WO2008022523A1 - Procédé pour commander la mise à jour d'une cellule de service - Google Patents

Procédé pour commander la mise à jour d'une cellule de service Download PDF

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Publication number
WO2008022523A1
WO2008022523A1 PCT/CN2007/001835 CN2007001835W WO2008022523A1 WO 2008022523 A1 WO2008022523 A1 WO 2008022523A1 CN 2007001835 W CN2007001835 W CN 2007001835W WO 2008022523 A1 WO2008022523 A1 WO 2008022523A1
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WIPO (PCT)
Prior art keywords
serving cell
update
cell
radio link
base station
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PCT/CN2007/001835
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English (en)
French (fr)
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WO2008022523A8 (en
Inventor
Huanqiu Ye
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Huawei Technologies Co., Ltd.
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Publication date
Application filed by Huawei Technologies Co., Ltd. filed Critical Huawei Technologies Co., Ltd.
Priority to JP2009524870A priority Critical patent/JP4960455B2/ja
Priority to EP07721408A priority patent/EP2053870A4/en
Publication of WO2008022523A1 publication Critical patent/WO2008022523A1/zh
Publication of WO2008022523A8 publication Critical patent/WO2008022523A8/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/0005Control or signalling for completing the hand-off
    • H04W36/0055Transmission or use of information for re-establishing the radio link
    • H04W36/0069Transmission or use of information for re-establishing the radio link in case of dual connectivity, e.g. decoupled uplink/downlink
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/0005Control or signalling for completing the hand-off

Definitions

  • the present invention relates to the field of mobile communications, and in particular, to a method and apparatus for controlling a cell update. Background technique
  • High Speed Downlink Packet Access is a technology for improving the downlink data rate proposed by the 3GPP organization in the R5 protocol to meet the asymmetry of uplink/downlink data services. It is regarded as a wideband code.
  • the next step in the evolution of the WCDMA (Wideband Code Division Multiple Access) system is to increase the transmission rate of wireless data downloads to 14.4 Mbps (megabits per second) under the WCDMA architecture.
  • This technology is an important technology to improve the downlink capacity and data service rate in the later stage of WCDMA network construction. It realizes the sharing of data packets in channel code and transmission power, and chooses to adopt Adaptive Modulation Code (AMC), hybrid automatic. Techniques such as HARQ (Hybrid Automatic Repeat Request) and fast scheduling further increase the data rate. In this way, HSPDA greatly improves the system's capacity and transmission efficiency, and also improves the quality of user services.
  • AMC Adaptive Modulation Code
  • High-speed downlink shared channel (HS-DSCH: High Speed Downlink) in HSDPA system
  • An HS-DSCH channel can undertake data transmission tasks for multiple users. All users carrying the channel can share the channel by time and by different channel codes.
  • the HS-DSCH channel transmits data every 2 ms (milliseconds), that is, the transmission time interval (TTI: Transmission time interval) is 2 ms, different users. Data can be sent at different times, or different channel codes can be used for data transmission at the same time.
  • TTI Transmission time interval
  • HSDPA High-speed physical downlink shared channel
  • HS-SCCH HS-DCH shared control channel
  • HS-DPCCH Dedicated Physical Control Channel for HS-DSCH
  • HSDPA High Speed Uplink Packet Access
  • Node B the base station
  • HARQ Hybrid Automatic Repeat reQuest
  • HSUPA mainly adds an Enhanced-Dedicated Channel (E-DCH).
  • E-DCH Enhanced-Dedicated Channel
  • HSUPA adds several physical channels at the physical layer: the uplink physical channel adds E-DCH dedicated physical control channel (E-DPCCH: E-DCH Dedicated Physical Control Channel) and E-DCH dedicated physical data channel (E-DPDCH: E -DCH Dedicated Physical Data Channel); The E-DCH Absolute Grant Channel is added to the downlink physical channel, and the E-DCH Relative Grant Channel (E-RGCH: E-DCH Relative Grant Channel) And E-DCH hybrid retransmission acknowledgement indicator channel (E-HICH: E-DCH HARQ Acknowledgement Indicator Channel).
  • E-DCH E-DCH dedicated physical control channel
  • E-DPDCH E-DCH dedicated physical data channel
  • E-DCH Absolute Grant Channel is added to the downlink physical channel
  • E-RGCH E-DCH Relative Grant Channel
  • E-HICH E
  • the uplink E-DPDCH is used to carry the uplink data of the HSUPA user uplink; the uplink E-DPCCH carries the accompanying signaling of the demodulation data channel E-DPDCH.
