WO2015149558A1 - 无线网络控制器、无线通信系统和信道重配置方法 - Google Patents

无线网络控制器、无线通信系统和信道重配置方法 Download PDF

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Publication number
WO2015149558A1
WO2015149558A1 PCT/CN2014/095348 CN2014095348W WO2015149558A1 WO 2015149558 A1 WO2015149558 A1 WO 2015149558A1 CN 2014095348 W CN2014095348 W CN 2014095348W WO 2015149558 A1 WO2015149558 A1 WO 2015149558A1
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Prior art keywords
rnc
channel configuration
new
activated
radio link
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PCT/CN2014/095348
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English (en)
French (fr)
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苏永峰
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华为技术有限公司
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0072—Transmission or use of information for re-establishing the radio link of resource information of target access point

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a radio network controller, a radio communication system, and a channel reconfiguration method.
  • the configuration parameters of the UE change (for example, radio bearer setup, inter-frequency hard handover, intra-frequency hard handover, code tree re-engineering, serving cell change), the channel needs to be performed.
  • a synchronous reconfiguration scheme is generally adopted, that is, an activation time is preset, and each entity simultaneously switches to a new channel configuration at the activation time point.
  • the activation time in order to minimize the handover delay, the activation time should be as short as possible, but the activation time configuration is too short, and the UE is used to receive the handover command -
  • the channel reconfiguration command Physical channel reconfiguration
  • the technical problem to be solved by the embodiments of the present invention is to provide a radio network controller, a radio communication system, and a channel reconfiguration method, which are used to overcome the above problems existing in the prior art and improve the handover success rate in the channel reconfiguration process. Reduce the switching delay.
  • a first aspect of the present invention provides a radio network controller, where the radio network controller includes:
  • a first sending unit configured to send a channel reconfiguration command to the user equipment UE, so that the UE root Activating a new channel configuration according to the channel reconfiguration command;
  • a determining unit configured to determine whether the UE has activated a new channel configuration
  • an activation unit configured to activate a new channel configuration immediately when the determination result of the determining unit is YES.
  • the channel reconfiguration command includes a new uplink scrambling code
  • the radio network controller further includes:
  • a second receiving unit configured to receive radio link recovery indication information sent by the base station, where the radio link recovery indication information is after the base station receives an uplink data packet from the UE that includes the new uplink scrambling code Sent
  • the determining unit is specifically configured to determine, according to the radio link recovery indication information, that the UE has activated a new channel configuration.
  • the radio network controller further includes:
  • a second sending unit configured to send a radio link setup request message to the base station, so that the base station establishes a new radio link.
  • the radio network controller further includes:
  • a third receiving unit configured to receive a dedicated channel DCH data packet sent by the UE
  • a first check unit configured to perform a cyclic redundancy code CRC check on the DCH data packet
  • the determining unit is specifically configured to: when the CRC check passes, determine that the UE has activated a new channel configuration.
  • the radio network controller further includes:
  • a fourth receiving unit configured to receive an enhanced dedicated channel EDCH data packet sent by the UE
  • a second check unit configured to check whether the EDCH data packet is legal
  • the determining unit is specifically configured to: when the EDCH data packet is legal, determine that the UE has activated a new channel configuration.
  • the radio network controller further includes:
  • a third sending unit configured to send a radio link deletion request message to the base station after the new channel configuration is activated, so that the base station deletes the old radio link;
  • a fifth receiving unit configured to receive a radio link deletion response message sent by the base station after deleting the old radio link.
  • a second aspect of the present invention provides a wireless communication system, including a radio network controller RNC and a user equipment UE, wherein
  • the RNC is configured to send a channel reconfiguration command to the UE
  • the UE is configured to immediately activate a new channel configuration according to the channel reconfiguration command
  • the RNC is further configured to determine whether the UE has activated a new channel configuration, and after determining that the UE has activated a new channel configuration, the RNC immediately activates a new channel configuration.
  • the wireless communication system further includes a base station, where the channel reconfiguration command includes a new uplink scrambling code;
  • the base station is configured to receive an uplink data packet sent by the UE, where the uplink data packet includes the new uplink interference code;
  • the base station is further configured to send radio link recovery indication information to the RNC;
  • the RNC is further configured to determine, according to the foregoing radio link recovery indication information, that the UE has activated a new channel configuration.
  • the wireless communication system further includes a base station, where the RNC is further configured to send a radio link setup request message to the base station;
  • the base station can be configured to establish a new wireless link according to the radio link setup request message.
  • the RNC is further configured to receive a DCH data packet sent by the UE, and perform cyclic redundancy code on the DCH data packet.
  • the CRC check when the CRC check passes, determines that the UE has activated a new channel configuration.
  • the RNC is configured to receive an EDCH data packet sent by the UE, and verify whether the EDCH data packet is legal. When the EDCH data packet is legal, it is determined that the UE has activated a new channel configuration.
  • the RNC is further configured to send to the base station after activating a new channel configuration.
  • Wireless link deletion request message
  • the base station is further configured to delete the old wireless link according to the wireless link deletion request message, and send a wireless link deletion response message to the RNC.
  • a third aspect of the present invention provides a channel reconfiguration method, where the method includes:
  • the radio network controller RNC sends a channel reconfiguration command to the user equipment UE, so that the UE immediately activates a new channel configuration according to the channel reconfiguration instruction;
  • the RNC determines whether the UE has activated a new channel configuration, and if so, the RNC immediately activates a new channel configuration.
  • the channel reconfiguration command carries a new uplink scrambling code
  • the method further includes: the RNC receiving radio link recovery indication information sent by the base station; the radio link recovery indication information is received by the base station Transmitting to an uplink data packet from the UE that includes the new uplink scrambling code;
  • the determining, by the RNC, whether the UE has activated a new channel configuration specifically includes:
  • the RNC determines, according to the radio link recovery indication information, that the UE has activated a new channel configuration.
  • the method before the RNC sends a channel reconfiguration command to the user equipment UE, the method further includes:
  • the RNC sends a radio link setup request message to the base station to enable the base station to establish a new radio link.
