CN111132223B

CN111132223B - Data packet transmission method and communication equipment

Info

Publication number: CN111132223B
Application number: CN201811296919.4A
Authority: CN
Inventors: 谌丽; 刘佳敏
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2018-11-01
Filing date: 2018-11-01
Publication date: 2022-08-12
Anticipated expiration: 2038-11-01
Also published as: CN111132223A

Abstract

The embodiment of the invention provides a data packet transmission method and communication equipment, wherein the method comprises the following steps: the method comprises the steps that a first communication device determines N Data Radio Bearers (DRBs) which meet data flow QoS flow mapping of service quality, wherein N is an integer larger than 1; the first communication device maps the packets of the QoS flow onto the N DRBs. The embodiment of the invention can improve the transmission rate of the communication system.

Description

Data packet transmission method and communication equipment

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a data packet transmission method and a communication device.

Background

In a communication system (e.g., a 5G communication system), data mapping is performed in a streaming manner, where a core network is responsible for mapping an IP flow (IP flow) to a flow that satisfies Quality of Service (QoS), and an access network is responsible for mapping the QoS flow to a Radio Bearer (RB). Currently, in a communication system, a QoS flow can only be mapped to a Data Radio Bearer (DRB), that is, all Data packets of the QoS flow can only be transmitted through the DRB. This results in a relatively low transmission rate of the communication system.

Disclosure of Invention

The embodiment of the invention provides a data packet transmission method and communication equipment, which aim to solve the problem that the transmission rate of a communication system is low.

In order to achieve the above object, an embodiment of the present invention provides a method for transmitting a data packet, including:

the first communication device determines N Data Radio Bearers (DRBs) mapped by a data flow (QoS flow) meeting quality of service, wherein N is an integer greater than 1;

the first communication device maps the packets of the QoS flow onto the N DRBs.

Optionally, the N DRBs include DRBs with different priorities;

the first communication device maps the data packets of the QoS flow to the N DRBs respectively, including:

and the first communication equipment maps the first data packet of the QoS flow onto a first DRB, and maps the second data packet of the QoS flow onto a second DRB, wherein the priority of the logic channel corresponding to the first DRB is higher than that of the logic channel corresponding to the second DRB.

Optionally, each data packet of the QoS flow is added with a specific identifier, and the first communication device determines the priority of the data packet according to the specific identifier; alternatively, the first and second electrodes may be,

and the first communication equipment determines the priority of the data packet according to the type of the data packet of the QoS flow.

Optionally, the specific identifier is a time identifier or a priority identifier.

Optionally, the specific identifier is a specific identifier added by a Time Sensitive Network (TSN) or a core network.

Optionally, the determining, by the first communication device, N DRBs mapped by the QoS flow includes:

the first communication equipment determines the N DRBs mapped by the QoS flow in an explicit configuration mode; alternatively, the first and second electrodes may be,

and the first communication equipment determines the N DRBs mapped by the QoS flow through the mapping relation between the QoS flow and the DRBs in a reflective (reflective) QoS mode.

Optionally, the determining, by the first communication device, the N DRBs mapped by the QoS flow through an explicit configuration mode includes:

the first communication device determines the N DRBs mapped by the QoS flow according to configuration information sent by a network side, where the configuration information carries a QoS flow ID and a corresponding DRB ID or a Logical Channel Identity (LCID) for indicating a rule that the QoS flow is mapped to the N DRBs.

Optionally, the determining, by the first communication device, the N DRBs mapped by the QoS flow according to a mapping relationship between the QoS flow and the DRBs by using a feedback reflective QoS mode includes:

the first communication equipment receives the data packet of the QoS flow sent by the second communication equipment, wherein the data packet of the QoS flow sent by the second communication equipment is mapped to N DRBs;

and the first communication equipment applies the mapping relation between the QoS flow and the DRB to the mapping between the QoS flow and the DRB when the first communication equipment sends data to the second communication equipment, and maps the data packets with the same QoS flow ID to the same N DRB IDs.

Optionally, the priorities of the logical channels corresponding to the N DRBs are configured by the network side.

The embodiment of the invention also provides a data packet transmission method, which comprises the following steps:

the second communication equipment receives data packets of the same QoS flow mapped by the first communication equipment through N DRBs respectively, wherein the QoS flow and the N DRBs form a mapping relation, and N is an integer greater than 1.

Optionally, the N DRBs include DRBs with different priorities;

and mapping a first data packet of the QoS flow onto a first DRB, and mapping a second data packet of the QoS flow onto a second DRB, wherein the priority of the logic channel corresponding to the first DRB is higher than that of the logic channel corresponding to the second DRB.