  • the downlink E-AGCH is a common channel, and the cell where the user services the E-DCH radio connection is located indicates the maximum available transmission rate or power of the UE; the downlink E-RGCH is a dedicated channel, and the uplink transmission rate of the UE can be quickly adjusted according to the time of 2 ms;
  • the downlink E-HICH is a dedicated channel, and the feedback user receives the process data correctly, and reports ACK: Acknowledgement or Negative Acknowledgement (NACK).
  • the HSUPA supports soft handover.
  • the UE can establish E-DCH channels with multiple cells at the same time.
  • Each cell can have E-RGCH and E-HICH channels in the downlink, but each UE only receives the absolute authorization of the E-AGCH channel on one cell.
  • the corresponding cell is called an HSUPA serving cell. If the uplink and downlink services of the UE are carried on the E-DCH and the HS-DSCH channel, the HSDPA serving cell and the HSUPA serving cell of the UE must be the same, and the cell is referred to as a high speed packet access (HSPA) serving cell. .
  • HSPA high speed packet access
  • the UE When it is required to switch from one Node B cell to another Node B cell, the UE usually adds the soft handoff to the current active set, and simultaneously initiates a request to request the new cell to be configured as an HSUPA, HSDPA, or HSPA serving cell. Take the configuration of the new cell as the HSPA serving cell as an example.
  • the signaling process on the existing network side is shown in Figure 1:
  • Step 101 The radio network controller (RNC) sends a radio link setup request to the target Node B, and 'establishes a radio link of the UE in the target Node B cell;
  • Step 102 The NC receives a radio link setup response of the target Node B.
  • Step 103 The RNC initiates a radio link reconfiguration preparation operation to the target Node B, and performs a radio link reconfiguration preparation signaling to notify the target Node B to reconfigure the new cell into an HSPA serving cell.
  • step 104 the RNC receives the target NODE B. Reconfiguration ready to respond;
  • Step 105 The RNC sends a radio link reconfiguration initiation signaling to the target NODE B, including a connection frame number (CFN: Connection Frame Number);
  • the CFN is a unified radio frame-based timing of the UE, the RNC, and the NODE B, and specifies parameters for preparing the signaling according to the reconfiguration at a certain CFN time.
  • the UE, the RNC, and the target NODE B simultaneously switch to the target Node B cell as a service. Community.
  • the value of the CFN is in the range of 0 to 255.
  • Step 106 The RNC reconfigures the preparation signaling by the radio link, and reconfigures the cell of the original NODE B to be the parameter of the non-HSPA serving cell to the original Node B.
  • Step 107 The RNC receives the reconfiguration preparation response of the original NODE B.
  • Step 108 the RNC sends a radio link reconfiguration initiation signaling to the original NODE B, including the CFN;
  • Step 109 The RNC sends a radio link activation set update signaling to the UE, to notify the UE to start a new cell as a serving cell in the same CFN.
  • Step 110 After completing the radio link activation set update, the UE completes the update of the radio link activation set to the RNC.
  • the operation of the existing serving cell update procedure in the target NODE B is usually divided into two steps. First, a radio link is established in the new cell, and then the serving cell is updated by reconfiguration signaling. In this way, at least 5 signalings need to be exchanged between the RNC and the target Node B to update the serving cell, waste transmission resources, and the process efficiency is low. The signaling of the interaction makes the time required to update the serving cell longer, which may cause the service throughput to decrease, and may even cause the soft handover to fail.
  • a main object of the embodiments of the present invention is to provide a control method and apparatus for serving cell update, so as to simplify a serving cell update procedure when a UE needs to switch from one Node B cell to another Node B cell, and reduce system signaling interaction and transmission. Waste of resources.
  • the embodiment of the method for controlling the serving cell update in the present invention is implemented by the following steps:
  • Receiving a radio link setup request of the radio network controller including updating an update time of the serving cell; and switching the base station cell to the serving cell at the update time according to the radio link setup request.
  • the embodiment of the invention further provides a control device for serving cell update, which includes:
  • a radio network controller radio link establishing unit configured to perform signaling interaction with the base station for establishing a radio link, including notifying the base station of an update time of the updated serving cell in the radio link setup request; the radio network controller serving the cell update unit And used to update the serving cell to the base station cell according to the update time.
  • the embodiment of the present invention further provides another control device for serving cell update, including: a base station radio link establishing unit, configured to perform signaling interaction with a radio network controller for establishing a radio link, including receiving a radio link setup request. Update time of the update service cell in the middle;
  • the base station serving cell update unit is configured to switch the base station cell to the serving cell according to the update time of the updated serving cell.
