CN114867071A - A method, electronic device and storage medium for establishing a QoS flow and DRB aggregation relationship - Google Patents
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Abstract
本发明提供了一种Qos流与DRB聚合关系建立方法,在LTE站切换到NR站的过程中,通过切换请求中携带的QoS流和E‑RAB信息,将源LTE基站的QoS流和E‑RAB聚合关系映射为目的NR基站QoS流和DRB的聚合关系。本发明能够有效降低数据面处理复杂度,减少UE业务数据中断风险。
The present invention provides a method for establishing an aggregation relationship between a QoS flow and a DRB. In the process of handover from an LTE station to an NR station, the QoS flow and E-RAB information of the source LTE base station are combined with the QoS flow and E-RAB information carried in the handover request. The RAB aggregation relationship is mapped to the aggregation relationship between the QoS flow of the destination NR base station and the DRB. The invention can effectively reduce the data plane processing complexity and reduce the risk of UE service data interruption.
Description
技术领域technical field
本发明涉及通信技术领域,特别涉及一种QoS流与DRB聚合关系建立方法、电子设备及存储介质,适用于3GPP无线NR系统The present invention relates to the field of communication technologies, in particular to a method for establishing an aggregation relationship between QoS flows and DRBs, an electronic device and a storage medium, which are suitable for 3GPP wireless NR systems
背景技术Background technique
涉及3GPP无线系统38.413,36.413,38.300协议中定义了LTE切换到NR的相关流程如图1所示,目的NR站需对HANDOVER REQUEST中的携带的QoS流进行准入。目前,相关38.413和38.300协议中并未规定两者的映射方式。Related to 3GPP wireless systems 38.413, 36.413, and 38.300 protocols, the relevant flow of LTE to NR handover is defined as shown in Figure 1. The destination NR station needs to access the QoS flow carried in the HANDOVER REQUEST. At present, the related 38.413 and 38.300 protocols do not specify their mapping methods.
发明内容SUMMARY OF THE INVENTION
针对现有技术中存在的问题,提供了一种QoS流与DRB聚合关系建立方法、电子设备及存储介质,能够生成本端QoS流和DRB的聚合关系,降低数据面处理复杂度,减少UE业务数据中断风险。Aiming at the problems existing in the prior art, a method for establishing an aggregation relationship between QoS flows and DRBs, an electronic device and a storage medium are provided, which can generate the aggregation relationship between local QoS flows and DRBs, reduce the complexity of data plane processing, and reduce UE services. Risk of data interruption.
本发明采用的技术方案如下:一种QoS流与DRB聚合关系建立方法,在LTE切换到NR基站过程中,目的NR站根据接收到的切换请求中携带的信息获取需要建立的QoS流信息,并建立对应QoS流到DRB的聚合关系。The technical scheme adopted by the present invention is as follows: a method for establishing an aggregation relationship between a QoS flow and a DRB, in the process of handover from LTE to an NR base station, the target NR station obtains the QoS flow information to be established according to the information carried in the received handover request, and Establish an aggregation relationship corresponding to the QoS flow to the DRB.
进一步的,NR基站获取切换请求存在的源LTE基站上QoS流到E-RAB的聚合关系,并将E-RAB作为DRB ID,完成QoS流到DRB的聚合关系建立。Further, the NR base station obtains the aggregation relationship of the QoS flow to the E-RAB on the source LTE base station where the handover request exists, and uses the E-RAB as the DRB ID to complete the establishment of the aggregation relationship of the QoS flow to the DRB.
进一步的,在NR基站中,将有相同E-RAB的QoS流聚合到同一个DRB上。Further, in the NR base station, QoS flows with the same E-RAB are aggregated to the same DRB.
进一步的,还包括,目的NR站在LTE站切换到NR站过程中E-RAB与DRB映射具体步骤:Further, it also includes specific steps for mapping between E-RAB and DRB in the process of switching from the LTE station to the NR station at the destination NR station:
步骤1、目的NR站接收到源LTE站发送的切换请求,并对切换请求进行解码;Step 1, the destination NR station receives the handover request sent by the source LTE station, and decodes the handover request;
步骤2、目的NR站根据解码后的切换请求获取所需PDU的相关信息以及源LTE站的E-RAB ID信息;其中,PDU的相关信息包括QoS流以及对应的E-RAB信息;Step 2, the destination NR station obtains the relevant information of the required PDU and the E-RAB ID information of the source LTE station according to the decoded handover request; wherein, the relevant information of the PDU includes QoS flow and corresponding E-RAB information;
步骤3、根据QoS流对应的E-RAB ID查找该ID是否存在源LTE站E-RAB ID信息中,若存在,则将该E-RAB ID作为DRB ID,相同的E-RAB ID所对应的QoS流均聚合到该DRB中;若QoS流不存在的对应的E-RAB ID或对应的E-RAB ID并不存在于源LTE站E-RAB ID信息中,则按照本站规则生成新的DRB聚合关系。Step 3. Find out whether the ID exists in the E-RAB ID information of the source LTE station according to the E-RAB ID corresponding to the QoS flow. All QoS flows are aggregated into the DRB; if the corresponding E-RAB ID that does not exist in the QoS flow or the corresponding E-RAB ID does not exist in the E-RAB ID information of the source LTE station, a new E-RAB ID is generated according to the rules of the local station. DRB aggregation relationship.