Optionally, the specific identifier is a specific identifier added by the time sensitive network TSN or the core network.

Optionally, the N DRBs of the QoS flow map are explicitly configured; alternatively, the first and second electrodes may be,

and the N DRBs mapped by the QoS flow are determined by adopting a reflective QoS mode.

Optionally, if the N DRBs of the QoS flow mapping are explicitly configured, the method further includes:

and the second communication equipment receives configuration information sent by a network side, wherein the configuration information carries a QoS flow ID and a corresponding DRB ID or LCID and is used for representing a rule that the QoS flow is mapped to the N DRBs.

Optionally, if the N DRBs mapped by the QoS flow are determined in a reflective QoS manner, before the second communication device receives data packets of the same QoS flow that are transmitted by the first communication device through the N DRBs, the method further includes:

the second communication equipment sends a data packet of QoS flow to the first communication equipment, wherein the data packet of QoS flow sent by the second communication equipment is mapped to N DRBs, so that the first communication equipment applies the mapping relation between QoS flow and DRBs to the mapping relation between QoS flow and DRBs when the first communication equipment sends data to the second communication equipment, and maps the data packets with the same QoS flow ID to the same N DRB IDs, and the mapping relation is the mapping relation between QoS flow and DRBs to which the data packet belongs received by the first communication equipment.

An embodiment of the present invention further provides a communication device, where the communication device is a first communication device, and the communication device includes:

a determining module, configured to determine N DRBs mapped by a QoS flow, where N is an integer greater than 1;

and the mapping module is used for mapping the data packet of the QoS flow to the N DRBs.

Optionally, the N DRBs include DRBs with different priorities;

the mapping module is configured to map a first data packet of the QoS flow onto a first DRB, and map a second data packet of the QoS flow onto a second DRB, where a priority of a logical channel corresponding to the first DRB is higher than a priority of a logical channel corresponding to the second DRB.

Optionally, the determining module is configured to determine the N DRBs of the QoS flow mapping in an explicit configuration manner; alternatively, the first and second electrodes may be,

and the first communication equipment determines the N DRBs mapped by the QoS flow through the mapping relation between the QoS flow and the DRBs in a reflective QoS mode.

An embodiment of the present invention further provides a communication device, where the communication device is a second communication device, and the communication device includes:

a sending module, configured to receive a data packet of the same QoS flow mapped by N DRBs respectively by a first communication device, where the QoS flow and the N DRBs form a mapping relationship, and N is an integer greater than 1.

Optionally, the N DRBs include DRBs with different priorities;

An embodiment of the present invention further provides a communication device, where the communication device is a first communication device, and the communication device includes: a transceiver, a memory, a processor, and a program stored on the memory and executable on the processor,

the processor is configured to determine N DRBs of a QoS flow map, where N is an integer greater than 1;

the transceiver is used for mapping the data packets of the QoS flow onto the N DRBs;

alternatively, the first and second electrodes may be,

the transceiver is configured to determine N DRBs of a QoS flow map, where N is an integer greater than 1;

the transceiver is further configured to map the packets of the QoS flow onto the N DRBs.

Optionally, the N DRBs include DRBs with different priorities;

the mapping the data packets of the QoS flow to the N DRBs respectively includes:

Optionally, each data packet of the QoS flow is added with a specific identifier, and the first communication device determines the priority of the data packet according to the specific identifier; alternatively, the first and second liquid crystal display panels may be,

Optionally, the determining N DRBs mapped by QoS flow includes:

determining the N DRBs of the QoS flow mapping by an explicit configuration mode; alternatively, the first and second electrodes may be,

and determining the N DRBs mapped by the QoS flow through the mapping relation between the QoS flow and the DRBs by adopting a reflective QoS mode.

Optionally, the determining the N DRBs of the QoS flow mapping in an explicit configuration manner includes:

and determining the N DRBs mapped by the QoS flow according to configuration information sent by a network side, wherein the configuration information carries a QoS flow ID and a corresponding DRB ID or a Logical Channel Identifier (LCID) and is used for representing a rule that the QoS flow is mapped to the N DRBs.

Optionally, the determining, by using a feedback reflexive QoS manner, the N DRBs mapped by the QoS flow through a mapping relationship between the QoS flow at the opposite end and the DRBs includes:

receiving a data packet of the QoS flow sent by a second communication device, wherein the data packet of the QoS flow sent by the second communication device is mapped to N DRBs;

and applying the mapping relation between the QoS flow and the DRB to the mapping between the QoS flow and the DRB when the first communication equipment sends data to the second communication equipment, and mapping the data packets with the same QoS flow ID to the same N DRB IDs.