  • the embodiment of the present invention notifies the base station of the serving cell update connection frame number in the radio link setup request signaling, and does not need to perform the radio link reconfiguration signaling interaction process of the target Node B, which simplifies the target NODE B when the serving cell is updated.
  • the signaling process fully satisfies the requirements of the prior art in function, improves the processing speed of the serving cell update, reduces the signaling processing delay of the entire system, and avoids the impact on service throughput and soft handover; The signaling is reduced, saving transmission resources.
  • FIG. 2 is a flowchart of an embodiment of a method for controlling a serving cell update according to the present invention
  • FIG. 3 is a schematic structural diagram of an embodiment of a control system for serving cell update according to the present invention.
  • the embodiment of the present invention may be implemented by adding a serving cell update CFN cell to a cell structure of the radio link setup request signaling, where the cell may be an optional cell, including a CFN for serving cell update,
  • the base station is instructed to update its base station cell to the serving cell at the time corresponding to the CFN.
  • the serving cell updates the CFN cell to establish a wireless link in the base station cell.
  • the radio link setup request signaling is valid, and the RNC updates the CFN cell by the serving cell to set the time at which the Node B side initiates the serving cell update.
  • the RNC may inform the base station whether to perform a service cell update by including or not including the serving cell update CFN cell in the radio link setup request.
  • the Node B updates the CFN cell indication time in addition to establishing the radio link according to the radio link setup request.
  • the base station cell is switched to the serving cell; when the received radio link setup request does not include the serving cell update CFN cell, as in the prior art, the Node B only establishes the radio chain according to the radio link setup request. The road does not switch the base station cell to the serving cell.
  • the serving cell update CFN cell is valid in the radio link setup request signaling; when the radio link is established When the request includes the serving cell update CFN cell, but the corresponding service radio link information is not included, the serving cell update CFN cell is invalid, and the NodeB returns a failure response.
  • Step 201 The RNC sends a radio link setup request signaling to the target Node B, and establishes a radio link of the UE in the target Node B cell, where the request signaling includes a serving cell update CFN cell, where the CFN cell can notify the service.
  • Step 202 The RNC receives a radio link setup response of the target Node B.
  • the target cell update CFN cell If the serving cell update CFN cell is valid in the radio link setup request signaling, usually the target
  • Node B will activate the resources allocated for the new serving radio link at the moment corresponding to the CFN.
  • the target Node B may return to the radio network controller. Wireless link setup failure message.
  • Step 203 The RNC reconfigures the preparation signaling by using the radio link, and reconfigures the cell of the original NODE B to be the parameter of the non-HSPA serving cell to the original Node B.
  • Step 204 The RNC receives a reconfiguration preparation signaling response of the original NODE B.
  • Step 205 the RNC sends a radio link reconfiguration initiation signaling to the original NODE B, including the CFN;
  • the original NODE B cell is stopped as a serving cell at a time corresponding to the CFN.
  • Step 206 The RNC sends a radio link activation set update to the UE, to notify the UE to switch the target Node B cell to the serving cell in the same CFN.
  • Step 207 After the radio link activation set update by the UE is updated, the radio link activation set update is reported to the RNC.
  • the storage medium may be a read only memory, a random access memory, a magnetic disk, an optical disk, or the like.
  • control system for serving cell update in the present invention may have the structure shown in FIG.
  • the radio network controller 310 includes a radio network controller radio link establishing unit 311 and a radio network controller serving cell updating unit 312.
  • the base station 320 includes a base station radio link establishing unit 321, a base station serving cell updating unit 322, and may further include a CFN letter. Element unit 323.
  • the radio network controller radio link establishing unit 311 and the base station radio link establishing unit 321 perform signaling interaction of radio link establishment.
  • the radio link establishment signaling includes a radio link setup request sent by the radio network controller 310 and a radio link request response sent by the base station 320, and the radio network controller radio link establishing unit 311 is in the transmitted radio link setup request.
  • the base station 320 is notified of the update time of the update serving cell, and the radio network controller serving cell update unit 312 updates the serving cell to the cell of the base station 320 at the update time of the updated serving cell.
  • the base station radio link establishing unit 321 When the received radio link setup request includes updating the update time of the serving cell, the base station radio link establishing unit 321 outputs the parameters related to the serving cell handover in the radio link request, including the update time of the update serving cell, to the base station service.
  • the base station serving cell update unit 322 switches the base station cell to the serving cell according to the relevant parameters in the radio link request at the update time of the updated serving cell.
  • the update time of the update serving cell is usually characterized by the serving cell update CFN, and the time corresponding to the CFN is the update time of the updated serving cell.
