CN111818567B

CN111818567B - Data processing method, device, related equipment and storage medium

Info

Publication number: CN111818567B
Application number: CN201910286707.6A
Authority: CN
Inventors: 孙军帅; 王莹莹; 黄学艳; 韩星宇
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: 2019-04-10
Filing date: 2019-04-10
Publication date: 2022-12-06
Anticipated expiration: 2039-04-10
Also published as: CN111818567A

Abstract

The invention discloses a data processing method, a data processing device, related equipment and a storage medium. The method comprises the following steps: receiving data of a first quality of service flow (QoS flow) from a core network; determining a first user group corresponding to the first QoS flow; the first user group comprises at least two terminals; respectively sending the data of the first QoS flow to at least two terminals in the first user group; and/or, receiving data from the first terminal; determining a second user group where the first terminal is located; the second user group comprises at least two terminals; determining a second QoS flow corresponding to the second user group; and sending the received data of the first terminal to a core network based on the second QoS flow.

Description

Data processing method and device, related equipment and storage medium

Technical Field

The present invention relates to the field of wireless communications, and in particular, to a data processing method, apparatus, related device, and storage medium.

Background

At present, diversified business modes are introduced into a fifth Generation mobile communication (5g, fifth Generation) system, and meanwhile, a 5G network realizes the internet of everything. At present, data transmitted at Ng interfaces of a 5G core network and a radio access network are all for one terminal, so that the 5G network cannot provide a cell-level service, and further cannot meet user requirements.

Disclosure of Invention

In order to solve the existing technical problem, embodiments of the present invention provide a data processing method, an apparatus, related devices, and a storage medium.

The embodiment of the invention provides a data processing method, which comprises the following steps:

receiving data of a first Quality of Service (QoS) flow from a core network; determining a first user group corresponding to the first QoS flow; the first user group comprises at least two terminals; respectively sending the data of the first QoS flow to at least two terminals in the first user group; and/or the presence of a gas in the gas,

receiving data from a first terminal; determining a second user group where the first terminal is located; the second user group comprises at least two terminals; determining a second QoS flow corresponding to the second user group; and sending the received data of the first terminal to a core network based on the second QoS flow.

In the above solution, the sending the data of the first QoS flow to at least two terminals in the first user group respectively includes:

a Service Data Adaptation Protocol (SDAP) entity of the base station determines a wireless Data Bearer (DRB) corresponding to the first QoS flow; and mapping the data of the first QoS flow to the determined DRB and sending the data of the first QoS flow to at least two terminals in the first user group.

In the foregoing solution, the method further includes:

and after a Packet Data Convergence Protocol (PDCP) entity of the base station determines that the Data transmission on the DRB is finished, clearing the PDCP SN of the PDCP SDU transmitted on the DRB.

In the above scheme, the first user group is formed by all terminals in a cell; and/or the second user group consists of all terminals in one cell.

In the foregoing solution, at least two terminals receiving the data of the first QoS flow are partial terminals of the first user group, and the method further includes:

receiving a user list sent by the core network;

determining at least two terminals receiving data of a first QoS flow based on the user list;

and sending the data of the first QoS flow to the determined at least two terminals.

In the foregoing solution, the determining a second QoS flow corresponding to the second user group includes:

the SDAP entity of the base station determines a DRB which is corresponding to the second user group and bears the data of the first terminal; and determines a second QoS flow mapped by the DRB.

In the above scheme, the method further comprises:

and performing DRB configuration corresponding to the first user group and the second user group respectively before data receiving and sending.

In the above scheme, the method further comprises:

a Radio Resource Control (RRC) entity of the base station generates a first RRC message; the first RRC message carries the DRB configuration corresponding to the first user group; transmitting the first RRC message to terminals of the first user group; and/or the RRC entity of the base station generates a second RRC message; the second RRC message carries the DRB configuration corresponding to the second user group; and sending the second RRC message to the terminals of the second user group.

In the above scheme, the method further comprises:

after the cell is established, the SDAP entity of the base station establishes the mapping relation between the first QoS flow and the DRB; and/or after the cell is established, the SDAP entity of the base station establishes the mapping relation between the second QoS flow and the DRB.

An embodiment of the present invention provides a data processing apparatus, where the apparatus includes:

a first receiving unit, configured to receive data of a first QoS flow from a core network;

a first determining unit, configured to determine a first user group corresponding to the first QoS flow; the first user group comprises at least two terminals;

a first sending unit, configured to send the data of the first QoS flow to at least two terminals in the first user group, respectively;

and/or the presence of a gas in the gas,

a second receiving unit for receiving data from the first terminal;

a second determining unit, configured to determine a second user group where the first terminal is located; the second user group comprises at least two terminals; determining a second QoS flow corresponding to the second user group;

and a second sending unit, configured to send the received data of the first terminal to a core network based on the second QoS flow.

In the above solution, the apparatus further includes:

the SDAP entity unit is used for determining a DRB corresponding to the first QoS flow; mapping the data of the first QoS flow to the determined DRB and sending the data of the first QoS flow to at least two terminals in the first user group; and/or an SDAP entity unit, configured to determine a DRB carrying data of the first terminal corresponding to the second user group; and determines a second QoS flow mapped by the DRB.

In the above scheme, the apparatus further comprises:

a PDCP entity unit, configured to clear PDCP SNs of PDCP SDUs transmitted on the DRB after determining that data transmission on the DRB is completed.

In the foregoing solution, the first receiving unit is further configured to receive a user list sent by the core network;

correspondingly, the first determining unit is further configured to determine, based on the user list, at least two terminals receiving data of a first QoS flow; the first sending unit is further configured to send the data of the first QoS flow to the determined at least two terminals.