  • the method further includes: receiving, by the RNC a dedicated channel DCH data packet sent by the UE;
  • Determining whether the UE has activated the new channel configuration specifically includes: the RNC performing a cyclic redundancy code CRC check on the DCH data packet, and when the CRC check passes, determining the location The UE has activated a new channel configuration.
  • the method further includes: receiving, by the RNC An enhanced dedicated channel EDCH data packet sent by the UE;
  • Whether the RNC determines whether the UE has activated the new channel configuration specifically includes: determining, by the RNC, whether the EDCH data packet is legal, and when the EDCH data packet is legal, determining that the UE has activated a new channel configuration. .
  • the method further includes:
  • the RNC receives a radio link deletion response message sent by the base station after deleting the old radio link.
  • the UE after receiving the channel reconfiguration command, the UE immediately activates a new channel configuration, and after determining that the UE has activated the new channel configuration, the RNC also Immediately activate the new channel configuration; thus, when the network conditions are poor, as long as the UE does not receive the complete channel reconfiguration command and has activated the new channel configuration, the RNC will always transmit the transmission channel reconfiguration command on the original channel, thereby Ensure the handover success rate; when the network conditions are good, the UE quickly receives the channel reconfiguration command and activates the new channel configuration.
  • the RNC can also activate the new channel configuration as soon as possible after the UE activates the new channel configuration. Thereby shortening the switching delay.
  • FIG. 1 is a first schematic diagram of a structure of a radio network controller according to an embodiment of the present invention
  • FIG. 2 is a second schematic diagram of a structure of a radio network controller according to an embodiment of the present invention.
  • FIG. 3 is a third schematic diagram of a structure of a radio network controller according to an embodiment of the present invention.
  • FIG. 4 is a fourth schematic diagram of a structure of a radio network controller according to an embodiment of the present invention.
  • FIG. 5 is a fifth schematic diagram of a structure of a radio network controller according to an embodiment of the present invention.
  • FIG. 6 is a sixth schematic diagram of a structure of a radio network controller according to an embodiment of the present invention.
  • FIG. 7 is a first schematic diagram showing the structure and signaling flow of a wireless communication system according to an embodiment of the present invention.
  • FIG. 8 is a second schematic diagram showing the structure and signaling flow of a wireless communication system according to an embodiment of the present invention.
  • FIG. 9 is a third schematic diagram showing the structure and signaling flow of a wireless communication system according to an embodiment of the present invention.
  • FIG. 10 is a first schematic diagram of a flow of a channel reconfiguration method according to an embodiment of the present disclosure.
  • FIG. 11 is a second schematic diagram of a flow of a channel reconfiguration method according to an embodiment of the present disclosure.
  • FIG. 12 is a third schematic diagram of a flow of a channel reconfiguration method according to an embodiment of the present disclosure.
  • FIG. 13 is a fourth schematic diagram of a flow of a channel reconfiguration method according to an embodiment of the present invention.
  • the existing wireless communication system may include an RNC, a base station, and a UE.
  • the radio link is established between the base station and the UE.
  • the RNC communicates with the UE through the base station and the UE.
  • the RNC needs to control the system side and the UE.
  • Channel reconfiguration to switch to the new channel configuration for communication.
  • the RNC Radio Network Controller
  • the RNC sends a channel reconfiguration command to the UE, where the channel reconfiguration command carries an activation time (generally 500ms-1000ms).
  • the RNC and the UE simultaneously activate the new channel configuration.
  • the UE may not have time to receive the complete channel reconfiguration command during the activation time, but the RNC has activated the new channel configuration, and the UE cannot continue to receive the channel reconfiguration command, resulting in the UE being unable to Activating a new channel configuration according to the channel reconfiguration command, eventually causing the UE to drop the call, and the handover success rate is low; when the network condition is good, the UE receives the channel reconfiguration command in a short time (for example, 200 ms). However, the UE still needs to wait for the activation time to expire before the new channel configuration is activated, resulting in a longer handover delay.
  • a short time for example, 200 ms
  • the embodiment of the invention provides a new channel reconfiguration scheme, which is used to solve the problems existing in the prior art, improve the handover success rate, and shorten the handover delay.
  • FIG. 1 is a schematic structural diagram of an RNC according to an embodiment of the present invention.
  • the RNC 100 can include:
  • the first sending unit 101 is configured to send a channel reconfiguration command to the UE, so that the UE immediately activates a new channel configuration according to the channel reconfiguration command; the channel reconfiguration command may not carry activation time information;
  • the determining unit 102 is configured to determine whether the UE has activated a new channel configuration.
  • the activation unit 103 is configured to activate a new channel configuration immediately when the determination result of the foregoing determining unit is YES.
  • the channel reconfiguration command may not carry the activation time information, and the UE activates the new channel configuration immediately after receiving the channel reconfiguration command, and the RNC determines that the UE has activated the new channel. After the channel configuration, the new channel configuration is also activated immediately; thus, when the network conditions are poor, the RNC will always transmit the transmission channel on the original channel as long as the UE does not receive the complete channel reconfiguration command and has activated the new channel configuration.
  • the reconfiguration command ensures the handover success rate; when the network conditions are good, the UE quickly receives the channel reconfiguration command and activates the new channel configuration, and the RNC can also activate the new one as soon as possible after the UE activates the new channel configuration.
  • the channel configuration shortens the switching delay.
  • the foregoing channel reconfiguration command may carry the RNC to allocate for the UE.
  • the new uplink scrambling code as shown in Figure 2, may also include:
  • the first receiving unit 104 is configured to receive radio link restoration indication information (Radio Link Restore Indication) sent by the base station, where the radio link recovery indication information is that the base station receives the uplink that includes the new uplink scrambling code from the UE. Sent after the packet;
  • radio link restoration indication information Radio Link Restore Indication
  • the determining unit 102 may be specifically configured to determine, according to the foregoing radio link recovery indication information, that the UE has activated a new channel configuration.
  • the uplink data packet sent by the UE may include an uplink synchronization frame, and the uplink synchronization frame is a message of the control plane; of course, the uplink data packet may also include an uplink user plane message (ie, a regular data packet).
  • the uplink data packet may also include an uplink user plane message (ie, a regular data packet).
