CN110752903B

CN110752903B - SRB mapping relation establishment method, data transmission method, data processing method, data transmission device, data processing device and data processing system

Info

Publication number: CN110752903B
Application number: CN201810818783.2A
Authority: CN
Inventors: 韩星宇; 孙军帅; 王莹莹; 黄学艳
Original assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Current assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Priority date: 2018-07-24
Filing date: 2018-07-24
Publication date: 2022-04-01
Anticipated expiration: 2038-07-24
Also published as: CN110752903A

Abstract

The invention relates to the technical field of wireless transmission, in particular to a method, a device and a system for establishing an SRB mapping relation, transmitting data and processing the data, wherein the method for establishing the SRB mapping relation comprises the following steps: receiving an RRC signaling sent by a base station, wherein the RRC signaling carries first indication information of an SRB mapping relation; and establishing an uplink mapping relation between the QoS Flow and the SRB according to the first indication information of the SRB mapping relation carried in the RRC signaling. In the invention, the data of the data plane corresponding to the QoS Flow can be transmitted on the control plane by establishing the mapping relation between the QoS Flow and the SRB, thereby realizing the data transmission of the data plane through the control plane in a 5G scene and saving a large amount of signaling overhead generated by establishing the DRB.

Description

SRB mapping relation establishment method, data transmission method, data processing method, data transmission device, data processing device and data processing system

Technical Field

The present invention relates to the field of wireless transmission technologies, and in particular, to methods, apparatuses, and systems for SRB mapping relationship establishment, data transmission, and data processing.

Background

The Data plane Data is transmitted by using the control plane, and the Data Radio Bearer (DRB) can be avoided from being established by analyzing from the perspective of the wireless side, so that a large amount of signaling overhead generated by establishing the DRB is saved, and the method and the device can be applied to a large-scale connection scene. In NB-IoT (Narrow Band Internet of Things), the data plane data transmission using the control plane has been implemented by improving the network element function and transmission flow of the core network.

According to the latest development of 3GPP (3rd Generation Partnership Project) RAN2(Radio Access Network), an SDAP (Service Data Adaptation Protocol) layer is introduced in a 5G (5th-Generation, fifth-Generation wireless communication technology) RAN architecture, and the function of the SDAP layer is to implement mapping between QoS (Quality of Service) Flow (Flow) and DRB. The QoS Flow of the SDAP layer can only perform the reception and transmission of packets by mapping to the DRB, according to the definition in the current protocol.

Therefore, in the 5G scenario, the RAN side does not yet realize that the user plane data packet is transmitted on the control plane Bearer, that is, the Signaling Radio Bearer (SRB), so how to introduce a corresponding processing mechanism into the RAN in the 5G scenario to realize that the user plane data packet is transmitted on the control plane Bearer, thereby saving a large amount of Signaling overhead generated by establishing the DRB, which is a problem of value research.

Disclosure of Invention

The invention discloses a method, a device and a system for establishing an SRB mapping relation, transmitting data and processing data, and aims to solve the problem that a control plane cannot transmit data in a 5G scene in the prior art.

In order to achieve the above object, the present invention provides a method for establishing an SRB mapping relationship, where the method includes:

receiving a Radio Resource Control (RRC) signaling sent by a base station, wherein the RRC signaling carries first indication information of an SRB mapping relation;

and establishing an uplink mapping relation between the QoS Flow and the SRB according to the first indication information of the SRB mapping relation carried in the RRC signaling.

Therefore, the UE can establish the uplink mapping relationship between the SRB and the QoS Flow according to the first indication information of the SRB mapping relationship by receiving, by the UE, the RRC signaling carrying the first indication information of the SRB mapping relationship, which is sent by the base station. Therefore, in the invention, by establishing the uplink mapping relationship between the SRB and the QoS Flow, the data plane corresponding to the QoS Flow can be transmitted on the control plane, so that the data plane can be transmitted through the control plane in a 5G scenario, and a large amount of signaling overhead generated by establishing the DRB is saved.

Specifically, if the first indication information of the SRB mapping relationship carried in the RRC signaling includes first identification information of a first SRB and second identification information of a first QoS Flow configured with a mapping relationship with the first SRB, the establishing the uplink mapping relationship between the QoS Flow and the SRB according to the first indication information of the SRB mapping relationship carried in the RRC signaling includes:

and establishing an uplink mapping relation between the first identification information of the first SRB and the second identification information of the first QoS Flow.

That is to say, if the first indication information of the SRB mapping relationship carried in the RRC signaling received by the UE includes the first identifier information of the first SRB and the second identifier information of the first QoS Flow configured with the mapping relationship with the first SRB, the UE establishes the uplink mapping relationship between the first identifier information of the first SRB and the second identifier information of the first QoS Flow, so that when the QoS Flow of the second identifier information to be transmitted exists on the UE, the UE performs uplink transmission on the control plane for the data plane data corresponding to the first QoS Flow having the second identifier information according to the established uplink mapping relationship between the first SRB and the first QoS Flow.

Specifically, if the first indication information of the SRB mapping relationship carried in the RRC signaling further includes third identification information of a default SRB, the establishing the uplink mapping relationship between the QoS Flow and the SRB according to the first indication information of the SRB mapping relationship carried in the RRC signaling includes:

and establishing an uplink mapping relation between the third identification information of the default SRB and the fourth identification information of the second QoS Flow which is not configured with the mapping relation.

By establishing the uplink mapping relationship between the third identifier information of the default SRB and the fourth identifier information of the second QoS Flow that is not configured with the mapping relationship, the UE can bear the fourth QoS Flow that is not configured with the mapping relationship based on the default SRB, so that the mapping relationship established by the default SRB can be used as a standby mapping relationship, data of the data plane corresponding to the second QoS Flow that is not configured with the mapping relationship is transmitted on the control plane, and data transmission of the data plane through the control plane in a 5G scenario can also be achieved.

Specifically, the RRC signaling further carries second indication information indicating that the UE supports the Reflective QoS function, and the method further includes:

receiving a PDCP PDU sent by a base station through a PDCP entity, and analyzing a packet header of the PDCP PDU;

if the packet header of the PDCP PDU carries data packet identification information, transmitting the SDAP PDU obtained after removing the packet header of the PDCP PDU to an SDAP layer through a target SRB corresponding to the PDCP entity, so that the SDAP layer analyzes the packet header of the SDAP PDU;

and if the RDI field in the packet header of the SDAP PDU indicates that the Reflective QoS function is started, modifying the currently stored uplink mapping relation according to the downlink mapping relation between the fifth identification information of the target SRB and the sixth identification information of the QoS Flow carried in the packet header of the SDAP PDU.

That is to say, if the RRC signaling received by the UE also carries indication information indicating that the UE supports the Reflective QoS function, and the RDI field in the header of the received SDAP PDU indicates that the Reflective QoS function is turned on, the UE modifies the currently stored uplink mapping relationship according to the mapping relationship between the sixth identification information of the QoS Flow carried in the header of the SDAP PDU and the fifth identification information of the target SRB that transmits the SDAP PDU, so that the uplink mapping relationship from the UE side QoS Flow to the SRB is consistent with the downlink mapping relationship from the base station side QoS Flow to the SRB.

According to another aspect of the present invention, there is also provided a method for establishing an SRB mapping relationship, the method including:

sending RRC signaling to UE, wherein the RRC signaling carries first indication information of SRB mapping relation;

and indicating the UE to establish the uplink mapping relation between the QoS Flow and the SRB according to the first indication information of the SRB mapping relation carried in the RRC signaling.

It can be seen from the above that, the base station sends the RRC signaling carrying the first indication information of the SRB mapping relationship to the UE, so that the UE can establish the uplink mapping relationship between the SRB and the QoS Flow, wherein, by establishing the uplink mapping relationship between the SRB and the QoS Flow, data plane data corresponding to the QoS Flow can be transmitted on the control plane, thereby implementing data plane transmission through the control plane in a 5G scenario, and saving a large amount of signaling overhead generated by establishing the DRB.

and sending the SDAP PDU to the UE, and setting an RDI field in a packet header of the SDAP PDU to indicate that a Reflective QoS function is opened.

