WO2013067814A1 - 一种多入多出模式判决方法及无线网络控制器 - Google Patents

一种多入多出模式判决方法及无线网络控制器 Download PDF

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Publication number
WO2013067814A1
WO2013067814A1 PCT/CN2012/076915 CN2012076915W WO2013067814A1 WO 2013067814 A1 WO2013067814 A1 WO 2013067814A1 CN 2012076915 W CN2012076915 W CN 2012076915W WO 2013067814 A1 WO2013067814 A1 WO 2013067814A1
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rnc
cell
information
srnc
frequency
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PCT/CN2012/076915
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English (en)
French (fr)
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林树洪
史莉荣
肖述超
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中兴通讯股份有限公司
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Publication of WO2013067814A1 publication Critical patent/WO2013067814A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0686Hybrid systems, i.e. switching and simultaneous transmission
    • H04B7/0689Hybrid systems, i.e. switching and simultaneous transmission using different transmission schemes, at least one of them being a diversity transmission scheme
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413MIMO systems

Definitions

  • the present invention relates to Wideband Code Division Multiple Access (WCDMA) mobile communication technology, and in particular to a decision method for a multiple input and multiple output mode and a wireless network controller.
  • WCDMA Wideband Code Division Multiple Access
  • the auxiliary antenna is turned off or the tuner frequency is deactivated. It refers to the number of UEs that do not activate MIMO (User Equipment, UE) or MIMO-enabled cells in a cell that supports Multiple Input Multiple Output (MIMO). In rare cases, the secondary antenna is turned off or the tuner channel is deactivated to achieve energy saving and interference reduction techniques.
  • the operation of turning off or turning on the secondary antenna or deactivating or activating the tuner frequency can be triggered by a Radio Network Controller (RNC) or by Node B (Node B).
  • RNC Radio Network Controller
  • Node B Node B
  • RNC triggering When the RNC finds that there are fewer UEs that activate MIMO in the cell, the RNC reconfigures these UEs and configures them as Node Bs to transmit in non-MIMO mode. At the same time, the RNC reconfigures the cell into a single antenna cell through NBAP (Node B application part) signaling.
  • NBAP Node B application part
  • Node B triggering The cell is transmitted by two antennas. If there is no UE that activates MIMO in the cell or there are few UEs that can use MIMO in the cell, the Node B informs the RNC to configure these UEs in non-MIMO mode, when all UEs After switching to the non-MIMO mode, the RNC then notifies the Node B to convert the cell to a single antenna transmission. Summary of the invention
  • the cell under the control of the RNC When the cell under the control of the RNC is turned off by the secondary antenna or the pilot channel is deactivated, the cell will no longer support the MIMO function. Based on the current 3GPP protocol, since the neighboring RNC does not know the change of this capability, when the RNC is a Drifted RNC (DRNC), it will come out. Now the following situation:
  • the UE switches to the cell under the jurisdiction of the Drifted RNC (DRNC), the serving RNC (Serving RNC, SRNC), that is, the neighboring RNC of the drifting RNC does not know that the cell under the jurisdiction of the DRNC does not support the MIMO capability, then The UE is configured in MIMO mode in the radio link setup or add command of the lur interface. Based on the current lur interface signaling, the DRNC cannot change the MIMO mode configured by the SRNC for the UE, and can only reply to the SRNC radio link setup/addition failure, thereby causing the handover to fail;
  • the DRNC can only reply to the SRNC radio link reconfiguration failure, resulting in reconfiguration failure.
  • the technical problem to be solved by the present invention is to provide a multi-input and multi-output mode decision method and a radio network controller.
  • a cell controlled by a DRNC of a UE turns off a secondary antenna or deactivates a supplementary frequency channel, the UE is prevented from using the MIMO mode.
  • the present invention provides a multiple input multiple output (MIMO) mode decision method, including:
  • the first radio network controller sends the pilot frequency status information of the cell to the second RNC adjacent to the first RNC when the secondary antenna is turned off or the secondary pilot channel is deactivated.
  • the second RNC determines the first when establishing or reconfiguring a wireless link for the UE
  • the tuner frequency state of the RNC side cell if the cell's tuner frequency status information is indicated as unavailable, the UE is configured to be in a non-MIMO mode.
  • the method further includes: when the first RNC opens the auxiliary antenna or activates the supplementary frequency channel in the cell under the jurisdiction, sending, by the first RNC, the pilot frequency status information of the cell to the second RNC;
  • the second RNC determines the first when establishing or reconfiguring a wireless link for the UE
  • the tuner frequency state of the RNC side cell if the tuner frequency status information is indicated as available, the UE is configured as a MIMO mode.
  • the method further includes: the second RNC initiates an information exchange initialization process with the first RNC, to the first RNC.
  • the information type of the information exchange initialization request sent is the tuner frequency state.
  • the sending by the first RNC, the cell information of the cell to the second RNC
  • the first RNC sending, by using the information report message, the cell information of the cell to the second RNC.
  • the first RNC sends the touristic frequency status information of the cell to the second RNC by using the information report message
  • the method includes: the first RNC carrying the information about the pilot frequency status in the request data value cell in the information report message .
  • the first RNC carries the supervision frequency status information in the request data value cell in the information report message, and the method includes: the first RNC is activated or deactivated by requesting the secondary common pilot channel in the data value cell.
  • the information cell carries the tuner frequency status information.
