SDAP configuration method and device in non-activated state and computer readable storage medium
阅读说明：本技术 非激活态下sdap配置方法、装置和计算机可读存储介质 (SDAP configuration method and device in non-activated state and computer readable storage medium ) 是由 孙军帅 于 2019-03-21 设计创作，主要内容包括：本发明实施例提供了一种非激活态下服务数据适配协议(SDAP)配置方法、装置和计算机可读存储介质,所述方法应用于网络侧,包括：设置SDAP配置相关信息；所述SDAP配置相关信息至少包括：非激活态下的无线承载配置信息和SDAP实体的配置信息；发送所述SDAP配置相关信息。(The embodiment of the invention provides a method, a device and a computer readable storage medium for configuring a Service Data Adaptation Protocol (SDAP) in an inactive state, wherein the method is applied to a network side and comprises the following steps: setting SDAP configuration related information; the SDAP configuration related information at least comprises: wireless bearing configuration information and SDAP entity configuration information under an inactive state; and sending the SDAP configuration related information.)
1. A method for configuring service data adaptation protocol SDAP in an inactive state is applied to a network side and comprises the following steps:
setting SDAP configuration related information; the SDAP configuration related information at least comprises: wireless bearing configuration information and SDAP entity configuration information under an inactive state;
and sending the SDAP configuration related information.
2. The method of claim 1, wherein before the setting the SDAP configuration related information, the method further comprises:
determining that the state of the user equipment UE is to enter a radio resource control INACTIVE RRC _ INACTIVE state.
3. The method according to claim 1, wherein the radio bearer configuration information in the inactive state includes:
dedicated signaling set for QoS flow of quality of service flow: RRC _ INATIVE _ DRB-ToAddMo dList.
4. The method of claim 1, wherein information of a Data Radio Bearer (DRB) in the radio bearer configuration information in the inactive state is an invalid value or a preset value;
the Identity of the DRB is denoted RRC _ inactive _ DRB-Identity.
5. The method of claim 1, wherein the radio bearer configuration information in the inactive state omits establishment of a Packet Data Convergence Protocol (PDCP) entity.
6. The method of claim 1, wherein the configuration information of the SDAP entity at least comprises: information of protocol data unit PDU Session and configuration information of QoS flow.
7. The method of claim 1, wherein the configuration information of the SDAP entity further comprises: the header of the SDAPPDU packet.
8. The method of claim 1, wherein the type of DRB default DRB is set to Optional in the configuration information of the SDAP entity.
9. An apparatus for configuring service data adaptation protocol SDAP in an inactive state, applied to a network side, includes:
the setting module is used for setting the related information of the SDAP configuration; the SDAP configuration related information at least comprises: wireless bearing configuration information and SDAP entity configuration information under an inactive state;
a sending module, configured to send the relevant information of the SDAP configuration.
10. An apparatus for configuring Service Data Adaptation Protocol (SDAP) in an inactive state, the apparatus comprising: a processor and a memory for storing a computer program capable of running on the processor,
wherein the processor is adapted to perform the steps of the method of any one of claims 1-8 when running the computer program.
11. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 8.
Technical Field
The present invention relates to the field of mobile communications technologies, and in particular, to a method and an apparatus for configuring a Service Data Adaptation Protocol (SDAP) in an INACTIVE (RRC _ INACTIVE) state, and a computer-readable storage medium.
Background
5G introduces a radio resource control INACTIVE RRC _ INACTIVE state. In this state, the connection of the UE between the 5 GC-NG-RANs maintains a connected state, and the AS context of the UE is stored in the NG-RAN and the UE.
When the UE is in the RRC _ CONNECTED state or transits from the RRC _ IDLE state to the RRC _ CONNECTED state, the RRC configures, to the SDAP, a PDU Session and a Data Radio Bearer (DRB) corresponding to each QoS Flow of the UE in the SDAP sublayer. When the UE transitions from RRC _ IDLE or RRC _ CONNECTED state to RRC _ INACTIVE state, there is no definition given in the protocol as to how to configure the SDAP protocol sub-layer.