By further carrying second indication information indicating that the UE supports the Reflective QoS function in the RRC signaling sent to the UE and setting an RDI field in a header of an SDAP PDU sent to the UE to indicate that the Reflective QoS function is started, after the UE receives the SDAP PDU, according to the mapping relation between sixth identification information of QoS Flow carried in the header of the SDAP PDU and fifth identification information of a target SRB for transmitting the SDAP PDU, the currently stored uplink mapping relation is modified, so that the uplink mapping relation from the UE side QoS Flow to the SRB is consistent with the downlink mapping relation from the base station side QoS Flow to the SRB.

Specifically, the RRC signaling is RRC connection setup signaling, or RRC connection reconfiguration signaling, or other RRC signaling.

According to another aspect of the present invention, there is also provided a data transmission method, including:

acquiring identification information of QoS Flow to be sent;

determining a target SRB having a mapping relation with the identification information of the QoS Flow according to the mapping relation between the QoS Flow and the SRB established in advance;

transmitting the SDAP PDU generated after the QoS Flow is encapsulated to a PDCP layer of a control plane through the target SRB;

and generating a PDCP PDU carrying data packet identification information according to the SDAP PDU, and sending the PDCP PDU to a receiving end.

Therefore, when the QoS Flow to be transmitted exists on the sender, the target SRB having the mapping relationship with the identification information of the QoS Flow can be determined through the mapping relationship between the QoS Flow and the SRB, which is established in advance, and data transmission is performed on the control plane for the data plane corresponding to the QoS Flow through the target SRB, so that data transmission of the data plane through the control plane in a 5G scene is realized, and not only can the time delay caused by establishing the DRB be reduced, but also a large amount of signaling overhead caused by establishing the DRB be saved.

Specifically, the data packet identification information is carried in a newly added field in a packet header of the PDCP PDU.

According to another aspect of the present invention, there is also provided a data processing method, including:

receiving a PDCP PDU sent by a sending end through a PDCP entity, and analyzing a packet header of the PDCP PDU;

if the packet header of the PDCP PDU carries the data packet identification information, transmitting the SDAP PDU obtained after removing the packet header of the PDCP PDU to an SDAP layer through an SRB corresponding to the PDCP entity, so that the SDAP layer carries out corresponding processing on the SDAP PDU.

As can be seen from the above, after receiving the PDCP PDU sent by the sending end, the PDCP entity of the receiving end can send the SDAP PDU without the header to the SDAP layer through the target SRB corresponding to the PDCP entity, so that the SDAP layer performs corresponding processing on the SDAP PDU. The process of transmitting the SDAP PDU through the target SRB is substantially the process of transmitting data of the control plane, so that the data of the data plane is transmitted through the control plane in a 5G scene, the time delay caused by the establishment of the DRB can be reduced, and a large amount of signaling overhead caused by the establishment of the DRB can be saved.

According to another aspect of the present invention, there is also provided a data transmission and processing system, the system comprising: a sending end and a receiving end;

the sending end is used for acquiring the identification information of the QoS Flow to be sent; determining a target SRB having a mapping relation with the identification information of the QoS Flow according to the mapping relation between the QoS Flow and the SRB established in advance; transmitting the SDAP PDU generated after the QoS Flow is encapsulated to a PDCP layer of a control plane through the target SRB; generating a PDCP PDU carrying data packet identification information according to the SDAP PDU, and sending the PDCP PDU to a receiving end;

the receiving end is used for receiving the PDCP PDU sent by the sending end through the PDCP entity and analyzing the packet header of the PDCP PDU; if the packet header of the PDCP PDU carries the data packet identification information, transmitting the SDAP PDU obtained after removing the packet header of the PDCP PDU to an SDAP layer through a target SRB corresponding to the PDCP entity, so that the SDAP layer carries out corresponding processing on the SDAP PDU.

Specifically, the sending end is a UE, and the receiving end is a base station, or the sending end is a base station and the receiving end is a UE.

According to another aspect of the present invention, there is also provided a terminal, including: a processor, a memory, and a transceiver;

the processor is used for reading the program in the memory and executing the following processes: receiving an RRC signaling sent by a base station through the transceiver, wherein the RRC signaling carries first indication information of an SRB mapping relation; establishing an uplink mapping relation between QoS Flow and SRB according to first indication information of the SRB mapping relation carried in the RRC signaling;

the transceiver is used for receiving and transmitting data under the control of the processor.

Specifically, if the first indication information of the SRB mapping relationship carried in the RRC signaling includes first identification information of a first SRB and second identification information of a first QoS Flow configured with a mapping relationship with the first SRB, the processor is specifically configured to establish an uplink mapping relationship between the first identification information of the first SRB and the second identification information of the first QoS Flow.

Specifically, if the first indication information of the SRB mapping relationship carried in the RRC signaling further includes third identifier information of a default SRB, the processor is specifically configured to establish an uplink mapping relationship between the third identifier information of the default SRB and fourth identifier information of a second QoS Flow that is not configured with the mapping relationship.

Specifically, the RRC signaling further carries second indication information indicating that the UE supports a Reflective QoS function, and the processor is further configured to receive, through a PDCP entity, a PDCP PDU sent by a base station, and parse a header of the PDCP PDU; if the packet header of the PDCP PDU carries data packet identification information, transmitting the SDAP PDU obtained after removing the packet header of the PDCP PDU to an SDAP layer through a target SRB corresponding to the PDCP entity, so that the SDAP layer analyzes the packet header of the SDAP PDU; and if the RDI field in the packet header of the SDAP PDU indicates that the Reflective QoS function is started, modifying the currently stored uplink mapping relation according to the downlink mapping relation between the fifth identification information of the target SRB and the sixth identification information of the QoS Flow carried in the packet header of the SDAP PDU.

In accordance with another aspect of the present invention, there is also provided a base station, including: a processor, a memory, and a transceiver;

the processor is used for reading the program in the memory and executing the following processes: sending RRC signaling to the UE through the transceiver, wherein the RRC signaling carries first indication information of SRB mapping relation; indicating the UE to establish an uplink mapping relation between QoS Flow and SRB according to first indication information of the SRB mapping relation carried in RRC signaling;

the transceiver is used for receiving and transmitting data under the control of the controller.

Specifically, the RRC signaling further carries second indication information indicating that the UE supports the Reflective QoS function, and the processor is further configured to send an SDAP PDU to the UE through the transceiver, and set an RDI field in a header of the SDAP PDU to indicate that the Reflective QoS function is turned on.

According to another aspect of the present invention, there is also provided an electronic apparatus, including: the processor, memory, and transceiver;

the processor is used for reading the program in the memory and executing the following processes: acquiring identification information of a QoS Flow to be sent through the transceiver; determining a target SRB having a mapping relation with the identification information of the QoS Flow according to the mapping relation between the QoS Flow and the SRB established in advance; transmitting the SDAP PDU generated after the QoS Flow is encapsulated to a PDCP layer of a control plane through the target SRB; generating a PDCP PDU carrying data packet identification information according to the SDAP PDU, and sending the PDCP PDU to a receiving end;

According to another aspect of the present invention, there is also provided an electronic apparatus, including: the processor and memory;

the processor is used for reading the program in the memory and executing the following processes: receiving a PDCP PDU sent by a sending end through a PDCP entity, and analyzing a packet header of the PDCP PDU; if the packet header of the PDCP PDU carries the data packet identification information, transmitting the SDAP PDU obtained after removing the packet header of the PDCP PDU to an SDAP layer through a target SRB corresponding to the PDCP entity, so that the SDAP layer carries out corresponding processing on the SDAP PDU.