本发明还提出了一种电子设备,包括存储器和处理器,所述存储器上存储有能够被处理器加载并执行如上述的QoS流与DRB聚合关系建立方法对应的计算机程序。The present invention also provides an electronic device, including a memory and a processor, where the memory stores a computer program that can be loaded by the processor and executes the above-mentioned method for establishing a QoS flow and a DRB aggregation relationship.
本发明还提出了一种计算机可读存储介质,其上存储有计算机程序指令,其中,所述程序指令被处理器执行时用于实现上述的QoS流与DRB聚合关系建立方法对应的过程。The present invention also provides a computer-readable storage medium on which computer program instructions are stored, wherein when the program instructions are executed by a processor, the program instructions are used to implement the process corresponding to the above-mentioned method for establishing a QoS flow and a DRB aggregation relationship.
与现有技术相比,采用上述技术方案的有益效果为:本发明能够有效降低数据面处理复杂度,减少UE业务数据中断风险。Compared with the prior art, the beneficial effects of adopting the above technical solutions are: the present invention can effectively reduce the complexity of data plane processing and reduce the risk of UE service data interruption.
附图说明Description of drawings
图1为现有技术中LTE切换到NR的具体流程图。FIG. 1 is a specific flowchart of handover from LTE to NR in the prior art.
图2为本发明提出的QoS流与DRB聚合关系建立方法流程图。FIG. 2 is a flowchart of a method for establishing an aggregation relationship between a QoS flow and a DRB proposed by the present invention.
具体实施方式Detailed ways
下面详细描述本申请的实施例,所述实施例的示例在附图中示出,其中自始至终相同或类似的标号表示相同或类似的模块或具有相同或类似功能的模块。下面通过参考附图描述的实施例是示例性的,仅用于解释本申请,而不能理解为对本申请的限制。相反,本申请的实施例包括落入所附加权利要求书的精神和内涵范围内的所有变化、修改和等同物。The following describes in detail the embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar modules or modules having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, but should not be construed as a limitation on the present application. On the contrary, the embodiments of the present application include all changes, modifications and equivalents falling within the spirit and scope of the appended claims.
实施例1Example 1
如图2所示,本实施例提出了Inter Rat切换场景下,目的NR基站上QoS流准入过程中,将源LTE基站E-RAB的QoS流聚合关系映射到目的NR基站DRB的方法,用于生成目的端NR基站用户QOS流和DRB的聚合关系,降低目的基站对UE数据通道的处理复杂度,减少切换过程中数据流中断的风险。具体方案如下:As shown in Figure 2, this embodiment proposes a method for mapping the QoS flow aggregation relationship of the source LTE base station E-RAB to the destination NR base station DRB during the QoS flow admission process on the target NR base station in the Inter Rat handover scenario. It is used to generate the aggregation relationship between the user QOS flow and DRB of the destination NR base station, which reduces the processing complexity of the UE data channel by the destination base station, and reduces the risk of data flow interruption during the handover process. The specific plans are as follows:
一种QoS流与DRB聚合关系建立方法,在LTE切换到NR基站过程中,目的NR站根据接收到的切换请求中携带的信息获取需要建立的QoS流信息,并建立对应QoS流到DRB的聚合关系。A method for establishing an aggregation relationship between a QoS flow and a DRB. In the process of handover from LTE to an NR base station, the destination NR station obtains the information of the QoS flow to be established according to the information carried in the received handover request, and establishes the aggregation of the corresponding QoS flow to the DRB. relation.
具体的,NR基站获取切换请求存在的源LTE基站上QoS流到E-RAB的聚合关系,并将E-RAB作为DRB ID,完成QoS流到DRB的聚合关系建立,并将有相同E-RAB的QoS流聚合到同一个DRB上。Specifically, the NR base station obtains the aggregation relationship of the QoS flow to the E-RAB on the source LTE base station where the handover request exists, and uses the E-RAB as the DRB ID to complete the establishment of the aggregation relationship of the QoS flow to the DRB, and will have the same E-RAB QoS flows are aggregated to the same DRB.
其中,切换请求(HANDOVER REQUEST)携带的PDU Session Resource Setup List、PDU Session Resource Setup Item、Handover Request Transfer,可用于获取需要建立的QoS流信息,QoS流Setup Request Item中E-RAB ID为可选信元,用于和Source toTarget Transparent Container中的E-RAB ID映射,指示哪些QoS流需要进行前传。Among them, the PDU Session Resource Setup List, PDU Session Resource Setup Item, and Handover Request Transfer carried in the handover request (HANDOVER REQUEST) can be used to obtain the QoS flow information to be established, and the E-RAB ID in the QoS flow Setup Request Item is an optional information. The element is used to map with the E-RAB ID in the Source toTarget Transparent Container, indicating which QoS flows need to be forwarded.
