control )连接, 除主载波之外的载波 称之为辅载波 ( SCC, Secondary carrier component )或者为辅小区 ( SCell, Secondary Cell )。 PCC总是激活的, SCC可通过 PCC或已激活的 SCC来激 活。 载波聚合的场景可以分为 3 种: 带内连续载波聚合 (Intra-Band Contiguous Carrier Aggregation )、 带内非连续载波聚合 ( Intra-Band Non-contiguous Carrier Aggregation ) , 带夕卜非连续载波聚合 ( Inter-Band Non-Contiguous Carrier Aggregation )。
载波聚合的一个技术关键点就是各载波分量的确定; 其中, 主载波即 主小区就是 UE随机接入的小区, 当 UE接入时便可确定, 且主小区与第三 代合作伙伴计划的第 8 版本 ( 3GPP R8 , 3rd Generation Partnership Project-Release8 ) 或第三代合作伙伴计划的第 9 版本 ( 3GPP R9 , 3rd Generation Partnership Project-Release9 )协议中的小区相同, 其管理方法也 同非载波聚合时的小区管理方法。 但辅小区的确定就完全依赖于演进型基 站(eNB, Evolved Node B ) 的选择, 辅小区的管理也是由载波聚合功能引 入的一个新内容, 目前协议对辅小区的管理尚没有明确的规定。
发明内容
本发明实施例要解决的技术问题是, 提供一种载波聚合中管理辅小区 的方法和装置, 为载波聚合提供关键的技术支持。
本发明实施例采用的技术方案是:
本发明实施例提供一种载波聚合中管理辅小区的方法, 演进型基站 eNB为用户设备 UE配置有主小区, 所述方法还包括:
选择 UE支持的、且与主小区是同覆盖范围以及包含主 d、区覆盖范围的 异频邻区配置为 UE的辅小区;
当 UE的辅小区数目不能满足载波聚合的带宽需要时,从主小区的剩余 异频邻区中选择出 UE的辅小区。
上述方案中, 所述从主小区的剩余异频邻区中选择出 UE的辅小区, 包 括: 在 UE的主小区的剩余异频邻区中, UE将测量出的信号质量高于 3GPP TS36.331协议中的 A4测量事件门限的邻区上报至 eNB, eNB配置所述邻 区为 UE的辅小区。
上述方案中, 所述方法还包括: 对 UE的辅小区进行实时维护。
上述方案中, 所述对 UE的辅小区进行实时维护, 包括:
UE将测量出的信号质量高于 3GPP TS36.331协议中的 A6测量事件门 限的同频邻区上报至 eNB, eNB配置将所述同频邻区更新为 UE的辅小区; 和 /或,
UE将测量出的信号质量低于 3GPP TS36.331协议中的 A2测量事件门 限的 UE的辅小区上报至 eNB, eNB将所述辅小区删除。
上述方案中, 所述方法还包括:
将 UE的辅小区的初始状态设为去激活, 当检测到 UE的业务量增大到 设定的门限时, 激活 UE的辅小区。
本发明实施例还提供一种载波聚合中管理辅小区的装置, 演进型基站 eNB为用户设备 UE配置有主小区, 所述装置包括:
辅小区选择模块, 配置为选择 UE支持的、且与主小区是同覆盖范围以 及包含主小区覆盖范围的异频邻区配置为 UE的辅小区;
辅小区补充选择模块,配置为当 UE的辅小区数目不能满足载波聚合的 带宽需要时, 从主小区的剩余异频邻区中选择出 UE的辅小区。
上述方案中, 所述辅小区补充选择模块, 配置为:
在主小区的剩余异频邻区中,将 UE测量出的信号质量高于第三代合作 伙伴计划 3GPP TS36.331协议中的 A4测量事件门限的邻区配置为 UE的辅 小区。
上述方案中, 所述装置还包括:
辅小区维护模块, 配置为对 UE的辅小区进行实时维护。 上述方案中, 所述辅小区维护模块包括:
辅小区更新模块, 配置为将 UE测量出的信号质量高于 3GPP TS36.331 协议中的 A6测量事件门限的同频邻区更新为 UE的辅小区; 和 /或,