According to another aspect of the present invention, there is also provided an apparatus for establishing an SRB mapping relationship, the apparatus including:

the receiving module is used for receiving an RRC signaling sent by a base station, wherein the RRC signaling carries first indication information of an SRB mapping relation;

and the establishing module is used for establishing the uplink mapping relation between the QoS Flow and the SRB according to the first indication information of the SRB mapping relation carried in the RRC signaling.

a generating module, configured to generate a radio resource control RRC signaling;

a first sending module, configured to send the RRC signaling to a UE, where the RRC signaling carries first indication information of an SRB mapping relationship; and indicating the UE to establish the uplink mapping relation between the QoS Flow and the SRB according to the first indication information of the SRB mapping relation carried in the RRC signaling.

According to another aspect of the present invention, there is also provided a data transmission apparatus, including:

the acquisition module is used for acquiring the identification information of the QoS Flow to be sent;

the determining module is used for determining a target SRB which has a mapping relation with the identification information of the QoS Flow according to the mapping relation between the QoS Flow and the signaling radio bearer SRB which is established in advance;

a transmission module, configured to transmit a service data adaptation protocol SDAP protocol data unit PDU generated after the QoS Flow is encapsulated to a packet data convergence protocol PDCP layer of a control plane through the target SRB;

and the sending module is used for generating a PDCP PDU carrying data packet identification information according to the SDAP PDU and sending the PDCP PDU to a receiving end.

According to another aspect of the present invention, there is also provided a data processing apparatus, including:

the receiving module is used for receiving a PDCP protocol data unit PDU sent by a sending end through a packet data convergence protocol PDCP entity and analyzing a packet header of the PDCP PDU;

and the transmission module is used for transmitting a service data adaptation protocol SDAP PDU (protocol data packet access protocol) obtained after the packet header of the PDCP PDU is removed to an SDAP layer through a target Signaling Radio Bearer (SRB) corresponding to the PDCP entity if the packet header of the PDCP PDU carries data packet identification information, so that the SDAP layer carries out corresponding processing on the SDAP PDU.

According to another aspect of the present invention, there is also provided a computer-readable storage medium storing a computer program executable by an electronic device, wherein when the program is run on the electronic device, the electronic device is caused to execute the steps in the above SRB mapping relationship establishing method.

According to another aspect of the present invention, there is also provided a computer-readable storage medium storing a computer program executable by an electronic device, the program causing the electronic device to perform the steps of the above-mentioned data transmission method when the program is run on the electronic device.

According to another aspect of the present invention, there is also provided a computer-readable storage medium storing a computer program executable by an electronic device, the program causing the electronic device to perform the steps of the above-mentioned data processing method when the program is run on the electronic device.

The invention has the following beneficial effects:

the invention provides a method, a device and a system for establishing an SRB mapping relation and transmitting and processing data, wherein the method for establishing the SRB mapping relation comprises the following steps: receiving an RRC signaling sent by a base station, wherein the RRC signaling carries first indication information of an SRB mapping relation; and establishing an uplink mapping relation between the QoS Flow and the SRB according to the first indication information of the SRB mapping relation carried in the RRC signaling. In the invention, the UE receives the RRC signaling which is sent by the base station and carries the first indication information of the SRB mapping relation, so that the UE can establish the uplink mapping relation between the SRB and the QoS Flow according to the first indication information of the SRB mapping relation. In the invention, the data of the data plane corresponding to the QoS Flow can be transmitted on the control plane by establishing the uplink mapping relation between the SRB and the QoS Flow, thereby realizing the data transmission of the data plane through the control plane in a 5G scene and saving a large amount of signaling overhead generated by establishing the DRB.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a flowchart of a method for establishing an SRB mapping relationship according to a first embodiment of the present invention;

fig. 2 is a flowchart of a data transmission method according to a fifth embodiment of the present invention;

fig. 3 is a flow chart of data transmission according to a fifth embodiment of the present invention;

fig. 4 is a schematic diagram of a packet header of a PDCP PDU according to a fifth embodiment of the present invention;

fig. 5 is a flowchart of a data processing method according to a sixth embodiment of the present invention;

fig. 6 is a flowchart of data processing provided in the sixth embodiment of the present invention;

fig. 7 is a flowchart of data transmission and processing provided in the seventh embodiment of the present invention;

fig. 8 is a terminal according to an eighth embodiment of the present invention;

fig. 9 is a base station according to a ninth embodiment of the present invention;

fig. 10 is an electronic device provided in a tenth embodiment of the present invention;

fig. 11 is an electronic apparatus provided in an eleventh embodiment of the invention;

fig. 12 is a block diagram of a SRB mapping relationship establishing apparatus according to a twelfth embodiment of the present invention;

fig. 13 is a block diagram of a SRB mapping relationship establishing apparatus according to a thirteenth embodiment of the present invention;

fig. 14 is a block diagram of a data transmission apparatus according to a fourteenth embodiment of the present invention;

fig. 15 is a block diagram of a data processing apparatus according to a fifteenth embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The first embodiment is as follows:

in the prior art, the user plane data is not transmitted on the control plane bearer at the access network side, and with the provision of services with strict requirements on various 5G delays and the sinking of the QoS Flow to the RAN side and the introduction of the SDAP layer, the embodiment of the present invention aims to realize the transmission of the user plane data on the control plane bearer by establishing the mapping relationship between the QoS Flow and the SRB.

Specifically, according to an aspect of the embodiments of the present invention, there is provided a method for establishing an SRB mapping relationship, as shown in fig. 1, the method includes the following steps:

step S101: and sending RRC signaling to the UE.

Step S102: and receiving RRC signaling sent by the base station.

In the embodiment of the present invention, the RRC signaling sent by the base station to the UE carries the first indication information of the SRB mapping relationship. Therefore, after receiving the RRC signaling, the UE may establish the uplink mapping relationship between the QoS Flow and the SRB according to the first indication information of the SRB mapping relationship carried in the RRC signaling, that is, the following step S103.

Specifically, in the embodiment of the present invention, the RRC signaling sent by the base station to the UE is RRC connection setup signaling, or RRC connection reconfiguration signaling, or other RRC signaling. In the embodiment of the present invention, the RRC signaling method is not specifically limited.

Step S103: and establishing an uplink mapping relation between the QoS Flow and the SRB according to the first indication information of the SRB mapping relation carried in the RRC signaling.

In the embodiment of the invention, the base station sends the RRC signaling carrying the first indication information of the SRB mapping relation to the UE, so that the UE establishes the uplink mapping relation between the QoS Flow and the SRB after receiving the RRC signaling, and when the QoS Flow to be transmitted exists on the UE, the data plane data corresponding to the QoS Flow can be transmitted on the control plane through the established uplink mapping relation between the QoS Flow and the SRB, thereby realizing the data plane transmission through the control plane in a 5G scene and saving a large amount of signaling overhead generated by the establishment of the DRB.

Because the time delay generated when the DRB is established in the prior art is large, with the provision of various services with strict time delay requirements in a 5G scenario, the time delay generated by establishing the DRB can also be reduced by establishing the uplink mapping relationship between the QoS Flow and the SRB.

Since the SRB may be a corresponding SRB selected by the base station according to the QoS parameter or the current load condition of each QoS Flow, or may be a default SRB, that is, a default SRB, agreed in advance by the base station and the UE, when the established uplink mapping relationship between the SRB and the QoS Flow is established, the SRB may be specifically established in the manner described in the following embodiments.

Example two:

if the first indication information of the SRB mapping relationship carried in the RRC signaling includes the first identification information of the first SRB and the second identification information of the first QoS Flow configured with the mapping relationship with the first SRB, it indicates that the base station has selected the SRB corresponding to the first QoS Flow according to the QoS parameter of each QoS Flow or the current load condition, and configures the mapping relationship between the QoS Flow and the corresponding SRB.

Therefore, on the basis of the foregoing embodiment, in the embodiment of the present invention, the establishing, according to the first identifier information of the SRB carried in the RRC signaling, an uplink mapping relationship between the QoS Flow and the SRB of the first identifier information includes:

In this embodiment of the present invention, the first identification information of the first SRB and the second identification information of the first QoS Flow may be ID information corresponding thereto, respectively. If the first SRB is the

first ID information

0, 1, 2, it indicates that the SRBs designated by the base station are SRBs 0, SRBs 1, and SRBs 2. If the second ID information of the first QoS Flow having a mapping relationship with the SRB0 is 1 to 10; the second ID information of the first QoS Flow having a mapping relation with the SRB1 is 11-20; the second ID information of the first QoS Flow having a mapping relationship with the SRB2 is 21-30.