  • the radio network controller 310 may add a serving cell update CFN cell in the radio link setup request, carrying the CFN updated by the serving cell, and the serving cell update CFN cell may be an optional cell in the radio link setup request.
  • the radio network controller 310 may include the serving cell update CFN cell in the radio link setup request when the base station 320 is required to update the serving cell, and include corresponding service radio link information in the request; the base station 320 is not required to update the service. In the case of a cell, the serving cell update CFN cell is not carried in the radio link setup request.
  • the base station radio link establishing unit 321 of the base station 320 may include a link information module. After receiving the radio link setup request including the serving cell update CFN cell, the base station radio link establishing unit 321 detects, by the link information module, the valid state of the serving cell update CFN cell, that is, detects the radio link setup request. Whether the service radio link information corresponding to the serving cell update is included, and if included, the parameters related to the serving cell handover in the radio link request, including the update time of the update serving cell, are output to the base station serving cell update unit 322; Including, the base station radio link establishing unit 321 returns a failure response to the radio network controller 310.
  • the embodiment of the present invention simplifies the signaling process of the target NODE B by adding a serving cell update CF cell in the radio link setup request signaling, fully satisfies the requirements of the prior art, and improves the serving cell.
  • the updated processing speed reduces the signaling processing delay of the entire system, avoiding the impact on service throughput and soft handover; at the same time, the signaling of system interaction is reduced, and the transmission resources are saved.
  • the above-mentioned serving cell update may be only an HSDPA serving cell update, or only an HSUPA serving cell update, or may be simultaneously updated by the HSDPA serving cell and the HSUPA serving cell, that is, the HSPA monthly cell update.
  • the type of cell update is determined by the presence or absence of HSDPA and HSUPA related cells in the radio link setup request signaling.