辅小区删除模块, 配置为将 UE测量出的信号质量低于 3GPP TS36.331 协议中的 A2测量事件门限的辅小区删除。
上述方案中, 所述装置还包括:
辅小区使用模块, 配置为将 UE的辅小区的初始状态设为去激活, 当检 测到 UE的业务量增大到设定的门限时, 激活 UE的辅小区。
采用上述技术方案, 本发明实施例至少具有下列优点:
本发明实施例提供的载波聚合中管理辅小区的方法和装置, 解决了载 波聚合中辅小区的管理问题, 并灵活运用已有的邻区配置技术和测量技术 实现了辅小区的动态管理, 为载波聚合功能实现的提供了关键的技术支持。
附图说明
图 1 为本发明第一实施例的载波聚合中管理辅小区的方法流程图; 图 2 为本发明第二实施例的载波聚合中管理辅小区的方法流程图; 图 3 为本发明第三实施例的载波聚合中管理辅小区的方法流程图; 图 4 为本发明第四实施例的载波聚合中管理辅小区的装置组成示意 图;
图 5 为本发明第五实施例的载波聚合中管理辅小区的装置组成示意 图;
图 6 为本发明第六实施例的载波聚合中管理辅小区的装置组成示意 图;
图 7 为本发明应用实例 1的具体流程示意图;
图 8 为本发明应用实例 2的具体流程示意图; 图 9 为本发明应用实例 3的具体流程示意图;
图 10 为本发明应用实例 4的具体流程示意图。
具体实施方式 下结合附图及较佳实施例, 对本发明实施例进行详细说明如后。
由于本发明实施例要实现 LTE系统的载波聚合, 本领域技术人员应当 可知, 本发明实施例所涉及的用户设备 UE须支持载波聚合, 至少在 UE接 入时, 改进型基站 eNB侧的载波聚合功能须开启。 在第三代合作伙伴计划 的第 10版本( 3GPP R10, 3rd Generation Partnership Project-Release 10 )协 议中, eNB支持载波聚合功能。
本发明第一实施例, 如图 1所示, 一种载波聚合中管理辅小区的方法, eNB为 UE配置有主小区, 该方法包括以下具体步骤:
步骤 S101, 选择 UE支持的、 且与主小区是同覆盖范围以及包含主小 区覆盖范围的异频邻区配置为 UE的辅小区。
在本发明实施例中, 主小区及邻区配置技术均属于现有技术, 故此处 不详述。
步骤 S102, 当 UE的辅小区数目不能满足载波聚合的带宽需求时, 从 主小区的剩余异频邻区中选择出 UE的辅小区。
具体的,针对 UE的主小区的剩余异频邻区的频点,启动 3GPP TS36.331 协议中的 A4测量事件, 以对选择的 UE的辅小区进行配置, 对选择的 UE 的辅小区进行配置的具体过程为: UE测量主小区的剩余异频邻区中是否有 信号质量高于 A4测量事件门限的邻区, 如果有, 则上报给 eNB, eNB将其 配置为 UE的辅小区。
本发明第二实施例, 如图 2所示, 本实施例与第一实施例大致相同, 区别在于, 本实施例还包括对 UE的辅小区进行实时维护。
一种载波聚合中管理辅小区的方法, eNB为 UE配置有主小区, 该方 法包括以下具体步骤:
步骤 S201, 选择 UE支持的、 且与主小区是同覆盖范围以及包含主小 区覆盖范围的异频邻区配置为 UE的辅小区。
在本发明实施例中, 主小区及邻区配置技术均属于现有技术, 故此处 不详述。
步骤 S202, 当 UE的辅小区数目不能满足载波聚合的带宽需求时, 再 从主小区的剩余异频邻区中选择出 UE的辅小区。
具体的,针对 UE的主小区的剩余异频邻区的频点,启动 3GPP TS36.331 协议中的 A4测量事件, 以对选择的 UE的辅小区进行配置, 对选择的 UE 的辅小区进行配置的具体过程为: UE测量主小区的剩余异频邻区中是否有 信号质量高于 A4测量事件门限的邻区, 如果有, 则上报给 eNB, eNB将其 配置为 UE的辅小区。
步骤 S203, 对 UE的辅小区进行实时维护。
具体的, 针对 UE的辅小区的同频邻区的频点, 启动 3GPP TS36.331 协议中的 A6测量事件, 以更新 UE的辅小区; 和 /或, 针对 UE的辅小区的 频点, 启动 3GPP TS36.331协议中的 A2测量事件, 以删除不适合为 UE服 务的辅小区。