在本实施例中,对目的NR站在LTE站切换到NR站过程中E-RAB与DRB映射过程即QoS流与DRB聚合关系建立过程进行具体说明:In this embodiment, the E-RAB and DRB mapping process, that is, the QoS flow and DRB aggregation relationship establishment process in the process of switching the destination NR station to the NR station, is specifically described:
步骤1、目的NR站接收到源LTE站发送的切换请求,并通过ASN解码该切换请求;Step 1, the destination NR station receives the handover request sent by the source LTE station, and decodes the handover request through the ASN;
步骤2、目的NR站根据解码后的切换请求获取所需PDU的相关信息以及源LTE站的E-RAB ID信息;其中,PDU的相关信息通过切换请求携带的PDU Session Resource SetupList获取,主要包括基本PDU SESSION ID信息,QoS流以及对应的E-RAB相关信息等;源LTE站的E-RAB的基本信息通过切换请求携带的Source to Target Transparent Container获取,包括E-RAB ID等。Step 2, the destination NR station obtains the relevant information of the required PDU and the E-RAB ID information of the source LTE station according to the decoded handover request; wherein, the relevant information of the PDU is obtained through the PDU Session Resource SetupList carried in the handover request, which mainly includes basic information. PDU SESSION ID information, QoS flow and corresponding E-RAB related information, etc.; the basic information of the E-RAB of the source LTE station is obtained through the Source to Target Transparent Container carried in the handover request, including the E-RAB ID, etc.
步骤3、根据QoS流对应的E-RAB ID查找该ID是否存在源LTE站E-RAB ID信息中,若存在,则将该E-RAB ID作为DRB ID,相同的E-RAB ID所对应的QoS流均聚合到该DRB中;若QoS流不存在的对应的E-RAB ID或对应的E-RAB ID并不存在于源LTE站E-RAB ID信息中,则按照本站规则生成新的DRB聚合关系。Step 3. Find out whether the ID exists in the E-RAB ID information of the source LTE station according to the E-RAB ID corresponding to the QoS flow. All QoS flows are aggregated into the DRB; if the corresponding E-RAB ID that does not exist in the QoS flow or the corresponding E-RAB ID does not exist in the E-RAB ID information of the source LTE station, a new E-RAB ID is generated according to the rules of the local station. DRB aggregation relationship.
本发明在LTE站切换到NR站的过程中,通过切换请求中携带的QoS流和E-RAB信息,将源LTE基站的QoS流和E-RAB聚合关系映射为目的NR基站QoS流和DRB的聚合关系,以减少切换过程中数据面处理复杂度和数据流中断风险。In the process of handover from an LTE station to an NR station, the present invention maps the QoS flow and E-RAB aggregation relationship of the source LTE base station to the QoS flow of the target NR base station and the QoS flow of the DRB through the QoS flow and E-RAB information carried in the handover request. Aggregate relationships to reduce the complexity of data plane processing and the risk of data flow interruption during handover.
实施例2Example 2
本实施例还提出了一种电子设备,包括存储器和处理器,所述存储器上存储有能够被处理器加载并执行如实施例1所述的QoS流与DRB聚合关系建立方法对应的计算机程序。This embodiment also provides an electronic device, including a memory and a processor, where the memory stores a computer program that can be loaded by the processor and executes the method for establishing a QoS flow and DRB aggregation relationship according to Embodiment 1.
实施例3Example 3
本发明还提出了一种计算机可读存储介质,其上存储有计算机程序指令,其中,所述程序指令被处理器执行时用于实现实施例1所述的QoS流与DRB聚合关系建立方法对应的过程。The present invention also provides a computer-readable storage medium on which computer program instructions are stored, wherein, when the program instructions are executed by a processor, the program instructions are used to implement the method for establishing a QoS flow and a DRB aggregation relationship described in Embodiment 1. the process of.
需要说明的是,在本发明实施例的描述中,除非另有明确的规定和限定,术语“设置”、“连接”应做广义理解,例如,可以是固定连接,也可以是可拆卸连接,或一体地连接;可以是直接连接,也可以通过中间媒介间接连接。对于本领域的普通技术人员而言,可以具体情况理解上述术语在本发明中的具体含义;实施例中的附图用以对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例是本发明一部分实施例,而不是全部的实施例。通常在此处附图中描述和示出的本发明实施例的组件可以以各种不同的配置来布置和设计。It should be noted that, in the description of the embodiments of the present invention, unless otherwise expressly specified and limited, the terms "arrangement" and "connection" should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection, Or integrally connected; it can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood under specific circumstances; the accompanying drawings in the embodiments are used to clearly and completely describe the technical solutions in the embodiments of the present invention. The described embodiments are some, but not all, of the embodiments of the present invention. The components of the embodiments of the invention generally described and illustrated in the drawings herein may be arranged and designed in a variety of different configurations.
尽管上面已经示出和描述了本申请的实施例,可以理解的是,上述实施例是示例性的,不能理解为对本申请的限制,本领域的普通技术人员在本申请的范围内可以对上述实施例进行变化、修改、替换和变型。Although the embodiments of the present application have been shown and described above, it should be understood that the above embodiments are exemplary and should not be construed as limitations to the present application. Embodiments are subject to variations, modifications, substitutions and variations.
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