CN114364060B - Method for improving air interface data bearing configuration efficiency - Google Patents
Method for improving air interface data bearing configuration efficiency Download PDFInfo
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Abstract
The invention relates to a method for improving the allocation efficiency of air interface data bearing, which comprises the following steps: step S1, a core network sends PDU session configuration information to an NR base station; step S2, the NR base station sends RRC reconfiguration information to the user equipment, wherein the RRC reconfiguration information carries one or a plurality of pieces of data bearing configuration information; step S3, the user equipment performs data bearing configuration and outputs RRC reconfiguration completion information; step S4, judging whether the data bearer is successfully configured, if the data bearer is completely configured to be failed, the user equipment sends an RRC reestablishment request to the NR base station, and entering step S6; otherwise, the user equipment replies a reconfiguration complete message to the NR base station, and the step S5 is entered; step S5, the NR base station distinguishes the data bearing information of the configuration failure and the data bearing information of the configuration success; and S6, the NR base station replies a data bearing configuration result to the core network, and enables the successfully configured data bearing. The invention saves air interface resources, improves the air interface data bearing configuration efficiency and improves the service use experience of users.
Description
Technical Field
The invention relates to the technical field of information, in particular to a method for improving the configuration efficiency of air interface data bearing.
Background
In a 3GPP wireless 5G NR (New Radio) system protocol, a scheme for air interface data bearer configuration is defined: as shown in fig. 1, after receiving a data bearer configuration parameter sent by an NR base station, a UE (User Equipment) performs checksum application on the parameter, and if all the parameters are successfully applied, returns an RRC reconfiguration complete message to the NR base station; if the parameters are not all successfully applied, or the reconfiguration process is terminated, an RRC reestablishment request is sent to the NR base station, and an air interface reconfiguration process is initiated.
However, when there are multiple configurations of data bearers in one RRC reconfiguration message, if a portion of the data bearers are successfully configured and another portion of the data bearers are not successfully configured, the UE initiates a reconfiguration procedure at this time, so that the NR base station cannot identify which data bearers are configured to fail, and the portion of the data bearers that are configured to be successful cannot be used, and need to be reconfigured after the reconfiguration procedure is completed. The method can bring waste of air interface resources, reduce air interface data bearing configuration efficiency and influence service use experience of 5G users.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a method for improving the configuration efficiency of air interface data bearing, which can enable an NR base station to accurately identify the data bearing with failure configuration, improve the configuration efficiency of the air interface data bearing and improve the service use experience of 5G users.
The invention provides a method for improving the allocation efficiency of air interface data bearing, which comprises the following steps:
step S1, a core network establishes PDU session information and transmits PDU session configuration information to an NR base station;
step S2, the NR base station sends RRC reconfiguration information to the user equipment according to PDU session configuration information, wherein the RRC reconfiguration information carries one or a plurality of pieces of data bearing configuration information;
step S3, the user equipment carries out data bearing configuration according to the RRC reconfiguration message and outputs an RRC reconfiguration completion message;
step S4, judging whether all data bearers are configured to fail according to the RRC reconfiguration completion message, if so, the user equipment sends an RRC reestablishment request to the NR base station, and the step S6 is entered; otherwise, the user equipment replies a reconfiguration complete message to the NR base station, and the step S5 is entered;
step S5, the NR base station distinguishes the successfully configured data bearing information according to the RRC reestablishment request or the reconfiguration completion message replied by the user equipment;
and S6, the NR base station replies the successfully configured data bearing information to the core network, and enables the successfully configured data bearing.
Further, the RRC reconfiguration complete message includes a data bearer addition/modification list, a data bearer deletion list, a data bearer addition/modification failure list, and a data bearer deletion failure list.
Further, the method for judging whether the data bearer is successfully configured in step S4 is as follows:
if the data bearer addition/modification failure list and the data bearer deletion failure list are both empty, all data bearers are successfully configured;
if the data bearer addition/modification failure list comprises part of the data bearer IDs in the data bearer addition/modification list and/or the data bearer deletion failure list comprises part of the data bearer IDs in the data bearer deletion list, the data bearer configuration is successful;
if the data bearer addition/modification failure list includes all data bearer IDs in the data bearer addition/modification list and the data bearer deletion failure list includes all data bearer IDs in the data bearer deletion list, all configuration of the data bearers fails.
The invention adds the data bearing adding/modifying failure list and the data bearing deleting failure list in the RRC reconfiguration completion message, is used for the user equipment to feed back the data bearing with configuration failure to the NR base station, can reduce the probability of the user equipment reconstruction, saves air interface resources, is beneficial to improving the air interface data bearing configuration efficiency and improves the service use experience of users.
Drawings
Fig. 1 is a flow chart of a prior art hollow data bearing configuration.
Fig. 2 is a flow chart of a method of improving efficiency of air interface data bearer configuration in accordance with the present invention.
Detailed Description
Preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 2, the method for improving the configuration efficiency of air interface data bearer provided by the present invention includes the following steps:
step S1, the core network establishes PDU session information and transmits PDU session configuration information to the NR base station. The PDU session configuration information comprises PDU session establishment, PDU session modification and PDU session deletion.