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Description

一种服务小区更新的控制方法、 装置
本申请要求于 2006 年 8 月 18 日提交中国专利局、 申请号为 200610062220.2、 发明名称为"一种服务小区更新的控制方法、 装置"的中国专 利申请,以及于 2006年 12月 30日提交中国专利局、申请号为 200610130769.0、 发明名称为"一种服务小区更新的控制方法、装置"的中国专利申请的两项优先 权, 上述申请的全部内容通过引用结合在本申请中。
技术领域
本发明涉及移动通信领域,特别涉及一种服务小区更新的控制方法、装置。 背景技术
高速下行分组接入( HSDPA: High Speed Downlink Packet Access )是 3GPP 组织在 R5协议中为了满足上 /下行数据业务不对称的需求而提出的一种提高 下行数据速率的技术,它被视为宽带码分多址接入(WCDMA: Wideband Code Division Multiple Access ) 系统演化的下一步, 可在 &有的 WCDMA架构下, 将无线数据下载的传输速率提高到 14.4Mbps (兆比特每秒)。 该技术是 WCDMA 网络建设后期提高下行容量和数据业务速率的一种重要技术, 实现 数据分组在信道码和发射功率上的共享, 并选择采用自适应调制编码 (AMC: Adaptive Modulation Code)、 混合自动重传 (HARQ: Hybrid Automatic Repeat Request)和快速调度等技术进一步提高数据速率。这样, HSPDA大大提高了系 统的容量和频傳效率, 也提高了用户服务的质量。
HSDPA系统中,通过高速下行共享信道(HS-DSCH: High Speed Downlink
Shared Channel )来传输用户数据。 一条 HS-DSCH信道可以承担多个用户的 数据发送任务。所有承载于该信道的用户可以分时间和分不同信道码来共享该 信道, HS-DSCH信道每 2ms(毫秒)发送一次数据,也就是传输时间间隔( TTI: Transmission time interval)为 2ms , 不同用户可以在不同的时间 ΤΤΙ发送数据, 也可以在相同的时间 ΤΤΙ而使用不同的信道码进行数据发送。
在 HSDPA物理层, 下行新增加了高速物理下行共享信道( HS-PDSCH: High Speed Physical Downlink Shared Channel)和 HS-DSCH共享控制信道 ( HS-SCCH: Shared Control Channel for HS-DSCH), 上行新增加了高速专用 物理控制信道( HS-DPCCH: Dedicated Physical Control Channel for HS-DSCH)。 HSDPA不支持软切换, 即对于每个用户装置 (UE: User Equipment )下行只 存在一个小区的 HS-PDSCH信道向其发送数据,因此该小区称也为 HSDPA服 务小区。
在引入 HSDPA之后, 为了减少因下行链路负载的增长而引起的上行链路 容量短缺, 进一步提高单用户和系统的上行平均吞吐率、 容量以及缩短延迟, 从而更好地开展多媒体业务和包数据传输, 又引入了高速上行分组接入 ( HSUPA: High Speed Uplink Packet Access )技术。 这是 3GPP组织在 R6协 议中引入的一种提高上行传送速率的新技术, 采用基站(Node B )的上行快速 调度、 物理层混合重传 ( HARQ: Hybrid Automatic Repeat reQuest )> 软切换、 2ms TTI短帧传输技术, 理论上可以支持最高峰值速率 5.76Mbps。
HSUPA主要增加了增强专用信道( E-DCH: Enhanced-Dedicated Channel )。 HSUPA在物理层增加了几个物理信道:上行物理信道增加了 E-DCH专用物理 控制信道( E-DPCCH: E-DCH Dedicated Physical Control Channel )和 E-DCH 专用物理数据信道 ( E-DPDCH: E-DCH Dedicated Physical Data Channel ); 下 行物理信道增加了 E-DCH绝对授权信道 ( E-AGCH: E-DCH Absolute Grant Channel ), E-DCH相对授权信道(E-RGCH: E-DCH Relative Grant Channel ) 和 E-DCH混合重传确认指示信道 ( E-HICH: E-DCH HARQ Acknowledgement Indicator Channel )。 上行 E-DPDCH用于承载 HSUPA用户上行的传输数据; 上行 E-DPCCH承载解调数据信道 E-DPDCH的伴随信令。下行 E-AGCH为公 共信道, 由用户服务 E-DCH无线连接所在的小区指示 UE最大可用传输速率 或者功率; 下行 E-RGCH为专用信道, 最快可按 2ms时间快速调整 UE的上 行传输速率; 下行 E-HICH为专用信道, 反馈用户接收进程数据是否正确, 并 上报确认 ( ACK: Acknowledgement ) 或负确认 ( NACK: Negative Acknowledgement )信息。