  • the foregoing embodiments may be applicable to a scenario in which channel reconfiguration is required, such as radio bearer setup, code tree reconfiguration, or serving cell change.
  • the RNC 100 may include:
  • the second sending unit 105 is configured to send a radio link setup request message to the base station, so that the base station establishes a new radio link.
  • the base station After the base station establishes a new radio link, there are two radio links between the base station and the UE: the old radio link (bearing the old channel configuration) and the new radio link (bearing the new channel configuration), the UE After the new channel configuration is activated, new channel data packets can be sent over the new wireless link.
  • the old radio link bearing the old channel configuration
  • the new radio link bearing the new channel configuration
  • the RNC 100 may further include:
  • the second receiving unit 106 is configured to receive a DCH (Dedicated Channel) data packet sent by the UE;
  • DCH Dedicated Channel
  • the first check unit 107 is configured to perform a CRC (Cyclic Redundancy Check) check on the DCH data packet.
  • CRC Cyclic Redundancy Check
  • the determining unit 102 may be specifically configured to determine that the UE has activated a new channel configuration when the CRC check passes.
  • the RNC 100 may further include:
  • the third receiving unit 108 is configured to receive an EDCH (Enhanced Dedicated Channel) data packet sent by the UE;
  • EDCH Enhanced Dedicated Channel
  • the second check unit 109 is configured to check whether the EDCH data packet is legal; that is, verify the EDCH The validity of the data packet;
  • the determining unit 102 is configured to determine that the UE has activated a new channel configuration when the EDCH data packet is legal.
  • the RNC 100 may further include:
  • a third sending unit 110 configured to send a radio link deletion request message to the base station to request the base station to delete the old radio link after activating a new channel configuration
  • the fourth receiving unit 111 is configured to receive a radio link deletion response message sent by the base station after deleting the old radio link.
  • the RNC may instruct the base station to delete the old radio link.
  • the above embodiments can be applied to situations in which channel reconfiguration is required, such as inter-frequency hard handover or intra-frequency hard handover.
  • a wireless communication system may include an RNC 100, a base station 200, and a UE 300.
  • the base station 200 and the UE 300 establish an old wireless link; when the configuration parameters of the UE change, the system Channel reconfiguration is required:
  • the RNC 100 can be configured to send a channel reconfiguration command to the UE 300.
  • the UE 300 can be configured to immediately activate a new channel configuration according to a channel reconfiguration command
  • the RNC 100 is also used to determine whether the UE 300 has activated a new channel configuration. If it is determined that the UE has activated the new channel configuration, the RNC 100 can also activate the new channel configuration immediately.
  • the UE 300 may also send a channel reconfiguration complete message to the RNC 100 after activating the new channel configuration.
  • the channel reconfiguration command may include a new uplink scrambling code allocated by the RNC 100 for the UE 300, and the UE 300 may use the uplink data packet after activating the new channel configuration.
  • the base station 200 is further configured to receive an uplink data packet sent by the UE 300; the uplink data packet may include the foregoing new uplink scrambling code;
  • the base station 200 can be based on the new one.
  • the uplink scrambling code determines that the UE 300 has activated the new channel configuration, and the base station 200 can send the radio link recovery indication information to the RNC 100 to notify the RNC 100;
  • the RNC 100 may determine, according to the radio link recovery indication information, that the UE has activated a new channel configuration.
  • the uplink data packet sent by the UE may include an uplink synchronization frame, and the uplink synchronization frame is a message of the control plane; of course, the uplink data packet may also include an uplink user plane message (ie, a regular data packet).
  • the uplink data packet may also include an uplink user plane message (ie, a regular data packet).
  • the RNC 100 is further configured to send a radio link setup request message to the base station 200;
  • the base station 200 can be configured to establish a new wireless link according to the above radio link setup request message.
  • the base station 200 may send a radio link setup response message to the RNC 100 after establishing a new radio link.
  • the base station 200 and the UE 300 After establishing a new wireless link, there are two wireless links between the base station 200 and the UE 300: the old wireless link and the new wireless link, and the UE 300 can pass the new wireless chain after activating the new channel configuration.
  • the channel sends a new channel packet.
  • the new channel data packet sent by the UE 300 is a DCH data packet:
  • the RNC 100 can be configured to receive the DCH data packet sent by the UE 300, perform a cyclic redundancy code CRC check on the DCH data packet, and when the CRC check passes, determine that the UE 300 has activated the new channel configuration, the RNC 100 can also activate the new channel immediately. Channel configuration.
  • the new channel data packet sent by the UE 300 is an EDCH data packet:
  • the RNC can be used to receive the EDCH data packet sent by the UE 300, check whether the EDCH data packet is legal, and when the EDCH data packet is legal, it is determined that the UE 300 has activated the new channel configuration, and the RNC 100 can also activate the new channel configuration.
  • the RNC 100 may be further configured to send a radio link deletion request message to the base station 200 after activating the new channel configuration
  • the base station 200 is configured to delete the old wireless link according to the foregoing radio link deletion request, and send a radio link deletion response message to the RNC 100.
  • FIG. 10 is a flowchart of a channel reconfiguration method according to an embodiment of the present invention. intention. As shown in FIG. 10, the method may include:
  • the RNC sends a channel reconfiguration command to the user equipment UE, so that the UE immediately activates a new channel configuration according to the channel reconfiguration command; the channel reconfiguration command may not carry activation time information;
  • the RNC determines whether the UE has activated a new channel configuration, and if so, executes 1003, otherwise executes 1001;
  • the foregoing RNC immediately activates a new channel configuration.
  • the channel reconfiguration command may not carry the activation time information, and the UE activates the new channel configuration immediately after receiving the channel reconfiguration command, and the RNC determines that the UE has activated the new channel. After the channel configuration, the new channel configuration is also activated immediately; thus, when the network conditions are poor, the RNC will always transmit the transmission channel on the original channel as long as the UE does not receive the complete channel reconfiguration command and has activated the new channel configuration.
  • the reconfiguration command ensures the handover success rate; when the network conditions are good, the UE quickly receives the channel reconfiguration command and activates the new channel configuration, and the RNC can also activate the new one as soon as possible after the UE activates the new channel configuration.