Then, the uplink mapping relationship between the first identifier information of the first SRB and the second identifier information of the first QoS Flow, which is established by the UE, is: an upstream mapping between SRB0 and QoS Flow1-QoS Flow10, an upstream mapping between SRB1 and QoS Flow11-QoS Flow20, and an upstream mapping between SRB2 and QoS Flow21-QoS Flow 30.

Therefore, when the second ID information of the first QoS Flow to be transmitted existing on the UE is between 1 and 10, it is carried through the SRB 0; when the second ID information of the first QoS Flow to be transmitted existing on the UE is between 11 and 20, the UE is carried through the SRB 1; when the second ID information of the first QoS Flow existing on the UE to be transmitted is between 21-30, it is carried through SRB 2.

Therefore, in the embodiment of the present invention, by receiving, by the UE, RRC signaling carrying first identification information of a first SRB and second identification information of a first QoS Flow configured with a mapping relationship with the first SRB, the UE may be enabled to establish an uplink mapping relationship between the first identification information of the first SRB and the second identification information of the first QoS Flow accordingly, such that when there is a first QoS Flow of the second identification information to be transmitted on the UE, according to the established uplink mapping relationship between the first identification information of the first SRB and the second identification information of the first QoS Flow, the data plane data corresponding to the first QoS Flow with the second identification information is transmitted on the control plane in an uplink mode, therefore, the data plane data is transmitted through the control plane in the 5G scene, so that the time delay caused by the establishment of the DRB can be reduced, and a large amount of signaling overhead caused by the establishment of the DRB can be saved.

Example three:

when the uplink mapping relationship between the first identification information of the first SRB and the second identification information of the first QoS Flow is established, if there is a second QoS Flow for which the mapping relationship is not established, or after the uplink mapping relationship between the first identification information of the first SRB and the second identification information of the first QoS Flow is established, a new QoS Flow is identified in the subsequent data transmission process. Therefore, to further implement uplink transmission on data plane data corresponding to the QoS Flow on the control plane, on the basis of the foregoing embodiment, in the embodiment of the present invention, if the first indication information of the SRB mapping relationship carried in the RRC signaling further includes third identification information of a default SRB, and establishing the uplink mapping relationship between the QoS Flow and the SRB according to the first indication information of the SRB mapping relationship carried in the RRC signaling includes:

If the third ID information of the default SRB carried in the RRC signaling is 4, it indicates that the default SRB specified by the base station is the SRB 4. The UE actively establishes a mapping relationship with the fourth identification information of the second QoS Flow, which is not configured with the mapping relationship, based on the default SRB.

The second QoS Flow without mapping relationship configuration may be a new QoS Flow recognized by the UE during transmission, or a second QoS Flow without mapping relationship configuration when the uplink mapping relationship between the first identifier of the first SRB and the second identifier of the first QoS Flow is established.

Due to the above, by establishing the uplink mapping relationship between the third identifier information of the default SRB and the fourth identifier information of the second QoS Flow that is not configured with the mapping relationship, the UE can carry the fourth QoS Flow that is not configured with the mapping relationship based on the default SRB. Therefore, the mapping relationship established by the default SRB can be used as a standby mapping relationship, and is used for further implementing transmission of data plane data corresponding to the second QoS Flow without the mapping relationship on the control plane when the second QoS Flow without the mapping relationship is present, so that data plane data can also be transmitted through the control plane in a 5G scenario.

It should be noted that, in the embodiment of the present invention, the default SRB may also be a certain SRB determined by a pre-agreement between the base station and the UE, so that the manner of determining the default SRB is not specifically limited in the embodiment of the present invention.

Example four:

after the uplink mapping relationship between QoS Flow and SRB is established, in order to modify the currently stored uplink mapping relationship, on the basis of the foregoing embodiment, in this embodiment of the present invention, the RRC signaling further carries second indication information indicating that the UE supports a Reflective QoS function, where the Reflective QoS function enables the UE to support modifying the currently stored uplink mapping relationship, as shown in fig. 1, the method further includes:

step S104: sending the SDAP PDU to the UE.

Wherein the RDI field in the header of the SDAP PDU can be used to indicate that the Reflective QoS function of the UE is turned on. In practical applications, when the RDI field is set to 1, the Reflective QoS function is indicated to be turned on.

Specifically, when the base station sends a downlink QoS Flow to the UE, the QoS Flow is encapsulated in the SDAP PDU, and then the SDAP PDU is carried by the SRB having a mapping relationship with the QoS Flow, and sent to the PDCP layer of the control plane, so that the PDCP layer of the control plane further encapsulates the SDAP PDU. Because the SDAP PDU is a data packet, after the SDAP PDU is encapsulated by the PDCP layer, the PDCP PDU with the data packet identifier is generated and sent to the PDCP layer of the control surface of the UE side.

When the PDCP layer of the control plane at the UE side receives the PDCP PDU sent by the base station, the method further includes:

step S105: and receiving the PDCP PDU sent by the base station through the PDCP entity, and analyzing the packet header of the PDCP PDU.

Step S106: if the packet header of the PDCP PDU carries the data packet identification information, transmitting the SDAP PDU obtained after removing the packet header of the PDCP PDU to an SDAP layer through a target SRB corresponding to the PDCP entity, so that the SDAP layer analyzes the packet header of the SDAP PDU.

Step S107: and if the RDI field in the packet header of the SDAP PDU indicates that the Reflective QoS function is started, modifying the currently stored uplink mapping relation according to the downlink mapping relation between the fifth identification information of the target SRB and the sixth identification information of the QoS Flow carried in the packet header of the SDAP PDU.

The PDCP layers of the base station side and the UE side comprise a plurality of PDCP entities, and the PDCP entities with the same ID information have corresponding relation. That is, in case that the PDCP entity from which the base station side transmits the PDCP PDU is the PDCP1, the PDCP entity from which the UE side receives the PDCP PDU is also the PDCP 1.

Therefore, after receiving the PDCP PDU sent by the base station, the PDCP entity of the control plane at the UE side first parses the header of the PDCP PDU, and if the header of the PDCP PDU carries the data packet identification information, the SRB corresponding to the PDCP entity that receives the PDCP PDU is used as the target SRB, and the SDAP PDU obtained after removing the header of the PDCP PDU is transmitted to the SDAP layer through the target SRB, and the SDAP layer further processes the SDAP PDU.

After receiving the SDAP PDU, the SDAP layer may further parse the packet header of the SDAP PDU, and if the RDI field in the packet header of the SDAP PDU is set to 1, it indicates that the refresh QoS function is enabled, and at this time, the UE may further obtain sixth ID information of QoS Flow carried in the QFI field in the packet header of the SDAP PDU, and modify the currently stored uplink mapping relationship according to a downlink mapping relationship used when the QoS Flow is sent by the base station, that is, a mapping relationship between the sixth ID information of QoS Flow carried in the QFI field and the fifth ID information of the target SRB.

The above-mentioned process of using the Reflective QoS function to modify the currently stored uplink mapping relationship according to the downlink mapping relationship when the base station sends the downlink QoS Flow may refer to the specification of the DRB in section 5.3.2 in 3GPP TS37.324 V1.6.0, that is, the SRB is mapped in the same manner as the DRB.

Therefore, it can be seen from the foregoing that, in the embodiment of the present invention, the UE receives the second indication information carrying the indication that the UE supports the Reflective QoS function, so that the UE can modify the currently stored uplink mapping relationship according to the downlink mapping relationship when the base station sends the downlink QoS Flow, so as to perform flexible mapping between the QoS Flow and the SRB.