HSUPA支持软切换, UE可以同时与多个小区建立 E-DCH信道, 每个小 区下行都可以有 E-RGCH和 E-HICH信道, 但是每个 UE只接收一个小区上 E-AGCH信道的绝对授权, 相应的该小区称为 HSUPA服务小区。 如果 UE上下行业务承载在 E-DCH和 HS-DSCH信道上, 那么 UE的 HSDPA服务小区和 HSUPA服务小区必须相同, 此时称这个小区为高速分组 接入 ( HSPA: High Speed Packet Access )服务小区。
当需要从一个 Node B小区切换到另一个 Node B小区时, UE通常将软切 换加入到当前活动集中, 同时发起请求要求新小区配置为 HSUPA、 HSDPA、 或者 HSPA服务小区。 以新小区配置为 HSPA服务小区为例, 现有网络侧的信 令流程如图 1所示:
步驟 101 , 无线网絡控制器(RNC ) 向目标 Node B发送无线链路建立请 求, '建立 UE在目标 Node B小区中的无线链路;
步骤 102, NC接收目标 Node B的无线链路建立响应;
步驟 103, RNC向目标 Node B发起无线链路重配置准备操作, 通过无线 链路重配置准备信令, 通知目标 Node B, 将新小区重配置为 HSPA服务小区; 步骤 104, RNC接收目标 NODE B的重配置准备响应;
步骤 105, RNC发送无线链路重配置启动信令到目标 NODE B,其中包括 连接顿号 ( CFN: Connection Frame Number );
CFN是 UE、 RNC, NODE B统一的基于专用无线帧的定时, 指定在某一 CFN的时刻按照重配置准备信令的参数, UE、 RNC, 目标 NODE B同时切换 到以目标 Node B小区作为服务小区。 CFN的取值范围为 0到 255的自然数; 步骤 106, RNC通过无线链路重配置准备信令, 将原 NODE B的小区重 配置为非 HSPA服务小区的参数发送到原 Node B;
步骤 107, RNC接收原 NODE B的重配置准备响应;
步 108, RNC发送无线链路重配置启动信令到原 NODE B, 其中包括 CFN;
在所述 CFN停止原 NODE B小区作为服务小区;
步骤 109, RNC向 UE发送无线链路激活集更新信令, 以便通知 UE在同 一 CFN启动新的小区作为服务小区;
步骤 110, UE完成无线链路激活集更新后, 向 RNC上^ =艮无线链路激活集 更新完成。 可见, 现有的服务小区更新流程在目标 NODE B中的操作通常分为两步 走, 首先在新小区建立无线链路, 然后通过重配置信令更新服务小区。 这样 RNC与目标 Node B之间至少需要交互 5条信令才能更新服务小区 ,浪费传输 资源, 流程效率低。 交互的信令多使得更新服务小区所需的时间较长, 可能导 致业务吞吐率下降, 甚至可能造成软切换失败。
发明内容
本发明实施例的主要目的在于提供一种服务小区更新的控制方法和装置, 以简化 UE需要从一个 Node B小区切换到另一个 Node B小区时的服务小区更 新流程, 减少系统信令交互和传输资源的浪费。
为实现上述目的,本发明中服务小区更新的控制方法实施例通过如下步骤 实现:
接收无线网絡控制器的无线链路建立请求,其中包括更新服务小区的更新 时间; 根据无线链路建立请求在所述更新时间将本基站小区切换为服务小区。
本发明实施例还提供了一种服务小区更新的控制装置, 包括:
无线网络控制器无线链路建立单元,用来与基站进行无线链路建立的信令 交互, 包括在无线链路建立请求中将更新服务小区的更新时间通知基站; 无线网络控制器服务小区更新单元,用来按照所述更新时间将服务小区更 新为所述基站小区。
本发明实施例还提供了另一种服务小区更新的控制装置, 包括: 基站无线链路建立单元,用来与无线网络控制器进行无线链路建立的信令 交互, 包括接收无线链路建立请求中的更新服务小区的更新时间;
基站服务小区更新单元,用来按照所述更新服务小区的更新时间将本基站 小区切换为服务小区。
本发明实施例在无线链路建立请求信令中将服务小区更新连接帧号通知 基站, 不必进行目标 Node B的无线链路重配置信令交互过程, 简化了在服务 小区更新时目标 NODE B的信令流程, 在功能上完全满足现有技术的要求, 提高了服务小区更新的处理速度, 降低了整个系统的信令处理时延,避免了对 业务吞吐率和软切换的影响; 同时系统交互的信令减少, 节约了传输资源。 附图说明
图 1为现有技术中通信系统切换服务小区的更新流程;
图 2为本发明服务小区更新的控制方法实施例的流程;
图 3为本发明服务小区更新的控制系统实施例的结构示意图。
具体实施方式
为使本发明实施方式的目的、技术方案和优点更加清楚, 下面将结合附图 对本发明实施方式作进一步地佯细描述。
本发明实施方式可以通过在无线链路建立请求信令的信元结构中增加一 个服务小区更新 CFN信元来实现, 这个信元可以为可选信元, 其中包括服务 小区更新的 CFN, 用来指示基站在该 CFN对应的时间将其基站小区更新为服 务小区。 当 UE切换到一个新的 Node B小区时, 或者说切换到一个目标基站 小区时, 如果需要将服务小区更新为该基站小区, 则该服务小区更新 CFN信 元在基站小区中建立无线链路的无线链路建立请求信令中有效, 并且 RNC通 过服务小区更新 CFN信元来设定 Node B侧启动服务小区更新的时间。