An embodiment of the present invention further provides a communication device, where the communication device is a second communication device, and the communication device includes: a transceiver, a memory, a processor, and a program stored on the memory and executable on the processor,

the transceiver is configured to receive a data packet of the same QoS flow mapped by N DRBs respectively by a first communication device, where the QoS flow and the N DRBs form a mapping relationship, and N is an integer greater than 1.

Optionally, the N DRBs include DRBs with different priorities;

Optionally, if the N DRBs of the QoS flow map are explicitly configured, the transceiver is further configured to:

and receiving configuration information sent by a network side, wherein the configuration information carries a QoS flow ID and a corresponding DRB ID or LCID and is used for representing a rule that the QoS flow is mapped to the N DRBs.

Optionally, if the N DRBs mapped by the QoS flow are determined in a reflective QoS manner, before the receiving the data packets of the same QoS flow transmitted by the first communication device through the N DRBs, the transceiver is further configured to:

and sending a data packet of QoS flow to the first communication device, wherein the data packet of QoS flow sent by the second communication device is mapped onto N DRBs, so that the first communication device applies the mapping relation between QoS flow and DRBs to the mapping relation between QoS flow and DRBs when the first communication device sends data to the second communication device, and maps the data packets of the same QoS flow ID onto the same N DRB IDs, wherein the mapping relation is the mapping relation between QoS flow and DRBs to which the data packet received by the first communication device belongs.

An embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program is executed by a processor to implement the steps in the packet transmission method on the first communication device side provided in the embodiment of the present invention, or the computer program is executed by the processor to implement the steps in the packet transmission method on the second communication device side provided in the embodiment of the present invention.

In the embodiment of the invention, a first communication device determines N Data Radio Bearers (DRBs) which meet data flow QoS flow mapping of service quality, wherein N is an integer greater than 1; the first communication device maps the packets of the QoS flow onto the N DRBs. Therefore, the data packet of one QoS flow can be mapped to a plurality of DRBs, and the transmission rate of the communication system is improved.

Drawings

FIG. 1 is a schematic diagram of a network architecture to which embodiments of the present invention are applicable;

fig. 2 is a flowchart illustrating a method for transmitting a data packet according to an embodiment of the present invention;

fig. 3 is a schematic diagram illustrating a transmission configuration of a data packet according to an embodiment of the present invention;

fig. 4 is a flow chart illustrating another method for transmitting a data packet according to an embodiment of the present invention;

fig. 5 is a block diagram of a communication device according to an embodiment of the present invention;

fig. 6 is a block diagram of another communication device provided in an embodiment of the present invention;

fig. 7 is a block diagram of another communication device provided by an embodiment of the present invention;

fig. 8 is a block diagram of another communication device provided in an embodiment of the present invention;

fig. 9 is a block diagram of another communication device provided in an embodiment of the present invention;

fig. 10 is a block diagram of another communication device according to an embodiment of the present invention.

Detailed Description

In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1, fig. 1 is a schematic diagram of a network structure to which the embodiment of the present invention is applicable, and as shown in fig. 1, the network structure includes a first communication device 11 and a second communication device 12, where the first communication device 11 may be a terminal 11, and the terminal may be a User Equipment (UE) or other terminal devices, for example: terminal side equipment such as a Mobile phone, a Tablet Personal Computer (Tablet Personal Computer), a Laptop Computer (Laptop Computer), a Personal Digital Assistant (PDA), a Mobile Internet Device (MID), or a Wearable Device (Wearable Device) is not limited to a specific type of terminal in the embodiments of the present invention. The second communication device 12 may be a network side device, and the network side device may be a base station, for example: macro station, LTE eNB, 5G NR NB, etc.; the network side device may also be a small station, such as a Low Power Node (LPN), pico, femto, or an Access Point (AP); the base station may also be a network node that is composed of a Central Unit (CU) and a plurality of Transmission Reception Points (TRPs) whose management is and controls. It should be noted that, in the embodiment of the present invention, the specific type of the network-side device is not limited. Of course, in some scenarios, the first communication device 11 may also be a network-side device, and the second communication device 12 may be a terminal.

Referring to fig. 2, fig. 2 is a flowchart of a data packet transmission method according to an embodiment of the present invention, and as shown in fig. 2, the method includes the following steps:

201. the first communication equipment determines N DRBs of a QoS flow mapping, wherein N is an integer greater than 1;

202. the first communication device maps the packets of the QoS flow onto the N DRBs.

The QoS flow packet may include a plurality of packets, and the N DRBs may include DRBs with different priorities of corresponding logical channels.