Example five:

on the basis of the foregoing embodiment, according to another aspect of the embodiment of the present invention, there is further provided a data transmission method, as shown in fig. 2, the method including:

step S201: and acquiring the identification information of the QoS Flow to be sent.

Step S202: and determining a target SRB having a mapping relation with the identification information of the QoS Flow according to the mapping relation between the QoS Flow and the SRB established in advance.

Step S203: and transmitting the SDAP PDU generated after the QoS Flow is encapsulated to a PDCP layer of a control plane through the target SRB.

Step S204: and generating a PDCP PDU carrying data packet identification information according to the SDAP PDU, and sending the PDCP PDU to a receiving end.

That is, as shown in fig. 3, when the SDAP layer receives the QoS Flow to be sent, first, a target SRB having a mapping relationship with the identification information of the QoS Flow is determined according to the mapping relationship between the QoS Flow and the SRB stored currently.

When determining the target SRB having the mapping relationship with the identification information of the QoS Flow, if the identification information of the QoS Flow is the second identification information corresponding to the first QoS Flow configured with the mapping relationship in the second embodiment, the target SRB is determined according to the uplink mapping relationship between the first identification information of the first SRB and the second identification information of the first QoS Flow. If the identification information of the QoS Flow is the fourth identification information corresponding to the second QoS Flow which is not configured with the mapping relationship in the third embodiment, the default SRB is determined as the target SRB.

After determining the target SRB, the SDAP layer encapsulates the QoS Flow to be transmitted, and transmits the SDAP PDU generated by encapsulation to the PDCP layer of the control plane through the target SRB, and the PDCP layer of the control plane encapsulates the received SDAP PDU again to generate a PDCP PDU, and transmits the PDCP PDU to the receiving end through a bottom Radio Interface (Radio Interface).

Since the PDCP layer of the control plane is generally used to transmit a signaling packet, when the PDCP layer of the control plane receives an SDAP PDU, to facilitate a receiving end to distinguish and subsequently process the received PDCP PDU, an indication field for distinguishing a data packet from a signaling packet may be added to a header of the generated PDCP PDU by the PDCP layer of the control plane. The header of the PDCP PDU is shown in fig. 4, where the name of the indication field for distinguishing the Data packet from the Signaling packet is S/D (Signaling/Data), specifically, when the S/D field is set to 1, the header can be used to identify the PDCP PDU as the Data packet, and when the S/D field is set to 0, the header can be used to identify the PDCP PDU as the Signaling packet. Of course, it may also be used to identify the PDCP PDU as a data packet when the S/D field is set to 0, and identify the PDCP PDU as a signaling packet when the S/D field is set to 1.

It should be noted that, in the embodiment of the present invention, the length of the indication field for distinguishing the data packet from the signaling packet, the specific location in the packet header of the PDCP PDU, and the name of the indication field are not specifically limited, so that in the embodiment of the present invention, only the function is limited. In addition, regarding other fields or information except for the S/D field in fig. 4, reference may be made to the related description in 3GPP TS38.323, and therefore, the description thereof is not repeated herein.

As can be seen from the above, in the embodiment of the present invention, when the QoS Flow to be transmitted exists on the sender, the data plane data corresponding to the QoS Flow can be transmitted on the control plane through the mapping relationship between the QoS Flow and the SRB, which is established in advance, so that the data plane data is transmitted through the control plane in a 5G scenario, which can reduce the time delay caused by establishing the DRB, and save a large amount of signaling overhead caused by establishing the DRB.

It should be noted that, in fig. 3, the RLC is a radio link control layer, the MAC is a medium access control layer, and the PHY is a physical layer. In fig. 3, a signaling packet sent by the control plane PDCP layer/RLC layer, or a data packet of the data plane PDCP layer/RLC layer, may specifically refer to the related description in 3GPP TS38.300 in the process of transmitting to the bottom layer Radio Interface through the MAC layer/PHY layer, and therefore, the description thereof is not repeated herein.

Example six:

on the basis of the foregoing embodiment, according to another aspect of the embodiment of the present invention, there is further provided a data processing method, as shown in fig. 5, the method including:

step S501: and receiving the PDCP PDU sent by the sending end through the PDCP entity, and analyzing the packet header of the PDCP PDU.

Step S502: if the packet header of the PDCP PDU carries the data packet identification information, transmitting the SDAP PDU obtained after removing the packet header of the PDCP PDU to an SDAP layer through an SRB corresponding to the PDCP entity, so that the SDAP layer carries out corresponding processing on the SDAP PDU.

That is, as shown in fig. 6, the bottom layer Radio Interface sends the received PDCP PDU to the PDCP layer of the control plane of the receiving end, after receiving the PDCP PDU, the PDCP layer of the control plane first analyzes the header of the PDCP PDU, if the S/D field in the header of the PDCP PDU is set to 0, it indicates that the PDCP PDU is a signaling packet, or when the S/D field in the header of the PDCP PDU is set to 1, it also indicates that the PDCP PDU is a signaling packet, and at this time, the PDCP layer transmits the PDCP PDU to the RRC layer for corresponding processing.

And if the S/D field is set to 1 in the header of the PDCP PDU, it indicates that the PDCP PDU is a data packet, or if the S/D field is set to 0 in the header of the PDCP PDU, it also indicates that the PDCP PDU is a data packet, at this time, the receiving end will use the SRB corresponding to the PDCP entity receiving the PDCP PDU as the target SRB, and transmit the obtained SDAP PDU after removing the header of the PDCP PDU to the SDAP layer through the target SRB, and the SDAP layer further processes the SDAP PDU.

Therefore, it can be seen from the above that, in the embodiment of the present invention, after receiving a PDCP PDU sent by a sending end, if a packet header of the PDCP PDU carries data packet identification information, a PDCP layer of a receiving end control plane transmits, to an SDAP layer, an SDAP PDU obtained after removing the packet header of the PDCP PDU through an SRB corresponding to the receiving end of the PDCP PDU, so that the SDAP layer performs corresponding processing on the SDAP PDU. The process of transmitting the SDAP PDU through the target SRB is substantially the process of transmitting data of the control plane, so that the data of the data plane is transmitted through the control plane in a 5G scene, the time delay caused by the establishment of the DRB can be reduced, and a large amount of signaling overhead caused by the establishment of the DRB can be saved.

It should be noted that, in fig. 6, a process of the bottom layer Radio Interface sending a received signaling packet to the control plane PDCP layer/RLC layer through the MAC layer/PHY layer, or sending a received data packet to the data plane PDCP layer/RLC layer through the MAC layer/PHY layer may specifically refer to the related description in 3GPP TS38.300, and therefore, details are not described here again.

Example seven:

on the basis of the foregoing embodiment, in an embodiment of the present invention, according to another aspect of the embodiment of the present invention, there is further provided a data transmission and processing system, including: a sending end and a receiving end;

Fig. 7 shows a specific Flow of data transmission between the sending end and the receiving end, and since the process of sending the QoS Flow by the sending end has already been described in the sixth embodiment and the process of processing the received QoS Flow by the receiving end has also been described in the seventh embodiment, a description thereof will not be repeated in the embodiment of the present invention.

It should be further noted that, in the embodiment of the present invention, the sending end is a UE, and the receiving end is a base station, or the sending end is a base station and the receiving end is a UE. That is, when the transmitting end is a UE, the corresponding receiving end is a base station, and when the transmitting end is a base station, the corresponding receiving end is a UE.

Example eight:

on the basis of the foregoing embodiment, in an embodiment of the present invention, according to another aspect of the embodiment of the present invention, there is provided a terminal, as shown in fig. 8, where the terminal includes: a processor 801, a memory 802, and a transceiver 803.

In FIG. 8, the bus architecture may include any number of interconnected buses and bridges, with one or more processors represented by processor 801 and various circuits of memory represented by memory 802 being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The transceiver 803 may be a plurality of elements including a transmitter and a receiver providing a means for communicating with various other apparatus over a transmission medium. The processor 801 is responsible for managing the bus architecture and general processing, and the memory 802 may store data used by the processor 801 in performing operations.