  • the channel configuration shortens the switching delay.
  • the foregoing channel reconfiguration command may carry a new uplink scrambling code allocated by the RNC to the UE.
  • the foregoing method may further include:
  • the first RNC receives the radio link recovery indication information sent by the base station, and the radio link recovery indication information is sent by the base station after receiving the uplink data packet including the new uplink scrambling code from the UE.
  • the base station may determine that the UE has activated the new channel configuration according to the new uplink scrambling code carried by the uplink data packet sent by the UE.
  • the uplink data packet sent by the UE may include an uplink synchronization frame, and the uplink synchronization frame is a message of the control plane; of course, the uplink data packet may also include an uplink user plane message (ie, a regular data packet).
  • the foregoing 1002 may include: determining, by the RNC, that the UE has activated a new channel configuration according to the foregoing radio link recovery indication information.
  • the RNC waits for the radio link recovery indication information sent by the base station, and once the radio link recovery indication information is received, that is, the UE has activated the new channel configuration, the RNC The new channel configuration can also be activated immediately.
  • the embodiment shown in FIG. 11 can be applied to a situation in which channel reconfiguration is required, such as radio bearer setup, code tree reconfiguration, or serving cell change.
  • the method may further include:
  • the RNC sends a radio link setup request message to the base station, so that the base station establishes a new radio link.
  • the RNC may further receive a radio link setup response message sent by the foregoing base station.
  • the method may further include:
  • the RNC receives a new channel data packet sent by the UE.
  • the foregoing 1002 may include: the RNC performs a cyclic redundancy code CRC check on the DCH data packet, and when the CRC check passes, determining that the UE has completed channel reconfiguration. Otherwise, it is judged that the above UE has not activated the new channel configuration.
  • the foregoing 1002 may include: determining, by the RNC, whether the EDCH data packet is legal. When the EDCH data packet is legal, determining that the UE has activated a new channel configuration, otherwise determining The above UE has not activated the new channel configuration yet.
  • the method may further include:
  • the RNC sends a radio link deletion request message to the base station, so that the base station deletes the old radio link.
  • the RNC receives a radio link deletion response message sent by the base station after deleting the old radio link.
  • FIG. 12-13 can be applied to a scenario where channel reconfiguration is required, such as inter-frequency hard handover or intra-frequency hard handover.
  • channel reconfiguration scheme can be applied to WCDMA (Wideband Code Division Multiple Access) and TDS-CDMA (Time Division-Synchronous Code Division Multiple Access). Communication system such as multiple access).