Step S2, the NR base station sends RRC reconfiguration information to the user equipment according to the PDU session configuration information, wherein the RRC reconfiguration information carries one or a plurality of pieces of data bearer configuration information to be configured.
Step S3, the user equipment performs the application of data bearing configuration according to the RRC reconfiguration message and outputs an RRC reconfiguration complete message (namely an RRCRECONfigure complete message). The RRC reconfiguration complete message includes a data bearer addition/modification list (i.e., DRB-addrodadlist), a data bearer deletion list (i.e., DRB-failderelease list), a data bearer addition/modification failure list (i.e., DRB-faildeddmodlist), and a data bearer deletion failure list (i.e., DRB-failderelease list).
The data bearer adding/modifying list stores data bearer adding/modifying messages and corresponding data bearer IDs in all data bearer configuration information, and the data bearer deleting list stores data bearer deleting messages and corresponding data bearer IDs in all data bearer configuration information. Therefore, the data bearer addition/modification list and the data bearer deletion list are unchanged before and after the application of the data bearer configuration, and remain unchanged. The data bearer addition/modification failure list stores all the data bearer IDs of the addition/modification failures, and the data bearer deletion failure list stores all the data bearer IDs of the deletion failures. The initial states of the data bearer addition/modification failure list and the data bearer deletion failure list are empty, and change or remain unchanged according to the application situation after the application of the data bearer configuration is performed.
Step S4, judging whether all data bearers are configured to fail according to the RRC reconfiguration completion message, if yes, the user equipment sends an RRC reestablishment request to the NR base station, initiates a reestablishment flow and enters step S6; otherwise, the ue replies an RRC reconfiguration complete message to the NR base station, and proceeds to step S5.
The method for judging whether the data bearer is successfully configured comprises the following steps: if the data bearer addition/modification failure list and the data bearer deletion failure list are both empty, the data bearers are configured successfully; if the data bearer addition/modification failure list comprises part of the data bearer IDs in the data bearer addition/modification list and/or the data bearer deletion failure list comprises part of the data bearer IDs in the data bearer deletion list, the data bearer part is configured successfully; if the data bearer addition/modification failure list includes all data bearer IDs in the data bearer addition/modification list and the data bearer deletion failure list includes all data bearer IDs in the data bearer deletion list, then all configuration of the data bearers fails.
Step S5, the NR base station distinguishes the successfully configured data bearing information according to the RRC reestablishment request or the reconfiguration completion message replied by the user equipment. The data carrying information corresponding to the data carrying characteristics in the data carrying addition/modification failure list and/or the data carrying deletion failure list is the data carrying information of the configuration failure.
And S6, the NR base station replies the successfully configured data bearing information to the core network, and enables the successfully configured data bearing.
Aiming at the problem that an NR base station cannot accurately identify which data bearer configuration fails when a plurality of data bearers are simultaneously configured in the 3GPP 38.331 protocol, two optional cells are added in an RRC reconfiguration completion message: the data bearer addition/modification failure list and the data bearer deletion failure list are used for the user equipment to feed back the data bearers with configuration failure to the NR base station, so that the probability of user equipment reconstruction can be reduced, air interface resources can be saved, the air interface data bearer configuration efficiency can be improved, and the service use experience of a user can be improved.
The foregoing description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and various modifications can be made to the above-described embodiment of the present invention. All simple, equivalent changes and modifications made in accordance with the claims and the specification of this application fall within the scope of the patent claims. The present invention is not described in detail in the conventional art.
Claims (1)
1. A method for improving efficiency of air interface data bearer configuration, comprising:
step S1, a core network establishes PDU session information and transmits PDU session configuration information to an NR base station;
step S2, the NR base station sends RRC reconfiguration information to the user equipment according to PDU session configuration information, wherein the RRC reconfiguration information carries one or a plurality of pieces of data bearing configuration information;
step S3, the user equipment carries out data bearing configuration according to the RRC reconfiguration message and outputs an RRC reconfiguration completion message, wherein the RRC reconfiguration completion message comprises a data bearing adding/modifying list, a data bearing deleting list, a data bearing adding/modifying failure list and a data bearing deleting failure list;
step S4, judging whether all data bearers are configured to fail according to the RRC reconfiguration completion message, if so, the user equipment sends an RRC reestablishment request to the NR base station, and the step S6 is entered; otherwise, the user equipment replies a reconfiguration complete message to the NR base station, and the step S5 is entered;
the method for judging whether the data bearer is successfully configured comprises the following steps:
if the data bearer addition/modification failure list and the data bearer deletion failure list are both empty, all data bearers are successfully configured;
if the data bearer addition/modification failure list comprises part of the data bearer IDs in the data bearer addition/modification list and/or the data bearer deletion failure list comprises part of the data bearer IDs in the data bearer deletion list, the data bearer configuration is successful;
if the data bearer addition/modification failure list comprises all data bearer IDs in the data bearer addition/modification list and the data bearer deletion failure list comprises all data bearer IDs in the data bearer deletion list, all data bearer configuration fails;
step S5, the NR base station distinguishes the successfully configured data bearing information according to the RRC reestablishment request or the reconfiguration completion message replied by the user equipment;
and S6, the NR base station replies the successfully configured data bearing information to the core network, and enables the successfully configured data bearing.
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