Alternatively, the processor 801 may be a CPU (central processing unit), an ASIC (Application Specific Integrated Circuit), an FPGA (Field Programmable Gate Array), or a CPLD (Complex Programmable Logic Device).

The processor 801 is configured to read the program in the memory 802, and execute the following processes: receiving, by the transceiver 803, an RRC signaling sent by a base station, where the RRC signaling carries first indication information of an SRB mapping relationship; establishing an uplink mapping relation between QoS Flow and SRB according to first indication information of the SRB mapping relation carried in the RRC signaling;

the transceiver 803 is used for receiving and transmitting data under the control of the processor 801.

Specifically, if the first indication information of the SRB mapping relationship carried in the RRC signaling includes first identification information of a first SRB and second identification information of a first QoS Flow configured with a mapping relationship with the first SRB, the processor 801 is specifically configured to establish an uplink mapping relationship between the first identification information of the first SRB and the second identification information of the first QoS Flow.

Specifically, if the first indication information of the SRB mapping relationship carried in the RRC signaling further includes third identifier information of a default SRB, the processor 801 is specifically configured to establish an uplink mapping relationship between the third identifier information of the default SRB and fourth identifier information of a second QoS Flow that is not configured with the mapping relationship.

Specifically, the RRC signaling further carries second indication information indicating that the UE supports a Reflective QoS function, and the processor 801 is further configured to receive, through a PDCP entity, a PDCP PDU sent by a base station, and parse a header of the PDCP PDU; if the packet header of the PDCP PDU carries data packet identification information, transmitting the SDAP PDU obtained after removing the packet header of the PDCP PDU to an SDAP layer through a target SRB corresponding to the PDCP entity, so that the SDAP layer analyzes the packet header of the SDAP PDU; and if the RDI field in the packet header of the SDAP PDU indicates that the Reflective QoS function is started, modifying the currently stored uplink mapping relation according to the downlink mapping relation between the fifth identification information of the target SRB and the sixth identification information of the QoS Flow carried in the packet header of the SDAP PDU.

Example nine:

on the basis of the foregoing embodiments, in an embodiment of the present invention, according to another aspect of the embodiments of the present invention, there is provided a base station, as shown in fig. 9, where the base station includes: a processor 901, a memory 902, and a transceiver 903.

In fig. 9, the bus architecture may include any number of interconnected buses and bridges, with one or more processors, represented by processor 901, and various circuits, represented by memory 902, linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The transceiver 903 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium. The processor 901 is responsible for managing a bus architecture and general processing, and the memory 902 may store data used by the processor 901 in performing operations.

Alternatively, the processor 901 may be a CPU (central processing unit), an ASIC (Application Specific Integrated Circuit), an FPGA (Field Programmable Gate Array), or a CPLD (Complex Programmable Logic Device).

The processor 901 is configured to read the program in the memory 902 and execute the following processes: sending an RRC signaling to the UE through the transceiver 903, where the RRC signaling carries first indication information of an SRB mapping relationship; indicating the UE to establish an uplink mapping relation between QoS Flow and SRB according to first indication information of the SRB mapping relation carried in RRC signaling;

the transceiver 903 is configured to receive and transmit data under the control of the controller 901.

Specifically, the RRC signaling further carries second indication information indicating that the UE supports the Reflective QoS function, and the processor 901 is further configured to send an SDAP PDU to the UE through the transceiver, and set an RDI field in a header of the SDAP PDU to indicate that the Reflective QoS function is turned on.

Example ten:

on the basis of the foregoing embodiment, in an embodiment of the present invention, according to another aspect of the embodiment of the present invention, there is provided an electronic apparatus, as shown in fig. 10, the electronic apparatus including: the processor 1001, the memory 1002, and the transceiver 1003.

In fig. 10, the bus architecture may include any number of interconnected buses and bridges, with one or more processors, represented by the processor 1001, and various circuits, represented by the memory 1002, being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The transceiver 1003 may be a number of elements including a transmitter and a receiver, providing a means for communicating with various other apparatus over a transmission medium. The processor 1001 is responsible for managing the bus architecture and general processing, and the memory 1002 may store data used by the processor 1001 in performing operations.

Alternatively, the processor 1001 may be a CPU (central processing unit), an ASIC (Application Specific Integrated Circuit), an FPGA (Field Programmable Gate Array), or a CPLD (Complex Programmable Logic Device).

The processor 1001 is configured to read a program in the memory 1002 and execute the following processes: acquiring identification information of a QoS Flow to be transmitted through the transceiver 1003; determining a target SRB having a mapping relation with the identification information of the QoS Flow according to the mapping relation between the QoS Flow and the SRB established in advance; transmitting the SDAP PDU generated after the QoS Flow is encapsulated to a PDCP layer of a control plane through the target SRB; generating a PDCP PDU carrying data packet identification information according to the SDAP PDU, and sending the PDCP PDU to a receiving end;

the transceiver 1003 is configured to receive and transmit data under the control of the controller 1001.

Example eleven:

on the basis of the foregoing embodiment, in an embodiment of the present invention, according to another aspect of the embodiment of the present invention, there is provided an electronic apparatus, as shown in fig. 11, the electronic apparatus including: the processor 1101 and a memory 1102.

In FIG. 11, the bus architecture may include any number of interconnected buses and bridges, with one or more processors, represented by processor 1101, and various circuits of memory, represented by memory 1102, being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein.

Alternatively, the processor 1101 may be a CPU (central processing unit), an ASIC (Application Specific Integrated Circuit), an FPGA (Field Programmable Gate Array), or a CPLD (Complex Programmable Logic Device).

The processor 1101 is configured to read the program in the memory 1102 and execute the following processes: receiving a PDCP PDU sent by a sending end through a PDCP entity, and analyzing a packet header of the PDCP PDU; if the packet header of the PDCP PDU carries the data packet identification information, transmitting the SDAP PDU obtained after removing the packet header of the PDCP PDU to an SDAP layer through a target SRB corresponding to the PDCP entity, so that the SDAP layer carries out corresponding processing on the SDAP PDU.

Example twelve:

on the basis of the foregoing embodiment, in an embodiment of the present invention, according to another aspect of the embodiment of the present invention, there is further provided an SRB mapping relationship establishing apparatus, as shown in fig. 12, the apparatus includes:

a receiving module 1201, configured to receive an RRC signaling sent by a base station, where the RRC signaling carries first indication information of an SRB mapping relationship;

the establishing module 1202 is configured to establish an uplink mapping relationship between a QoS Flow and an SRB according to the first indication information of the SRB mapping relationship carried in the RRC signaling.

Specifically, the establishing module 1202 is specifically configured to establish an uplink mapping relationship between the first identifier information of the first SRB and the second identifier information of the first QoS Flow, where the first indicator information of the SRB mapping relationship carried in the RRC signaling includes the first identifier information of the first SRB and the second identifier information of the first QoS Flow configured with a mapping relationship with the first SRB.

Specifically, the mapping module 1202 is further specifically configured to establish an uplink mapping relationship between the third identifier information of the default SRB and the fourth identifier information of the second QoS Flow that is not configured with the mapping relationship, if the first indication information of the SRB mapping relationship carried in the RRC signaling further includes the third identifier information of the default SRB.

Specifically, the RRC signaling further carries second indication information indicating that the UE supports the Reflective QoS function, and the apparatus further includes:

an analysis module 1203, configured to receive, by a PDCP entity, a PDCP protocol data unit PDU sent by a base station, and analyze a packet header of the PDCP PDU;

a determining module 1204, configured to transmit, if the packet header of the PDCP PDU carries data packet identification information, the obtained SDAP PDU after removing the packet header of the PDCP PDU to an SDAP layer through a target SRB corresponding to the PDCP entity, so that the SDAP layer parses the packet header of the SDAP PDU;

a modifying module 1205, configured to modify the currently stored uplink mapping relationship according to the downlink mapping relationship between the fifth identification information of the target SRB and the sixth identification information of the QoS Flow carried in the header of the SDAP PDU, if the RDI field in the header of the SDAP PDU indicates that the Reflective QoS function is enabled.