  • WCDMA Wideband Code Division Multiple Access
  • TDS-CDMA Time Division-Synchronous Code Division Multiple Access
  • Communication system such as multiple access).
  • the program may be stored in a computer readable storage medium, and the storage medium may include: Flash disk, Read-Only Memory (ROM), Random Access Memory (RAM), disk or optical disk.
  • the radio network controller, the radio communication system, and the channel reconfiguration method provided by the embodiments of the present invention are described in detail.
  • the principles and implementation manners of the present invention are described in the specific examples.
  • the description of the above embodiments is only The method for understanding the present invention and its core idea; at the same time, for those of ordinary skill in the art, according to the idea of the present invention, there will be changes in specific embodiments and application scopes. The description should not be construed as limiting the invention.

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Abstract

本发明实施例涉及通信技术领域，公开了一种无线网络控制器、无线通信系统和信道重配置方法。其中，该无线网络控制器包括：第一发送单元，用于向用户设备UE发送信道重配置指令，以使所述UE根据所述信道重配置指令立即激活新的信道配置；判断单元，用于判断所述UE是否已经激活新的信道配置；激活单元，用于当所述判断单元的判断结果为是时，立即激活新的信道配置。实施本发明实施例，可以提高信道重配置过程中的切换成功率，降低切换时延。

Description

无线网络控制器、无线通信系统和信道重配置方法
本申请要求于2014年3月31日提交中国专利局、申请号为201410127436.7、发明名称为“无线网络控制器、无线通信系统和信道重配置方法”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及通信技术领域，具体涉及一种无线网络控制器、无线通信系统和信道重配置方法。
背景技术
在无线通信系统中，当UE(User Equipment，用户设备)的配置参数发生变化(例如无线承载建立、异频硬切换、同频硬切换、码树重整、服务小区变更)时，需要进行信道重配置，系统侧(RNC、基站)和UE需要都切换到新的信道配置。
现有技术中，通常采用的是同步重配置的方案，即预先设置一个激活时间，各实体在该激活时间点上同时切换到新的信道配置。
以异频硬切换流程为例，现有技术中需要设置一个合理的激活时间：为了尽量缩短切换时延，激活时间应当越短越好，但激活时间配置过短，UE用来收切换命令-信道重配置指令(Physical channel reconfiguration)的时间就太少，可能会收不到切换命令导致系统侧与UE的状态不一致并最终掉话；为了保证切换成功率，激活时间应当较长，但激活时间配置过长，切换完成的时间就太长，时延不占优势；
综上所述，现有技术中的同步重配置方案难以解决切换时延和切换成功率的矛盾问题。
发明内容
本发明实施例所要解决的技术问题是提供一种无线网络控制器、无线通信系统和信道重配置方法，用于克服现有技术中存在的上述问题，提高信道重配置过程中的切换成功率，降低切换时延。
本发明第一方面提供一种无线网络控制器，所述无线网络控制器包括：
第一发送单元，用于向用户设备UE发送信道重配置指令，以使所述UE根 据所述信道重配置指令立即激活新的信道配置；
判断单元，用于判断所述UE是否已经激活新的信道配置；
激活单元，用于当所述判断单元的判断结果为是时，立即激活新的信道配置。
在第一种可能的实施方式中，所述信道重配置指令包括新的上行扰码；
所述无线网络控制器还包括：
第二接收单元，用于接收基站发送的无线链路恢复指示信息；所述无线链路恢复指示信息是所述基站接收到来自所述UE的包括所述新的上行扰码的上行数据包之后发送的；
所述判断单元具体用于根据所述无线链路恢复指示信息判断出所述UE已经激活新的信道配置。
在第二种可能的实施方式中，所述无线网络控制器还包括：
第二发送单元，用于向基站发送无线链路建立请求消息，以使所述基站建立新的无线链路。
结合第一方面的第二种可能的实施方式，在第三种可能的实施方式中，所述无线网络控制器还包括：
第三接收单元，用于接收所述UE发送的专用信道DCH数据包；
第一校验单元，用于对所述DCH数据包进行循环冗余码CRC校验；
所述判断单元具体用于当所述CRC校验通过时，判断出所述UE已经激活新的信道配置。
结合第一方面的第二种可能的实施方式，在第四种可能的实施方式中，所述无线网络控制器还包括：
第四接收单元，用于接收所述UE发送的增强专用信道EDCH数据包；
第二校验单元，用于校验所述EDCH数据包是否合法；
所述判断单元，具体用于当所述EDCH数据包合法时，判断出所述UE已经激活新的信道配置。
结合第一方面的第二种或第三种或第四种可能的实施方式，在第五种可能的实施方式中，所述无线网络控制器还包括：
第三发送单元，用于在激活新的信道配置之后，向所述基站发送无线链路删除请求消息，以使所述基站删除旧的无线链路；
第五接收单元，用于接收所述基站在删除所述旧的无线链路之后发送的无线链路删除响应消息。
本发明第二方面提供一种无线通信系统，包括无线网络控制器RNC和用户设备UE，其特征在于，
所述RNC用于向所述UE发送信道重配置指令；
所述UE用于根据所述信道重配置指令，立即激活新的信道配置；
所述RNC还用于判断所述UE是否已经激活新的信道配置，在判断出所述UE已经激活新的信道配置之后，所述RNC立即激活新的信道配置。
在第一种可能的实施方式中，所述无线通信系统还包括基站，所述信道重配置指令中包括新的上行扰码；
所述基站用于接收所述UE发送的上行数据包；所述上行数据包包括所述新的上行扰码；
所述基站还用于向所述RNC发送无线链路恢复指示信息；
所述RNC还用于根据上述无线链路恢复指示信息判断出所述UE已经激活新的信道配置。
在第二种可能的实施方式中，所述无线通信系统还包括基站，所述RNC还用于向所述基站发送无线链路建立请求消息；