In the above scheme, the apparatus further comprises:

and a configuration unit, configured to perform DRB configuration corresponding to the first user group and the second user group respectively before data transmission and reception.

In the above solution, the apparatus further includes:

an RRC entity unit, configured to generate a first RRC message; the first RRC message carries the DRB configuration corresponding to the first user group; transmitting the first RRC message to terminals of the first user group; and/or an RRC entity unit, configured to generate a second RRC message; the second RRC message carries the DRB configuration corresponding to the second user group; and sending the second RRC message to the terminals of the second user group.

In the above solution, the SDAP entity unit is further configured to establish a mapping relationship between the first QoS flow and the DRB after the cell is established; and/or the SDAP entity unit is further used for establishing the mapping relation between the second QoS flow and the DRB after the cell is established.

An embodiment of the present invention provides a base station, where the base station includes: a processor and a communication interface;

the communication interface is used for receiving data of a first QoS flow from a core network;

the processor is configured to determine a first user group corresponding to the first QoS flow; the first user group comprises at least two terminals;

the communication interface is further configured to send data of the first QoS flow to at least two terminals in the first user group, respectively;

and/or the presence of a gas in the gas,

the communication interface is used for receiving data from the first terminal;

the processor is configured to determine a second user group where the first terminal is located; the second user group comprises at least two terminals; determining a second QoS flow corresponding to the second user group;

and the communication interface is further configured to send the received data of the first terminal to a core network based on the second QoS flow.

In the above scheme, the SDAP entity of the base station determines, through the processor, a DRB corresponding to the first QoS flow; mapping the data of the first QoS flow onto the determined DRB through the communication interface and sending the data of the first QoS flow to at least two terminals in the first user group; or, the SDAP entity of the base station determines, by the processor, a DRB carrying data of the first terminal corresponding to the second user group; and determines a second QoS flow mapped by the DRB.

In the above scheme, the PDCP entity unit of the base station clears the PDCP SN of the PDCP SDU transmitted on the DRB after determining, by the processor, that the data transmission on the DRB is completed.

In the foregoing solution, the processor is further configured to perform DRB configuration corresponding to the first user group and the second user group respectively before receiving the data.

In the above solution, the RRC entity unit of the base station generates a first RRC message through the processor; the first RRC message carries the DRB configuration corresponding to the first user group; transmitting the first RRC message to terminals of the first user group through the communication interface; and/or the RRC entity unit of the base station generates a second RRC message through the processor; the second RRC message carries a DRB configuration corresponding to the second user group; and sending the second RRC message to the terminals of the second user group through the communication interface.

In the above solution, after the cell is established, the SDAP entity of the base station establishes the mapping relationship between the first QoS flow and the DRB through the processor; and/or after the cell is established, the SDAP entity of the base station establishes the mapping relation between the second QoS flow and the DRB through the processor.

An embodiment of the present invention provides a base station, including: a processor and a memory for storing a computer program capable of running on the processor,

wherein the processor is configured to execute the steps of any of the data processing methods described above when running the computer program.

An embodiment of the present invention provides a storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of any of the data processing methods described above.

The data processing method, the data processing device, the related equipment and the storage medium provided by the embodiment of the invention receive data of a first QoS flow from a core network; determining a first user group corresponding to the first QoS flow; the first user group comprises at least two terminals; respectively sending the data of the first QoS flow to at least two terminals in the first user group; and/or, receiving data from the first terminal; determining a second user group where the first terminal is located; the second user group comprises at least two terminals; determining a second QoS flow corresponding to the second user group; and sending the received data of the first terminal to a core network based on the second QoS flow. By adopting the scheme provided by the embodiment of the invention, the data of the first QoS flow is transmitted at the Ng interface of the core network and the wireless access network, and the base station realizes the purpose of sending the data of the first QoS flow to at least two terminals in the first user group by determining the first user group of the first QoS flow. It can be seen that the first QoS flow transmitted at the Ng interface between the core network and the radio access network is for at least two terminals, and the 5G network can be provided with a function of providing a cell-level service through the first QoS flow.

Drawings

Fig. 1 is a diagram illustrating an Ng interface for transmitting UE-level data in the related art;

FIG. 2 is a schematic flow chart of an implementation of a data processing method according to an embodiment of the present invention;

FIG. 3 is a schematic flow chart of an implementation of a data processing method according to an embodiment of the present invention;

fig. 4 is a schematic diagram of the Ng interface transmitting cell-level data according to the embodiment of the present invention;

FIG. 5 is a schematic diagram of a data processing apparatus according to an embodiment of the present invention;

FIG. 6 is a schematic diagram of a data processing apparatus according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a base station according to an embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the drawings and examples.

Currently, the Ng interface between the core network of 5G and the radio access network transmits data via QoS flow. According to the definition of the SDAP protocol of the current L2 layer, the SDAP entity of the base station maps the QoS flow to the DRB for transmitting and receiving the data packet. The DRB is specific to one ue, as defined by the current RRC protocol of L2 layer, in other words, each QoS flow is user level. According to the definition of current PDU Session, each QoS flow belongs to one PDU Session, each DRB belongs to one PDU Session, and one UE can have not less than one PDU Session. To sum up, currently, in the Ng interface, the transmission of data packets is for the UE, or UE level, as shown in fig. 1.