  • the present invention also provides a Radio Network Controller (RNC) for implementing a Multiple Input Multiple Output (MIMO) mode decision, comprising a first module and a second module, where:
  • RNC Radio Network Controller
  • MIMO Multiple Input Multiple Output
  • the first module is configured to: when the RNC is used as the drift RNC (DRNC) of the first user equipment (UE1), when the secondary antenna is turned off or the supplementary frequency channel is deactivated for the cell under the jurisdiction, the tuner frequency of the cell is used. Status information is sent to the serving RNC (SRNC) of the UE1;
  • DRNC drift RNC
  • SRNC serving RNC
  • the second module is configured to: when the RNC is used as the SRNC of the MIMO-capable second UE (UE2), when establishing or reconfiguring the radio link for the UE2, determining the tuner frequency of the DRNC side cell of the UE2 Status, if the cell's pilot frequency status information is indicated as unavailable, the UE2 is configured to be in a non-MIMO mode.
  • UE2 MIMO-capable second UE
  • the first module is further configured to: when the RNC is the DRNC of the UE1, when the auxiliary antenna is activated or the supplementary channel is activated, the cell information of the cell is sent to the UE1.
  • SRNC Radio Network Controller
  • the second module is further configured to: when the RNC is used as the SRNC of the MIMO-capable UE2, when establishing or reconfiguring the radio link for the UE2, determining the tuner frequency state of the DRNC side cell of the UE2, if If the cell's pilot frequency status information is indicated as available, the UE2 is configured. For MIMO mode.
  • the RNC further includes a first information exchange initialization module, configured to: initiate an information exchange initialization process with the DRNC of the UE2 when the RNC is the SRNC of the UE2, and perform an information exchange initialization request sent to the DRNC.
  • the setting information type is a pinging frequency state;
  • the RNC further includes a second information exchange initializing module, configured to: when the local RNC is the DRNC of the UE1, receive the information type of the information sent by the SRNC of the UE1 as the ping frequency state After exchanging the initialization request, the SRNC completes the information exchange initialization process with the UE1.
  • the first module is configured to: send the UE's pilot frequency status information to the SRNC of the UE1 by: sending the cell's pilot frequency status information to the SRNC of the UE1 by using the information report message.
  • the first module is configured to: send the UE's pilot frequency status information to the SRNC of the UE1 by using an information report message in the following manner: carrying the UE frequency information in the request data value cell in the information report message .
  • the first module is configured to: carry the pilot frequency status information in the request data value cell in the information message in the following manner: activate or deactivate the secondary common pilot channel in the request data value cell
  • the activation information cell carries the coaching frequency status information.
  • the first RNC (for example, the DRNC of the UE) notifies the neighboring RNC (the SRNC of the UE) that the RNC jurisdiction cell is turned off or the tuner channel is deactivated.
  • the MIMO function is not supported, so that the neighboring RNC can determine whether to configure the MIMO mode for the UE according to the tuner frequency state of the cell that is controlled by the first RNC, and avoid the UE from failing to switch or reconfigure due to using the MIMO mode, and finally making the The tuner frequency deactivation function of an RNC cell can be implemented.
  • Embodiment 1 is a flow chart of Embodiment 1 of the present invention.
  • Embodiment 2 is a flowchart of Embodiment 2 of the present invention.
  • Embodiment 3 is a flowchart of Embodiment 3 of the present invention
  • 4 is a flowchart of Embodiment 4 of the present invention
  • FIG. 5 is a flowchart of Embodiment 5 of the present invention.
  • FIG. 6 is a schematic structural diagram of Embodiment 7 of the present invention. Preferred embodiment of the invention
  • the SRNC of the UE needs to know the pilot frequency state information of the DRNC side cell of the UE. Therefore, the embodiment of the present invention is designed: the first RNC closes the auxiliary antenna or deactivates the tutor in the cell under the jurisdiction. In the case of the frequency channel, the pilot frequency status information of the cell is sent to the second RNC adjacent to the first RNC. In this way, when the first RNC is the drift RNC of the MIMO-capable UE, and the second RNC is the serving RNC of the UE, when the second RNC establishes or reconfigures the radio link for the UE, it first determines the first RNC side.
  • the cell's tuner frequency state if the cell's tuner frequency status information is indicated as unavailable, the UE is configured to be in non-MIMO mode.
  • the primary frequency information of the cell may also be sent to the second RNC; thus the second RNC is established or reconfigured for the UE.
  • the radio link if it is determined that the pilot frequency status information of the first RNC side cell is indicated as being available, the UE is configured to be in the MIMO mode.
  • the RNC is the control RNC (CRNC) of the NodeB, the DRNC of the UE, and the adjacent RNC of the RNC is the SRNC of the UE.
  • CRNC control RNC
  • the DRNC of the UE the DRNC of the UE
  • the adjacent RNC of the RNC is the SRNC of the UE.
  • the following embodiments are described by taking the pilot channel activation or deactivation as an example. The processing of turning on or off the auxiliary antenna is similar, and will not be described again herein.
  • This embodiment describes how the DRNC and SRNC pass the tuner frequency state. As shown in Figure 1, the following steps are included:
  • Step 101 The SRNC initiates an information exchange initialization request to the DRNC, where the object type of the information exchange is a UTRAN (UMTS Terrestrial Radio Access Network) cell, the information type is the tuner frequency state, and the reporting rule is reported when the change occurs;
  • UTRAN UMTS Terrestrial Radio Access Network
  • the coaching frequency status information is sent to the SRNC.
  • the type of object for information exchange can also be set to other values, as determined by the wireless technology employed by the cell.
  • the reporting rule can also be set to report regularly. At this time, the reporting period can be set to be shorter, so that the SRNC can know the DRNC's tuning frequency status in time.
  • the SRNC may initiate an initialization process for all neighboring RNC cells configured as the RNC neighbors, or may initiate an initialization process for the neighboring RNCs found during the call.
  • the DRNC can be one or more than two (two or more).
  • Step 102 The DRNC returns a message exchange initialization response to the SRNC.