The first communication device may map the QoS flow packets onto the N DRBs, where the mapped packets are different in different DBRs. For example, the first communication device may determine the DRB mapped to each data packet according to the specific characteristics or priority of the data packet of the QoS flow, and then map the data packet to the corresponding DRB respectively. If the priority of the data packets is different, mapping the data packets with high priority in the QoS flow to the DRB corresponding to the logical channels with high priority.

The first communication device maps the data packets of QoS flow onto N DRBs, as shown in fig. 3, where the DRBs include DRBs 1 and DRBs 2, and the priority of the logical channels corresponding to DRBs 1 and DRBs 2 is different, and the first communication device maps one data packet of QoS flow (marked as QFI1) onto DRBs 1 and DRBs 2, respectively. The second communication device receives the data packets of the same QoS flow mapped by the first communication device through the DRB1 and the DRB2, respectively.

It should be noted that the transmission configuration of the data packet shown in fig. 3 is only an illustration, for example: there may also be 3 or more than 3 DRBs.

Through the steps, the data packet of one QoS flow can be mapped to a plurality of DRBs, so that the transmission rate of the communication system is improved. And can also achieve more accurate transmission control for each packet in the QoS flow. Therefore, all data can meet the requirements of low time delay and high reliability, and particularly, the transmission rate and the transmission performance of the whole IP flow can be improved through the prior transmission of the signaling data packet.

As an optional implementation, the N DRBs include DRBs with different priorities;

The first data packet and the second data packet may refer to one or more data packets, so that different data can be transmitted through DRBs with different priorities, so as to realize more accurate transmission control on each data packet in the QoSflow. For example: when the priority of the first packet is higher than that of the second packet, the first packet may be mapped to the first DRB, and the second packet may be mapped to the second DRB.

Of course, in the embodiment of the present invention, the N DBRs are not limited to include only the first DRB and the second DRB, for example: the N DRBs may include at least 3 DRBs.

In one implementation, each data packet of the QoS flow is added with a specific identifier, and the first communication device determines the priority of the data packet according to the specific identifier.

Wherein the specific identifier may be an identifier for determining a priority of the data packet of the QoS flow.

The time identifier may be used to indicate the data arrival time, and in the same QoS flow, a data packet generated earlier in time needs to be transmitted preferentially, so that it is ensured that all data packets of the entire flow meet the low-latency requirement as much as possible, and the first communication device may determine the priority of the data packet through the time identifier.

The priority flag may directly indicate the priority of the packet, such as simply prioritizing the packet in the QoS flow with 0 and 1, or of course, more priority levels may be added.

Further, the specific identifier may be a specific identifier added by the TSN or the core network.

Thus, the specific characteristics of each data packet can be identified by the network side, such as adding characteristic identification to each data packet entering the access network by the TSN or the core network.

In another implementation, the first communication device determines the priority of the data packets according to the type of the data packets of the QoS flow.

For example: the first communication device identifies the type of the data packet, such as whether the data packet is a signaling type data packet, and determines the priority of the data packet, wherein the priority of the signaling type data packet can be set to be higher than the priority of other data packets.

As an optional implementation manner, the determining, by the first communication device, N DRBs mapped by QoS flow includes:

the first communication device determines the N DRBs of the QoS flow mapping by means of explicit configuration.

The explicit configuration mode is that the first communication device determines a mapping relationship according to configuration information sent by the second communication device.

In this embodiment, the N DRBs mapped by the QoS flow may be accurately and quickly determined by an explicit configuration.

and the first communication equipment determines the N DRBs mapped by the QoS flow according to configuration information sent by a network side, wherein the configuration information carries a QoS flow ID and a corresponding DRB ID or LCID and is used for representing a rule that the QoS flow is mapped to the N DRBs.

The network side may be the second communication device, and the configuration information may be configuration information received before the first communication device transmits the QoS flow packet.

Since the QoS flow ID and the corresponding DRB ID are carried, the configuration information may be used to indicate a rule that the QoS flow is mapped to the N DRBs, so that the first communication device may directly determine that the QoS flow is mapped to the N DRBs through the configuration information.

Similarly, since the QoS flow ID and the corresponding LCID are carried, the configuration information may be used to indicate a rule that the QoS flow is mapped to the N DRBs, so that the first communication device may directly determine that the QoS flow is mapped to the N DRBs through the configuration information.