所述基站可用于根据所述无线链路建立请求消息建立新的无线链路。
结合第二方面的第二种可能的实施方式，在第三种可能的实施方式中，所述RNC还用于接收所述UE发送的DCH数据包，对所述DCH数据包进行循环冗余码CRC校验，当所述CRC校验通过时，判断出所述UE已经激活新的信道配置。
结合第二方面的第二种可能的实施方式，在第四种可能的实施方式中，所述RNC用于接收所述UE发送的EDCH数据包，校验所述EDCH数据包是否合法，当所述EDCH数据包合法时，判断出所述UE已经激活新的信道配置。
结合第二方面的第二种或第三种或第四种可能的实施方式，在第五种可能的实施方式中，所述RNC还用于在激活新的信道配置之后，向所述基站发送无线链路删除请求消息；
所述基站还用于根据所述无线链路删除请求消息删除旧的无线链路，并向所述RNC发送无线链路删除响应消息。
本发明第三方面提供一种信道重配置方法，所述方法包括：
无线网络控制器RNC向用户设备UE发送信道重配置指令，以使所述UE根据所述信道重配置指令立即激活新的信道配置；
所述RNC判断所述UE是否已经激活新的信道配置，如果是，所述RNC立即激活新的信道配置。
在第一种可能的实施方式中，所述信道重配置指令中携带新的上行扰码；
在所述RNC判断所述UE是否已经激活新的信道配置之前，所述方法还包括：所述RNC接收基站发送的无线链路恢复指示信息；所述无线链路恢复指示信息是所述基站接收到来自所述UE的包括所述新的上行扰码的上行数据包之后发送的；
所述RNC判断所述UE是否已经激活新的信道配置具体包括：
所述RNC根据所述无线链路恢复指示信息判断出所述UE已经激活新的信道配置。
在第二种可能的实施方式中，在所述RNC向用户设备UE发送信道重配置指令之前，所述方法还包括：
所述RNC向基站发送无线链路建立请求消息，以使所述基站建立新的无线链路。
结合第三方面的第二种可能的实施方式，在第三种可能的实施方式中，在所述RNC判断所述UE是否已经激活新的信道配置之前，所述方法还包括：所述RNC接收所述UE发送的专用信道DCH数据包；
所述RNC判断所述UE是否已经激活新的信道配置具体包括：所述RNC对所述DCH数据包进行循环冗余码CRC校验，当所述CRC校验通过时，判断出所 述UE已经激活新的信道配置。
结合第三方面的第二种可能的实施方式，在第四种可能的实施方式中，在所述RNC判断所述UE是否已经激活新的信道配置之前，所述方法还包括：所述RNC接收所述UE发送的增强专用信道EDCH数据包；
所述RNC判断所述UE是否已经激活新的信道配置具体包括：所述RNC校验所述EDCH数据包是否合法，当所述EDCH数据包合法时，判断出所述UE已经激活新的信道配置。
结合第三方面的第二种或第三种或第四种可能的实施方式，在第五种可能的实施方式中，所述方法还包括：
所述RNC向所述基站发送无线链路删除请求消息，以使所述基站删除旧的无线链路；
所述RNC接收所述基站在删除所述旧的无线链路之后发送的无线链路删除响应消息。
从上述内容可以看出，与现有技术不同，本发明实施例中，UE在接收到信道重配置指令后，立即激活新的信道配置，RNC在判断出UE已经激活新的信道配置之后，也立即激活新的信道配置；这样在网络条件较差时，只要UE没有接收到完整的信道重配置指令并已经激活新的信道配置，RNC将一直在原有的信道上传输发送信道重配置指令，从而确保切换成功率；在网络条件较好时，UE很快接收到信道重配置指令并激活新的信道配置，RNC也可在UE激活新的信道配置之后，尽可能快的激活新的信道配置，从而缩短了切换时延。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本发明实施例提供的一种无线网络控制器的结构第一示意图；
图2是本发明实施例提供的一种无线网络控制器的结构第二示意图；
图3是本发明实施例提供的一种无线网络控制器的结构第三示意图；
图4是本发明实施例提供的一种无线网络控制器的结构第四示意图；
图5是本发明实施例提供的一种无线网络控制器的结构第五示意图；
图6是本发明实施例提供的一种无线网络控制器的结构第六示意图；
图7是本发明实施例提供的一种无线通信系统的结构和信令流第一示意图；
图8是本发明实施例提供的一种无线通信系统的结构和信令流第二示意图；
图9是本发明实施例提供的一种无线通信系统的结构和信令流第三示意图；
图10是本发明实施例提供的一种信道重配置方法的流程第一示意图；
图11是本发明实施例提供的一种信道重配置方法的流程第二示意图；
图12是本发明实施例提供的一种信道重配置方法的流程第三示意图；
图13是本发明实施例提供的一种信道重配置方法的流程第四示意图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
本发明的说明书和权利要求书及上述附图中的术语“第一”、“第二”、“第三”“第四”等(如果存在)是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便这里描述的本发明的实施例例如能够以除了在这里图示或描述的那些以外的顺序实施。此外，术语“包括”和“具有”以及他们的任何变形，意图在于覆盖不排他的包含，例如，包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元，而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。
现有的无线通信系统可以包括RNC、基站和UE，基站和UE之间建立有无线链路，RNC通过基站和UE进行通信，当UE的配置参数发生变化时，RNC需要控制系统侧和UE进行信道重配置，以切换到新的信道配置上进行通信。
现有技术中，当需要进行信道重配置时，RNC(Radio Network Controller，无线网络控制器)向UE发送信道重配置指令，该信道重配置指令中携带有激活时间(一般为500ms-1000ms)，等待激活时间到时之后，RNC和UE同时激活新的信道配置。当网络条件较差时，在激活时间内，UE可能并没有来得及接收完整的信道重配置指令，但RNC已经激活了新的信道配置，UE也就不能够继续接收信道重配置指令，导致UE无法根据信道重配置指令激活新的信道配置，最终导致UE掉话，其切换成功率较低；当网络条件较好时，UE在很短的时间内(例如200ms)即接收到了信道重配置指令，但UE仍然需要等待激活时间到时才能激活新的信道配置，导致切换时延较长。
本发明实施例提供一种新的信道重配置方案，用来解决现有技术存在的问题，提高切换成功率，缩短切换时延。
请参考图1，图1是本发明实施例提供的一种RNC的结构示意图。如图1所示，该RNC100可包括：
第一发送单元101，用于向UE发送信道重配置指令，以使上述UE根据上述信道重配置指令立即激活新的信道配置；上述信道重配置指令中可不携带激活时间信息；
判断单元102，用于判断上述UE是否已经激活新的信道配置；
激活单元103，用于当上述判断单元的判断结果为是时，立即激活新的信道配置。
与现有技术不同，本发明实施例中，上述信道重配置指令中可不携带激活时间信息，UE在接收到信道重配置指令后，立即激活新的信道配置，RNC在判断出UE已经激活新的信道配置之后，也立即激活新的信道配置；这样在网络条件较差时，只要UE没有接收到完整的信道重配置指令并已经激活新的信道配置，RNC将一直在原有的信道上传输发送信道重配置指令，确保切换成功率；在网络条件较好时，UE很快接收到信道重配置指令并激活新的信道配置，RNC也可在UE激活新的信道配置之后，尽可能快的激活新的信道配置，缩短了切换时延。