  • Step 103 After the initialization of the information exchange is completed, the DRNC performs the information reporting message of the Iur interface to the SRNC through the information reporting message of the Iur interface, as long as the DRNC changes the state of the tuning frequency, that is, when the DRNC closes the secondary antenna or deactivates the supplementary frequency channel. Frequency status information.
  • steps 102 and 103 of the first embodiment have been performed by default.
  • the DRNC of the UE may be reported to the SRNC when the pilot frequency status changes.
  • Step 201 The UE establishes a service in the SRNC by using the MIMO mode.
  • Step 202 The DRNC side cell is activated by the tuner frequency
  • Step 203 The DRNC reports the information report to the SRNC, and carries the cell sponsoring frequency status information, and the value is the activation frequency of the tunering frequency, that is, the tuner frequency is unavailable;
  • Step 204 When the UE gradually moves to the DRNC side cell, report the measurement report to the SRNC to indicate that the cell with the best signal quality is the DRNC cell;
  • Step 205 When the UE switches to the DRNC side cell, the SRNC initiates a radio link establishment procedure on the Iur interface, and reconfigures the UE into a non-MIMO mode.
  • the UE Since the SRNC knows that the tuner frequency of the DRNC side cell is not available, the UE is reconfigured to the non-MIMO mode.
  • the processing procedure in which the SRNC reconfigures the UE into the non-MIMO mode may be: directly hard handover to the cell on the DRNC side, and using the non-MIMO mode, or may be the first soft plus the cell on the DRNC side (ie, the cell on the DRNC side by soft handover)
  • the active set is added, and then the UE is reconfigured to the non-MIMO mode, and then the HS-DSCH (High Speed Downlink Shared Channel) serving cell migration is performed.
  • HS-DSCH High Speed Downlink Shared Channel
  • Step 301 The UE establishes a service in a non-MIMO mode, and switches to a DRNC cell, that is, the HS-DSCH serving cell is a DRNC side cell.
  • Step 302 The DRNC side cell generates a pilot frequency deactivation
  • Step 303 The DRNC reports the information report to the SRNC, and carries the cell sponsoring frequency status information, and the value is deactivated by the tuner frequency;
  • Step 304 When the SRNC initiates a radio link reconfiguration procedure on the Iur interface, the SRNC does not reconfigure the MIMO mode of the UE, and keeps the UE still using the non-MIMO mode.
  • Step 401 The DRNC side cell performs a pilot frequency deactivation
  • Step 402 The DRNC reports the information report to the SRNC, and carries the cell supervision frequency status information, and the value is the activation frequency of the tuner frequency;
  • Step 403 The UE initiates a call, and the SRNC selects to establish a service on the DRNC cell.
  • Step 404 The SRNC initiates a radio link establishment procedure on the Iur interface, and the UE service establishment uses a non-MIMO mode.
  • Step 501 The RNC cell is in a deactivated state of the tuner frequency
  • Step 502 The UE establishes a service by using a non-MIMO mode, where the HS-DSCH serving cell is a DRNC side cell.
  • Step 503 The DRNC side cell initiates a pilot frequency activation process.
  • Step 504 The DRNC reports the information report to the SRNC, and carries the cell sponsoring frequency status information, where the value is the activation of the tuner frequency;
  • Step 505 The SRNC receives the physical channel reconfiguration request sent by the DRNC, and determines that the UE can be reconfigured into the MIMO mode according to the DRNC cell-assisted frequency status information, and does not directly initiate the physical channel reconfiguration command message, but determines the UE and the UE. After the MIMO is supported, the UE is reconfigured to the MIMO mode, and the radio link reconfiguration process is initiated at the lur port, and the Node B is notified to transmit the UE in the MIMO mode.
  • Example 7 As shown in FIG. 6, the RNC implementing the method of the foregoing embodiment includes a first module and a second module. For an RNC, it may simultaneously assume the role of the SRNC and the role of the DRNC:
  • the first module is configured to: when the RNC is used as the DRNC of the first user equipment (UE1), when the secondary antenna is turned off or the supplementary frequency channel is deactivated, the cell of the cell is sent to the cell The SRNC of the UE1;
  • the second module is configured to determine, when the RNC is the SRNC of the MIMO-capable second UE (UE2), when establishing or reconfiguring the radio link for the UE2, determining the tuner frequency of the DRNC side cell of the UE2 Status, if the cell's pilot frequency status information is indicated as unavailable, the UE2 is configured to be in a non-MIMO mode.
  • UE2 MIMO-capable second UE
  • the first module is further configured to: when the local RNC is the DRNC of the UE1, when the auxiliary antenna is activated or the supplementary channel is activated, the cell information of the cell is sent to the UE1.
  • SRNC Radio Network Controller
  • the second module is further configured to: when the RNC is used as the SRNC of the MIMO-capable UE2, when establishing or re-provisioning the radio link for the UE2, determining a tuner frequency state of the DRNC side cell of the UE2, if the cell
  • the UE 2 is configured to be in MIMO mode.
  • the RNC further includes a first information exchange initialization module and a second information exchange initialization module, where: the first information exchange initialization module is configured to initiate information exchange with the DRNC of the UE2 when the local RNC is the SRNC of the UE2.
  • the information type is set to the tuner frequency state in the information exchange initialization request sent to the DRNC;
  • the second information exchange initialization module is configured to receive the information type sent by the SRNC of the UE1 when the local RNC is the DRNC of the UE1.
  • the information exchange initialization process is completed with the SRNC of the UE1.
  • the first module sends the pilot frequency status information of the cell to the SRNC of the UE1 by using an information report message.
  • the tuner frequency status information may be carried in the request data value cell in the information report message.