In addition, diversified service modes are introduced into the 5G, and meanwhile, the 5G wireless network realizes the universal interconnection, which means that objects served by the whole 5G wireless network are diversified, so that the 5G network is also a basic function for providing cell-level service. For example, when inquiring the water meter, the 5G wireless network may simultaneously transmit the same command data for reporting the water meter usage record to all receiving terminals in the cell, and the data transmission needs to have the characteristics of security, reliability, exclusivity or pertinence, in other words, only to all users or part of users in the cell, but not to a specific user. For another example, when the internet of things node needs to update the software version, the network side issues the uniform network version to each physical network node.

Based on this, in the embodiment of the present invention, data of a first QoS flow from a core network is received; determining a first user group corresponding to the first QoS flow; the first user group comprises at least two terminals; respectively sending the data of the first QoS flow to at least two terminals in the first user group; and/or, receiving data from the first terminal; determining a second user group where the first terminal is located; the second user group comprises at least two terminals; determining a second QoS flow corresponding to the second user group; and sending the received data of the first terminal to a core network based on the second QoS flow.

An embodiment of the present invention provides a data processing method, which is applied to a base station, and as shown in fig. 2, the method includes:

step 201: data is received from a first QoS flow of a core network.

Here, in the 5G system, the base station may be a next generation node B (gNB).

Here, the base station may receive data of a first QoS flow from a core network through an Ng interface.

Step 202: determining a first user group corresponding to the first QoS flow; the first group of users includes at least two terminals.

The first user group may be formed by all terminals in one cell, or may be formed by all terminals in a plurality of cells. When the first user group is composed of all terminals in one cell, the first QoS flow may be referred to as a cell-level QoS flow.

Here, in practical application, taking the example of transmitting cell-level data at a connection interface between a core network and a radio access network, after receiving data of a first QoS flow from the core network, the base station needs to determine a first user group corresponding to the first QoS flow. Wherein, the data of the user group level may refer to data for at least two terminals, not data for only one terminal; the at least two terminals may belong to one cell or may belong to different cells.

Step 203: and respectively sending the data of the first QoS flow to at least two terminals in the first user group.

When the first user group is composed of all terminals in a cell, the data of the first QoS flow may be a common message simultaneously sent to all users in the cell, or a common message sent to some users in the cell.

For example, when the data of the first QoS flow is a common message simultaneously sent to all users of the cell, the base station may send the data of the first QoS flow to all terminals in the first user group respectively; when the data of the first QoS flow is a common message sent to some users in the cell, the base station may send the data of the first QoS flow to some terminals in the first user group respectively.

Based on this, when the at least two terminals receiving the data of the first QoS flow are part of the terminals of the first user group, in an embodiment, the method further includes: receiving a user list sent by the core network; determining at least two terminals receiving data of a first QoS flow based on the user list; and sending the data of the first QoS flow to the determined at least two terminals.

When the at least two terminals receiving the data of the first QoS flow are part of the terminals of the first user group, in an embodiment, the method further includes: receiving a user list sent by the core network; determining at least two terminals receiving data of a first QoS flow based on the user list; and sending the data of the first QoS flow to the determined at least two terminals.

In practical application, in order to realize compatibility with the existing Layer 2 (L2, layer 2) protocol stack function, the QoS flow and the DRB of the user group level are mapped one to one, that is, the QoS flow of one user group level can be and can only be mapped to one DRB for carrying.

Based on this, in an embodiment, the sending the data of the first QoS flow to at least the terminals in the first user group respectively includes: the SDAP entity of the base station determines the DRB corresponding to the first QoS flow; and mapping the data of the first QoS flow to the determined DRB and sending the data of the first QoS flow to at least two terminals in the first user group.

Here, before the SDAP entity of the base station maps the data of the first QoS flow to the determined DRB and sends the data of the first QoS flow to at least two terminals in the first user group, the layer 2 entity of the base station may process the data of the first QoS flow, and the specific process may include:

the SDAP entity of the base station takes the data of the first QoS flow as an SDAP service data unit SDU, and encapsulates the SDAP SDU to obtain a SPAP protocol data unit PDU; the PDCP entity of the base station compresses an IP packet header of a network interconnection protocol of the SPAP PDU to obtain a compressed PDCP SDU, and encapsulates the PDCP SDU to obtain the PDCP PDU; a radio link control protocol (RCL) entity of the base station carries out segmentation and/or series connection processing on the PDCP PDU to obtain processed RLC SDU, and the RLC SDU is encapsulated to obtain RLC PDU; and the MAC entity of the base station packages the RLC PDU to obtain the MAC PDU and sends the MAC PDU to the at least two terminals.

In practical applications, in order to ensure security, the PDCP entity of the base station may set the PDCP SN of the PDCP SDU transmitted on the DRB to zero after determining that data transmission on the DRB is completed.

Based on this, in an embodiment, the method further comprises: and after the PDCP entity of the base station determines that the data transmission on the DRB is finished, clearing the PDCP SN of the PDCP SDU transmitted on the DRB.

Specifically, the PDCP entity of the base station may perform zero clearing on the PDCP SN according to a fixed period, for example, if it is assumed that data transmission on the DRB takes 10 seconds, the PDCP entity of the base station may perform position resetting on the PDCP SN every 10 seconds; or, the PDCP entity of the base station determines that the data transmitted on the DRB is for multiple terminals, and then determines that the data transmission on the DRB is completed, and performs position zeroing on the PDCP SNs; or, if the PDCP entity of the base station determines that the interval time between two adjacent data transmitted on the DRB is longer, the PDCP entity of the base station determines that the PDCP SN is reset to zero within the interval time after the data transmission on the DRB is completed.

In actual application, in order to implement QoS bearer at a user group level, after a cell is established, a mapping relationship between QoS flow and DRB corresponding to a first user group needs to be established.