Because the connection between the Ng interfaces (5GC-NG-RAN) of the UE exists in the RRC _ INACTIVE state, on the network side, when the core network (5GC) has data to send, the data is directly sent to the NG-RAN through the Ng interfaces; on the UE side, the NAS layer sends data to the SDAP layer. However, on the NG-RAN and the UE, since the UE is in the RRC _ INACTIVE state, the context of the UE is only stored locally in the NG-RAN and the UE, and how to correspond the stored context to the received data packet and ensure the correct storage of the data is a problem to be solved.
Disclosure of Invention
In view of the above, embodiments of the present invention are directed to a method, an apparatus, and a computer-readable storage medium for configuring a Service Data Adaptation Protocol (SDAP) in an inactive state.
In order to achieve the above purpose, the technical solution of the embodiment of the present invention is realized as follows:
the embodiment of the invention provides a method for configuring a Service Data Adaptation Protocol (SDAP) in an inactive state, which is applied to a network side and comprises the following steps:
setting SDAP configuration related information; the SDAP configuration related information at least comprises: wireless bearing configuration information and SDAP entity configuration information under an inactive state;
and sending the SDAP configuration related information.
Optionally, before the setting of the information related to the SDAP configuration, the method further includes:
determining that the state of the user equipment UE is to enter a radio resource control INACTIVE RRC _ INACTIVE state.
Wherein the radio bearer configuration information in the inactive state includes:
dedicated signaling set for QoS flow of quality of service flow: RRC _ INATIVE _ DRB-ToAddModList.
Wherein, the information of the data radio bearer DRB in the radio bearer configuration information in the inactive state is an invalid value or a preset value;
the Identity of the DRB is denoted RRC _ inactive _ DRB-Identity.
Wherein, in the radio bearer configuration information in the inactive state, the establishment of the packet data convergence protocol PDCP entity is omitted.
Wherein the configuration information of the SDAP entity at least comprises: information of protocol data unit PDU Session and configuration information of QoS flow.
Wherein, the configuration information of the SDAP entity further includes: the header of the SDAP PDU packet.
Wherein, in the configuration information of the SDAP entity, the type of the DRB default DRB is set as Optional.
The embodiment of the invention also provides a device for configuring the service data adaptation protocol SDAP in the non-activated state, which is applied to a network side and comprises the following steps:
the setting module is used for setting the related information of the SDAP configuration; the SDAP configuration related information at least comprises: wireless bearing configuration information and SDAP entity configuration information under an inactive state;
a sending module, configured to send the relevant information of the SDAP configuration.
The embodiment of the invention also provides a device for configuring the service data adaptation protocol SDAP in the non-activated state, which comprises the following components: a processor and a memory for storing a computer program capable of running on the processor,
wherein the processor is configured to perform the steps of the above method when running the computer program.
Embodiments of the present invention also provide a computer-readable storage medium, on which a computer program is stored, which, when executed by a processor, implements the steps of the above-mentioned method.
In the method, the device and the computer readable storage medium for configuring Service Data Adaptation Protocol (SDAP) in an inactive state provided by the embodiment of the invention, a network side sets SDAP configuration related information; the SDAP configuration related information at least comprises: wireless bearing configuration information and SDAP entity configuration information under an inactive state; and sending the SDAP configuration related information. In the embodiment of the invention, the network side sets the SDAP configuration related information when the UE is about to enter an inactive state, establishes the SDAP in advance, and then can quickly send data (quickly corresponding the UE context and the data) when the data arrives, thereby reducing the time delay and the system overhead of sending the packet data.
In addition, the SDAP configuration related information of the embodiment of the invention omits the establishment of a packet data convergence protocol PDCP entity and the configuration of the defaultDRB, thereby reducing the complexity of flow control.
Drawings
Fig. 1 is a schematic flow chart of an SDAP configuration method in an inactive state according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an SDAP configuration apparatus in an inactive state according to an embodiment of the present invention.
Detailed Description
The invention is described below with reference to the figures and examples.
An embodiment of the present invention provides a method for configuring a Service Data Adaptation Protocol (SDAP) in an inactive state, as shown in fig. 1, where the method is applied to a network side and includes:
step 101: setting SDAP configuration related information; the SDAP configuration related information at least comprises: wireless bearing configuration information and SDAP entity configuration information under an inactive state;
step 102: and sending the SDAP configuration related information.