  • the information channel may be carried or deactivated by requesting the newly added secondary common pilot channel in the data value cell to carry the supervision frequency status information.
  • all or a portion of the above steps may be performed by a program to instruct the associated hardware, such as a read only memory, a magnetic disk, or an optical disk.
  • all or part of the steps of the above embodiments may also be implemented using one or more integrated circuits.
  • each module/unit in the foregoing embodiment may be implemented in the form of hardware, or may be implemented in the form of a software function module. The invention is not limited to any specific form of combination of hardware and software.
  • a first RNC for example, a DRNC of a UE
  • SRNC neighboring RNC
  • the neighboring RNC can determine whether to configure the MIMO mode for the UE according to the tuner frequency state of the cell that the first RNC governs, avoiding the UE failing to switch or reconfigure due to using the MIMO mode, and finally
  • the tuner frequency deactivation function of the first RNC cell can be implemented.

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Abstract

一种多入多出模式判决方法及无线网络控制器,当用户设备(UE)的漂移RNC(DRNC)管辖的小区在关闭辅天线或者去激活辅导频信道后,避免UE因为使用多入多出(MIMO)模式而导致切换或重配失败的问题。所述方法包括:第一无线网络控制器(RNC)在对管辖下的小区关闭辅天线或去激活辅导频信道时,将该小区的辅导频状态信息发送给与第一RNC邻接的第二RNC;当第一RNC为具有MIMO能力的UE的漂移RNC,所述第二RNC为所述UE的服务RNC时,所述第二RNC在为所述UE建立或重配无线链路时,判断第一RNC侧小区的辅导频状态,如果该小区的辅导频状态信息表示为不可用,则将所述UE配置为非MIMO模式。

Description

一种多入多出模式判决方法及无线网络控制器
技术领域
本发明涉及宽带码分多址(Wide band Code Division Multiple Access, WCDMA )移动通信技术, 具体涉及多入多出模式的判决方法及无线网络控 制器。 背景技术
辅天线关闭或者辅导频去激活, 指的是在支持多入多出技术(Multiple Input Multiple Output , MIMO )的小区,在没有激活 MIMO 的用户设备 ( User Equipment, UE )或者激活 MIMO的 UE数量较少的情况下, 关闭辅天线或 者去激活辅导频信道以实现节能和减小干扰的技术。 关闭或打开辅天线或者 去激活或激活辅导频的操作可以由无线网络控制器 (Radio Network Controller, RNC )触发或者节点 B ( Node B )触发。 下面说明两种触发方式 的基本原理:
RNC触发: 当 RNC发现小区中激活 MIMO的 UE比较少时 , RNC对这 些 UE进行重配,将它们配置为 Node B釆用非 MIMO模式发送。 同时, RNC 通过 NBAP ( Node B application part, Node B应用部分协议)信令将小区重 配为单天线小区。
Node B触发: 小区釆用双天线发送, 如果小区中没有激活 MIMO的 UE 或者小区中有很少的可以釆用 MIMO的 UE时, Node B通知 RNC将这些 UE 配置为非 MIMO模式,当所有 UE都转为非 MIMO模式后, RNC再通知 Node B将小区转换为单天线发送。 发明内容
当本 RNC控制下的小区被关闭了辅天线或者去激活了辅导频信道时,小 区将不再支持 MIMO功能。而基于当前 3GPP的协议, 由于邻接 RNC不知道 这种能力的变化, 当该 RNC为漂移 RNC ( Drifted RNC, DRNC ) 时, 会出 现如下情况:
1、 如果 UE向漂移 RNC ( Drifted RNC, DRNC )管辖下的小区切换, 由 于服务 RNC( Serving RNC, SRNC )即漂移 RNC的邻接 RNC并不知道 DRNC 管辖下的小区已经不支持 MIMO能力, 则可能会在 lur接口的无线链路建立 或者添加命令中将 UE配置为 MIMO模式。基于现在的 lur接口信令, DRNC 无法改变 SRNC为 UE配置的 MIMO模式, 则只能回复 SRNC无线链路建立 /添加失败, 从而导致切换失败;