Based on this, in an embodiment, the method may further include:

and after the cell is established, the SDAP entity of the base station establishes the mapping relation between the first QoS flow and the DRB.

For example, in practical application, the SDAP entity of the base station may establish a mapping relationship between the first QoS flow and the DRB according to the QoS parameter obtained from the core network and the QoS ID in the packet header received from the core network.

It should be noted that, in the embodiment of the present invention, after a cell is established, a mapping relationship between a first QoS flow at a user group level and a DRB at the user group level is directly established, and it is not necessary to wait for a terminal to access the cell, so that QoS bearer at the user group level can be implemented.

In actual application, after the cell is established, the base station may further perform DRB configuration on the first user group, for example, configure QoS parameters of QoS flow carried on a DRB.

Based on this, in an embodiment, the method may further include: and performing DRB configuration corresponding to the first user group before sending data to a terminal.

Here, the DRB configuration of the first user group may be specified according to the service requirement and the characteristics of radio coverage that the cell needs to provide. For example, the QoS parameter of the QoS flow carried on the DRB of the first user group may be specified according to whether the cell has a requirement that the core network needs to send cell-level data.

In actual application, after the DRB configuration corresponding to the first user group is completed, the base station may carry the DRB configuration of the first user group in an RRC signaling generated by an RRC entity of the base station, and send the DRB configuration to all terminals included in the first user group.

Based on this, in an embodiment, the method further comprises:

an RRC entity of the base station generates a first RRC message; the first RRC message carries DRB configuration corresponding to the first user group;

and the RRC entity sends the first RRC message to the terminals of the first user group.

In an actual application, the first RRC message may be an RRC connection reconfiguration message or the like.

In practical application, after the cell is established, in order to realize cell-level data transmission at the Ng interfaces of the core network and the radio access network, the base station further needs to establish a PDU session of a corresponding user group with the core network.

Based on this, in an embodiment, the method further comprises: and establishing the PDU session corresponding to the first user group with a core network.

By adopting the scheme provided by the embodiment of the invention, in the downlink direction, the Ng interfaces of the core network and the wireless access network transmit the data of the first QoS flow, and the base station realizes the purpose of sending the data of the first QoS flow to at least two terminals in the first user group by determining the first user group of the first QoS flow. It can be seen that the first QoS flow transmitted at the Ng interface between the core network and the radio access network is for at least two terminals, and the 5G network can be provided with a function of providing a cell-level service through the first QoS flow.

In addition, in the embodiment of the present invention, a data transmission channel of the first QoS flow is established among the core network, the radio access network, and the terminals, so that the base station can simultaneously transmit the data of the first QoS flow to the at least two terminals, that is, multicast transmission of the cell-level QoS flow data can be realized.

An embodiment of the present invention provides a data processing method applied to a base station, and as shown in fig. 3, the method includes:

step 301: data from a first terminal is received.

In practical application, after receiving the data of the first terminal, the base station may further obtain the identification information of the first terminal.

Step 302: determining a second user group where the first terminal is located; the second user group comprises at least two terminals; and determining a second QoS flow corresponding to the second user group.

Here, the base station may store a correspondence between a user group and a terminal identifier included in the user group, so that, after receiving the data of the first terminal, the base station may acquire identifier information of the first terminal, and determine a second user group corresponding to the first terminal by using the correspondence between the user group and the terminal identifier included in the user group.

In practical application, a plurality of terminals may use the same DRB to send data to the base station, so that after receiving the data of the first terminal, the base station needs to determine the DRB corresponding to the first terminal and determine a route from the DRB to the QoS flow, so as to transmit the data of the first terminal to the core network through the found QoS flow.

Based on this, in an embodiment, the determining the second QoS flow corresponding to the second user group includes: the SDAP entity of the base station determines a DRB corresponding to the second user group and bearing the data of the first terminal; and determines a second QoS flow mapped by the DRB.

Step 303: and sending the received data of the first terminal to a core network based on the second QoS flow.

Here, the base station may send the data of the first terminal, which is carried by the second QoS flow, to the core network through the Ng interface.

In practical application, the base station may receive data sent by multiple terminals, and the multiple terminals may belong to different user groups. The process of the first base station sending the data of the first terminal to the core network based on the second QoS flow may include:

the MAC entity of the base station takes the data sent by the multiple terminals as MAC PDU, and decapsulates the MAC PDU to obtain MAC SDU; wherein the plurality of terminals may belong to different user groups. The RLC entity of the base station decapsulates the MAC SDU to obtain the RLC SDU, reorders the obtained RLC SDU, and recombines the reordered RLC SDU to obtain the RLC SDU corresponding to the first terminal; the PDCP entity of the base station decapsulates the RLC SDU to obtain the PDCP SDU; decompressing the ROHC packet header of the PDCP SDU to obtain decompressed PDCP SDU; the SDAP entity of the base station unpacks the decompressed PDCP SDU to obtain the SDAP SDU; and taking the SDAP SDU as the data loaded by the second QoS flow.

In actual application, in order to implement QoS bearer at a user group level, after a cell is established, a mapping relationship between QoS flow and DRB corresponding to a second user group needs to be established.

Based on this, in an embodiment, the method may further include:

and after the cell is established, the SDAP entity of the base station establishes the mapping relation between the second QoS flow and the DRB.

For example, the SDAP entity of the base station may establish a mapping relationship between the second QoS flow and the DRB according to the QoS parameter obtained from the core network and the QoS ID in the packet header received from the core network.