In the embodiment of the invention, according to the protocol flow, the RRC of the network side sends (configures) the SDAP configuration related information to the SDAP sublayer of the network side and/or the SDAP sublayer of the UE side.
In the embodiment of the invention, the network side sets the SDAP configuration related information when the UE is about to enter an inactive state, establishes the SDAP in advance, and then can quickly send data (quickly corresponding the UE context and the data) when the data arrives, thereby reducing the time delay and the system overhead of sending the packet data.
In one embodiment, before the setting the SDAP configuration related information, the method further includes:
determining that the state of the user equipment UE is to enter a radio resource control INACTIVE RRC _ INACTIVE state.
In this embodiment of the present invention, the radio bearer configuration information in the inactive state includes:
dedicated signaling set for QoS flow of quality of service flow: RRC _ INATIVE _ DRB-ToAddMo dList.
In the embodiment of the present invention, information of a data radio bearer DRB in the radio bearer configuration information in the inactive state is an invalid value or a preset value;
the Identity of the DRB is denoted RRC _ inactive _ DRB-Identity.
In the embodiment of the invention, the establishment of a packet data convergence protocol PDCP entity is omitted in the radio bearer configuration information in the inactive state. In particular, the method comprises the following steps of,
rebuilding the value reedetashPDCP of the PDCP into an invalid value or does not exist, and recovering the value recoverPDCP of the PDCP into an invalid value or is not configured; the pdcp-Config information is not configured.
In this embodiment of the present invention, the configuration information of the SDAP entity at least includes: information of protocol data unit PDSUSession and configuration information of QoS flow.
In this embodiment of the present invention, the configuration information of the SDAP entity further includes: the header of the SDAP PDU packet.
In the embodiment of the present invention, in the configuration information of the SDAP entity, the type of the DRB default value defaultDRB is set as Optional.
In order to implement the foregoing method, an embodiment of the present invention further provides a device for configuring a service data adaptation protocol SDAP in an inactive state, as shown in fig. 2, where the device is applied to a network side, and includes:
a setting module 201, configured to set the relevant information of the SDAP configuration; the SDAP configuration related information at least comprises: wireless bearing configuration information and SDAP entity configuration information under an inactive state;
a sending module 202, configured to send the relevant information of the SDAP configuration.
In one embodiment, before the setting module 201 sets the SDAP configuration related information, it is further configured to determine that the state of the user equipment UE is to enter the RRC _ INACTIVE state.
In this embodiment of the present invention, the radio bearer configuration information in the inactive state includes:
dedicated signaling set for QoS flow of quality of service flow: RRC _ INATIVE _ DRB-ToAddMo dList.
In the embodiment of the present invention, information of a data radio bearer DRB in the radio bearer configuration information in the inactive state is an invalid value or a preset value;
the Identity of the DRB is denoted RRC _ inactive _ DRB-Identity.
In the embodiment of the invention, the establishment of a packet data convergence protocol PDCP entity is omitted in the radio bearer configuration information in the inactive state. In particular, the method comprises the following steps of,
rebuilding the value reedetashPDCP of the PDCP into an invalid value or does not exist, and recovering the value recoverPDCP of the PDCP into an invalid value or is not configured; the pdcp-Config information is not configured.
In this embodiment of the present invention, the configuration information of the SDAP entity at least includes: information of protocol data unit PDSUSession and configuration information of QoS flow.
In this embodiment of the present invention, the configuration information of the SDAP entity further includes: the header of the SDAP PDU packet.
In the embodiment of the present invention, in the configuration information of the SDAP entity, the type of the DRB default value defaultDRB is set as Optional.
The embodiment of the invention also provides a device for configuring the service data adaptation protocol SDAP in the non-activated state, which is applied to a network side and comprises the following steps: a processor and a memory for storing a computer program capable of running on the processor,
wherein the processor is configured to execute, when running the computer program:
setting SDAP configuration related information; the SDAP configuration related information at least comprises: wireless bearing configuration information and SDAP entity configuration information under an inactive state;
and sending the SDAP configuration related information.
