WO2015123939A1 - 一种信息交互方法、系统以及基站 - Google Patents

一种信息交互方法、系统以及基站 Download PDF

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Publication number
WO2015123939A1
WO2015123939A1 PCT/CN2014/079306 CN2014079306W WO2015123939A1 WO 2015123939 A1 WO2015123939 A1 WO 2015123939A1 CN 2014079306 W CN2014079306 W CN 2014079306W WO 2015123939 A1 WO2015123939 A1 WO 2015123939A1
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WO
WIPO (PCT)
Prior art keywords
user plane
base station
data
plane data
processing
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PCT/CN2014/079306
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English (en)
French (fr)
Inventor
和峰
Original Assignee
中兴通讯股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Priority to US15/119,530 priority Critical patent/US10257749B2/en
Publication of WO2015123939A1 publication Critical patent/WO2015123939A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/02Traffic management, e.g. flow control or congestion control
    • H04W28/08Load balancing or load distribution
    • H04W28/086Load balancing or load distribution among access entities
    • H04W28/0861Load balancing or load distribution among access entities between base stations
    • H04W28/0864Load balancing or load distribution among access entities between base stations of different hierarchy levels, e.g. Master Evolved Node B [MeNB] or Secondary Evolved node B [SeNB]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/02Traffic management, e.g. flow control or congestion control
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/02Traffic management, e.g. flow control or congestion control
    • H04W28/0205Traffic management, e.g. flow control or congestion control at the air interface
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/16Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/02Traffic management, e.g. flow control or congestion control
    • H04W28/0231Traffic management, e.g. flow control or congestion control based on communication conditions
    • H04W28/0236Traffic management, e.g. flow control or congestion control based on communication conditions radio quality, e.g. interference, losses or delay
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W92/00Interfaces specially adapted for wireless communication networks
    • H04W92/16Interfaces between hierarchically similar devices
    • H04W92/20Interfaces between hierarchically similar devices between access points

Definitions

  • the present invention relates to the field of communications, and in particular, to an information interaction method, system, and base station. Background technique
  • the mobile packet service has been greatly developed, and the data throughput capability of a single terminal is constantly increasing.
  • LTE Long Term Evolution
  • the downlink maximum rate of 100 Mbps data transmission can be supported in the 20 M bandwidth.
  • the data transmission rate will be further increased, and even reach 1 Gbps.
  • the existing user plane data protocol stack of LTE as shown in FIG. 1 , the downlink data received from the core network via the GTP-U (GPRS Tunnelling Protocol for the User Plane) layer is passed after unpacking.
  • PDCP Packet Data Convergence Protocol
  • RLC Radio Link Control Protocol
  • MAC Medium Access Control
  • PHY Port Physical Layer
  • the processing is sent to the UE (User Equipment); the transmission of the uplink data is exactly the opposite of the downlink.
  • the data transmission link between the network and the UE is a one-to-one dedicated link, so the signal quality of the link and the size of the resources used determine the data transmission performance between the two.
  • LPN Low Power Node
  • scale in the process of deploying a new generation communication network (such as LTE).
  • Small cell Small Cell
  • micro base station Pico eNB
  • dual connectivity Dual Connectivity
  • the terminal can simultaneously connect with two or more (the dual connectivity in the present invention is only a general term, and does not limit the number of connections).
  • the network node remains connected, as shown in FIG.
  • MeNB The master eNB, the master base station, or the macro base station node, and the other nodes are called SeNBs (Secondary eNBs) or micro-base stations or low-power nodes, and the Xn interface is used for connection.
  • SeNBs Secondary eNBs
  • the network side can adjust the amount of data transmitted by the terminal on the MeNB and the SeNB node in real time, and if the UE moves or other reasons cause the SeNB cell to change, A cell can also remain connected, and this change does not result in excessive signaling impact.
  • the service data of the bearer 2 on the MeNB is divided into two parts at the PDCP layer, and respectively delivered to the RLC layer of the local lower layer and the RLC layer of the SeNB, and finally sent to the terminal.
  • the sender has information exchange between different protocol layers in the data transfer process.
  • information exchange between the PDCP layer and the RLC layer is performed.
  • PDCP Data Aggregation Control Protocol Layer
  • RLC Radio Link Control Layer
  • the two will interact.
  • the PDCP layer in the bearer of the master base station side notifies the RLC layer of the corresponding bearer on the controlled base station side to the user plane data from time to time. The packet is discarded.
  • the RLC layer in the bearer on the controlled base station sends a feedback message to the PDCP layer after successfully transmitting the data packet sent by the PDCP in a bearer on the bearer side of the master station. Notify the PDCP layer of the transmission of the packet.
  • the interaction between the PDCP layer and the RLC layer can be completely implemented by the internal implementation of the device.
  • the PDCP layer and the receiving layer on the main control base station side are The RLC layer on the control base station side is not in the same base station, so the interaction between the two base stations involves the interaction between the two base station nodes.
  • the entity where the PDCP layer on the control base station side is located (hereinafter referred to as the PDCP layer entity) and the controlled base station side
  • the entity in which the RLC layer is located (hereinafter referred to as the RLC layer entity) can only interact through the Xn interface. Based on the current definition of the attributes of the Xn interface, the bandwidth of the Xn interface is limited, and since the direct transmission of information between the existing PDCP layer and the RLC layer is untimed, it is easy to cause an uneven amount of information to be sent each time. For example, the amount of information sent is too large, and the amount of information sent is sometimes small.
  • the embodiments of the present invention mainly provide an information interaction method, a system, and a base station.
  • the embodiment of the invention provides an information interaction method, which is applied to the dual connectivity data offloading technology of the long term evolution system, and includes:
  • the sender distributes the relevant information of the user plane data processing to the corresponding party according to the preset rule.
  • the embodiment of the present invention further provides a base station, which is applied to the dual connectivity data offloading technology of the LTE system, and includes: a sending module and a data processing module, where the data processing module is configured to be a user plane carried by the base station. The data is processed; the sending module is configured to distribute the related information of the user plane data processing by the data processing module to the base station of the opposite end according to a preset rule.
  • An embodiment of the present invention further provides an information interaction system, which is applied to a dual- In the connection data offloading technology, the first base station includes: a first data processing module and a first sending module, where the second base station includes: a second data processing module and a second sending module ;
  • the first data processing module is configured to process user plane data carried by the first base station
  • the first sending module is configured to distribute the related information processed by the first data processing module to the user plane data to the second base station according to a preset rule
  • the second data processing module is configured to process user plane data carried by the second base station
  • the second sending module is configured to distribute the related information processed by the second data processing module to the user plane data to the first base station according to a preset rule.
  • the embodiments of the present invention provide an information interaction method, a system, and a base station, which solve the delay problem and the out-of-order caused by the bandwidth limitation of the communication interface when the main control base station or the controlled base station performs information interaction in the prior art. Lost bag problem.