2、如果 UE以非 MIMO模式成功切换到 DRNC管辖下的小区, 当 SRNC 通过无线链路重配激活 UE的 MIMO模式时, DRNC只能回复 SRNC无线链 路重配失败, 从而导致重配失败。
本发明所要解决的技术问题是提供一种多入多出模式判决方法及无线网 络控制器, 当 UE的 DRNC管辖的小区在关闭辅天线或者去激活辅导频信道 后, 避免 UE因为使用 MIMO模式而导致切换或重配失败的问题。
为解决上述技术问题, 本发明提供了一种多入多出 (MIMO )模式判决 方法, 包括:
第一无线网络控制器(RNC )在对管辖下的小区关闭辅天线或去激活辅 导频信道时, 将该小区的辅导频状态信息发送给与第一 RNC 邻接的第二 RNC;
当第一 RNC为具有 MIMO能力的 UE的漂移 RNC ,所述第二 RNC为所 述 UE的服务 RNC时, 所述第二 RNC在为所述 UE建立或重配无线链路时, 判断第一 RNC侧小区的辅导频状态,如果该小区的辅导频状态信息表示为不 可用, 则将所述 UE配置为非 MIMO模式。
优选地, 所述方法还包括: 第一 RNC在对管辖下的小区打开辅天线或激 活辅导频信道时, 将该小区的辅导频状态信息发送给第二 RNC;
当第一 RNC为具有 MIMO能力的 UE的漂移 RNC ,所述第二 RNC为所 述 UE的服务 RNC时, 所述第二 RNC在为所述 UE建立或重配无线链路时, 判断第一 RNC侧小区的辅导频状态,如果辅导频状态信息表示为可用, 则将 所述 UE配置为 MIMO模式。 优选地, 所述第一 RNC将该小区的辅导频状态信息发送给第二 RNC之 前, 所述方法还包括: 所述第二 RNC发起与第一 RNC的信息交换初始化过 程, 在向第一 RNC发送的信息交换初始化请求中设置信息类型为辅导频状 态。
优选地, 所述第一 RNC将该小区的辅导频状态信息发送给第二 RNC, 包括:所述第一 RNC通过信息报告消息将小区的辅导频状态信息发送给第二 RNC。
优选地,所述第一 RNC通过信息报告消息将该小区的辅导频状态信息发 送给第二 RNC, 包括: 所述第一 RNC在信息报告消息中的请求数据值信元 中携带辅导频状态信息。
优选地,所述第一 RNC在信息报告消息中的请求数据值信元中携带辅导 频状态信息, 包括: 所述第一 RNC通过请求数据值信元中的辅公共导频信道 激活或去激活信息信元携带辅导频状态信息。
为解决上述技术问题, 本发明还提供了一种实现多入多出 (MIMO )模 式判决的无线网络控制器(RNC ) , 包括第一模块和第二模块, 其中:
所述第一模块设置为: 在本 RNC作为第一用户设备( UE1 )的漂移 RNC ( DRNC ) 时, 在对管辖下的小区关闭辅天线或去激活辅导频信道时, 将该 小区的辅导频状态信息发送给所述 UE1的服务 RNC ( SRNC ) ;
所述第二模块设置为:在本 RNC作为具有 MIMO能力的第二 UE ( UE2 ) 的 SRNC时, 在为所述 UE2建立或重配无线链路时, 判断该 UE2的 DRNC 侧小区的辅导频状态, 如果该小区的辅导频状态信息表示为不可用, 则将所 述 UE2配置为非 MIMO模式。
优选地, 所述第一模块还设置为: 在本 RNC作为 UE1的 DRNC时, 在 对管辖下的小区打开辅天线或激活辅导频信道时, 将该小区的辅导频状态信 息发送给所述 UE1的 SRNC;
所述第二模块还设置为:在本 RNC作为具有 MIMO能力的 UE2的 SRNC 时, 在为所述 UE2建立或重配无线链路时, 判断该 UE2的 DRNC侧小区的 辅导频状态, 如果该小区的辅导频状态信息表示为可用, 则将所述 UE2配置 为 MIMO模式。
优选地,所述 RNC还包括第一信息交换初始化模块,设置为: 在本 RNC 作为 UE2的 SRNC时, 发起与所述 UE2的 DRNC的信息交换初始化过程, 在向该 DRNC发送的信息交换初始化请求中设置信息类型为辅导频状态; 所述 RNC还包括第二信息交换初始化模块,设置为:在本 RNC作为 UE1 的 DRNC时,接收到所述 UEl的 SRNC发送的信息类型为辅导频状态的信息 交换初始化请求后, 与所述 UE1的 SRNC完成信息交换初始化过程。
优选地, 所述第一模块是设置为: 釆用以下方式将该小区的辅导频状态 信息发送给 UE1的 SRNC: 通过信息报告消息将小区的辅导频状态信息发送 给 UE1的 SRNC。
优选地, 所述第一模块是设置为: 釆用以下方式通过信息报告消息将小 区的辅导频状态信息发送给 UE1的 SRNC: 在信息报告消息中的请求数据值 信元中携带辅导频状态信息。
优选地, 所述第一模块是设置为: 釆用以下方式在信息 告消息中的请 求数据值信元中携带辅导频状态信息: 通过请求数据值信元中的辅公共导频 信道激活或去激活信息信元携带辅导频状态信息。
本发明实施例通过在支持多入多出技术的小区中, 第一 RNC (例如 UE 的 DRNC )通知邻接 RNC ( UE的 SRNC )本 RNC管辖小区因辅天线被关闭 或者辅导频信道被去激活而不支持 MIMO功能, 使得该邻接 RNC可以根据 第一 RNC管辖的小区的辅导频状态,决定是否为该 UE配置 MIMO模式,避 免了 UE因为使用 MIMO模式而导致切换或重配失败,最终使得该第一 RNC 小区的辅导频去激活功能可以实现。 附图概述
图 1为本发明实施例一的流程图;
图 2为本发明实施例二的流程图;
图 3为本发明实施例三的流程图; 图 4为本发明实施例四的流程图;
图 5为本发明实施例五的流程图;
图 6为本发明实施例七的结构示意图。 本发明的较佳实施方式