For example: the first communication device is a terminal, and the second communication device is a network side device, the second communication device may configure an uplink QoS Flow ID (QFI) to N DRBs, and each DRB is mapped to a logical channel with different uplink priorities. For example, QoS flow of the second communication device configuration QFI ═ 1 is mapped onto DRB1 and DRB2, DRB1 is mapped onto logical channel 1 with priority set to 1, DRB2 is mapped onto logical channel 2 with priority set to 2, then high priority data in this QoS flow is mapped onto DRB1 and logical channel 1, transmission is prioritized, and relatively low priority data is mapped onto DRB2 and logical channel 2.

The determining the N DRBs mapped by the QoS flow through the mapping relationship between the QoS flow and the DRBs at the opposite end may be determining the N DRBs mapped by the QoS flow from the mapping relationship between the QoS flow and the DRBs at the opposite end as the N DRBs mapped by the QoS flow.

In one mode, the mapping relationship between the peer QoS flow and the DRB may be configured by the peer to the first communication device, for example, the network side configures the first communication device. Taking the first communication device as a terminal and the second communication device as a network side device for example, if the network side device maps one QoS flow onto more than 1 DRBs, the network side device may first configure the QoS flow (identified by QFI) onto more than 1 DRBs (each DRB is identified by one RB ID) in the RRC configuration signaling, and transmit downlink data on the configured DRBs; thus, the terminal side receives the data transmission of the configured DRB and merges the data transmission to a corresponding QoS flow, thereby determining the mapping relationship between the QoS flow of the network side device and the DRB, and further determining the N DRBs mapped by the QoS flow by adopting a reflective QoS manner.

In another mode, the mapping relationship between the QoS flow and the DRB at the opposite end may be determined according to the DRB where the data packet of the QoS flow at the opposite end sent by the second communication device is located. For example: and the data packet of the QoS flow sent by the second communication device is mapped to the first DBR and the second DBR, and the QoS flow is mapped with the first DBR and the second DBR.

In this embodiment, the N DRBs mapped by the QoS flow are determined by reflecting a reflective QoS, so that transmission overhead can be saved.

The mapping relationship between the QoS flow and the DRB may indicate a mapping relationship that a data packet of the QoS flow sent and sent by the second communication device is mapped to N DRBs, or the mapping relationship may also be referred to as a mapping relationship between the QoS flow and the DRB to which the data packet received by the first communication device belongs.

It should be noted that, determining the mapping relationship between QoS flow and DRB also includes the two cases described above, for example: and the other network side is mapped to the DRB according to the data packet of the QoS flow sent by the second communication equipment, and determines the mapping relation between the QoS flow and the DRB.

It should be noted that the above-mentioned packet receiving the QoS flow sent by the second communication device may be a certain packet receiving the QoS flow, or data mapped on a certain DBR, because in this case, the first communication device may determine the QoS flow according to the received packet, and further, apply the mapping relationship to the mapping between the QoS flow and the DRB when the first communication device transmits the transmission data to the second communication device through the mapping relationship between the QoS flow and the DRB configured on the network side.

Alternatively, the data packet receiving the QoS flow sent by the second communication device may be a data packet that is mapped to N DBRs of the QoS flow, so that the mapping relationship between the QoS flow and the DRB may be determined by the received data packet, and the mapping relationship is applied to the mapping between the QoS flow and the DRB when the first communication device transmits the sending data to the second communication device.

In the above embodiment, the first communication device is taken as a terminal, the second communication device is taken as a network side device as an example, the Reflective QoS may be that the network side device does not explicitly configure a mapping relationship between uplink QoS Flow and DRB for the terminal, and when the terminal receives the mapping relationship between downlink QFI and DRB, the uplink uses the same mapping rule, for example, when the terminal receives downlink data, the downlink DRB1(DRB ID is 1) includes QoS Flow of QFI ═ 1 (QFI is included in the downlink SDAP header), and if there is QoS Flow of QFI ═ 1 to transmit, the uplink is mapped into the uplink DRB of DRB ID ═ 1.

Wherein, if one QoS flow is mapped to more than 1 DRB, the manner of executing Reflective QoS may be as follows:

the network side device maps one downlink QoS flow to more than 1 DRB, and then the network side device configures the QoS flow (identified by QFI) to more than 1 DRB (each DRB identified by one RB ID) in RRC configuration signaling, and transmits downlink data on the configured DRB, for example, the QoS flow with QFI ═ 1 is mapped to two DRBs with DRB ID ═ 1 and DRB ID ═ 2. Mapping to one QoS flow onto two DRBs is exemplified below.