  • the information interaction method provided by the present invention is applied to the dual connectivity data offloading technology of the long term evolution system, and specifically includes: the sender distributes the related information of the user plane data processing to the corresponding receiver according to a preset rule;
  • the information interaction method of the invention by sending the information in batches, the amount of information sent each time is not too large, thereby avoiding the information that needs to be sent to be queued at the interface, thereby solving the problem of information delay;
  • the amount of information sent each time is not too large, so the packet loss rate is also reduced.
  • the method of the present invention can maximize the adaptation to the high latency and wired bandwidth requirements of the Xn port, achieving efficiency and Balance of performance.
  • the method of the present invention also ensures the flexibility of interaction between the two, reducing the complexity in the specific implementation.
  • FIG. 1 is a schematic diagram of an LTE user plane protocol stack
  • Figure 2 is a schematic diagram of a dual connection scenario
  • Figure 3 is a schematic diagram of a dual-connection data splitting method
  • Figure 4 is a schematic diagram of the interaction between the PDCP and the RLC layer in the existing protocol
  • FIG. 5 is a schematic diagram of an information interaction method according to Embodiment 1 of the present invention.
  • FIG. 6 is a schematic diagram of an information interaction method according to Embodiment 2 of the present invention.
  • FIG. 7 is a schematic diagram of an information interaction method according to Embodiment 3 of the present invention.
  • FIG. 8 is a schematic diagram of an information interaction method according to Embodiment 4 of the present invention.
  • FIG. 9 is a schematic diagram of an information interaction method according to Embodiment 5 of the present invention.
  • FIG. 10 is a schematic diagram of an information interaction method according to Embodiment 6 of the present invention.
  • FIG. 11 is a schematic diagram of an information interaction method according to Embodiment 7 of the present invention.
  • FIG. 12 is a schematic structural diagram of a base station according to Embodiment 8 of the present invention.
  • FIG. 13 is a schematic structural diagram of an information interaction system according to Embodiment 9 of the present invention. detailed description
  • the sender distributes the related information of the user plane data processing to the corresponding receiver according to the preset rule, thereby avoiding that the information to be sent is queued at the interface, thereby solving the information delay.
  • Embodiment 1 is a diagrammatic representation of Embodiment 1:
  • the embodiment provides an information interaction method, and the method is applied to the dual-connection data offloading technology of the long-term evolution system, and the sender distributes the related information of the user plane data processing to the corresponding receiver according to a preset rule. .
  • the sender transmits information 1 to the receiver at time 1, and transmits information 2 to the receiver at time 2, at the moment. 3 Send the message 3 to the recipient.
  • the intervals of time 1, 2, and 3 may be the same or different.
  • the sender can also happen at event 1.
  • the message 1 is sent to the receiver, the message 2 is sent to the receiver when the event 2 occurs, and the message 3 is sent to the receiver when the event 3 occurs.
  • Events 1, 2, and 3 can be the same or different.
  • the preset rules can be pre-configured by the upper layer or pre-configured by the Operation Management Maintenance (OAM) entity.
  • OAM Operation Management Maintenance
  • the information interaction method in this embodiment distributes the related information about the processing of the user plane data to the receiver, and avoids that all the information related to the processing of the user plane data is sent to the receiver through the communication interface at a certain moment. Delay problems and out-of-order packet loss due to bandwidth limitations of the communication interface.
  • the processing of the user plane data in this embodiment may include: discarding the user plane data, sending the user plane data, or performing status statistics processing on the user plane data.
  • the user plane data processing in this embodiment may also be user plane data processing well known to those skilled in the art.
  • the related information of the user plane data processing in this embodiment is information related to the processing of the user plane data carried by the sender, and may specifically include the number information of the data packet in the process of processing the user plane data, or the transmission of the data packet is lost. Packet rate or delay statistics, or other information related to user plane data transmission, such as sending success or failure feedback information.
  • the information related to the processing of the user plane data in the embodiment further includes: the bearer identification information corresponding to the bearer data.
  • the manner in which the related information is distributed to the recipient according to the preset rule may include at least one of the following two ways:
  • the sender sends its related information about the user plane data processing to the corresponding receiver.
  • the trigger is repeated at a specified time interval, that is, the sender periodically transmits related information of user plane data processing.
  • the setting of the cycle can be set according to the bandwidth of the communication interface.
  • information can also be sent at unequal time intervals, for example, the first time interval is 1 second, and the second time interval is 2 seconds. Analogy.
  • the sender periodically sends information to the receiver, and the information can be periodically sent to the receiver to prevent the information from being accumulated, thereby avoiding the delay problem and the packet loss problem caused by the excessive amount of information sent.
  • the sender when the sender's processing of the user plane data reaches a preset condition, the sender sends the related information about the processing of the user plane data to the receiver.
  • This method can be triggered on the condition that the specified data event occurs.
  • the specified data event can include: When certain processing occurs for the specified data, for example: When one or several data packets are discarded, or when When one or several packets are successfully sent, or when the local data cache state changes.
  • This method triggers the sending mechanism by setting the amount of information sent each time and reaching the trigger condition. If the amount of information sent each time is matched with the bandwidth of the communication interface, the timeliness of information transmission can be guaranteed. , and ensure the smoothness of information transmission.
  • the above specified data event may also be a requirement for processing the user plane data, for example, when the data is processed to a certain extent, or when a certain amount of data is processed, or when the data is processed, the preset is obtained. The result is the same.
  • the processing of the user plane data by the sender reaches a preset condition, including: when the processing of sending the user plane data occurs.
  • the condition is satisfied at the same time, the information is sent.
  • the relevant information of the user plane data processing is sent to the receiver when the period arrives.
  • the sender may include: a master control base station, a packet data convergence protocol layer entity in the bearer on the master base station side, a controlled base station, and a radio link control protocol layer entity in the bearer on the controlled base station side;
  • the receiver may include: the controlled base station, the radio link control protocol layer entity in the bearer on the controlled base station side, the master control base station, and the packet data in the bearer on the main control base station side. Convergence protocol layer entity.
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • the PDCP layer entity on the sender MeNB side sends a discarding indication information of the PDCP entity to the user plane data packet to the RLC entity on the SeNB side according to the specific data processing event, where the information includes the data packet discarded by the PDCP.
  • Number information refers to the count value (PDCP COUNT ) of the PDCP data packet, including the super frame number (HFN, Hyper frame number) and the sequence number 1 (SN, sequence number) of the data packet, or only the data is used.
  • the SN number of the package The indication information of the RLC entity on the SeNB side determines whether to stop the transmission of the indicated data packet.
  • the processing of the user plane data in the embodiment reaches the preset condition, including: the processing event of the user plane data is triggered to occur, and the embodiment in which the specific data processing event is triggered is similar in the following.
  • the specific data processing event is triggered, that is, the PDCP entity discards one or several data packets. That is, only when the PDCP entity discards the data packet, the PDCP entity sends the discarding processing information to the RLC entity, otherwise the related information is not sent.
  • the PDCP may also trigger the sending of the foregoing information according to a specific period, where the specific period may be pre-configured by an upper layer or pre-configured by an Operation Management and Maintenance (OAM) entity.