Example thirteen:

on the basis of the foregoing embodiment, in an embodiment of the present invention, according to another aspect of the embodiment of the present invention, there is further provided an SRB mapping relationship establishing apparatus, as shown in fig. 13, the apparatus includes:

a generating module 1301, configured to generate an RRC signaling;

a first sending module 1302, configured to send an RRC signaling to the UE, where the RRC signaling carries first indication information of an SRB mapping relationship; and indicating the UE to establish the uplink mapping relation between the QoS Flow and the SRB according to the first indication information of the SRB mapping relation carried in the RRC signaling.

Specifically, if the RRC signaling further carries indication information indicating that the UE supports the Reflective QoS function, the apparatus further includes:

a second sending module 1303, configured to send an SDAP PDU to the UE, and set an RDI field in a packet header of the SDAP PDU to indicate that a Reflective QoS function is turned on.

Example fourteen:

on the basis of the foregoing embodiments, in an embodiment of the present invention, according to another aspect of the embodiments of the present invention, there is provided a data transmission apparatus, as shown in fig. 14, the apparatus including:

an obtaining module 1401, configured to obtain identification information of a QoS Flow to be sent;

a determining module 1402, configured to determine, according to a mapping relationship between a QoS Flow and an SRB that is established in advance, a target SRB having a mapping relationship with identification information of the QoS Flow;

a transmission module 1403, configured to transmit, through the target SRB, the SDAP PDU generated after the QoS Flow is encapsulated to the PDCP layer of the control plane;

a sending module 1404, configured to generate a PDCP PDU carrying data packet identification information according to the SDAP PDU, and send the PDCP PDU to a receiving end.

Example fifteen:

on the basis of the foregoing embodiments, in an embodiment of the present invention, according to another aspect of the embodiment of the present invention, there is also provided a data processing apparatus, as shown in fig. 15, the apparatus including:

a receiving module 1501, configured to generate a PDCP PDU carrying data packet identification information according to the SDAP PDU, and send the PDCP PDU to a receiving end;

a transmission module 1502, configured to transmit, to an SDAP layer through an SRB corresponding to the PDCP entity if a packet header of the PDCP PDU carries data packet identification information, the obtained SDAP PDU after removing the packet header of the PDCP PDU, so that the SDAP layer performs corresponding processing on the QoS Flow;

example sixteen:

on the basis of the foregoing embodiments, in an embodiment of the present invention, according to another aspect of the embodiments of the present invention, there is further provided a computer-readable storage medium storing a computer program executable by an electronic device, and when the program is run on the electronic device, the electronic device is caused to perform the steps in the above SRB mapping relationship establishing method:

The computer readable storage medium in the above embodiments may be any available medium or data storage device that can be accessed by a processor in an electronic device, including but not limited to magnetic memory such as floppy disks, hard disks, magnetic tape, magneto-optical disks (MOs), etc., optical memory such as CDs, DVDs, BDs, HVDs, etc., and semiconductor memory such as ROMs, EPROMs, EEPROMs, non-volatile memory (NAND FLASH), Solid State Disks (SSDs), etc.

Example seventeen:

Example eighteen:

acquiring identification information of QoS Flow to be sent;

Example nineteenth:

if the packet header of the PDCP PDU carries the data packet identification information, transmitting the SDAP PDU obtained after removing the packet header of the PDCP PDU to an SDAP layer through a target SRB corresponding to the PDCP entity, so that the SDAP layer carries out corresponding processing on the SDAP PDU.

For the system/apparatus embodiments, since they are substantially similar to the method embodiments, the description is relatively simple, and reference may be made to some descriptions of the method embodiments for relevant points.

It is to be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or operation from another entity or operation without necessarily requiring or implying any actual such relationship or order between such entities or operations.

As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely application embodiment, or an embodiment combining application and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all alterations and modifications as fall within the scope of the application.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims

1. A Signaling Radio Bearer (SRB) mapping relationship establishment method is characterized by comprising the following steps:

and establishing an uplink mapping relation between the QoSFlow and the SRB according to the first indication information of the SRB mapping relation carried in the RRC signaling.

2. The method of claim 1, wherein if the first indication information of the SRB mapping relationship carried in the RRC signaling includes first identification information of a first SRB and second identification information of a first QoS Flow configured with a mapping relationship with the first SRB, the establishing the uplink mapping relationship between the QoSFlow and the SRB according to the first indication information of the SRB mapping relationship carried in the RRC signaling includes:

3. The method according to claim 1 or 2, wherein if the first indication information of the SRB mapping relationship carried in the RRC signaling further includes third identification information of a default defaultSRB, the establishing the uplink mapping relationship between QoSFlow and SRB according to the first indication information of the SRB mapping relationship carried in the RRC signaling comprises:

4. The method of claim 1, wherein the RRC signaling further carries second indication information indicating that the UE supports Reflective QoS functionality, and wherein the method further comprises:

receiving a PDCP Protocol Data Unit (PDU) sent by a base station through a Packet Data Convergence Protocol (PDCP) entity, and analyzing a packet header of the PDCP PDU;

if the packet header of the PDCP PDU carries data packet identification information, transmitting a Service Data Adaptation Protocol (SDAP) PDU obtained after removing the packet header of the PDCP PDU to an SDAP layer through a target SRB corresponding to the PDCP entity, so that the SDAP layer analyzes the packet header of the SDAP PDU;

5. A Signaling Radio Bearer (SRB) mapping relationship establishment method is characterized by comprising the following steps:

sending a Radio Resource Control (RRC) signaling to UE, wherein the RRC signaling carries first indication information of SRB mapping relation;

and indicating the UE to establish the uplink mapping relation between the QoSFlow and the SRB according to the first indication information of the SRB mapping relation carried in the RRC signaling.

6. The method of claim 5, wherein the RRC signaling further carries second indication information indicating that the UE supports Reflective QoS (quality of service) functionality, the method further comprising:

and sending a service data adaptation protocol SDAP protocol data unit PDU to the UE, and setting an RDI field in a packet header of the SDAP PDU to indicate that a Reflective QoS function is started.

7. The method of claim 5 or 6, wherein the RRC signaling is RRC connection setup signaling or RRC connection reconfiguration signaling.

8. A method of data transmission, the method comprising:

acquiring identification information of a quality of service (QoS) Flow to be sent;

determining a target SRB having a mapping relation with the identification information of the QoS Flow according to the mapping relation between the QoS Flow and the signaling radio bearer SRB established in advance;

transmitting a service data adaptation protocol SDAP protocol data unit PDU generated after the QoS Flow is encapsulated to a packet data convergence protocol PDCP layer of a control plane through the target SRB;

9. The method of claim 8, wherein the packet identification information is carried in a new field in a header of the PDCP PDU.

10. A method of data processing, the method comprising:

receiving a PDCP Protocol Data Unit (PDU) sent by a sending end through a Packet Data Convergence Protocol (PDCP) entity, and analyzing a packet header of the PDCP PDU;

if the packet header of the PDCP PDU carries data packet identification information, transmitting a service data adaptation protocol SDAPPDU (protocol data application protocol data unit) obtained after the packet header of the PDCP PDU is removed to an SDAP (data description protocol application protocol) layer through a target Signaling Radio Bearer (SRB) corresponding to the PDCP entity, so that the SDAP layer carries out corresponding processing on the SDAPPDU;

before the receiving, by the packet data convergence protocol PDCP entity, the PDCP protocol data unit PDU sent by the sending end, the method further includes:

receiving a Radio Resource Control (RRC) signaling which is sent by a base station and carries first indication information of the SRB mapping relation, and establishing an uplink mapping relation between the quality of service flow QoSFlow and the SRB according to the first indication information of the SRB mapping relation.