更新 UE的辅小区的具体过程为: UE测量辅小区的同频邻区信号质量, 将信号质量高于 A6测量事件门限的同频邻区上报给 eNB, eNB将其配置为 新的辅小区替换对应的原辅小区, 并通知 UE对原辅小区进行更新。
删除不适合为 UE服务的辅小区的具体过程为: UE测量辅小区的信号 质量,将信号质量低于 A2测量事件门限的辅小区上报给 eNB, eNB将其删 除, 并通知 UE删除对应的辅小区。 本发明第三实施例, 如图 3 所示, 本实施例与第二实施例大致相同, 区别在于, 本实施例还包括: 在配置 UE的每一个辅小区时, 将 UE的辅小 区的初始状态设为去激活,后续当 UE的业务量增大到设定的门限时,激活 UE的辅小区, 使辅小区和主小区一起为 UE提供服务, 而不必再等待。
一种载波聚合中管理辅小区的方法, eNB为 UE配置有主小区, 该方 法包括以下具体步骤:
步骤 S301, 选择 UE支持的、 且与主小区是同覆盖范围以及包含主小 区覆盖范围的异频邻区配置为 UE的辅小区,将 UE的辅小区的初始状态设 为去激活。
在本发明实施例中, 主小区及邻区配置技术均属于现有技术, 故此处 不详述。
步骤 S302, 当 UE的辅小区数目不能满足载波聚合的带宽需求时, 再 从主小区的剩余异频邻区中选择出 UE的辅小区,并将 UE的辅小区的初始 状态设为去激活。
具体的,针对 UE的主小区的剩余异频邻区的频点,启动 3GPP TS36.331 协议中的 A4测量事件, UE将测量出的信号质量高于 A4测量事件门限的 的剩余异频邻区上报给 eNB, eNB将其配置为 UE的辅小区。
步骤 S303, 对 UE的辅小区进行实时维护。
具体的, 针对 UE的辅小区的同频邻区的频点, 启动 3GPP TS36.331 协议中的 A6测量事件, UE测量辅小区的同频邻区信号质量, 将信号质量 高于 A6测量事件门限的同频邻区上报给 eNB, eNB将其配置为新的辅小区 并替换对应的原辅小区, 以完成对 UE的辅小区的更新;
和 /或, 针对 UE的辅小区的频点, 启动 3GPP TS36.331协议中的 A2 测量事件, UE测量辅小区的信号质量, 将信号质量低于 A2测量事件门限 的辅小区上报给 eNB, eNB将其删除, 并通知 UE删除对应的辅小区, 以 删除不适合为 UE服务的辅小区。
步骤 S304, 当 UE的业务量增大到设定的门限时, 激活 UE的辅小区, 以使辅小区与主小区一起为 UE服务。
本发明第四实施例, 如图 4所示, 一种载波聚合中管理辅小区的装置, eNB为 UE配置有主小区, 该装置包括以下组成部分:
1 )辅小区选择模块 10, 配置为选择 UE支持的、 且与主小区是同覆盖 范围以及包含主小区覆盖范围的异频邻区配置为 UE的辅小区。
在本发明实施例中, 主小区及邻区配置技术均属于现有技术, 故此处 不详述。
2 )辅小区补充选择模块 20, 配置为当 UE的辅小区数目不能满足载波 聚合的带宽需求时, 从主小区的剩余异频邻区中选择出 UE的辅小区。
具体的, 辅小区补充选择模块 20针对 UE的主小区的剩余异频邻区的 频点, 启动 3GPP TS36.331协议中的 A4测量事件, 并将 A4测量事件下发 至 UE,UE测量主小区的剩余异频邻区中是否有信号质量高于 A4测量事件 门限的邻区, 如果有, 则上报给 eNB、 具体是辅小区补充选择模块 20, 辅 小区补充选择模块 20将其配置为 UE的辅小区。
本发明第五实施例, 如图 5 所示, 本实施例与第四实施例大致相同, 区别在于, 本实施例的装置还包括辅小区维护模块 30, 配置为对 UE的辅 小区进行实时维护。
一种载波聚合中管理辅小区的装置, eNB为 UE配置有主小区, 该装 置包括以下组成部分:
1 )辅小区选择模块 10, 配置为选择 UE支持的、 且与主小区是同覆盖 范围以及包含主小区覆盖范围的异频邻区配置为 UE的辅小区。