  • OAM Operation Management and Maintenance
  • Embodiment 3 is a diagrammatic representation of Embodiment 3
  • the RLC layer entity on the SeNB side sends the feedback success information of the RLC entity to the PDCP user plane data packet to the PDCP entity on the MeNB side according to the specific period, where the information includes the number information of the PDCP data packet successfully sent by the RLC. .
  • the number information mentioned therein may refer to the count value of the PDCP data packet, or the SN number of the data packet.
  • the PDCP entity on the MeNB side determines whether the corresponding data packet in the cache is clear according to the feedback information.
  • the specific period may be configured by an upper layer protocol of the base station, or Operations Management and Maintenance (OAM) entities are pre-configured.
  • OAM Operations Management and Maintenance
  • This embodiment is to periodically transmit data, that is, the time intervals specified in the above embodiments are equal, and the same is true for the embodiment in which the following conditions are triggered by a specific period.
  • the RLC layer entity on the SeNB side may also trigger the sending of the foregoing information according to a specific data processing event, where the specific event is triggered when the RLC entity successfully sends one or several PDCP layer PDU data packets.
  • the RLC entity sends the above information, otherwise the related information is not sent.
  • the sending of the foregoing information may also be triggered by a combination of a period and an event, that is, a combination of two trigger modes.
  • Embodiment 4 is a diagrammatic representation of Embodiment 4:
  • the RLC entity on the SeNB side transmits the statistics of the transmission of the PDCP user plane data packet by the RLC entity to the PDCP entity on the MeNB side according to a specific period, where the transmission statistics information includes the PDCP data packet that is obtained through statistics. Packet loss rate and delay information. The manner of obtaining the packet loss rate and the delay information is determined by the specific implementation manner, and is not related to the present invention, and is not described herein.
  • the PDCP entity on the MeNB side further calculates the service quality information of the relevant bearer according to the statistical information.
  • the specific period may be configured by the upper layer protocol of the base station, for example, the MeNB indicates the specific period by using signaling, or is pre-configured by the operation management and maintenance entity.
  • the RLC entity may also trigger the sending of the foregoing information according to a specific data processing event, where the specific event refers to sending immediately after obtaining the statistical information, otherwise the related information is not sent.
  • Embodiment 5 is a diagrammatic representation of Embodiment 5:
  • the sender is the base station MeNB where the PDCP layer entity is located, and sends a PDCP of one or more bearers on the MeNB side to the SeNB where the RLC entity is located according to the specific data processing event.
  • the number information mentioned therein refers to the count value of the PDCP data packet, or the SN number of the data packet.
  • Each RLC entity on the SeNB side determines whether to abandon the transmission of the PDCP data packet corresponding to the current bearer according to the discarding indication information of the corresponding bearer in the message.
  • the specific data processing event triggering refers to that one or more carried PDCP entities on the MeNB side discard the one or several data packets.
  • the MeNB may also trigger the sending of the foregoing information according to a specific period, where the specific period may be configured by the upper layer protocol of the base station, or pre-configured by the operation management maintenance entity.
  • the SeNB sends, to the MeNB, the information about the successful sending of the PDCP user plane data packet by the ReNB entity of the one or more bearers on the SeNB side according to the specific period, where the information includes one or more bearer identification information, and each RLC.
  • the number information mentioned therein may refer to the count value of the PDCP data packet, or the SN number of the data packet.
  • the MeNB determines, according to the successfully transmitted PDCP datagram number of each bearer in the feedback information, the processing of each bearer PDCP for each data of the bearer buffer.
  • the specific period may be configured by an upper layer protocol of the base station, or pre-configured by the operation management and maintenance entity.
  • the SeNB may also trigger the sending of the foregoing information according to a specific data processing event, where the specific event refers to when one or more RLC entities of the SeNB successfully send one or several PDCP layer PDU data packets. , will trigger the RLC to send the above information, otherwise it will not send the relevant information.
  • the sending of the foregoing information may also be triggered by a combination of a period and an event, that is, a combination of two trigger modes.
  • Example 7
  • the SeNB sends, to the MeNB, the transmission capability estimation information of the offloaded PDCP data packet of the SeNB to the MeNB according to the specific period and the data processing event triggering rule, where the estimated information represents part or all of the bearers of the local base station estimated by the SeNB.
  • the number of PDCP packets that can be sent by the RLC entity in the specified estimation period wherein the estimation method is determined by the specific implementation manner, and is not related to the present invention, and is not described herein.
  • the specified estimation period may be pre-configured by the OAM or configured by the MeNB for signaling by the SeNB.
  • the MeNB determines, according to the estimation information, the number of PDCP packets that are respectively shunted by the PDCP entity to the SeNB side RLC entity.
  • the information sent by the SeNB may further include one or several bearer identification information.
  • the SeNB may also trigger the sending of the foregoing information according to a specific data processing event or a specific period.
  • this embodiment provides a base station, which is applied to a dual connectivity data offloading technology of a long term evolution system, and includes: a sending module and a data processing module, where the data processing module is configured to be carried by the base station.
  • the user plane data is processed; the sending module is configured to distribute the related information of the user plane data processing by the data processing module to the base station of the opposite end according to a preset rule.
  • the base station in this embodiment can transmit information in batches, and solves the delay problem caused by the bandwidth limitation of the communication interface between the base stations and the problem of disordered packet loss.
  • the sending module is configured to:
  • the processing of the user plane data by the data processing module reaches a preset condition, the information about the processing of the user plane data by the data processing module is sent to the base station of the opposite end.
  • the processing, by the data processing module, the user plane data processing includes: a discarding process on the user plane data, a sending process on the user plane data, or a state statistical processing on the user plane data.
  • the sending module is configured to send, when the data processing module processes the user plane data to a preset condition, the information about the processing of the user plane data by the data processing module to the base station of the opposite end.
  • the processing of the user plane data by the data processing module reaches a preset condition, including: the packet data convergence protocol layer entity pair
  • the user plane data packet is discarded, and the related information about the processing of the user plane data includes: the packet data aggregation protocol layer entity discards the user plane data packet indication information;
  • the processing of the user plane data by the data processing module reaches a preset condition, including: the radio link control protocol layer
  • the entity sends a processing to the user plane data packet of the packet data convergence protocol layer entity, and the related information about the processing of the user plane data includes: a radio link control protocol layer entity carried by the controlled base station side to the packet data convergence protocol layer Sending success feedback information of the entity user plane data packet;
  • the processing of the user plane data by the data processing module reaches a preset condition, including: the radio link control protocol layer The entity sends a statistical process to the packet data convergence protocol layer entity user plane data packet;
  • the related information about the processing of the user plane data includes: the radio link control protocol layer entity carried by the controlled base station side to the packet data convergence protocol layer entity Sending statistics of user plane data packets;
  • the processing of the user plane data by the data processing module reaches a preset condition, including: the data processing module generates a capability for transmitting the data packet of the offloaded packet data convergence protocol layer entity of the master base station.
  • the estimation process includes: the estimation information about the transmission capability of the offloaded packet data convergence protocol layer entity data packet of the master base station.