Before the setting of the relevant information of the SDAP configuration, the processor is further configured to execute, when running the computer program:
determining that the state of the user equipment UE is to enter a radio resource control INACTIVE RRC _ INACTIVE state.
Wherein the radio bearer configuration information in the inactive state includes:
dedicated signaling set for QoS flow of quality of service flow: RRC _ INATIVE _ DRB-ToAddMo dList.
Wherein, the information of the data radio bearer DRB in the radio bearer configuration information in the inactive state is an invalid value or a preset value;
the Identity of the DRB is denoted RRC _ inactive _ DRB-Identity.
Wherein, in the radio bearer configuration information in the inactive state, the establishment of the packet data convergence protocol PDCP entity is omitted.
Wherein the configuration information of the SDAP entity at least comprises: information of protocol data unit PDU Session and configuration information of QoS flow.
Wherein, the configuration information of the SDAP entity further includes: the header of the SDAP PDU packet.
Wherein, in the configuration information of the SDAP entity, the type of the DRB default DRB is set as Optional.
It should be noted that: in the device provided in the foregoing embodiment, when performing the SDAP configuration in the inactive state, only the division of each program module is used as an example, and in practical applications, the processing allocation may be completed by different program modules according to needs, that is, the internal structure of the device is divided into different program modules to complete all or part of the processing described above. In addition, the apparatus provided in the above embodiments and the corresponding method embodiments belong to the same concept, and specific implementation processes thereof are described in the method embodiments and are not described herein again.
In an exemplary embodiment, the embodiment of the present invention also provides a computer-readable storage medium, which may be a Memory such as FRAM, ROM, PROM, EPROM, EEPROM, Flash Memory, magnetic surface Memory, optical disc, or CD-ROM; or may be a variety of devices including one or any combination of the above memories, such as a mobile phone, computer, tablet device, personal digital assistant, etc.
An embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, performs:
setting SDAP configuration related information; the SDAP configuration related information at least comprises: wireless bearing configuration information and SDAP entity configuration information under an inactive state;
and sending the SDAP configuration related information.
Before the setting of the SDAP configuration related information, when the computer program is executed by the processor, the computer program further performs:
determining that the state of the user equipment UE is to enter a radio resource control INACTIVE RRC _ INACTIVE state.
Wherein the radio bearer configuration information in the inactive state includes:
dedicated signaling set for QoS flow of quality of service flow: RRC _ INATIVE _ DRB-ToAddMo dList.
Wherein, the information of the data radio bearer DRB in the radio bearer configuration information in the inactive state is an invalid value or a preset value;
the Identity of the DRB is denoted RRC _ inactive _ DRB-Identity.
Wherein, in the radio bearer configuration information in the inactive state, the establishment of the packet data convergence protocol PDCP entity is omitted.
Wherein the configuration information of the SDAP entity at least comprises: information of protocol data unit PDU Session and configuration information of QoS flow.
Wherein, the configuration information of the SDAP entity further includes: the header of the SDAP PDU packet.
Wherein, in the configuration information of the SDAP entity, the type of the DRB default DRB is set as Optional.
The invention is described below in conjunction with the scenario embodiments.
5G introduces the RRC _ INACTIVE state and the SDAP protocol sub-layer. In the RRC _ INACTIVE state, a connection exists on the Ng interface, so when it is necessary to receive and correctly store a data packet on a higher layer, the QoS flow also exists as a data bearer directly on the Ng interface of the 5 GC-Ng-RAN.
The SDAP sublayer configuration in the RRC _ INATIVE state is introduced into the signaling of the RRC. The configuration at least comprises radio bearer configuration information in an RRC-INATIVE state and configuration information of an SDAP entity; and the information of the Data Radio Bearer (DRB) in the radio bearer configuration information is an invalid value, and in the configuration information of the SDAP entity, at least the information of the pdusesion and the configuration information of the QoS flow are carried. The RRC at the network side performs the configuration and sends the configuration to the SDAP sublayer at the network side and/or the SDAP sublayer at the UE side.