The network side device configures two uplink DRBs with DRB ID of 1 and DRB ID of 2 for the terminal, where the two DRBs respectively correspond to uplink logical channels 1 and 2, the uplink priority of logical channel 1 is 1, and the uplink priority of logical channel 2 is 2. The base station can also perform other DRB configuration on the terminal, and at this step, the terminal cannot recognize the mapping relationship between the QoS flow of QFI ═ 1 and the uplink DRB.

The terminal receives downlink data sent by the base station, receives a downlink DRB with DRB ID of 1, wherein the data contains QFI of 1, and then the terminal determines that QoS flow of uplink QFI of 1 is mapped to the uplink DRB with DRB ID of 1; and receiving the downlink DRB with the DRB ID of 2, wherein the data with the QFI of 1 is contained, and the terminal determines that the QoS flow of the uplink QFI of 1 is mapped to the uplink DRB with the DRB ID of 2. Up to this point, the terminal determines that the uplink QoS flow of QFI ═ 1 is mapped to two uplink DRBs of DRB ID ═ 1 and DRB ID ═ 2, and since the logical channels corresponding to the two DRBs of DRB ID ═ 1 and DRB ID ═ 2 have already been subjected to uplink priority setting, the terminal may perform data mapping on the data of the QoS flow of QFI ═ 1 according to the priority based on the uplink priority setting.

Optionally, in this embodiment of the present invention, the priorities of the logical channels corresponding to the N DRBs are configured by the network side. For example: and configuring the priorities of the logical channels corresponding to the N DRBs by the network side equipment. Of course, the priority of the logical channel corresponding to the predetermined N DRBs in the protocol is also excluded.

The following specifically exemplifies a data packet transmission method according to an embodiment of the present invention by using several specific embodiments.

Example 1: taking the mapping of downlink QoS flow to N DRBs as an example, the method is as follows:

assuming that the first communication device is a base station and the second communication device is a terminal:

step 1: the base station configures QoS flow (identified in QFI) over more than 1 DRB (each identified with an RB ID) in RRC configuration signaling, e.g., QoS flow1 maps to DRB1 and DRB2, where DRB1 has higher transmission priority than DRB 2;

step 2: when data arrives, the base station identifies the characteristics of each data packet in QoS flow and determines the priority of each data packet;

one of the following two ways is adopted:

such as the TSN network or the core network, adds a characteristic identifier to each incoming access network packet. The characteristic identifier may be a time identifier, such as a timestamp of data arrival time, and in the same QoS flow, data generated earlier in time needs to be transmitted preferentially so as to ensure that all data packets of the entire flow meet the low-delay requirement as much as possible; or priority identification, such as simply prioritizing the packet in the present QoS flow with 0, 1, more priority levels may be added. After the base station receives the data packets and determines the priority of the data packets, the characteristic identifiers of the data packets can be reserved or removed; or

The base station interprets the packet and identifies the packet type, e.g., whether the packet is a signaling type packet, to determine its priority.

And step 3: the base station maps the arriving data packets to corresponding DRB transmissions according to priority, e.g., data packets identified in step 2 as requiring priority transmission are mapped to DRB1, and lower priority data packets are mapped to DRB 2.

Assuming that the first communication device is a terminal and the second communication device is a base station:

step 1: and receiving the configuration of the base station, and determining the mapping relation between the downlink QoS flow and the DRB, wherein 1 QoS flow can be mapped to more than 1 DRB, for example, QoS flow1 is mapped to DRB1 and DRB 2.

Step 2: receiving downlink data transmission, and merging data corresponding to 1 or more DRBs corresponding to 1 QoS flow to a QoS flow delivery high layer.

Example 2: taking the example that the first communication device displays and configures the mapping of the uplink QoS flow to the N DRBs, the method is as follows:

step 1: the base station configures an uplink QoS flow (identified by QFI) to more than 1 RB in RRC configuration signaling, each RB being mapped to a logical channel with different uplink priorities. For example, QoS flow with base station configuration QFI ═ 1 is mapped onto DRB1 and DRB2, DRB1 is mapped to logical channel 1 with priority set to 1, and DRB2 is mapped to logical channel 2 with priority set to 2.

Step 2: and scheduling and receiving terminal uplink transmission, and merging the data packets of different DRBs mapped to the same QoS flow to deliver the data packets to a higher layer when receiving the data packets.

step 1: and receiving the mapping relation between the uplink QoS flow and the DRB indicated in the base station RRC configuration signaling. When an uplink QoS flow (identified by QFI) is configured to more than 1 RB, each RB is mapped to a logical channel with a different uplink priority. For example, QoSflow with base station configuration QFI ═ 1 is mapped onto DRB1 and DRB2, DRB1 is mapped onto logical channel 1 with priority set to 1, DRB2 is mapped onto logical channel 2 with priority set to 2.