当服务小区更新 CFN信元为可选信元时, RNC可以通过在无线链路建立 请求中包含或不包含该服务小区更新 CFN信元来通知基站是否要进行服务小 区更新。 换言之, 当收到的无线链路建立请求中包括服务小区更新 CFN信元 时, 则 Node B除根据该无线链路建立请求建立无线链路外, 还在该服务小区 更新 CFN信元指示的时间将本基站小区切换为服务小区; 当收到的无线链路 建立请求中不包括服务小区更新 CFN信元时, 则与现有技术中相同, Node B 只根据该无线链路建立请求建立无线链路, 而不将本基站小区切换为服务小 区。
当无线链路建立请求中包含既服务小区更新 CF 信元 , 又包含对应的服 务无线链路信息时, 该服务小区更新 CFN信元在无线链路建立请求信令中有 效; 当无线链路建立请求中包含了服务小区更新 CFN信元, 但没有包含对应 的服务无线链路信息时, 该服务小区更新 CFN信元无效, NodeB返回失败响 应。
参见图 2本发明实施方式中 Node B间切换服务小区更新流程图: 步骤 201 , RNC向目标 Node B发送无线链路建立请求信令, 建立 UE在 目标 Node B小区的无线链路,其中该请求信令中包含服务小区更新 CFN信元, 该 CFN信元可以通知服务小区更新的时间;
步骤 202, RNC接收目标 Node B的无线链路建立响应;
如果服务小区更新 CFN信元在无线链路建立请求信令中有效, 通常目标
Node B会在紧接下来与该 CFN对应的时刻, 激活为新的服务无线链路所分配 的资源。
如果服务小区更新 CFN信元在所述无线链路建立请求信令中有效, 但是 在无线链路建立请求信令中没有对应的服务无线链路信息, 则目标 Node B会 向无线网络控制器返回无线链路建立失败消息。
步骤 203 , RNC通过无线链路重配置准备信令, 将原 NODE B的小区重 配置为非 HSPA服务小区的参数发送到原 Node B;
步骤 204, RNC接收原 NODE B的重配置准备信令响应;
步驟 205, RNC发送无线链路重配置启动信令到原 NODE B, 其中包括 CFN;
在所述 CFN所对应的时间停止原 NODE B小区作为服务小区。
步骤 206, RNC向 UE发送无线链路激活集更新, 以便通知 UE在同一 CFN将目标 Node B小区切换为服务小区;
步骤 207, UE完成的无线链路激活集更新后, 向 RNC上报无线链路激活 集更新完成。
本领域普通技术人员可以理解实现上述方法实施例中的全部或部分步驟 是可以通过程序来指令相关的硬件来完成,所述的程序可以存储于一计算机可 读取存储介质中,该程序在执行时可以包括上述方法实施例中的全部或部分步 驟。 所述的存储介质可以是只读存储器、 随机存储器、 磁碟、 光盘等。
本发明中服务小区更新的控制系统实施例可以具有图 3所示的结构。
无线网络控制器 310包括无线网络控制器无线链路建立单元 311和无线网 络控制器服务小区更新单元 312, 基站 320包括基站无线链路建立单元 321、 基站服务小区更新单元 322, 还可以包括 CFN信元单元 323。 无线网络控制器无线链路建立单元 311与基站无线链路建立单元 321之间 进行无线链路建立的信令交互。 无线链路建立的信令包括无线网络控制器 310 发送的无线链路建立请求和基站 320发送的无线链路请求响应,无线网絡控制 器无线链路建立单元 311 在发送的无线链路建立请求中将更新服务小区的更 新时间通知基站 320 , 无线网络控制器服务小区更新单元 312在该更新服务小 区的更新时间将服务小区更新为基站 320的小区。
当接收的无线链路建立请求中包括更新服务小区的更新时间时,基站无线 链路建立单元 321将无线链路请求中与服务小区切换相关的参数,包括更新服 务小区的更新时间输出至基站服务小区更新单元 322。基站服务小区更新单元 322在该更新服务小区的更新时间, 按照无线链路请求中相关参数将本基站小 区切换为服务小区。
更新服务小区的更新时间通常采用服务小区更新 CFN来表征,该 CFN所 对应的时间即为更新服务小区的更新时间。无线网络控制器 310可以在无线链 路建立请求中增加一个服务小区更新 CFN信元,携带该服务小区更新的 CFN, 服务小区更新 CFN信元可以是无线链路建立请求中的可选信元。
无线网络控制器 310可以在需要基站 320更新服务小区时在无线链路建立 请求中包括服务小区更新 CFN信元, 同时在该请求中包括对应的服务无线链 路信息; 在不需要基站 320更新服务小区时, 则不在无线链路建立请求中携带 服务小区更新 CFN信元。
基站 320的基站无线链路建立单元 321可以包括链路信息模块。基站无线 链路建立单元 321在收到包括服务小区更新 CFN信元的无线链路建立请求后, 由链路信息模块检测该服务小区更新 CFN信元的有效状态, 即检测该无线链 路建立请求中是否包括与服务小区更新对应的服务无线链路信息 ,如果包括则 将无线链路请求中与服务小区切换相关的参数,包括更新服务小区的更新时间 输出至基站服务小区更新单元 322; 如果不包括则由基站无线链路建立单元 321向无线网络控制器 310返回失败响应。