It should be noted that, in the embodiment of the present invention, after the cell is established, the mapping relationship between the first QoS flow of the user group level and the DRB of the user group level is directly established, and it is not necessary to wait for the terminal to access the cell, so that the QoS bearer of the user group level can be implemented.

In practical application, after the cell is established, the base station may further perform DRB configuration on the second user group, for example, configure QoS parameters of QoS flow carried on a DRB.

Based on this, in an embodiment, the method further comprises: and performing DRB configuration corresponding to the second user group respectively before receiving the data of the terminal.

Here, the DRB configuration of the second user group may be specified according to the service requirement and the characteristics of radio coverage that the cell needs to provide. For example, the QoS parameter of the QoS flow carried by the DRB of the second user group may be specified according to whether the cell has a need for the core network to send cell-level data.

In actual application, after the DRB configuration corresponding to the second user group is completed, the base station may carry the DRB configuration of the second user group in an RRC signaling generated by an RRC entity of the base station, and send the DRB configuration to all terminals included in the second user group.

Based on this, in an embodiment, the method may further include:

the RRC entity of the base station generates a second RRC message; the second RRC message carries the DRB configuration corresponding to the second user group;

and the RRC entity sends the second RRC message to the terminals of the second user group.

In an actual application, the second RRC message may be an RRC connection reconfiguration message or the like.

In practical application, when the Ng interfaces of the core network and the radio access network transmit cell-level data, the base station further needs to establish a PDU session of a corresponding user group with the core network in order to realize multicast transmission of the data through the core network.

Based on this, in an embodiment, the method further comprises: and establishing a PDU session corresponding to the second user group with a core network.

By adopting the scheme provided by the embodiment of the invention, the base station can determine the second user group where the first terminal is located in the uplink direction, so that the base station can transmit the data of the first terminal at the Ng interface of the core network and the wireless access network through the second QoS flow corresponding to the second user group. It can be seen that the second QoS flow transmitted at the Ng interface of the core network and the radio access network is for at least two terminals.

The following describes the characteristics of the QoS flow at the cell level and the protocol stack function of Layer 2 (L2, layer 2) in detail with reference to the schematic diagram of the Ng interface for transmitting the QoS flow at the cell level shown in fig. 4, specifically as follows:

the characteristics of the cell-level QoS flow may specifically include:

first, the cell-level QoS flow transmitted by the Ng interface is not specific to a specific user, and is only specific to the user accessed in the local cell. The cell-level QoS flow is established simultaneously with the cell, changed simultaneously, deleted simultaneously, and does not need to have handover capability.

Secondly, the cell-level QoS flow transmitted on the Ng interface is a basic data transmission unit. Each QoS flow belongs to a PDU Session at a cell level. A cell may have multiple QoS flows and cell-level data may use different QoS flows depending on the QoS requirements of each type of data. Generally, one cell may establish one PDU Session. The data transmitted on each QoS flow of the cell-level PDU Session may be a common message simultaneously sent to all users in the cell, or a common message sent to some users in the cell.

And thirdly, establishing the QoS flow and PDU Session of the cell level after the cell is established. When the cell level QoS flow needs to be modified, the cell may be reconfigured.

Here, in practical application, after a cell is established, if the cell is not activated, the terminal cannot access the cell; if the cell is activated, the terminal can access the cell. Specifically, if the base station configures the state of the established cell to be active, when the terminal needs to access the cell, the terminal may scan the central frequency point after powering on, and receive the system message broadcast by the base station at the scanned central frequency point, thereby implementing access to the cell. The system message may be a main system Information Block (MIB) message or the like. It should be noted that, in practical application, the base station may further configure the state of the established cell as blocking (Block), that is, the cell is not activated, so that no terminal can access the cell.

When the cell-level QoS flow needs to be modified, the base station may perform a "cell reconfiguration" procedure on the established cell.

And fourthly, the cell-level QoS flow only serves the cell, and each cell has the cell-level QoS flow serving the cell. The cell-level QoS flow persists from cell setup to cell deletion.

Fifthly, configuring the QoS flow of a cell level in an NgAP protocol of the Ng interface, and identifying through the ID of the cell.

And sixthly, establishing the QoS parameters of the cell-level QoS flow according to the cell-level data requirements to be sent by the cell. And activating the network side during cell establishment to receive the cell-level QoS flow sent by the core network.

Seventhly, the parameters established in the cell level bearer are not configured to the terminal side through an air interface signaling, but are explicitly defined in an RRC protocol text, and then the network side and the terminal side are locally configured according to the provisions in the protocol text respectively.

The protocol stack function of Layer 2 (L2, layer 2) used by the cell-level QoS flow is as follows:

a) Cell level QoS flow.

First, the QoS flow and DRB at the user group level are mapped one-to-one, i.e. the QoS flow at a user group level can be mapped to only one DRB bearer. In other words, qoS flow maps to DRB, including: and determining the route from the QoS Flow to the DRB and the route from the DRB to the QoS Flow according to the mapping relation between the Qow Flow ID and the DRB ID. Secondly, when the base station sends data to the terminal, the SDAP entity of the base station completes SDU building PDU, when the base station receives the data sent by the terminal, the SDAP entity of the base station analyzes the PDU to obtain SDU, and no header is needed to be added. Thirdly, the flexible mapping (remapping) function of QoS flow is not supported, and the remapping (remapping) function is not supported; the flexible mapping means that a flag is carried in a data packet to indicate that the QoSflow can be replaced by a new DRB; the remapping means that the QoS flow can select other DRBs, and is configured through signaling.

B) PDCP function of cell level QoS flow.