在一种可能的实施方式中，上述信道重配置指令可携带RNC为UE分配的 新的上行扰码，如图2所示，RNC还可包括：
第一接收单元104，用于接收基站发送的无线链路恢复指示信息(Radio Link Restore Indication)；上述无线链路恢复指示信息是上述基站接收到来自上述UE的包括上述新的上行扰码的上行数据包之后发送的；
判断单元102可具体用于根据上述无线链路恢复指示信息判断出上述UE已经激活新的信道配置。
优选地，上述UE发送的上行数据包可以包括上行同步帧，上行同步帧是控制面的报文；当然上行数据包也可以包括上行用户面的报文(即常规的数据包)。
上述实施方式可以适用于无线承载建立、码树重整或服务小区变更等需要进行信道重配置的情形。
在另一种可能的实施方式中，如图3所示，RNC100可包括：
第二发送单元105，用于向上述基站发送无线链路建立请求消息，以使上述基站建立新的无线链路。
在基站建立新的无线链路之后，基站和UE之间同时存在两条无线链路：旧的无线链路(承载旧的信道配置)和新的无线链路(承载新的信道配置)，UE在激活新的信道配置后，可通过新的无线链路发送新的信道数据包。
举例来说，如图4所示，RNC100还可包括：
第二接收单元106，用于接收上述UE发送的DCH(Dedicated Channel，专用信道)数据包；
第一校验单元107，用于对上述DCH数据包进行CRC(Cyclic Redundancy Check，循环冗余码)校验；
判断单元102可具体用于当上述CRC校验通过时，判断上述UE已激活新的信道配置。
举例来说，如图5所示，RNC100还可包括：
第三接收单元108，用于接收上述UE发送的EDCH(增强专用信道，Enhanced Dedicated Channel)数据包；
第二校验单元109，用于校验上述EDCH数据包是否合法；即是校验EDCH 数据包的有效性；
判断单元102，具体用于当上述EDCH数据包合法时，判断出上述UE已经激活新的信道配置。
进一步地，如图6所示，RNC100还可包括：
第三发送单元110，用于在激活新的信道配置之后，向上述基站发送无线链路删除请求消息以请求上述基站删除上述旧的无线链路；
第四接收单元111，用于接收上述基站在删除上述旧的无线链路之后发送的无线链路删除响应消息。
由于基站和UE之间建立有新旧两条无线链路，在RNC和UE都切换到新的信道配置上之后，RNC可以指示基站删除旧的无线链路。
上述实施方式可以适用于异频硬切换或同频硬切换等需要进行信道重配置的情形。
如图7所示的是本发明实施例提供的一种无线通信系统，可包括RNC100、基站200和UE300，基站200和UE300建立有旧的无线链路；当UE的配置参数发生变化，该系统需要进行信道重配置：
RNC100可用于向UE300发送信道重配置指令；
UE300可用于根据信道重配置指令立即激活新的信道配置；
RNC100还用于判断UE300是否已经激活了新的信道配置，如果判断出UE已经激活了新的信道配置，RNC100也可立即激活新的信道配置。
可选地，UE300还可在激活新的信道配置之后向RNC100发送信道重配置完成消息。
在一种可能的实施方式中，如图8所示，上述信道重配置指令中可包括RNC100为UE300分配的新的上行扰码，UE300可在激活新的信道配置之后，在上行数据包中使用新的上行扰码；
基站200还可用于接收UE300发送的上行数据包；该上行数据包可包括上述新的上行扰码；
基站200与UE300在新的无线链路上同步成功并在新的无线链路上接收到来自UE300的包括新的上行扰码的上行数据包之后，基站200可以根据该新的 上行扰码判断出UE300已经激活了新的信道配置，基站200可向RNC100发送无线链路恢复指示信息以通知RNC100；
RNC100在接收到上述无线链路恢复指示信息之后，可根据上述无线链路恢复指示信息判断出上述UE已经激活新的信道配置。
优选地，上述UE发送的上行数据包可以包括上行同步帧，上行同步帧是控制面的报文；当然上行数据包也可以包括上行用户面的报文(即常规的数据包)。
在另一种可能的实施方式中，如图9所示，RNC100还可用于向基站200发送无线链路建立请求消息；
基站200可用于根据上述无线链路建立请求消息建立新的无线链路。
可选地，基站200在建立新的无线链路之后，可以向RNC100发送无线链路建立响应消息。
在建立新的无线链路之后，基站200和UE300之间同时存在两条无线链路：旧的无线链路和新的无线链路，UE300在激活新的信道配置后，可通过新的无线链路发送新的信道数据包。
举例来说，如果UE300发送的新的信道数据包为DCH数据包：
RNC100可用于接收UE300发送的DCH数据包，对上述DCH数据包进行循环冗余码CRC校验，当上述CRC校验通过时，判断UE300已经激活新的信道配置，则RNC100也可立即激活新的信道配置。
举例来说，如果UE300发送的新的信道数据包为EDCH数据包：
RNC可用于接收UE300发送的EDCH数据包，校验上述EDCH数据包是否合法，当上述EDCH数据包合法时，判断出UE300已经激活新的信道配置，则RNC100也可立即激活新的信道配置。
进一步地，RNC100还可用于在激活新的信道配置之后，向基站200发送无线链路删除请求消息；
基站200可用于根据上述无线链路删除请求删除上述旧的无线链路，并向RNC100发送无线链路删除响应消息。
请参考图10，图10是本发明实施例提供的一种信道重配置方法的流程示 意图。如图10所示，该方法可以包括：
1001、RNC向用户设备UE发送信道重配置指令，以使上述UE根据上述信道重配置指令立即激活新的信道配置；上述信道重配置指令中可不携带激活时间信息；
1002、上述RNC判断上述UE是否已经激活新的信道配置，如果是，执行1003，否则执行1001；
1003、上述RNC立即激活新的信道配置。
与现有技术不同，本发明实施例中，上述信道重配置指令中可不携带激活时间信息，UE在接收到信道重配置指令后，立即激活新的信道配置，RNC在判断出UE已经激活新的信道配置之后，也立即激活新的信道配置；这样在网络条件较差时，只要UE没有接收到完整的信道重配置指令并已经激活新的信道配置，RNC将一直在原有的信道上传输发送信道重配置指令，确保切换成功率；在网络条件较好时，UE很快接收到信道重配置指令并激活新的信道配置，RNC也可在UE激活新的信道配置之后，尽可能快的激活新的信道配置，缩短了切换时延。
在一种可能的实施方式中，上述信道重配置指令中可携带RNC为UE分配的新的上行扰码，如图11所示，在上述1002之前上述方法还可包括：
1101、上述RNC接收上述基站发送的无线链路恢复指示信息；上述无线链路恢复指示信息是上述基站接收到来自上述UE的包括上述新的上行扰码的上行数据包之后发送的。基站可以根据UE发送的上行数据包携带的新的上行扰码判断出UE已经激活了新的信道配置。
优选地，上述UE发送的上行数据包可以包括上行同步帧，上行同步帧是控制面的报文；当然上行数据包也可以包括上行用户面的报文(即常规的数据包)。相应的，上述1002可以包括：上述RNC根据上述无线链路恢复指示信息判断出上述UE已经激活新的信道配置。
即是在如图11所示的实施方式中，RNC一直等待基站发送的无线链路恢复指示信息，一旦接收到上述无线链路恢复指示信息，即说明UE已经激活了新的信道配置，则RNC也可立即激活新的信道配置。
如图11所示的实施方式可以适用于无线承载建立、码树重整或服务小区变更等需要进行信道重配置的情形。