在本发明实施例中, 主小区及邻区配置技术均属于现有技术, 故此处 不详述。 2 )辅小区补充选择模块 20, 配置为当 UE的辅小区数目不能满足载波 聚合的带宽需求时, 从主小区的剩余异频邻区中选择出 UE的辅小区。
具体的, 辅小区补充选择模块 20针对 UE的主小区的剩余异频邻区的 频点, 启动 3GPP TS36.331协议中的 A4测量事件, 并将 A4测量事件下发 至 UE,UE测量主小区的剩余异频邻区中是否有信号质量高于 A4测量事件 门限的邻区, 如果有, 则上报给 eNB、 具体是辅小区补充选择模块 20, 辅 小区补充选择模块 20将其配置为 UE的辅小区。
3 )辅小区维护模块 30, 配置为对 UE的辅小区进行实时维护。 辅小区 维护模块 30包括:
辅小区更新模块 301, 配置为针对 UE的辅小区的同频邻区的频点, 启 动 3GPP TS36.331协议中的 A6测量事件, 以更新 UE的辅小区; 和 /或, 辅小区删除模块 302, 配置为针对 UE 的辅小区的频点, 启动 3GPP TS36.331协议中的 A2测量事件, 以删除不适合为 UE服务的辅小区。
较佳地, 辅小区更新模块 31更新 UE的辅小区的具体过程为: 辅小区 更新模块 31下发 A6测量事件至 UE,UE测量辅小区的同频邻区信号质量, 将信号质量高于 A6测量事件门限的同频邻区上报给 eNB、具体是辅小区更 新模块 31,辅小区更新模块 31将其配置为新的辅小区并替换掉对应的原辅 小区, 并通知 UE对原辅小区进行更新。
辅小区删除模块 32删除不适合为 UE服务的辅小区的具体过程为: 辅 小区删除模块 32下发 A2测量事件至 UE, UE测量辅小区的信号质量, 将 信号质量低于 A2测量事件门限的辅小区上报给 eNB、具体是辅小区删除模 块 32, 辅小区删除模块 32将其删除, 并通知 UE删除对应的辅小区。
本发明第六实施例, 如图 6所示, 本实施例与第五实施例大致相同, 区别在于, 本实施例的装置还包括辅 'J、区使用模块 40。
一种载波聚合中管理辅小区的装置, eNB为 UE配置有主小区, 该装 置包括以下组成部分:
1 )辅小区选择模块 10, 配置为选择 UE支持的、 且与主小区是同覆盖 范围以及包含主小区覆盖范围的异频邻区配置为 UE的辅小区。
在本发明实施例中, 主小区及邻区配置技术均属于现有技术, 故此处 不详述。
2 )辅小区补充选择模块 20, 配置为当 UE的辅小区数目不能满足载波 聚合的带宽需求时, 从主小区的剩余异频邻区中选择出 UE的辅小区。
具体的, 辅小区补充选择模块 20针对 UE的主小区的剩余异频邻区的 频点, 启动 3GPP TS36.331协议中的 A4测量事件, 以选取 UE的辅小区进 4于酉己 。
3 )辅小区维护模块 30, 配置为对 UE的辅小区进行实时维护。 辅小区 维护模块 30包括:
辅小区更新模块 301, 配置为针对 UE的辅小区的同频邻区的频点, 启 动 3GPP TS36.331协议中的 A6测量事件, 以更新 UE的辅小区; 和 /或, 辅小区删除模块 302, 配置为针对 UE 的辅小区的频点, 启动 3GPP
TS36.331协议中的 A2测量事件, 以删除不适合为 UE服务的辅小区。
4 )辅小区使用模块 40,配置为将 UE的辅小区的初始状态设为去激活, 当 UE的业务量增大到设定的门限时, 激活 UE的辅小区。
上述本发明实施例中, 所述辅小区选择模块 10、 辅小区补充选择模块 20、 辅小区维护模块 30、 辅小区更新模块 301、 辅小区删除模块 302、 辅小 区使用模块 40均可由中央处理单元( CPU, Central Processing Unit )、 或数 字信号处理( DSP, Digital Signal Processor) )、或现场可编程门阵列( FPGA, Field Programmable Gate Array )等来实现; 所述 CPU、 DSP以及 FPGA均 位于 eNB侧。
基于第一至六实施例中的技术方案, 介绍四个本发明技术方案的应用 实例。