为了避免相关技术中存在的问题, 首先 UE 的 SRNC 需要知道 UE 的 DRNC侧小区的辅导频状态信息, 因此, 本发明实施例设计: 第一 RNC在对 管辖下的小区关闭辅天线或去激活辅导频信道时, 将该小区的辅导频状态信 息发送给与第一 RNC邻接的第二 RNC。 这样, 当第一 RNC为具有 MIMO 能力的 UE的漂移 RNC, 该第二 RNC为该 UE的服务 RNC时, 该第二 RNC 在为 UE建立或重配无线链路时, 先判断第一 RNC侧小区的辅导频状态, 如 果该小区的辅导频状态信息表示为不可用, 则将 UE配置为非 MIMO模式。 同理, 当第一 RNC在对管辖下的小区打开辅天线或激活辅导频信道时, 也可 以将该小区的辅导频状态信息发送给第二 RNC;这样第二 RNC在为 UE建立 或重配无线链路时, 如果判断第一 RNC侧小区的辅导频状态信息表示为可 用, 则将所述 UE配置为 MIMO模式。
下文中将结合附图对本发明的实施例进行详细说明。 需要说明的是, 在 不冲突的情况下, 本申请中的实施例及实施例中的特征可以相互任意组合。
以下实施例中,本 RNC是 NodeB的控制 RNC ( CRNC ) 、 UE的 DRNC, 本 RNC的邻接 RNC是 UE的 SRNC。 下述实施例以辅导频信道激活或去激 活为例进行说明, 辅天线打开或关闭的处理类似, 本文不再赘述。
实施例一
本实施例描述 DRNC与 SRNC如何传递辅导频状态, 如图 1所示, 包括 以下步骤:
步骤 101 , SRNC向 DRNC发起信息交换初始化请求, 其中信息交换的 对象类型为 UTRAN ( UMTS Terrestrial Radio Access Network, UMTS 陆地无 线接入网) 小区, 信息类型为辅导频状态, 报告法则为变化时上报;
通过将信息类型设置为辅导频状态,使 DRNC在发生辅导频状态变化时, 将辅导频状态信息上 ^艮给 SRNC。 在其他实施例中信息交换的对象类型也可 以设置为其他值, 由小区所釆用的无线技术决定。 此外, 报告法则也可以设 置为定期上报, 此时可以设置上报周期较短, 以便于 SRNC及时获知 DRNC 的辅导频状态。
SRNC可以对所有配置为本 RNC邻区的邻接 RNC小区发起发起初始化 流程, 或者可以对呼叫过程中发现的邻接 RNC发起初始化过程。 该 DRNC 可以是一个或者是多个(两个以上) 。
步骤 102 , DRNC向 SRNC回复信息交换初始化响应;
步骤 103 , 信息交换初始化完成后, 只要发生辅导频状态变化即 DRNC 在对其管辖的小区关闭辅天线或去激活辅导频信道时, DRNC就通过 Iur口的 信息报告消息向 SRNC上 ^艮小区辅导频状态信息。
在后续实施例二-五中, 默认已经执行了实施例一中步骤 102和 103。 当 然, 除了釆用信息交换初始化过程使 UE的 DRNC向 SRNC上报辅导频状态 信息外,也可以釆用其他方式使 UE的 DRNC在辅导频状态变化时,向 SRNC 上报。
实施例二
如图 2所示, 包括以下步骤:
步骤 201 , UE在 SRNC使用 MIMO模式建立业务;
步骤 202, DRNC侧小区发生辅导频去激活;
步骤 203 , DRNC向 SRNC上报信息报告, 携带小区辅导频状态信息, 取值为辅导频去激活, 即表示辅导频不可用;
步骤 204, 当 UE向 DRNC侧小区逐渐移动, 向 SRNC上报测量报告指 示信号质量最好的小区为 DRNC小区;
步骤 205, UE向 DRNC侧小区切换时, SRNC在 Iur口发起无线链路建 立流程, 同时将 UE重配为非 MIMO模式。
由于 SRNC获知 DRNC侧小区的辅导频不可用, 因此将 UE重配为非 MIMO模式。 SRNC将 UE重配为非 MIMO模式的处理流程可以是: 直接硬切换到 DRNC侧的小区,并使用非 MIMO模式,也可以是先软加 DRNC侧的小区(即 通过软切换将 DRNC侧的小区加入激活集 ) ,再将 UE重配为非 MIMO模式, 再做 HS-DSCH( High Speed Downlink Shared Channel,高速下行共享信道) 服 务小区迁移。
实施例三
如图 3所示, 包括以下步骤:
步骤 301 , UE使用非 MIMO模式建立业务, 切换到 DRNC 小区, 即 HS-DSCH服务小区为 DRNC侧小区;
步骤 302, DRNC侧小区发生辅导频去激活;
步骤 303 , DRNC向 SRNC上报信息报告, 携带小区辅导频状态信息, 取值为辅导频去激活;
步骤 304, 当 SRNC在 Iur口发起无线链路重配流程时, SRNC不重配 UE的 MIMO模式 , 保持 UE仍然使用非 MIMO模式。
实施例四
如图 4所示, 包括以下步骤:
步骤 401 , DRNC侧小区发生辅导频去激活;
步骤 402, DRNC向 SRNC上报信息报告, 携带小区辅导频状态信息, 取值为辅导频去激活;
步骤 403 , UE发起呼叫, SRNC选择在 DRNC小区上建立业务; 步骤 404, SRNC在 Iur口发起无线链路建立流程, UE业务建立使用非 MIMO模式。
实施例五
如图 5所示, 包括以下步骤:
步骤 501 , 本 RNC小区处于辅导频去激活状态中;
步骤 502, UE使用非 MIMO模式建立业务, HS-DSCH服务小区为 DRNC 侧小区; 步骤 503 , DRNC侧小区发起辅导频激活流程;
步骤 504, DRNC向 SRNC上报信息报告, 携带小区辅导频状态信息, 取值为辅导频激活;
步骤 505, SRNC收到 DRNC发送的物理信道重配请求, 根据 DRNC小 区辅导频状态信息判断可以将该 UE重配为 MIMO模式时, 并不直接发起物 理信道重配命令消息, 而是判决 UE与业务都支持 MIMO后, 将该 UE重配 为 MIMO模式, 同时在 lur口发起无线链路重配流程, 通知 Node B将该 UE 釆用 MIMO模式发送。
实施例六
为了实现上述各实施例的技术方案, 在信息交换初始化流程中, 需要增 加一种辅导频状态的信息类型, 因此在现有 3GPP协议 TS 25.423基础上, 需 要扩展信元 CHOICE Information Exchange Object Type以及 Information Type 的取值, 如下所示:
9.1.49 INFORMATION EXCHANGE INITIATION REQUEST (信息交互开 始请求)