  • this embodiment provides an information interaction system, which is applied to a dual connectivity data offloading technology of a long term evolution system, including a first base station and a second base station.
  • the first base station includes: a module and a first sending module, where the second base station includes: a second data processing module and a second sending module;
  • the first data processing module is configured to process user plane data carried by the first base station
  • the first sending module is configured to distribute the related information processed by the first data processing module to the user plane data to the second base station according to a preset rule
  • the second data processing module is configured to process user plane data carried by the second base station
  • the second sending module is configured to distribute the related information processed by the second data processing module to the user plane data to the first base station according to a preset rule.
  • the first sending module is configured to:
  • the processing of the user plane data by the first data processing module reaches a preset condition
  • the information related to the processing of the user plane data by the first data processing module is sent to the second base station.
  • the second sending module is configured to:
  • the processing of the user plane data by the second data processing module reaches a preset condition, the information related to the processing of the user plane data by the second data processing module is sent to the first base station.
  • the processing of the user plane data by the first data processing module or the second data processing module includes: discarding user plane data, sending or processing user plane data, or user plane Status statistics processing of data.
  • the system can solve the problem of consistency when interacting with different base stations, and ensure that the interaction between the two parties can effectively understand the interaction information of the peer end.
  • the interaction scheme can maximize the adaptation to the high latency and wired bandwidth requirements of the Xn interface. , to achieve a balance of efficiency and performance. At the same time, it also ensures the flexibility of interaction between the two and reduces the complexity in the specific implementation.

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  • Computer Networks & Wireless Communication (AREA)
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Abstract

本发明公开了一种信息交互方法、系统以及基站,本发明的信息交互方法,应用于长期演进系统的双连接数据分流技术中,具体包括:发送方根据预设规则将其对用户面数据处理的相关信息分批发送给相应的接收方。

Description

一种信息交互方法、 系统以及基站 技术领域
本发明涉及通信领域, 尤其涉及一种信息交互方法、 系统以及基站。 背景技术
随着无线通信技术和标准的不断演进, 移动分组业务得到了巨大的发 展, 单终端的数据吞吐能力不断在提升。 以 LTE ( Long Term Evolution, 长 期演进)系统为例, 在 20M带宽内可以支持下行最大速率 100Mbps的数据 传输, 后续的增强的 LTE网络中, 数据的传输速率将进一步提升, 甚至可 以达到 lGbps。
现有 LTE的用户面数据协议栈,如图 1所示,从核心网经 GTP-U( GPRS Tunnelling Protocol for the User Plane, 用户层面 GPRS隧道协议)层收到的 下行数据, 经解包后通过 PDCP ( Packet Data Convergence Protocol, 分组数 据汇聚协议)层、 RLC ( Radio Link Control, 无线链路控制协议)层、 MAC ( Medium Access Control, 媒体接入控制协议)层和 PHY ( Port Physical Layer, 物理层)处理发送给 UE ( User Equipment, 用户设备); 上行数据 的发送与下行正好相反。目前网络与 UE之间的数据传输链路是一对一的专 用链接, 因此这条链路的信号质量和使用的资源大小决定了两者间的数据 传输性能。如果链路使用的资源受到限制或者信号质量比较差,则 UE的用 户体验就会下降, 这就是现在移动运营商正在面临的巨大挑战, 虽然网络 容量逐年扩增, 但仍赶不上用户终端数量的增加和用户对数据业务量的需 求。
为了满足数据业务量的增长需求, 运营商在部署新一代通信网络(比 如 LTE ) 的过程中, 也在增加 LPN ( Low Power Node, 低功率节点)或称 小小区 (Small Cell )或微基站(Pico eNB ) 来进行热点增强, 为解决业务 在地域上不平均的特点, 目前不少公司和运营商都倾向于双连接 (Dual Connectivity )分流技术, 在双连接分流技术中, 终端可以同时与两个或两 个以上 (本发明中的双连接只是一个泛称, 并不限制连接个数) 网络节点 保持连接, 如图 2所示, 其中主节点称为 MeNB ( Master eNB, 主控基站) 或称宏基站节点, 而其他节点称为 SeNB ( Secondary eNB, 受控基站)或 称微基站或低功率节点, 两者之间使用 Xn接口进行连接。 比如 UE同时与 宏小区和 LPN小区保持连接, 在网络负荷不均衡时, 网络侧可以实时调控 终端在 MeNB和 SeNB节点上的传输数据量, 同时如果 UE移动或其他原 因导致 SeNB小区变更时,另外一个小区还可以保持连接,且这种变更不会 导致过多的信令冲击。
在具体数据传输时, 如何将原先在一条连接上的数据分配到两个连接 上, 目前业界认为可能的分流方式有多种, 而本发明主要解决的问题基于 的分流方式如图 3所示: 以传输下行数据为例, 在发送端, MeNB上的承 载 2的业务数据, 在 PDCP层被分成两部分, 分别递交给本地下层的 RLC 层和 SeNB的 RLC层, 并最终发送给终端。
按照现有协议中的数据传递机制, 发送端在数据传递过程中不同协议 层之间是有信息交互的, 为了保证有效传递, PDCP层和 RLC层两者之间 会进行信息交互。 比如图 4中的数据汇聚控制协议层(PDCP )和无线链路 控制层 (RLC )之间, 为了保证有效传递, 两者会进行交互。 比如对于映 射到 RLC确认模式( AM, acknowledge mode )的承载数据: ( 1 )主控基站 侧承载中的 PDCP层会不定时地告知受控基站侧的相应承载中的 RLC层其 对用户面数据包进行了丟弃处理; (2 )受控基站侧的承载中的 RLC层在成 功发送主控基站侧的某个承载中 PDCP发送过来的数据包后, 会向 PDCP 层发送反馈信息, 用以通知 PDCP层该数据包的发送情况。 当 PDCP层和 RLC层处于同一个基站内时, PDCP层和 RLC层之间的 交互完全可以交由设备内部具体实现即可, 但在双连接场景下, 因主控基 站侧的 PDCP层与受控基站侧的 RLC层不在同一个基站内, 所以两者交互 涉及到了两个基站节点间的交互, 因此主控基站侧的 PDCP层所在的实体 (以下简称 PDCP层实体)与受控基站侧中的 RLC层所在的实体(以下简 称 RLC层实体 )只能通过 Xn接口进行交互。基于目前对 Xn接口属性的定 义, Xn接口的带宽是受限的, 又由于现有的 PDCP层与 RLC层直接的信 息发送都是不定时的, 这样容易导致每次发送的信息量不均衡, 例如有时 发送的信息的量过大, 有时发送的信息的量又很少, 当主控基站或受控基 站发送的信息过多时, 会因为接口的带宽不足导致信息需要进行排队发送 从而导致时延问题, 此外, 因信息量过大, 信息的发送还会存在乱序丟包 的问题。 发明内容
为解决现有存在的技术问题, 本发明实施例主要提供一种信息交互方 法、 系统以及基站。
本发明实施例提供一种信息交互方法, 应用于长期演进系统的双连接 数据分流技术中, 包括:
发送方根据预设规则将其对用户面数据处理的相关信息分批发送给相 应的接) 方。
同样, 本发明实施例还提供了一种基站, 应用于长期演进系统的双连 接数据分流技术中, 包括: 发送模块和数据处理模块, 所述数据处理模块 配置为对所述基站承载的用户面数据进行处理; 所述发送模块配置为根据 预设规则将所述数据处理模块对用户面数据处理的相关信息分批发送给对 端的基站。
本发明实施例还提供了一种信息交互系统, 应用于长期演进系统的双 连接数据分流技术中, 包括第一基站和第二基站; 所述第一基站包括: 第 一数据处理模块和第一发送模块, 所述第二基站包括: 第二数据处理模块 和第二发送模块;
所述第一数据处理模块配置为对所述第一基站承载的用户面数据进行 处理;
所述第一发送模块配置为根据预设规则将所述第一数据处理模块对用 户面数据处理的相关信息分批发送给所述第二基站;
所述第二数据处理模块配置为对所述第二基站承载的用户面数据进行 处理;
所述第二发送模块配置为根据预设规则将所述第二数据处理模块对用 户面数据处理的相关信息分批发送给所述第一基站.