Specific information is set as follows:
setting the Radio Bearer (RB: Radio Bearer) configuration information option in an RRC-INATIVE state in Radio Bearer configuration (Radio Bearer Config), wherein the detailed information is as follows:
introducing the exclusive signaling content of configuring the QoS flow under the RRC _ INATIVE state: RRC _ INATIVE _ DRB-ToAddModList, which can be expressed as follows:
RRC_INATIVE_DRB-ToAddModList::＝SEQUENCE(SIZE(1))OF DRB-ToAddMod
the DRB number for this option is set to 1, indicating that the signaling uses only one DRB format to establish all qosflows.
Secondly, in the specific content of the DRB, setting the ID (DRB-Identity) of the DRB as an invalid value, and not establishing a PDCP protocol entity (i.e. the following reseabatshpdcp is invalid or does not exist, the recoverPDCP is invalid or is not configured, and the PDCP-Config information is not configured), as follows:
thirdly, the ID of the DRB is described as RRC _ INATIVE _ DRB-Identity, and the value is an explicit identification value which indicates that the DRB does not need to be established; the specific value may be an invalid value, or a special value may be defined in the protocol, as follows:
drb-Identity RRC_INATIVE_DRB-Identity,
and fourthly, setting the two values of the reseabatshPDCP and the recovery PDCP to FALSE or not (the type is an OPTIONAL type: OPTIONAL) as follows:
reestablishPDCP ENUMERATED{true}OPTIONAL, --Need N
recoverPDCP ENUMERATED{true}OPTIONAL, --Need N
fifthly, the information of the pdcp-config is not configured (the type is an OPTIONAL type: OptiONAL), as follows:
pdcp-Config PDCP-Config OPTIONAL,--Cond PDCP
...
}
the configuration information of the above-mentioned SDAP entity can be realized by the following SDAP-Config, and the specific content is as follows:
SDAP-Config::＝ SEQUENCE{
firstly, the pdu-Session information must be carried in the configuration information of the SDAP entity to identify that the link of the Upper Layer (Upper Layer) of the SDAP is connection-compliant. Corresponds to "5 GC-NG-RANCONNECTION (both C/U-planes) is established for UE" in RRC _ INACTIVE state specified in the protocol.
pdu-Session PDU-SessionID,
Secondly, in the configuration information of the SDAP entity, a header of the SDAP PDU packet may be set as a carrier, and may be valued in a manner specified by an existing RRC protocol (in an RRC _ CONNECTED state), as follows:
sdap-HeaderDL ENUMERATED{present,absent},
sdap-HeaderUL ENUMERATED{present,absent},
and thirdly, in the configuration information of the SDAP entity, configuring the defaultDRB into an unconfigurated type and changing the defaultDRB into an Optional type. Because the type is BOOLEAN, i.e. Boolean, the value is FALSE (no default DRB is identified).
defaultDRB BOOLEAN,
Fourthly, in the configuration information of the SDAP entity, the configuration information of the QoS Flow is required to be carried completely, and configuration (such as establishment, increase or release) is carried out according to actual needs.
In an actual application process, when the state of the UE needs to enter the RRC _ INACTIVE state (no matter the source state is the RRC _ IDLE state or the RRC _ CONNECTED state), the configuration information carrying the DRBs and the QoSFlow is configured to the SDAP through a reconfiguration signaling of the RRC (currently, only the RRC _ CONNECTED state is supported to transition to the RRC _ INACTIVE state in the protocol, and the used RRC reconfiguration signaling process carries the DRBs that need to be released, and when all the DRBs need to be released, the RRC connection is released).
When the RRC configures the RRC _ INACTIVE state, all information of the PDCP and RLC protocol sublayers need not be configured, i.e. the two protocol entities are not established.
In the embodiment of the invention, the network side sets the SDAP configuration related information when the UE is about to enter an inactive state, establishes the SDAP in advance, and then can quickly send data (quickly corresponding the UE context and the data) when the data arrives, thereby reducing the time delay and the system overhead of sending the packet data.
In addition, the SDAP configuration related information of the embodiment of the invention omits the establishment of a packet data convergence protocol PDCP entity and the configuration of the defaultDRB, thereby reducing the complexity of flow control.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.