IE/Group Name (信元 /组名字) Press π Rang IE Type Semantics Criticalit Assigns ce (存 e (氾 and Descriptio y (危害 d 在) 围) Reference n (语意描 性) Criticalit
(参考) 述) y (给定的 危害性)
Message Type (消息类型) M (必填 9.2.1.40 YES (是) Reject (拒 的) 绝)
Transaction ID (事务标识) M 9.2.1.59 -
Information Exchange (信息交 M 9.2.1.31A YES reject 互) ID
CHOICE Information M YES reject
Exchange Object Type (选择
信息交互对象类型)
>Cell (小区) -
»C-ID (小区标识) M 9.2.1.6 May be a
GERAN
cell
identifier
(可以是
GERAN小
区标识)
(GERAN
GSM/EDG
E无线接入
网, GSM即
全球移动通
讯系统,
EDGE即增
强型数据速
率 GSM演
进技术)
>Additional Information -
Exchange Object Types (增力口
信息交互对象类型)
Information Type (信息类 M 9.2.1.31 E YES reject 型)
Information Report M 9.2.1.31 C YES reject
Characteristics (信息报告特
征)
在 CHOICE Information Exchange Object Type信元中增加一个取值选项 "UTRAN Cell" , 表示 UTRAN小区的信息交换对象类型。
在 Information Type 信元中增加一个取值选项 " Secondary CPICH Activation Or Deactivation Information" , 表示辅导频状态的信息类型。 由于本 RNC的小区在辅导频状态变化时,在信息报告消息中, 需要携带 小区辅导频状态信息, 通过扩展信元 Requested Data Value (请求数据值 )来 实现, 如下所示:
.1.52 INFORMATION REPORT (信息报告 )
IE/Group Name Presence Range IE Type Semantics Criticality Assigned and Description Criticality Reference
Message Type M 9.2.1.40 YES Ignore (忽 略)
Transaction ID M 9.2.1.59 ―
Information Exchange M 9.2.1.31A YES ignore ID
CHOICE Information M YES ignore Exchange Object Type
>Cell ―
»Requested Data M 9.2.1.48B
Value Information
(请求数据值信息)
>Additional
Information Exchange
Object Types
9.2.1.48B Requested Data Value Information
Figure imgf000013_0001
9.2.1.48ARequested Data Value
Figure imgf000013_0002
在 Requested Data Value信元中增加一个可选信元 "Secondary CPICH Activation Or Deactivation Information (辅公共导频信道激活或去激活信息) , 表示辅导频状态, 例如可以是 0表示辅导频去激活, 1表示辅导频激活。
实施例七 实现上述实施例方法的 RNC如图 6所示, 包括第一模块和第二模块,对 于一个 RNC而言, 其可能同时担当 SRNC的角色和 DRNC的角色:
所述第一模块, 用于在本 RNC作为第一用户设备(UE1 ) 的 DRNC时, 在对管辖下的小区关闭辅天线或去激活辅导频信道时, 将该小区的辅导频状 态信息发送给所述 UE1的 SRNC;
所述第二模块, 用于在本 RNC作为具有 MIMO能力的第二 UE ( UE2 ) 的 SRNC时, 在为所述 UE2建立或重配无线链路时, 判断该 UE2的 DRNC 侧小区的辅导频状态, 如果该小区的辅导频状态信息表示为不可用, 则将所 述 UE2配置为非 MIMO模式。
优选地, 该第一模块, 还用于在本 RNC作为 UE1的 DRNC时, 在对管 辖下的小区打开辅天线或激活辅导频信道时, 将该小区的辅导频状态信息发 送给所述 UE1的 SRNC;
该第二模块,还用于在本 RNC作为具有 MIMO能力的 UE2的 SRNC时, 在为所述 UE2建立或重配无线链路时, 判断该 UE2的 DRNC侧小区的辅导 频状态, 如果该小区的辅导频状态信息表示为可用, 则将所述 UE2 配置为 MIMO模式。
优选地,该 RNC还包括第一信息交换初始化模块和第二信息交换初始化 模块, 其中: 第一信息交换初始化模块用于在本 RNC作为 UE2的 SRNC时, 发起与所述 UE2的 DRNC的信息交换初始化过程, 在向该 DRNC发送的信 息交换初始化请求中设置信息类型为辅导频状态; 第二信息交换初始化模块 用于在本 RNC作为 UE1的 DRNC时,接收到所述 UE1的 SRNC发送的信息 类型为辅导频状态的信息交换初始化请求后,与所述 UE1的 SRNC完成信息 交换初始化过程。