本发明实施例的有益效果是:
本发明实施例提供了一种信息交互方法、 系统以及基站, 解决现有技 术中当主控基站或受控基站在进行信息交互时, 因通信接口带宽的限制而 导致的时延问题和乱序丟包问题。 本发明提供的信息交互方法, 应用于长 期演进系统的双连接数据分流技术中, 具体包括: 发送方根据预设规则将 其对用户面数据处理的相关信息分批发送给相应的接收方; 本发明的信息 交互方法, 通过将信息进行分批发送, 每次发送的信息的量就不会过大, 从而避免了需要发送的信息在接口处排队, 由此解决了信息时延的问题; 因每次发送的信息量不会过大, 所以也会降低丟包率; 本发明的方法与现 有技术相比, 可以最大化的适应 Xn口的高时延和有线带宽的需求, 达到效 率与性能的平衡。 同时, 本发明的方法也保证了两者间交互的灵活性, 降 低具体实现中的复杂性。 附图说明
图 1 为 LTE用户面协议栈示意图; 图 2 为双连接场景示意图;
图 3 为双连接数据分流方式示意图;
图 4 为现有协议中 PDCP与 RLC层交互功能示意图;
图 5为本发明实施例一提供的一种信息交互方法的示意图;
图 6为本发明实施例二提供的一种信息交互方法的示意图;
图 7为本发明实施例三提供的一种信息交互方法的示意图;
图 8为本发明实施例四提供的一种信息交互方法的示意图;
图 9为本发明实施例五提供的一种信息交互方法的示意图;
图 10为本发明实施例六提供的一种信息交互方法的示意图;
图 11为本发明实施例七提供的一种信息交互方法的示意图;
图 12为本发明实施例八提供的一种基站的结构示意图;
图 13为本发明实施例九提供的一种信息交互系统的结构示意图。 具体实施方式
本发明实施例中, 发送方根据预设规则将其对用户面数据处理的相关 信息分批发送给相应的接收方, 从而避免了需要发送的信息在接口处排队, 由此解决了信息时延的问题, 并因每次发送的信息量不会过大, 所以也会 降低丟包率。
下面通过具体实施方式结合附图对本发明作进一步详细说明。
实施例一:
本实施例提供了一种信息交互方法, 该方法应用于长期演进系统的双 连接数据分流技术中, 发送方根据预设规则将其对用户面数据处理的相关 信息分批发送给相应的接收方。 为说明本发明中的分批发送的意思, 下面 以一个例子进行说明,请参考图 5,发送方在时刻 1将信息 1发送给接收方, 在时刻 2将信息 2发送给接收方,在时刻 3将信息 3发送给接收方。时刻 1、 2、 3的间隔可以相同也可以不相同。 类似的, 发送方也可以在事件 1发生 时将信息 1发送给接收方, 在事件 2发生时将信息 2发送给接收方, 在事 件 3发生时将信息 3发送给接收方。 事件 1、 2、 3可以相同也可以不相同。 预设的规则可以是上层预配置的, 或者通过运营管理维护 (OAM ) 实体预 先配置的。
本实施例的信息交互方法通过将发送对用户面数据处理的相关信息分 批发送给接收方, 避免了将所有用户面数据处理的相关信息在某一个时刻 通过通信接口全部发送给对接收方时由于通信接口带宽的限制导致的时延 问题和乱序丟包问题。
优先地, 本实施例中对用户面数据的处理可以包括: 对用户面数据的 丟弃处理, 对用户面数据的发送处理, 或对用户面数据的状态统计处理。 当然应当理解, 本实施例中的用户面数据处理还可以为其他本领域技术人 员所熟知的用户面数据处理。
本实施例中用户面数据处理的相关信息为发送方对其承载的用户面数 据处理的相关信息, 具体的可以包括用户面数据处理过程中的数据包的编 号信息, 或对数据包的发送丟包率或时延统计信息, 或其他与用户面数据 传输相关的信息, 例如发送成功或失败反馈信息等。
优先地, 本实施例中对用户面数据的处理的相关信息还包括: 所述用 户面数据对应承载的承载标识信息。
在本实施例中, 根据预设规则将相关信息分批发送给接收方的方式可 以包括以下两种方式中的至少一种:
第一种, 当指定的时间间隔到达时, 所述发送方将其对用户面数据处 理的相关信息发送给相应的接收方。 例如以指定的时间间隔为周期重复触 发, 即发送方周期性地发送用户面数据处理的相关信息。 在周期的设定方 面可以根据通信接口带宽的需求进行设定。 当然也可以以不相等的时间间 隔来发送信息, 例如第一个时间间隔为 1秒、 第二个时间间隔为 2秒依次 类推。 本实施例方法中发送方周期性地向接收方发送信息, 则可以定期地 将信息发送给接收方, 防止信息堆积的情况, 从而避免发送的信息量过大 导致的时延问题和丟包问题
第二种, 当发送方对用户面数据的处理达到预设条件时, 所述发送方 将所述对用户面数据的处理的相关信息发送给接收方。 这种方式可以以指 定的数据事件发生为条件进行触发, 指定的数据事件可以包括: 当指定的 数据发生某种处理时, 比如: 当某个或若干个数据包数据发生丟弃时, 或 当某个或若干个数据包被成功发送时, 或本地数据緩存状态发生变化时等。 这种方法通过设置每次信息发送的量, 并达到触发条件的情况下触发发送 机制, 如果将每次发送信息的量设置得和通信接口的带宽相匹配, 就可以 既保证信息发送的及时性, 又保证信息发送的通畅性。 上述指定的数据事 件也可以是对用户面数据的处理达到某种要求, 例如当数据处理到一定程 度时、 或者当一定数量的数据被处理完时, 又或者当数据处理完后得到预 设的结果时等等。
优先地, 本实施例中发送方对用户面数据的处理达到预设条件包括: 当发送对用户面数据的处理发生时。 条件同时满足时才会发送信息, 例如当发送方发生对用户面数据处理后, 要等到周期到达时才将该用户面数据处理的相关信息发送给接收方。 这种 混合的发送机制是上述两种发送机制的简单组合, 本领域技术人员可以由 上述两种简单的机制灵活配置, 这里就不详细描述。
在本实施例中, 发送方可以包括: 主控基站、 主控基站侧的承载中的 分组数据汇聚协议层实体、 受控基站、 受控基站侧的承载中的无线链路控 制协议层实体; 相应地接收方可以包括: 受控基站、 受控基站侧的承载中 的无线链路控制协议层实体、 主控基站、 主控基站侧的承载中的分组数据 汇聚协议层实体。
实施例二:
如图 6, 发送方 MeNB侧的 PDCP层实体, 按照特定数据处理事件触 发向 SeNB侧的 RLC实体发送 PDCP实体对用户面数据包的丟弃指示信息, 所述信息中包含 PDCP丟弃的数据包的编号信息。 其中所述的编号信息是 指 PDCP数据包的计数值(PDCP COUNT ), 包括数据包的超帧号 (HFN, Hyper frame number )和序歹1 J号 ( SN, sequence number ), 或者仅仅使用数 据包的 SN号。 SeNB侧的 RLC实体所述指示信息确定是否停止其中指示的 数据包的发送。
其中, 本实施例中对用户面数据的处理达到预设条件包括: 用户面数 据的处理事件被触发即发生, 同理下面以特定数据处理事件触发为条件的 实施例也是类似情况。 所述的特定数据处理事件触发, 是指 PDCP 实体对 一个或若干个数据包发生了丟弃处理。 即只有当 PDCP 实体对数据包发生 丟弃时, PDCP实体才会向 RLC实体发送所述的丟弃处理信息, 否则不发 送相关信息。
可选的,本实施例中, PDCP也可以按照特定周期触发上述信息的发送, 其中的特定周期可以是上层预配置的, 或者通过运营管理维护 (OAM ) 实 体预先配置的。
实施例三:
如图 7, SeNB侧的 RLC层实体, 按照特定周期向 MeNB侧的 PDCP 实体发送 RLC实体对 PDCP用户面数据包的发送成功反馈信息, 所述信息 中包含 RLC成功发送的 PDCP数据包的编号信息。 其中所述的编号信息可 以是指 PDCP数据包的计数值, 或者数据包的 SN号。 MeNB侧的 PDCP实 体根据所述反馈信息决定是否清楚緩存中的对应数据包。
本实施例中, 所述的特定周期可以是基站上层协议配置的, 或者通过 运营管理维护 (OAM ) 实体预配置的。 本实施例是周期性地发送数据, 即 上述实施例中指定的时间间隔相等, 同理下面以特定周期触发为条件的实 施例也是类似的情况。
可选的, 所述 SeNB侧的 RLC层实体也可以按照特定数据处理事件触 发上述信息的发送, 所述的特定事件是指当 RLC实体成功发送一个或若干 个 PDCP层 PDU数据包时, 会触发所述 RLC实体发送上述信息, 否则不 发送相关信息。
可选的, 上述信息的发送也可以按照周期和事件共同触发的方式, 即 两种触发方式混合触发。
实施例四:
如图 8, SeNB侧的 RLC实体按照特定周期向 MeNB侧的 PDCP实体 发送所述 RLC实体对 PDCP用户面数据包的发送统计信息, 其中所述发送 统计信息包括经过统计获得的发送的 PDCP数据包的丟包率和时延信息。 其中所述的丟包率和时延信息的获得方式由具体实现方式而定, 与本发明 无关, 在此不做赘述。 MeNB侧的 PDCP实体根据所述统计信息进一步统 计相关承载的业务质量信息。
本实施例中, 所述的特定周期可以是基站上层协议配置的, 比如由 MeNB 通过信令指示所述的特定周期, 或者通过运营管理维护实体预配置 的。
可选的, 所述 RLC实体也可以按照特定数据处理事件触发上述信息的 发送, 所述的特定事件是指当只有当获得统计信息后立即发送, 否则不发 送相关信息。
实施例五:
如图 9, 发送方为 PDCP层实体所在的基站 MeNB,按照特定数据处理 事件触发向 RLC实体所在的 SeNB发送 MeNB侧一个或多个承载的 PDCP 协议实体对用户面数据包的丟弃指示信息, 所述信息中包含一个或多个承 载的标识信息, 以及各承载的 PDCP 实体丟弃的数据包的编号信息。 其中 所述的编号信息是指 PDCP数据包的计数值, 或者数据包的 SN号。 SeNB 侧的各个 RLC实体根据所述消息中对应承载的丟弃指示信息来决定是否放 弃对本承载对应的 PDCP数据包的发送。
其中, 所述的特定数据处理事件触发, 是指 MeNB侧的一个或多个承 载的 PDCP实体对一个或若干个数据包发生了丟弃处理。
可选的, 本实施例中, MeNB 也可以按照特定周期触发上述信息的发 送, 其中的特定周期可以是基站上层协议配置的, 或者通过运营管理维护 实体预配置的。
实施例六:
如图 10, SeNB按照特定周期向 MeNB发送 SeNB侧一个或多个承载 的 RLC实体对 PDCP用户面数据包的发送成功反馈信息, 所述信息中包含 一个或多个承载的标识信息, 以及各 RLC实体成功发送的 PDCP数据包的 编号信息。 其中所述的编号信息可以是指 PDCP数据包的计数值, 或者数 据包的 SN号。所述 MeNB根据所述反馈信息中各承载的成功发送的 PDCP 数据报编号, 决定各承载 PDCP对本承载緩存各数据的处理。
本实施例中, 所述的特定周期可以是基站上层协议配置的, 或者通过 运营管理维护实体预配置的。
可选的, 所述 SeNB 也可以按照特定数据处理事件触发上述信息的发 送, 所述的特定事件是指当 SeNB的一个或多个承载的 RLC实体成功发送 一个或若干个 PDCP层 PDU数据包时, 会触发 RLC发送上述信息, 否则 不发送相关信息。
可选的, 上述信息的发送也可以按照周期和事件共同触发的方式, 即 两种触发方式混合触发。 实施例七:
如图 11, SeNB按照特定周期和数据处理事件触发规则向 MeNB发送 SeNB对 MeNB的分流 PDCP数据包的发送能力估算信息,其中所述的估算 信息代表了 SeNB估算的本基站上部分或所有承载的 RLC实体在 =指定估 算周期内可以发送的 PDCP数据包数量, 其中估算方法由具体实现方式而 定,与本发明无关,在此不做赘述。其中所述的指定估算周期可以是由 OAM 预配置的或由 MeNB通过信令为 SeNB配置的。 MeNB收到后根据所述的 估算信息决定下一步各个分流承载 PDCP实体向 SeNB侧 RLC实体分流的 PDCP数据包数量。
可选的, SeNB 发送的信息中还可以包含一个或若干个承载的标识信 息。
本实施例中,可选的,所述 SeNB也可以按照特定数据处理事件或特定 周期触发上述信息的发送。
实施例八:
如图 12所示, 本实施例提供了一种基站, 应用于长期演进系统的双连 接数据分流技术中, 包括: 发送模块和数据处理模块, 所述数据处理模块 配置为对所述基站承载的用户面数据进行处理; 所述发送模块配置为根据 预设规则将所述数据处理模块对用户面数据处理的相关信息分批发送给对 端的基站。
本实施例的基站可以分批发送信息, 解决了因基站间通信接口带宽限 制导致的时延问题和乱序丟包问题。