First, the PDCP SNs of PDCP SDUs transmitted on a DRB use an independent count within one cell. In order to ensure the safety, SN is set and zeroed according to a certain period; or, setting and zeroing are performed according to the transmission characteristics of the data, that is, whether the data transmitted on the DRB is cell-level data is judged; or, if the time interval between two adjacent data transmissions of the cell-level data is relatively long, the position zeroing setting may be performed in the two time intervals, and if the time interval between two adjacent data transmissions is on the order of hours, the "time interval is relatively long". Second, in order to improve the efficiency of cell-level data transmission, IP header compression is required for data of cell-level QoS flow.

C) RLC function of cell level QoS flow.

First, the DRB carrying the cell level QoS flow may be referred to as a cell level DRB, and the cell level DRB only needs to support an Unacknowledged (UM) Mode RLC Mode because data of the cell level DRB is for multiple users and does not need to acknowledge feedback. Second, the cell level DRB requires a concatenation function (concatenation) in the RLC layer, by which small packets are converted into a packet size suitable for the MAC layer to transmit.

It should be noted that, in the embodiment of the present invention, the frame architecture conforming to the current layer 2 protocol is defined in a parameter level, so that the current protocol architecture is not affected.

In order to implement the method according to the embodiment of the present invention, an embodiment of the present invention further provides a data processing apparatus, which is disposed on a base station, and as shown in fig. 5, the apparatus includes:

a first receiving unit 51, configured to receive data of a first QoS flow from a core network;

a first determining unit 52, configured to determine a first user group corresponding to the first QoS flow; the first user group comprises at least two terminals;

a first sending unit 53, configured to send the data of the first QoS flow to at least two terminals in the first user group, respectively.

When the first user group is formed by all terminals in a cell, the data of the first QoS flow may be a common message simultaneously sent to all users in the cell, or a common message sent to some users in the cell.

For example, when the data of the first QoS flow is a common message simultaneously sent to all users in the cell, the base station may send the data of the first QoS flow to all terminals in the first user group respectively; when the data of the first QoS flow is a common message sent to some users in the cell, the base station may send the data of the first QoS flow to some terminals in the first user group respectively.

When at least two terminals receiving the data of the first QoS flow are partial terminals of the first user group, in an embodiment, the first receiving unit is further configured to receive a user list sent by the core network; correspondingly, the first determining unit is further configured to determine, based on the user list, at least two terminals receiving data of a first QoS flow; the first sending unit is further configured to send the data of the first QoS flow to the determined at least two terminals.

Based on this, in an embodiment, the apparatus further comprises:

the SDAP entity unit is used for determining a wireless data bearer (DRB) corresponding to the first QoS flow; mapping the data of the first QoS flow to the determined DRB and sending the data of the first QoS flow to at least two terminals in the first user group; the DRB is further configured to determine a DRB carrying data of the first terminal corresponding to the second user group; and determines a second QoS flow mapped by the DRB.

In practical applications, in order to ensure security, the PDCP entity of the base station may set the PDCP SN of the PDCP SDU transmitted on the DRB to zero after determining that the data transmission on the DRB is completed.

Based on this, in an embodiment, the apparatus further comprises:

In order to implement QoS bearer at a user group level, after a cell is established, a mapping relationship between QoS flow and DRB corresponding to a first user group needs to be established.

Based on this, in an embodiment, the SDAP entity unit is further configured to establish a mapping relationship between the first QoS flow and the DRB after the cell is established.

For example, the SDAP entity of the base station may establish a mapping relationship between the first QoS flow and the DRB according to the QoS parameter obtained from the core network and the QoS ID in the packet header received from the core network.

In actual application, after the cell is established, the base station may further perform DRB configuration on the first user group, for example, configure a QoS parameter of QoS flow carried on the DRB.

Based on this, in an embodiment, the apparatus further comprises: a configuration unit, configured to perform DRB configuration corresponding to the first user group.

In practical application, after the DRB configuration corresponding to the first user group is completed, the base station may carry the DRB configuration of the first user group in an RRC signaling generated by an RRC entity of the base station, and send the DRB configuration to all terminals included in the first user group.

Based on this, in an embodiment, the apparatus further comprises: an RRC entity unit, configured to generate a first RRC message; the first RRC message carries the DRB configuration corresponding to the first user group; and transmitting the first RRC message to the terminals of the first user group through a first transmitting unit 53.

Based on this, in an embodiment, the apparatus further comprises: and the establishing unit is used for establishing the PDU session corresponding to the first user group with the core network.

In practical applications, the first determining unit 52, the sdap entity unit, the PDCP entity unit, the configuration unit, and the establishing unit may be implemented by a processor in the data processing apparatus; the first receiving unit 51 and the first sending unit 53 may be implemented by a communication interface in the data processing apparatus.

It should be noted that: in the data processing apparatus provided in the above embodiment, when performing data processing, only the division of each program module is exemplified, and in practical applications, the processing may be distributed to different program modules according to needs, that is, the internal structure of the apparatus may be divided into different program modules to complete all or part of the processing described above. In addition, the data processing apparatus provided in the above embodiments and the data processing method embodiment on the base station side belong to the same concept, and specific implementation processes thereof are described in the method embodiment and are not described herein again.

In order to implement the method according to the embodiment of the present invention, an embodiment of the present invention further provides a data processing apparatus, which is disposed on a base station, and as shown in fig. 6, the apparatus includes:

a second receiving unit 61 for receiving data from the first terminal;

a second determining unit 62, configured to determine a second user group where the first terminal is located; the second user group comprises at least two terminals; determining a second QoS flow corresponding to the second user group;

a second sending unit 63, configured to send the received data of the first terminal to the core network based on the second QoS flow.