在另一种可能的实施方式中，如图12所示，在上述1001之前，该方法还可包括：
1201、上述RNC向上述基站发送无线链路建立请求消息，以使上述基站建立新的无线链路；
可选地，RNC还可接收上述基站发送的无线链路建立响应消息。
相应的，在上述1002之前，该方法还可包括：
1202、上述RNC接收上述UE发送的新的信道数据包。
如果上述新的信道数据包为DCH数据包，则上述1002可包括：上述RNC对上述DCH数据包进行循环冗余码CRC校验，当上述CRC校验通过时，判断上述UE已完成信道重配置，否则判断上述UE还没有激活新的信道配置。
如果上述新的信道数据包为EDCH数据包，则上述1002可包括：上述RNC校验上述EDCH数据包是否合法，当上述EDCH数据包合法时，判断出上述UE已经激活新的信道配置，否则判断上述UE还没有激活新的信道配置。
进一步地，如图13所示，在RNC激活新的信道配置之后，该方法还可包括：
1301、上述RNC向上述基站发送无线链路删除请求消息，以使上述基站删除上述旧的无线链路；
1302、上述RNC接收上述基站在删除上述旧的无线链路之后发送的无线链路删除响应消息。
如图12-13的实施方式可以适用于异频硬切换或同频硬切换等需要进行信道重配置的情形。
需要说明的是，本发明实施例提供的信道重配置方案可以适用于WCDMA(Wideband Code Division Multiple Access，宽带码分多址)、TDS-CDMA(Time Division-Synchronous Code Division Multiple Access，时分-同步码分多址)等通信系统。
需要说明的是，以上各实施例均属于同一发明构思，各实施例的描述各有 侧重，在个别实施例中描述未详尽之处，可参考其他实施例中的描述。
本领域普通技术人员可以理解上述实施例的各种方法中的全部或部分步骤是可以通过程序来指令相关的硬件来完成，该程序可以存储于一计算机可读存储介质中，存储介质可以包括：闪存盘、只读存储器(Read-Only Memory，ROM)、随机存取器(Random Access Memory，RAM)、磁盘或光盘等。
以上对本发明实施例所提供的无线网络控制器、无线通信系统和信道重配置方法进行了详细介绍，本文中应用了具体个例对本发明的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本发明的方法及其核心思想；同时，对于本领域的一般技术人员，依据本发明的思想，在具体实施方式及应用范围上均会有改变之处，综上所述，本说明书内容不应理解为对本发明的限制。

Claims (13)

  1. 一种无线网络控制器，其特征在于，所述无线网络控制器包括：
    第一发送单元，用于向用户设备UE发送信道重配置指令，以使所述UE根据所述信道重配置指令立即激活新的信道配置；
    判断单元，用于判断所述UE是否已经激活新的信道配置；
    激活单元，用于当所述判断单元的判断结果为是时，立即激活新的信道配置。
  2. 根据权利要求1所述的无线网络控制器，其特征在于，所述信道重配置指令包括新的上行扰码；
    所述无线网络控制器还包括：
    第二接收单元，用于接收基站发送的无线链路恢复指示信息；所述无线链路恢复指示信息是所述基站接收到来自所述UE的包括所述新的上行扰码的上行数据包之后发送的；
    所述判断单元具体用于根据所述无线链路恢复指示信息判断出所述UE已经激活新的信道配置。
  3. 根据权利要求1所述的无线网络控制器，其特征在于，所述无线网络控制器还包括：
    第二发送单元，用于向基站发送无线链路建立请求消息，以使所述基站建立新的无线链路。
  4. 根据权利要求3所述的无线网络控制器，其特征在于，所述无线网络控制器还包括：
    第三接收单元，用于接收所述UE发送的专用信道DCH数据包；
    第一校验单元，用于对所述DCH数据包进行循环冗余码CRC校验；
    所述判断单元具体用于当所述CRC校验通过时，判断出所述UE已经激活新的信道配置。
  5. 根据权利要求3所述的无线网络控制器，其特征在于，所述无线网络控制器还包括：
    第四接收单元，用于接收所述UE发送的增强专用信道EDCH数据包；
    第二校验单元，用于校验所述EDCH数据包是否合法；
    所述判断单元，具体用于当所述EDCH数据包合法时，判断出所述UE已经激活新的信道配置。
  6. 根据权利要求3-5任一项所述的无线网络控制器，其特征在于，所述无线网络控制器还包括：
    第三发送单元，用于在激活新的信道配置之后，向所述基站发送无线链路删除请求消息，以使所述基站删除旧的无线链路；
    第五接收单元，用于接收所述基站在删除所述旧的无线链路之后发送的无线链路删除响应消息。
  7. 一种无线通信系统，包括无线网络控制器RNC和用户设备UE，其特征在于，
    所述RNC用于向所述UE发送信道重配置指令；
    所述UE用于根据所述信道重配置指令，立即激活新的信道配置；
    所述RNC还用于判断所述UE是否已经激活新的信道配置，在判断出所述UE已经激活新的信道配置之后，所述RNC立即激活新的信道配置。
  8. 一种信道重配置方法，其特征在于，所述方法包括：
    无线网络控制器RNC向用户设备UE发送信道重配置指令，以使所述UE根据所述信道重配置指令立即激活新的信道配置；
    所述RNC判断所述UE是否已经激活新的信道配置，如果是，所述RNC立即激活新的信道配置。
  9. 根据权利要求8所述的方法，其特征在于，所述信道重配置指令中携带新的上行扰码；
    在所述RNC判断所述UE是否已经激活新的信道配置之前，所述方法还包括：所述RNC接收基站发送的无线链路恢复指示信息；所述无线链路恢复指示信息是所述基站接收到来自所述UE的包括所述新的上行扰码的上行数据包之后发送的；
    所述RNC判断所述UE是否已经激活新的信道配置具体包括：
    所述RNC根据所述无线链路恢复指示信息判断出所述UE已经激活新的 信道配置。
  10. 根据权利要求8所述的方法，其特征在于，在所述RNC向用户设备UE发送信道重配置指令之前，所述方法还包括：
    所述RNC向基站发送无线链路建立请求消息，以使所述基站建立新的无线链路。
  11. 根据权利要求10所述的方法，其特征在于，
    在所述RNC判断所述UE是否已经激活新的信道配置之前，所述方法还包括：所述RNC接收所述UE发送的专用信道DCH数据包；
    所述RNC判断所述UE是否已经激活新的信道配置具体包括：所述RNC对所述DCH数据包进行循环冗余码CRC校验，当所述CRC校验通过时，判断出所述UE已经激活新的信道配置。
  12. 根据权利要求10所述的方法，其特征在于，
    在所述RNC判断所述UE是否已经激活新的信道配置之前，所述方法还包括：所述RNC接收所述UE发送的增强专用信道EDCH数据包；
    所述RNC判断所述UE是否已经激活新的信道配置具体包括：所述RNC校验所述EDCH数据包是否合法，当所述EDCH数据包合法时，判断出所述UE已经激活新的信道配置。
  13. 根据权利要求10-12任一项所述的方法，其特征在于，所述方法还包括：
    所述RNC向所述基站发送无线链路删除请求消息，以使所述基站删除旧的无线链路；
    所述RNC接收所述基站在删除所述旧的无线链路之后发送的无线链路删除响应消息。
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