优先地, 所述发送模块配置为:
当指定的时间间隔到达时, 将所述数据处理模块对用户面数据处理的 相关信息发送给对端的基站;
和 /或 当所述数据处理模块对用户面数据的处理达到预设条件时, 将所述数 据处理模块对用户面数据的处理的相关信息发送给对端的基站。
优先地, 所述数据处理模块对所述对用户面数据处理包括: 对用户面 数据的丟弃处理, 对用户面数据的发送处理, 或对用户面数据的状态统计 处理。
优先地, 在所述发送模块配置为当所述数据处理模块对用户面数据的 处理达到预设条件时, 将所述数据处理模块对用户面数据的处理的相关信 息发送给对端的基站的情况下;
当所述基站作为主控基站, 并且所述数据处理模块为分组数据汇聚协 议层实体时, 所述数据处理模块对用户面数据的处理达到预设条件包括: 所述分组数据汇聚协议层实体对用户面数据包发生丟弃处理, 所述对用户 面数据的处理的相关信息包括: 所述分组数据汇聚协议层实体对用户面数 据包的丟弃指示信息;
当所述基站作为受控基站, 并且所述数据处理模块为无线链路控制协 议层实体时, 所述数据处理模块对用户面数据的处理达到预设条件包括: 所述无线链路控制协议层实体对分组数据汇聚协议层实体分流的用户面数 据包发生发送处理; 所述对用户面数据的处理的相关信息包括: 受控基站 侧承载的无线链路控制协议层实体对分组数据汇聚协议层实体用户面数据 包的发送成功反馈信息;
当所述基站作为受控基站, 并且所述数据处理模块为无线链路控制协 议层实体时, 所述数据处理模块对用户面数据的处理达到预设条件包括: 所述无线链路控制协议层实体对分组数据汇聚协议层实体用户面数据包发 生发送统计处理; 所述对用户面数据的处理的相关信息包括: 受控基站侧 承载的无线链路控制协议层实体对分组数据汇聚协议层实体用户面数据包 的发送统计信息; 当所述基站作为受控基站时, 所述数据处理模块对用户面数据的处理 达到预设条件包括: 所述数据处理模块对主控基站的分流分组数据汇聚协 议层实体数据包的发送能力发生估算处理; 所述对用户面数据的处理的相 关信息包括: 对主控基站的分流分组数据汇聚协议层实体数据包的发送能 力的估算信息。
实施例九:
如图 13所示, 本实施例提供了一种信息交互系统, 应用于长期演进系 统的双连接数据分流技术中, 包括第一基站和第二基站; 所述第一基站包 括: 第一数据处理模块和第一发送模块, 所述第二基站包括: 第二数据处 理模块和第二发送模块;
所述第一数据处理模块配置为对所述第一基站承载的用户面数据进行 处理;
所述第一发送模块配置为根据预设规则将所述第一数据处理模块对用 户面数据处理的相关信息分批发送给所述第二基站;
所述第二数据处理模块配置为对所述第二基站承载的用户面数据进行 处理;
所述第二发送模块配置为根据预设规则将所述第二数据处理模块对用 户面数据处理的相关信息分批发送给所述第一基站。
优先地, 所述第一发送模块配置为:
当指定的时间间隔到达时, 将第一数据处理模块对所述用户面数据处 理的相关信息发送给所述第二基站;
和 /或
当所述第一数据处理模块对用户面数据的处理达到预设条件时, 将所 述第一数据处理模块对用户面数据的处理的相关信息发送给所述第二基 站。 优先地, 所述第二发送模块配置为:
当指定的时间间隔到达时, 将第二数据处理模块对所述用户面数据处 理的相关信息发送给所述第一基站;
和 /或
当所述第二数据处理模块对用户面数据的处理达到预设条件时, 将所 述第二数据处理模块对用户面数据的处理的相关信息发送给所述第一基 站。
优先地, 所述第一数据处理模块或所述第二数据处理模块对所述对用 户面数据的处理包括: 对用户面数据的丟弃处理, 对用户面数据的发送处 理, 或对用户面数据的状态统计处理。
本实施例中系统可以解决因为不同基站进行交互时的一致性问题, 保 证交互双方能有效理解对端的交互信息; 另外, 该交互方案可以最大化的 适应 Xn口的高时延和有线带宽的需求, 达到效率与性能的平衡。 同时, 也 保证了两者间交互的灵活性, 降低具体实现中的复杂性。
以上内容是结合具体的实施方式对本发明所作的进一步详细说明, 不 能认定本发明的具体实施只局限于这些说明。 对于本发明所属技术领域的 普通技术人员来说, 在不脱离本发明构思的前提下, 还可以做出若干简单 推演或替换, 都应当视为属于本发明的保护范围。

Claims

权利要求书
1、一种信息交互方法,应用于长期演进系统的双连接数据分流技术中, 其中, 发送方根据预设规则将其对用户面数据处理的相关信息分批发送给 相应的接收方。
2、 如权利要求 1所述的信息交互方法, 其中, 所述发送方根据预设规 则将其对用户面数据处理的相关信息分批发送给相应的接收方包括:
当指定的时间间隔到达时, 所述发送方将其对用户面数据处理的相关 信息发送给相应的接收方;
和 /或
当发送方对用户面数据的处理达到预设条件时, 所述发送方将所述对 用户面数据的处理的相关信息发送给接收方。
3、 如权利要求 1或 2所述的信息交互方法, 其中, 所述对用户面数据 的处理包括: 对用户面数据的丟弃处理、 对用户面数据的发送处理、 或对 用户面数据的状态统计处理。
4、 如权利要求 3所述的信息交互方法, 其中, 在所述发送方根据预设 规则将其对用户面数据处理的相关信息分批发送给相应的接收方包括: 当 发送方对用户面数据的处理达到预设条件时, 所述发送方将所述对用户面 数据的处理的相关信息发送给接收方的情况下:
当所述发送方包括主控基站侧承载的分组数据汇聚协议层实体, 所述 接收方包括受控基站侧承载的无线链路控制协议层实体时, 所述发送方对 用户面数据的处理达到预设条件包括: 所述主控基站侧承载的分组数据汇 聚协议层实体对用户面数据包发生丟弃处理; 所述对用户面数据的处理的 相关信息包括: 所述分组数据汇聚协议层实体对用户面数据包的丟弃指示 信息;
当所述发送方包括受控基站侧承载的无线链路控制协议层实体, 所述 接收方包括主控基站侧的承载的分组数据汇聚协议层实体时, 所述发送方 对用户面数据的处理达到预设条件包括: 所述受控基站侧承载的无线链路 控制协议层实体对分组数据汇聚协议层实体分流的用户面数据包发生发送 处理; 所述对用户面数据的处理的相关信息包括: 受控基站侧承载的无线 链路控制协议层实体对分组数据汇聚协议层实体用户面数据包的发送成功 反馈信息;