Here, the second sending unit 63 may send the data of the first terminal, which is carried by the second QoS flow, to the core network through the Ng interface.

Based on this, in an embodiment, the apparatus further comprises:

an SDAP entity unit, configured to determine a DRB that carries data of the first terminal and corresponds to the second user group; and determines a second QoS flow mapped by the DRB.

In practical application, the base station may receive data sent by multiple terminals, and the multiple terminals may belong to different user groups. The process that the first base station sends the data of the first terminal to the core network based on the second QoS flow may include:

the MAC entity of the base station takes the data sent by the plurality of received terminals as MAC PDU, and decapsulates the MAC PDU to obtain MAC SDU; wherein the plurality of terminals may belong to different user groups. The RLC entity of the base station decapsulates the MAC SDU to obtain the RLC SDU, reorders the obtained RLC SDU, and recombines the reordered RLC SDU to obtain the RLC SDU corresponding to the first terminal; the PDCP entity of the base station decapsulates the RLC SDU to obtain the PDCP SDU; decompressing an ROHC packet header of the PDCP SDU to obtain decompressed PDCP SDU; the SDAP entity of the base station decapsulates the decompressed PDCP SDU to obtain the SDAP SDU; and taking the SDAP SDU as the data loaded by the second QoS flow.

Based on this, in an embodiment, the SDAP entity is further configured to establish a mapping relationship between the second QoS flow and the DRB after the cell is established.

It should be noted that, in the embodiment of the present invention, after the cell is established, the mapping relationship between the second QoS flow of the user group level and the DRB of the user group level is directly established, and it is not necessary to wait for the terminal to access the cell, so that the QoS bearer of the user group level can be implemented.

Based on this, in an embodiment, the apparatus further comprises: and the configuration unit is used for carrying out DRB configuration corresponding to the second user group.

In practical application, after the DRB configuration corresponding to the second user group is completed, the base station may carry the DRB configuration of the second user group in an RRC signaling generated by an RRC entity of the base station, and send the DRB configuration to all terminals included in the second user group.

Based on this, in an embodiment, the apparatus further comprises: an RRC entity unit, configured to generate a second RRC message; the second RRC message carries the DRB configuration corresponding to the second user group; and transmitting the second RRC message to the terminals of the second user group through a second transmitting unit 63.

Based on this, in an embodiment, the apparatus may further include: and the establishing unit is used for establishing the PDU session corresponding to the second user group with the core network.

In practical applications, the second determining unit 62, the sdap entity unit, the PDCP entity unit, the configuring unit, and the establishing unit may be implemented by a processor in the data processing apparatus; the second receiving unit 61 and the second sending unit 63 may be implemented by a communication interface in the data processing apparatus.

It should be noted that: in the data processing apparatus provided in the foregoing embodiment, when performing data processing, only the division of each program module is described as an example, and in practical applications, the processing allocation may be completed by different program modules according to needs, that is, the internal structure of the apparatus may be divided into different program modules to complete all or part of the processing described above. In addition, the data processing apparatus provided in the above embodiments and the data processing method embodiment on the base station side belong to the same concept, and specific implementation processes thereof are described in the method embodiment and are not described herein again.

Based on the hardware implementation of the above program modules, to implement the method according to the embodiment of the present invention, an embodiment of the present invention further provides a base station, as shown in fig. 7, where the base station 70 includes: a processor 71 and a communication interface 72; wherein the content of the first and second substances,

and the processor 71 is connected with the communication interface 72 to implement information interaction with the second base station, and is configured to execute the method provided by one or more of the above technical solutions when running a computer program. And the computer program is stored on the memory 73;

and a communication interface 72 capable of exchanging information with the second base station.

In practice, the various components of the base station 70 are coupled together by a bus system 74. It will be appreciated that the bus system 74 is used to enable communications among the components of the connection. The bus system 74 includes a power bus, a control bus, and a status signal bus in addition to a data bus. For clarity of illustration, however, the various buses are labeled as bus system 74 in fig. 7.

The memory 73 in the embodiment of the present invention is used to store various types of data to support the operation of the base station 70.

The method disclosed in the above embodiments of the present invention may be applied to the processor 71, or implemented by the processor 71. The processor 71 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware or instructions in the form of software in the processor 71. The Processor 71 may be a general purpose Processor, a Digital Signal Processor (DSP), or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, etc. Processor 71 may implement or perform the methods, steps, and logic blocks disclosed in the embodiments of the present invention. The general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed by the embodiment of the invention can be directly implemented by a hardware decoding processor, or can be implemented by combining hardware and software modules in the decoding processor. The software modules may be located in a storage medium located in memory 73, and processor 71 reads the information in memory 73 and performs the steps of the foregoing method in conjunction with its hardware.

In an exemplary embodiment, the base station 70 may be implemented by one or more Application Specific Integrated Circuits (ASICs), DSPs, programmable Logic Devices (PLDs), complex Programmable Logic Devices (CPLDs), field-Programmable Gate arrays (FPGAs), general purpose processors, controllers, micro Controllers (MCUs), microprocessors (microprocessors), or other electronic components for performing the foregoing methods.

In an exemplary embodiment, an embodiment of the present invention further provides a storage medium, which may specifically be a computer-readable storage medium, for example, the memory 73 including a computer program, where the computer program is executable by the processor 71 of the base station 70 to complete the steps of the foregoing base station side method.

The computer readable storage medium can be FRAM, ROM, PROM, EPROM, EEPROM, flash Memory, magnetic surface Memory, optical disk, or CD-ROM.