Step 2: when data arrives, the terminal identifies the characteristics of each data packet in QoS flow and determines the priority of the data packet;

one of the following two ways is adopted:

such as the TSN network or the core network, adds a characteristic identifier to each incoming access network packet. The characteristic identifier may be a time identifier, such as a timestamp of data arrival time, and in the same QoS flow, data generated earlier in time needs to be transmitted preferentially so as to ensure that all data packets of the entire flow meet the low-delay requirement as much as possible; or priority identification, such as simply prioritizing the packet in the present QoS flow with 0, 1, more priority levels may be added. After the terminal receives the data packets and determines the priority of the data packets, the characteristic identifiers of the data packets can be reserved or removed; or

The terminal interprets the data packet and identifies the type of the data packet, for example, whether the data packet is a signaling type data packet, thereby determining the priority of the data packet.

And step 3: the terminal maps the arriving packets to corresponding DRB transmissions according to priority, e.g., packets identified in step 2 as requiring priority transmission are mapped to DRB1, and lower priority packets are mapped to DRB 2.

Example 3: take the mapping of the uplink QoS flow to N DRBs in a reflective QoS manner as an example.

step 1: the base station maps one downlink QoS flow to more than 1 DRB, and then the base station configures the QoS flow (identified by QFI) to more than 1 DRB (each DRB identified by one RB ID) in the RRC configuration signaling, and transmits downlink data on the configured DRB, for example, the QoS flow with QFI ═ 1 is mapped to two DRBs with DRB ID ═ 1 and DRB ID ═ 2. Mapping to one QoS flow onto two DRBs is exemplified below.

Step 2: the base station configures two uplink DRBs with DRB ID of 1 and DRB ID of 2 for the terminal, where the two DRBs respectively correspond to uplink logical channels 1 and 2, the uplink priority of logical channel 1 is 1, and the uplink priority of logical channel 2 is 2.

And step 3: the base station sends downlink data containing QFI-1 QoS flow on downlink DRBs with downlink DRB ID-1 and DRB ID-2, wherein the SDAP header carries QFI; and receiving uplink data of an uplink QoS flow with QFI of 1 at an uplink DRB with DRB ID of 1 and DRB ID of 2, and merging the data of a plurality of DRBs corresponding to the same QoS flow to a QoS flow delivery high layer.

step 1: receiving the configuration of a base station on a downlink DRB and an uplink DRB, wherein one downlink QoS flow is mapped to more than 1 DRB; the uplink is configured with the DRB, the corresponding logical channel and the logical channel priority, and the mapping relation from QoS flow to the DRB is not configured.

And 2, step: the terminal receives downlink data sent by the base station, receives a downlink DRB with DRB ID of 1, wherein the data contains QFI of 1, and then the terminal determines that QoS flow of uplink QFI of 1 is mapped to the uplink DRB with DRB ID of 1; and receiving the downlink DRB with the DRB ID of 2, wherein the data with the QFI of 1 is contained, and the terminal determines that the QoS flow of the uplink QFI of 1 is mapped to the uplink DRB with the DRB ID of 2. Up to this point, the terminal determines that the uplink QoS flow of QFI ═ 1 is mapped to two uplink DRBs of DRB ID ═ 1 and DRB ID ═ 2, and since the logical channels corresponding to the two DRBs of DRB ID ═ 1 and DRB ID ═ 2 have already been subjected to uplink priority setting, the terminal may perform data mapping on the data of the QoS flow of QFI ═ 1 according to the priority based on the uplink priority setting.

And step 3: the terminal determines the priority of each data packet in a QoS flow (according to the manner of the previous embodiments) and maps to the corresponding DRB for transmission when there is uplink data arrival according to the mapping and priority relationship from the uplink QoS flow to the DRB determined in step 2.

In the embodiment of the invention, a first communication device determines N Data Radio Bearers (DRBs) which meet data flow QoS flow mapping of service quality, wherein N is an integer greater than 1; the first communication device maps the packets of the QoS flow onto the N DRBs. Therefore, the data packet of QoS flow can be mapped to a plurality of DRBs, and the transmission rate of the communication system is improved.

Referring to fig. 4, fig. 4 is a flowchart of another data packet transmission method according to an embodiment of the present invention, as shown in fig. 4, including the following steps:

401. the second communication equipment receives data packets of the same QoS flow mapped by the first communication equipment through N DRBs respectively, wherein the QoS flow and the N DRBs form a mapping relation, and N is an integer greater than 1.