11. A data transmission and processing system, the system comprising: a sending end and a receiving end;

the sending end is used for acquiring the identification information of the QoS Flow to be sent; determining a target SRB having a mapping relation with the identification information of the QoS Flow according to the mapping relation between the QoS Flow and the signaling radio bearer SRB established in advance; transmitting a service data adaptation protocol SDAP protocol data unit PDU generated after the QoS Flow is encapsulated to a packet data convergence protocol PDCP layer of a control plane through the target SRB; generating a PDCP PDU carrying data packet identification information according to the SDAP PDU, and sending the PDCP PDU to a receiving end;

the receiving end is used for receiving PDCP PDUs sent by the sending end through the PDCP entity and analyzing packet headers of the PDCP PDUs; if the packet header of the PDCP PDU carries the data packet identification information, transmitting the SDAPPDU obtained after removing the packet header of the PDCP PDU to an SDAP layer through a target SRB corresponding to the PDCP entity, so that the SDAP layer carries out corresponding processing on the SDAPPDU.

12. The system of claim 11, wherein the transmitting end is a UE and the receiving end is a base station, or the transmitting end is a base station and the receiving end is a UE.

13. A terminal, characterized in that the terminal comprises: a processor, a memory, and a transceiver;

the processor is used for reading the program in the memory and executing the following processes: receiving a Radio Resource Control (RRC) signaling sent by a base station through the transceiver, wherein the RRC signaling carries first indication information of a Signaling Radio Bearer (SRB) mapping relation; establishing an uplink mapping relation between the QoSFlow and the SRB according to first indication information of the SRB mapping relation carried in the RRC signaling;

14. The terminal according to claim 13, wherein if the first indication information of the SRB mapping relationship carried in the RRC signaling includes first identification information of a first SRB and second identification information of a first QoS Flow configured with a mapping relationship with the first SRB, the processor is specifically configured to establish an uplink mapping relationship between the first identification information of the first SRB and the second identification information of the first QoS Flow.

15. The terminal according to claim 13 or 14, wherein if the first indication information of the SRB mapping relationship carried in the RRC signaling further includes third identifier information of a default SRB, the processor is specifically configured to establish an uplink mapping relationship between the third identifier information of the default SRB and fourth identifier information of a second QoS Flow that is not configured with a mapping relationship.

16. The terminal of claim 13, wherein the RRC signaling further carries second indication information indicating that the UE supports a Reflective QoS function, and the processor is further configured to receive a PDCP protocol data unit PDU sent by a base station through a packet data convergence protocol PDCP entity, and parse a header of the PDCP PDU; if the packet header of the PDCP PDU carries data packet identification information, transmitting a Service Data Adaptation Protocol (SDAP) PDU obtained after removing the packet header of the PDCP PDU to an SDAP layer through a target SRB corresponding to the PDCP entity, so that the SDAP layer analyzes the packet header of the SDAP PDU; and if the RDI field in the packet header of the SDAP PDU indicates that the Reflective QoS function is started, modifying the currently stored uplink mapping relation according to the downlink mapping relation between the fifth identification information of the target SRB and the sixth identification information of the QoS Flow carried in the packet header of the SDAP PDU.

17. A base station, characterized in that the base station comprises: a processor, a memory, and a transceiver;

the processor is used for reading the program in the memory and executing the following processes: sending a Radio Resource Control (RRC) signaling to the UE through the transceiver, wherein the RRC signaling carries first indication information of a Signaling Radio Bearer (SRB) mapping relation; indicating the UE to establish an uplink mapping relation between the QoSFlow and the SRB according to first indication information of the SRB mapping relation carried in the RRC signaling;

18. The base station of claim 17, wherein the RRC signaling further carries second indication information indicating that the UE supports a Reflective QoS function, and wherein the processor is further configured to send a service data adaptation protocol, SDAP, protocol data unit, PDU, to the UE through the transceiver, and set an RDI field in a header of the SDAP PDU to indicate that the Reflective QoS function is turned on.

19. The base station of claim 17, wherein the RRC signaling is RRC connection setup signaling or RRC connection reconfiguration signaling.

20. An electronic device, characterized in that the electronic device comprises: a processor, a memory, and a transceiver;

the processor is used for reading the program in the memory and executing the following processes: acquiring identification information of a QoS Flow to be sent through the transceiver; determining a target SRB having a mapping relation with the identification information of the QoS Flow according to the mapping relation between the QoS Flow and the signaling radio bearer SRB established in advance; transmitting a service data adaptation protocol SDAP protocol data unit PDU generated after the QoS Flow is encapsulated to a packet data convergence protocol PDCP layer of a control plane through the target SRB; generating a PDCP PDU carrying data packet identification information according to the SDAP PDU, and sending the PDCP PDU to a receiving end;

21. An electronic device, characterized in that the electronic device comprises: a processor and a memory;

the processor is used for reading the program in the memory and executing the following processes: receiving a PDCP Protocol Data Unit (PDU) sent by a sending end through a Packet Data Convergence Protocol (PDCP) entity, and analyzing a packet header of the PDCP PDU; if the packet header of the PDCP PDU carries data packet identification information, transmitting a service data adaptation protocol SDAPPDU (protocol data application protocol data unit) obtained after the packet header of the PDCP PDU is removed to an SDAP (data description protocol application protocol) layer through a target Signaling Radio Bearer (SRB) corresponding to the PDCP entity, so that the SDAP layer carries out corresponding processing on the SDAPPDU; before the receiving, by the packet data convergence protocol PDCP entity, the PDCP protocol data unit PDU sent by the sending end, the method further includes: receiving a Radio Resource Control (RRC) signaling which is sent by a base station and carries first indication information of the SRB mapping relation, and establishing an uplink mapping relation between the quality of service flow QoSFlow and the SRB according to the first indication information of the SRB mapping relation.

22. An apparatus for Signaling Radio Bearer (SRB) mapping relationship establishment, the apparatus comprising:

a receiving module, configured to receive a radio resource control RRC signaling sent by a base station, where the RRC signaling carries first indication information of an SRB mapping relationship;

and the establishing module is used for establishing the uplink mapping relation between the QoSFlow and the SRB according to the first indication information of the SRB mapping relation carried in the RRC signaling.

23. An apparatus for Signaling Radio Bearer (SRB) mapping relationship establishment, the apparatus comprising:

a first sending module, configured to send the RRC signaling to a UE, where the RRC signaling carries first indication information of an SRB mapping relationship; and indicating the UE to establish the uplink mapping relation between the QoSFlow and the SRB according to the first indication information of the SRB mapping relation carried in the RRC signaling.

24. A data transmission apparatus, characterized in that the apparatus comprises:

25. A data processing apparatus, characterized in that the apparatus comprises:

a receiving module, configured to receive a radio resource control RRC signaling that is sent by a base station and carries first indication information of a SRB mapping relationship, establish an uplink mapping relationship between a qos flow QoSFlow and a SRB according to the first indication information of the SRB mapping relationship, receive, by a packet data convergence protocol PDCP entity, a PDCP protocol data unit PDU sent by a sending end, and analyze a packet header of the PDCP PDU;

and the transmission module is used for transmitting a service data adaptation protocol SDAPPDU (protocol data packet adapter protocol data packet) obtained after the packet header of the PDCP PDU is removed to an SDAP (data packet protocol application protocol) layer through a target Signaling Radio Bearer (SRB) corresponding to the PDCP entity if the packet header of the PDCP PDU carries data packet identification information, so that the SDAP layer carries out corresponding processing on the SDAPPDU.

26. A computer-readable storage medium, characterized in that it stores a computer program executable by an electronic device, which program, when run on the electronic device, causes the electronic device to carry out the steps of the method according to any one of claims 1-4.

27. A computer-readable storage medium, characterized in that it stores a computer program executable by an electronic device, which program, when run on the electronic device, causes the electronic device to carry out the steps of the method of any of claims 5-7.

28. A computer-readable storage medium, characterized in that it stores a computer program executable by an electronic device, which program, when run on the electronic device, causes the electronic device to carry out the steps of the method of any of claims 8-9.

29. A computer-readable storage medium, in which a computer program is stored which is executable by an electronic device, and which, when run on the electronic device, causes the electronic device to carry out the steps of the method as claimed in claim 10.