优选地, 该第一模块通过信息报告消息将小区的辅导频状态信息发送给 UE1 的 SRNC。 具体地, 可在信息报告消息中的请求数据值信元中携带辅导 频状态信息。 进一步地, 可通过请求数据值信元中新增的辅公共导频信道激 活或去激活信息信元携带辅导频状态信息。 本领域普通技术人员可以理解上述方法中的全部或部分步骤可通过程序 来指令相关硬件完成, 所述程序可以存储于计算机可读存储介质中, 如只读 存储器、 磁盘或光盘等。 可选地, 上述实施例的全部或部分步骤也可以使用 一个或多个集成电路来实现。 相应地, 上述实施例中的各模块 /单元可以釆用 硬件的形式实现, 也可以釆用软件功能模块的形式实现。 本发明不限制于任 何特定形式的硬件和软件的结合。
当然, 本发明还可有其他多种实施例, 在不背离本发明精神及其实质的 但这些相应的改变和变形都应属于本发明所附的权利要求的保护范围。
工业实用性 本发明实施例通过在支持多入多出技术的小区中, 第一 RNC (例如 UE 的 DRNC )通知邻接 RNC ( UE的 SRNC )本 RNC管辖小区因辅天线被关闭 或者辅导频信道被去激活而不支持 MIMO功能, 使得该邻接 RNC可以根据 第一 RNC管辖的小区的辅导频状态,决定是否为该 UE配置 MIMO模式,避 免了 UE因为使用 MIMO模式而导致切换或重配失败,最终使得该第一 RNC 小区的辅导频去激活功能可以实现。

Claims

权 利 要 求 书
1、 一种多入多出 (MIM0 )模式判决方法, 包括:
第一无线网络控制器(RNC )在对管辖下的小区关闭辅天线或去激活辅 导频信道时, 将该小区的辅导频状态信息发送给与第一 RNC 邻接的第二 RNC;
当第一 RNC为具有 MIMO能力的 UE的漂移 RNC ,所述第二 RNC为所 述 UE的服务 RNC时, 所述第二 RNC在为所述 UE建立或重配无线链路时, 判断第一 RNC侧小区的辅导频状态,如果该小区的辅导频状态信息表示为不 可用, 则将所述 UE配置为非 MIMO模式。
2、 如权利要求 1所述的方法, 其中,
所述方法还包括:第一 RNC在对管辖下的小区打开辅天线或激活辅导频 信道时, 将该小区的辅导频状态信息发送给第二 RNC;
当第一 RNC为具有 MIMO能力的 UE的漂移 RNC ,所述第二 RNC为所 述 UE的服务 RNC时, 所述第二 RNC在为所述 UE建立或重配无线链路时, 判断第一 RNC侧小区的辅导频状态,如果辅导频状态信息表示为可用, 则将 所述 UE配置为 MIMO模式。
3、 如权利要求 1或 2所述的方法, 其中,
所述第一 RNC将该小区的辅导频状态信息发送给第二 RNC之前, 所述 方法还包括: 所述第二 RNC发起与第一 RNC的信息交换初始化过程, 在向 第一 RNC发送的信息交换初始化请求中设置信息类型为辅导频状态。
4、 如权利要求 1或 2所述的方法, 其中,
所述第一 RNC将该小区的辅导频状态信息发送给第二 RNC, 包括: 所述第一 RNC通过信息报告消息将小区的辅导频状态信息发送给第二 RNC。
5、 如权利要求 4所述的方法, 其中,
所述第一 RNC通过信息报告消息将该小区的辅导频状态信息发送给第 二 RNC, 包括: 所述第一 RNC在信息报告消息中的请求数据值信元中携带辅导频状态 信息。
6、 如权利要求 5所述的方法, 其中,
所述第一 RNC在信息报告消息中的请求数据值信元中携带辅导频状态 信息, 包括:
所述第一 RNC通过请求数据值信元中的辅公共导频信道激活或去激活 信息信元携带辅导频状态信息。
7、 一种实现多入多出 (MIMO )模式判决的无线网络控制器(RNC ) , 包括第一模块和第二模块, 其中:
所述第一模块设置为: 在本 RNC作为第一用户设备( UE1 )的漂移 RNC
( DRNC ) 时, 在对管辖下的小区关闭辅天线或去激活辅导频信道时, 将该 小区的辅导频状态信息发送给所述 UE1的服务 RNC ( SRNC ) ;
所述第二模块设置为:在本 RNC作为具有 MIMO能力的第二 UE ( UE2 ) 的 SRNC时, 在为所述 UE2建立或重配无线链路时, 判断该 UE2的 DRNC 侧小区的辅导频状态, 如果该小区的辅导频状态信息表示为不可用, 则将所 述 UE2配置为非 MIMO模式。
8、 如权利要求 7所述的 RNC, 其中,
所述第一模块还设置为: 在本 RNC作为 UE1的 DRNC时, 在对管辖下 的小区打开辅天线或激活辅导频信道时, 将该小区的辅导频状态信息发送给 所述 UE1的 SRNC;
所述第二模块还设置为:在本 RNC作为具有 MIMO能力的 UE2的 SRNC 时, 在为所述 UE2建立或重配无线链路时, 判断该 UE2的 DRNC侧小区的 辅导频状态, 如果该小区的辅导频状态信息表示为可用, 则将所述 UE2配置 为 MIMO模式。
9、 如权利要求 7或 8所述的 RNC, 其中,
所述 RNC还包括第一信息交换初始化模块,设置为:在本 RNC作为 UE2 的 SRNC时,发起与所述 UE2的 DRNC的信息交换初始化过程,在向该 DRNC 发送的信息交换初始化请求中设置信息类型为辅导频状态; 所述 RNC还包括第二信息交换初始化模块,设置为:在本 RNC作为 UE1 的 DRNC时,接收到所述 UE1的 SRNC发送的信息类型为辅导频状态的信息 交换初始化请求后, 与所述 UE1的 SRNC完成信息交换初始化过程。
10、 如权利要求 7或 8所述的 RNC, 其中,
所述第一模块是设置为: 釆用以下方式将该小区的辅导频状态信息发送 给 UE1的 SRNC:
通过信息报告消息将小区的辅导频状态信息发送给 UE1的 SRNC。
11、 如权利要求 10所述的 RNC, 其中,
所述第一模块是设置为: 釆用以下方式通过信息报告消息将小区的辅导 频状态信息发送给 UE1的 SRNC:
在信息 告消息中的请求数据值信元中携带辅导频状态信息。
12、 如权利要求 11所述的 RNC, 其中,
所述第一模块是设置为: 釆用以下方式在信息报告消息中的请求数据值 信元中携带辅导频状态信息: 通过请求数据值信元中的辅公共导频信道激活 或去激活信息信元携带辅导频状态信息。
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