应用实例 1 : 如图 7所示, 载波聚合 CA功能开启, 为 UE选择并配置 辅小区, 具体流程包括以下步骤:
S11 : 当有 UE接入时, eNB判断出 UE是支持 CA的, 同时 eNB确保 自身的 CA功能开启。
S12: eNB为 UE选择辅小区: 选择 UE支持的、 且与主小区是同覆盖 以及包含主小区覆盖范围的异频频点的邻区直接作为该 UE的辅小区。
S13: eNB判断步骤 S12选择出来的辅小区数目是否满足载波聚合的带 宽需求,若不满足则为该 UE下发与主小区具有其他覆盖关系的异频邻区频 点的 A4测量事件, 继续执行步骤 S14; 若满足则直接到步骤 S16。
S14: UE收到 eNB的 A4测量事件配置, 开始对指定的频点进行测量, 当测量到有满足 A4测量门限的小区时, 将该小区通过 A4测量报告上报给 eNB。
S15: eNB将 UE上报的测量报告中的邻区选为该 UE的辅小区。
S16: eNB将选择出来的辅小区的列表通过 RRC连接重配消息配置给
UE, 并将选择出来的辅小区的初始状态均设置为去激活。
S17: 当 eNB检测到 UE的业务量增大到设定的门限时, 通知 UE激活 辅小区, 使辅小区与主小区一起为 UE提供服务。
应用实例 2: 如图 8所示, 为 UE更新辅小区,具体流程包括以下步骤: S21: eNB为 UE配置辅小区的同时给 UE下发辅小区的同频邻区频点 的 A6测量事件。
S22: UE 测量辅小区的同频邻区信号质量, 当测量到有信号质量高于 A6测量事件门限的小区时, 将该小区通过 A6测量报告上报给 eNB。
S23: eNB收到 UE的 A6测量报告, 将 A6测量报告中携带的小区作 为该 UE新的辅小区, 替换对应的原辅小区, 并通过 RRC连接重配消息通 知 UE更新辅小区。
应用实例 3: 如图 9所示, 为 UE删除辅小区,具体流程包括以下步骤: S31 : eNB为 UE配置辅小区时, 同时给 UE配置辅小区的频点的 A2 测量事件。
S32: UE测量辅小区的信号质量, 当 UE测量到信号质量低于 A2测量 事件门限时, 向 eNB上报该辅小区的 A2测量报告。
S33: eNB收到 UE的 A2测量报告,将对应的辅小区删除,并通过 RRC 连接重配消息通知 UE删除对应的辅小区。
应用实例 4: 如图 10所示, 载波聚合 CA功能开启, 为 UE选择并配 置辅小区, 对 UE的辅小区进行实时维护, 具体流程包括以下步骤:
S41 : 当有 UE接入时, eNB判断出 UE是支持 CA的, 同时 eNB确保 自身的 CA功能开启。
S42: eNB为 UE选择辅小区: 选择 UE支持的、 且与主小区是同覆盖 以及包含主小区覆盖范围的异频频点的邻区直接作为该 UE的辅小区。
S43: eNB判断步骤 S42选择出来的辅小区数目是否满足载波聚合的带 宽需求,若不满足则为该 UE下发与主小区具有其他覆盖关系的异频邻区频 点的 A4测量事件, 继续执行步骤 S44; 若满足则直接到步骤 S46。
S44: UE收到 eNB的 A4测量事件配置, 开始对指定的频点进行测量, 当测量到有满足 A4测量门限的小区时, 将该小区通过 A4测量报告上报给
S45: eNB将 UE上报的测量报告中的邻区选为该 UE的辅小区。
S46: eNB将选择出来的辅小区的列表通过 RRC连接重配消息配置给 UE, 并选择出来的辅小区的初始状态均设置为去激活; 同时给 UE配置辅 小区的频点 A2测量事件、 以及辅小区的同频邻区频点的 A6测量事件。
S47: UE按照测量配置进行测量, 当测量到信号质量高于 A6测量事件 门限的辅小区时, UE上报该辅小区的 A6测量报告。
S48: 当 UE上报了某辅小区的 A6测量报告时, eNB将 A6测量报告 中携带的小区作为该 UE新的辅小区,替换掉对应的原辅小区,并通过 RRC 连接重配消息通知 UE更新辅小区。
S49: 当 eNB检测到 UE的业务量增大到设定的门限时, 通知 UE激活 辅小区, 使辅小区立即与主小区一起为 UE提供服务;
S410: 当 UE上报了某辅小区的 A2测量报告时, eNB通知 UE删除该 辅小区。