It should be noted that: "first," "second," and the like are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.

It should be noted that: the technical schemes described in the embodiments of the present invention can be combined arbitrarily without conflict.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.

Claims

1. A data processing method applied to a base station includes:

receiving data of a first quality of service flow QoS flow from a core network; determining a first user group corresponding to the first QoS flow; the first user group comprises at least two terminals; respectively sending the data of the first QoS flow to at least two terminals in the first user group; and/or the presence of a gas in the gas,

2. The method of claim 1, wherein the sending the data of the first QoS flow to at least two terminals in the first user group respectively comprises:

a service data adaptation protocol SDAP entity of the base station determines a wireless data bearer DRB corresponding to the first QoS flow; and mapping the data of the first QoS flow to the determined DRB and sending the data of the first QoS flow to at least two terminals in the first user group.

3. The method of claim 2, further comprising:

and after determining that the data transmission on the DRB is finished, the packet data convergence protocol PDCP entity of the base station clears the PDCP SN of the PDCP service data unit SDU transmitted on the DRB.

4. The method of claim 1, wherein the first group of users consists of all terminals in a cell; and/or the second user group consists of all terminals in one cell.

5. The method of claim 1, wherein the at least two terminals receiving the data of the first QoS flow are part of the terminals of the first user group, the method further comprising:

receiving a user list sent by the core network;

6. The method of claim 1, wherein determining a second QoS flow corresponding to the second group of users comprises:

7. The method of claim 1, further comprising:

8. The method of claim 7, further comprising:

a Radio Resource Control (RRC) entity of the base station generates a first RRC message; the first RRC message carries DRB configuration corresponding to the first user group; transmitting the first RRC message to terminals of the first user group;

and/or the presence of a gas in the gas,

the RRC entity of the base station generates a second RRC message; the second RRC message carries the DRB configuration corresponding to the second user group; and sending the second RRC message to the terminals of the second user group.

9. The method of claim 1, further comprising:

after the cell is established, the SDAP entity of the base station establishes the mapping relation between the first QoS flow and the DRB;

and/or the presence of a gas in the gas,

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

a first sending unit, configured to send the data of the first QoS flow to at least two terminals in the first user group respectively;

and/or the presence of a gas in the gas,

a second receiving unit for receiving data from the first terminal;

11. The apparatus of claim 10, further comprising:

the SDAP entity unit is used for determining a DRB corresponding to the first QoS flow; mapping the data of the first QoS flow to the determined DRB and sending the data of the first QoS flow to at least two terminals in the first user group; and/or an SDAP entity unit, configured to determine a DRB carrying data of the first terminal corresponding to the second user group; and determining a second QoS flow mapped by the DRB.

12. The apparatus of claim 11, further comprising:

13. The apparatus of claim 10,

the first receiving unit is further configured to receive a user list sent by the core network;

14. The apparatus of claim 10, further comprising:

and the configuration unit is used for performing DRB configuration corresponding to the first user group and the second user group respectively before data is received and transmitted.

15. The apparatus of claim 14, further comprising:

an RRC entity unit, configured to generate a first RRC message; the first RRC message carries DRB configuration corresponding to the first user group; and transmitting the first RRC message to terminals of the first user group; and/or an RRC entity unit, configured to generate a second RRC message; the second RRC message carries a DRB configuration corresponding to the second user group; and transmitting the second RRC message to the terminals of the second user group.

16. The apparatus of claim 11,

the SDAP entity unit is also used for establishing the mapping relation between the first QoS flow and the DRB after the cell is established; and/or the SDAP entity unit is further used for establishing the mapping relation between the second QoS flow and the DRB after the cell is established.

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

the processor configured to determine a first user group corresponding to the first QoS flow; the first user group comprises at least two terminals;

and/or the presence of a gas in the gas,

the communication interface is used for receiving data from the first terminal;

18. The base station of claim 17,

the SDAP entity of the base station determines the DRB corresponding to the first QoS flow through the processor; mapping the data of the first QoS flow to the determined DRB through the communication interface and sending the data of the first QoS flow to at least two terminals in the first user group; and/or, the SDAP entity of the base station determines, through the processor, a DRB carrying data of the first terminal corresponding to the second user group; and determines a second QoS flow mapped by the DRB.

19. The base station of claim 18,

and after the PDCP entity unit of the base station determines that the data transmission on the DRB is finished through the processor, clearing the PDCP SN of the PDCP SDU transmitted on the DRB.

20. The base station of claim 17,

the processor is further configured to perform DRB configuration corresponding to the first user group and the second user group respectively before data transmission and reception.

21. The base station of claim 20,

the RRC entity unit of the base station generates a first RRC message through the processor; the first RRC message carries the DRB configuration corresponding to the first user group; and transmitting the first RRC message to the terminals of the first user group through the communication interface; and/or the RRC entity unit of the base station generates a second RRC message through the processor; the second RRC message carries the DRB configuration corresponding to the second user group; and sending the second RRC message to the terminals of the second user group through the communication interface.

22. The base station of claim 17,

after the cell is established, the SDAP entity of the base station establishes the mapping relation between the first QoS flow and the DRB through the processor; and/or after the cell is established, the SDAP entity of the base station establishes the mapping relation between the second QoS flow and the DRB through the processor.

23. A base station, comprising: a processor and a memory for storing a computer program capable of running on the processor,

wherein the processor is adapted to perform the steps of the method of any one of claims 1 to 9 when running the computer program.

24. A storage medium having a computer program stored thereon, the computer program, when being executed by a processor, realizing the steps of the method according to any of the claims 1 to 9.