当所述发送方包括受控基站侧承载的无线链路控制协议层实体, 所述 接收方包括主控基站侧的承载的分组数据汇聚协议层实体时, 所述发送方 对用户面数据的处理达到预设条件包括: 所述受控基站侧的无线链路控制 协议层实体对分组数据汇聚协议层实体用户面数据包发生发送统计处理; 所述对用户面数据的处理的相关信息包括: 受控基站侧承载的无线链路控 制协议层实体对分组数据汇聚协议层实体用户面数据包的发送统计信息; 当所述发送方包括主控基站, 所述接收方包括受控基站时, 所述发送 方对用户面数据的处理达到预设条件包括: 所述主控基站侧承载的分组数 据汇聚协议层实体对用户面数据包发生丟弃处理; 所述对用户面数据的处 理的相关信息包括: 主控基站侧承载的分组数据汇聚协议层实体对用户面 数据包的丟弃指示信息;
当所述发送方包括受控基站, 所述接收方包括主控基站时, 所述发送 方对用户面数据的处理达到预设条件包括: 所述受控基站侧承载的无线链 路控制协议层实体对分组数据汇聚协议层实体分流的用户面数据包发生发 送处理, 所述对用户面数据的处理的相关信息包括: 受控基站侧承载的无 线链路控制协议层实体对分组数据汇聚协议层实体分流的用户面数据包发 送成功的反馈信息;
当所述发送方包括受控基站, 所述接收方包括主控基站时, 所述发送 方对用户面数据的处理达到预设条件包括: 受控基站对主控基站的分流分 组数据汇聚协议层实体数据包的发送能力发生估算处理; 所述对用户面数 据的处理的相关信息包括: 对主控基站的分流分组数据汇聚协议层实体数 据包的发送能力的估算信息。
5、 如权利要求 4所述的信息交互方法, 其中, 所述对用户面数据的处 理的相关信息还包括: 所述用户面数据对应承载的承载标识信息。
6、 一种基站, 应用于长期演进系统的双连接数据分流技术中, 其中, 包括: 发送模块和数据处理模块, 所述数据处理模块配置为对所述基站承 载的用户面数据进行处理; 所述发送模块配置为根据预设规则将所述数据 处理模块对用户面数据处理的相关信息分批发送给对端的基站。
7、 如权利要求 6所述的基站, 其中, 所述发送模块配置为: 当指定的时间间隔到达时, 将所述数据处理模块对用户面数据处理的 相关信息发送给对端的基站;
和 /或
当所述数据处理模块对用户面数据的处理达到预设条件时, 将所述数 据处理模块对用户面数据的处理的相关信息发送给对端的基站。
8、 如权利要求 6或 7所述的基站, 其中, 所述数据处理模块对所述对 用户面数据的处理包括: 对用户面数据的丟弃处理、 对用户面数据的发送 处理、 或对用户面数据的状态统计处理。
9、 如权利要求 8所述的基站, 其中, 在所述发送模块配置为当所述数 据处理模块对用户面数据的处理达到预设条件时, 将所述数据处理模块对 用户面数据的处理的相关信息发送给对端的基站的情况下;
当所述基站作为主控基站, 并且所述数据处理模块为分组数据汇聚协 议层实体时, 所述数据处理模块对用户面数据的处理达到预设条件包括: 所述分组数据汇聚协议层实体对用户面数据包发生丟弃处理, 所述对用户 面数据的处理的相关信息包括: 所述分组数据汇聚协议层实体对用户面数 据包的丟弃指示信息;
当所述基站作为受控基站, 并且所述数据处理模块为无线链路控制协 议层实体时, 所述数据处理模块对用户面数据的处理达到预设条件包括: 所述无线链路控制协议层实体对分组数据汇聚协议层实体分流的用户面数 据包发生发送处理; 所述对用户面数据的处理的相关信息包括: 受控基站 侧承载的无线链路控制协议层实体对分组数据汇聚协议层实体用户面数据 包的发送成功反馈信息;
当所述基站作为受控基站, 并且所述数据处理模块为无线链路控制协 议层实体时, 所述数据处理模块对用户面数据的处理达到预设条件包括: 所述无线链路控制协议层实体对分组数据汇聚协议层实体用户面数据包发 生发送统计处理; 所述对用户面数据的处理的相关信息包括: 受控基站侧 承载的无线链路控制协议层实体对分组数据汇聚协议层实体用户面数据包 的发送统计信息;
当所述基站作为受控基站时, 所述数据处理模块对用户面数据的处理 达到预设条件包括: 所述数据处理模块对主控基站的分流分组数据汇聚协 议层实体数据包的发送能力发生估算处理; 所述对用户面数据的处理的相 关信息包括: 对主控基站的分流分组数据汇聚协议层实体数据包的发送能 力的估算信息 。
10、 一种信息交互系统, 应用于长期演进系统的双连接数据分流技术 中, 其中, 包括第一基站和第二基站; 所述第一基站包括: 第一数据处理 模块和第一发送模块, 所述第二基站包括: 第二数据处理模块和第二发送 模块;
所述第一数据处理模块配置为对所述第一基站承载的用户面数据进行 处理;
所述第一发送模块配置为根据预设规则将所述第一数据处理模块对用 户面数据处理的相关信息分批发送给所述第二基站;
所述第二数据处理模块配置为对所述第二基站承载的用户面数据进行 处理;
所述第二发送模块配置为根据预设规则将所述第二数据处理模块对用 户面数据处理的相关信息分批发送给所述第一基站。
11、 如权利要求 10所述的信息交互系统, 其中, 所述第一发送模块配 置为:
当指定的时间间隔到达时, 将第一数据处理模块对所述用户面数据处 理的相关信息发送给所述第二基站;
和 /或
当所述第一数据处理模块对用户面数据的处理达到预设条件时, 将所 述第一数据处理模块对用户面数据的处理的相关信息发送给所述第二基 站。
12、 如权利要求 10或 11所述的信息交互系统, 其中, 所述第二发送 模块配置为:
当指定的时间间隔到达时, 将第二数据处理模块对所述用户面数据处 理的相关信息发送给所述第一基站;
和 /或
当所述第二数据处理模块对用户面数据的处理达到预设条件时, 将所 述第二数据处理模块对用户面数据的处理的相关信息发送给所述第一基 站。
13、 如权利要求 11所述的信息交互系统, 其中, 所述第一数据处理模 块或所述第二数据处理模块对所述对用户面数据的处理包括: 对用户面数 据的丟弃处理、 对用户面数据的发送处理、 或对用户面数据的状态统计处 理。
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