本发明实施例所述载波聚合中管理辅小区的方法和装置, 解决了载波 聚合中辅小区的管理问题, 并灵活运用已有的邻区配置技术和测量技术实 现了辅小区的配置和实时维护, 为载波聚合功能实现的提供了关键的技术 支持。
而且, 本发明实施例可以先为 UE配置好辅小区且初始去激活, 当 UE 业务量增大时直接激活配置好的辅小区,使辅小区立即和主小区一起为 UE 提供服务, 而不必再等待, 节省了载波聚合的时间。
通过具体实施方式的说明, 应当可对本发明为达成预定目的所采取的 技术手段及功效得以更加深入且具体的了解, 然而所附图示仅是提供参考 与说明之用, 并非用来对本发明加以限制。

Claims

权利要求书
1、 一种载波聚合中管理辅小区的方法, 演进型基站 eNB 为用户设备 UE配置有主小区, 所述方法还包括:
选择 UE支持的、且与主小区是同覆盖范围以及包含主 d、区覆盖范围的 异频邻区配置为 UE的辅小区;
当 UE的辅小区数目不能满足载波聚合的带宽需求时,从主小区的剩余 异频邻区中选择出 UE的辅小区。
2、 根据权利要求 1所述的载波聚合中管理辅小区的方法, 其中, 所述 从主小区的剩余异频邻区中选择出 UE的辅小区, 包括:
在 UE的主小区的剩余异频邻区中, UE将测量出的信号质量高于第三 代合作伙伴计划 3GPP TS36.331协议中的 A4测量事件门限的邻区上报至 eNB, eNB配置所述邻区为 UE的辅小区。
3、 根据权利要求 1所述的载波聚合中管理辅小区的方法, 其中, 所述 方法还包括: 对 UE的辅小区进行实时维护。
4、 根据权利要求 3所述的载波聚合中管理辅小区的方法, 其中, 所述 对 UE的辅小区进行实时维护, 包括:
UE将测量出的信号质量高于 3GPP TS36.331协议中的 A6测量事件门限 的同频邻区上 ^艮至 eNB, eNB配置将所述同频邻区更新为 UE的辅小区; 和 /或,
UE将测量出的信号质量低于 3GPP TS36.331协议中的 A2测量事件门 限的 UE的辅小区上报至 eNB, eNB将所述辅小区删除。
5、根据权利要求 1至 4中任一项所述的载波聚合中管理辅小区的方法, 其中, 所述方法还包括:
将 UE的辅小区的初始状态设为去激活, 当检测到 UE的业务量增大到 设定的门限时, 激活 UE的辅小区。
6、 一种载波聚合中管理辅小区的装置, 演进型基站 eNB 为用户设备 UE配置有主小区, 所述装置包括:
辅小区选择模块, 配置为选择 UE支持的、且与主小区是同覆盖范围以 及包含主小区覆盖范围的异频邻区配置为 UE的辅小区;
辅小区补充选择模块,配置为当 UE的辅小区数目不能满足载波聚合的 带宽需求时, 从主小区的剩余异频邻区中选择出 UE的辅小区。
7、 根据权利要求 6所述的载波聚合中管理辅小区的装置, 其中, 所述 辅小区补充选择模块, 配置为:
在主小区的剩余异频邻区中,将 UE测量出的信号质量高于第三代合作 伙伴计划 3GPP TS36.331协议中的 A4测量事件门限的邻区配置为 UE的辅 小区。
8、 根据权利要求 6所述的载波聚合中管理辅小区的装置, 其中, 所述 装置还包括:
辅小区维护模块, 配置为对 UE的辅小区进行实时维护。
9、 根据权利要求 8所述的载波聚合中管理辅小区的装置, 其中, 所述 辅小区维护模块包括:
辅小区更新模块, 配置为将 UE测量出的信号质量高于 3GPP TS36.331 协议中的 A6测量事件门限的同频邻区更新为 UE的辅小区; 和 /或,
辅小区删除模块, 配置为将 UE测量出的信号质量低于 3GPP TS36.331 协议中的 A2测量事件门限的辅小区删除。
10、 根据权利要求 6-9中任一项所述的载波聚合中管理辅小区的装置, 其中, 所述装置还包括:
辅小区使用模块, 配置为将 UE的辅小区的初始状态设为去激活, 当检 测到 UE的业务量增大到设定的门限时, 激活 UE的辅小区。
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