因为现有技术中重配置准备信令的所有信元都包含在无线链路建立请求 信令的信元结构中, 而现有技术中服务小区更新时, 重配置启动信令中实际有 效的参数仅为服务小区更新 CFN信元。 所以本发明的实施例通过在无线链路 建立请求信令中增加一个服务小区更新 CF 信元, 简化了目标 NODE B的信 令流程, 功能上完全满足现有技术的要求, 并且提高了服务小区更新的处理速 度, 降低了整个系统的信令处理时延, 避免了对业务吞吐率和软切换的影响; 同时系统交互的信令减少, 节约了传输资源。
上述服务小区更新可以只是 HSDPA服务小区更新, 或者只是 HSUPA服 务小区更新,也可以是 HSDPA服务小区和 HSUPA服务小区同时更新,即 HSPA 月艮务小区更新。 通过无线链路建立请求信令中的 HSDPA和 HSUPA的相关信 元的存在与否来确定是哪种类型的小区更新。
虽然参照特定的示例性的实施例已经描述了本发明,但此描述仅仅想举例 说明本发明的创造性构思, 并且不应被认为限制本发明的范围。可以使用各种 各样的替换方案、修改和等效, 而不脱离由所附的权利要求限定的本发明的精 神。 ,

Claims

权 利 要 求
1. 一种服务小区更新的控制方法, 其特征在于, 包括:
接收无线网络控制器的无线链路建立请求,其中包括更新服务小区的更新 时间;
根据无线链路建立请求在所述更新时间将本基站小区切换为服务小区。
2. 如权利要求 1所述服务小区更新的控制方法, 其特征在于: 所述更新 时间为服务小区更新 CF 对应的时间;
所述无线链路建立请求中包含服务小区更新连接帧号信元,携带所述服务 小区更新的 CFN。
3. 如权利要求 2所述服务小区更新的控制方法, 其特征在于: 所述无线 链路请求中还包括服务小区更新连接帧号信元的有效状态;
所述将本基站小区切换为服务小区具体为:当所述服务小区更新连接帧号 信元有效时, 在该 CFN对应的时间将本基站小区切换为服务小区。
4. 如权利要求 3所述服务小区更新的控制方法, 其特征在于, 当所述服 务小区更新连接帧号信元有效时,所述方法还包括: 所述基站在紧接下来的该 连接帧号对应的时间, 激活为新的服务无线链路所分配的资源。
5. 如权利要求 3所述服务小区更新的控制方法, 其特征在于, 当所述服 务小区更新连接帧号信元无效时, 所述方法还包括: 在所述基站小区建立无线 链路, 并不将所述基站小区切换为服务小区。
6. 如权利要求 2所述服务小区更新的控制方法, 其特征在于, 所述方法 进一步包括步骤:
将无线链路建立响应发送给所述无线网络控制器;
所述无线网络控制器向用户装置发送无线链路激活集更新,以便通知用户 装置在所述服务小区更新连接帧号所对应的时间将所述基站小区切换为服务 小区。
7. 如权利要求 1-6中任意一项所述的服务小区更新的控制方法, 其特征 在于,所述方法还包括: 当所述无线链路建立请求中不包括与服务小区更新对 应的服务无线链路信息时, 向无线网络控制器返回无线链路建立失败响应。
8. 如权利要求 1所述的服务小区更新的控制方法, 其特征在于: 所述服 务小区为高速下行分組接入服务小区、或者高速上行分组接入服务小区、或者 高速分组接入服务小区。
9. 一种服务小区更新的控制装置, 其特征在于, 包括:
无线网络控制器无线链路建立单元,用来与基站进行无线链路建立的信令 交互, 包括在无线链路建立请求中将更新服务小区的更新时间通知基站; 无线网络控制器服务小区更新单元,用来按照所述更新时间将服务小区更 新为所述基站小区。
10. 如权利要求 9所述服务小区更新的控制装置, 其特征在于: 所述更新 服务小区的更新时间为服务小区更新的 CFN所对应的时间;
所述无线链路建立请求包括服务小区更新 CFN信元, 携带所述服务小区 更新的 CFN。
11. 如权利要求 9所述服务小区更新的控制装置, 其特征在于, 所述装置 为无线网络控制器。
12. —种服务小区更新的控制装置, 其特征在于, 包括:
基站无线链路建立单元,用来与无线网络控制器进行无线链路建立的信令 交互, 包括接收无线链路建立请求中的更新服务小区的更新时间;
基站服务小区更新单元 ,用来按照所述更新服务小区的更新时间将本基站 小区切换为服务小区。
13. 如权利要求 12所述的服务小区更新的控制装置, 其特征在于, 所述 更新服务小区的更新时间为服务小区更新的 CFN所对应的时间;
所述无线链路建立请求包括服务小区更新 CFN信元, 携带所述服务小区 更新的 CFN。
14. 如权利要求 13所述的服务小区更新的控制装置, 其特征在于, 所述 基站无线链路建立单元还包括链路信息模块,用来检测所述无线链路建立请求 中是否包括与服务小区更新对应的服务无线链路信息,在包括时由基站无线链 路建立单元将所述更新服务小区的更新时间输出至基站服务小区更新单元;否 则由基站无线链路建立单元返回失败响应。
15. 如权利要求 12所述的服务小区更新的控制装置, 其特征在于, 所述 装置为基站。
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JP2010501152A (ja) 2010-01-14
EP2053870A1 (en) 2009-04-29
CN101018354A (zh) 2007-08-15
CN101018354B (zh) 2010-10-27
JP4960455B2 (ja) 2012-06-27
WO2008022523A8 (en) 2009-04-02
EP2053870A4 (en) 2012-01-11

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