Optionally, the N DRBs include DRBs with different priorities;

and mapping the first data packet of the QoS flow onto a first DRB, and mapping the second data packet of the QoS flow onto a second DRB, wherein the priority of the logic channel corresponding to the first DRB is higher than that of the logic channel corresponding to the second DRB.

Optionally, the N DRBs mapped by the QoS flow are explicitly configured; alternatively, the first and second electrodes may be,

It should be noted that, this embodiment is used as an implementation of the second communication device side corresponding to the embodiment shown in fig. 2, and a specific implementation thereof may refer to the relevant description of the embodiment shown in fig. 2, so that, in order to avoid repeated descriptions, the present embodiment is not described again, and the same beneficial effects may also be achieved.

Referring to fig. 5, fig. 5 is a structural diagram of a communication device according to an embodiment of the present invention, where the communication device is a first communication device, and as shown in fig. 5, the communication device 500 includes:

a determining module 501, configured to determine N DRBs of a QoS flow map, where N is an integer greater than 1;

a mapping module 502, configured to map the QoS flow data packets onto the N DRBs.

Optionally, the N DRBs include DRBs with different priorities;

the mapping module 502 is configured to map a first data packet of the QoS flow onto a first DRB, and map a second data packet of the QoS flow onto a second DRB, where a priority of a logical channel corresponding to the first DRB is higher than a priority of a logical channel corresponding to the second DRB.

Optionally, the determining module 501 is configured to determine the N DRBs mapped by the QoS flow in an explicit configuration manner; alternatively, the first and second electrodes may be,

the determining module 501 is configured to determine the N DRBs mapped by the QoS flow by using a reflective QoS manner and through a mapping relationship between the QoS flow at the opposite end and the DRBs.

Optionally, the determining module 501 is configured to determine the N DRBs mapped by the QoS flow according to configuration information sent by a network side, where the configuration information carries a QoS flow ID and a corresponding DRB ID or a logical channel identifier LCID, and is used to indicate a rule for mapping the QoS flow to the N DRBs.

Optionally, the determining module 501 is configured to receive a data packet of the QoS flow sent by a second communication device, where the data packet of the QoS flow sent by the second communication device is mapped to N DRBs; and applying the mapping relation between the QoS flow and the DRB to the mapping between the QoS flow and the DRB when the first communication equipment sends data to the second communication equipment, and mapping the data packets with the same QoS flow ID to the same N DRB IDs.

It should be noted that, in this embodiment, the first communication device 500 may be the first communication device in any implementation manner in the method embodiment of the present invention, and any implementation manner of the first communication device in the method embodiment of the present invention may be implemented by the first communication device 500 in this embodiment, so as to achieve the same beneficial effects, and details are not described here again.

Referring to fig. 6, fig. 6 is a structural diagram of a communication device according to an embodiment of the present invention, where the communication device is a second communication device, and as shown in fig. 6, the communication device 600 includes:

a first receiving module 601, configured to receive a data packet of the same QoS flow that is mapped by a first communication device through N DRBs, where the QoS flow and the N DRBs are in a mapping relationship, where N is an integer greater than 1.

Optionally, the N DRBs include DRBs with different priorities;

Optionally, if the N DRBs of the QoS flow mapping are explicitly configured, as shown in fig. 7, the method further includes:

a second receiving module 602, configured to receive configuration information sent by a network side, where the configuration information carries a QoS flow ID and a corresponding DRB ID or LCID, and is used to indicate a rule that the QoS flow is mapped to the N DRBs.

Optionally, if the N DRBs mapped by the QoS flow are determined in a reflective QoS manner, as shown in fig. 8, the communication device 600 further includes:

a sending module 603, configured to send a QoS flow data packet to the first communication device, where the QoS flow data packet sent by the second communication device is mapped onto N DRBs, so that the first communication device applies a mapping relationship between QoS flow and DRBs to a mapping relationship between QoS flow and DRBs when the first communication device sends data to the second communication device, and maps data packets with the same QoS flow ID onto the same N DRB IDs, where the mapping relationship is a mapping relationship between QoS flow and DRBs to which the data packet belongs when the first communication device receives the data packet.

It should be noted that, in this embodiment, the second communication device 600 may be a second communication device in any implementation manner in the method embodiment of the present invention, and any implementation manner of the second communication device in the method embodiment of the present invention may be implemented by the second communication device 600 in this embodiment, and achieve the same beneficial effect, which is not described herein again.

Referring to fig. 9, fig. 9 is a structural diagram of another communication device according to an embodiment of the present invention, where the communication device is a first communication device, and as shown in fig. 9, the communication device includes: a transceiver 910, a memory 920, a processor 900, and a program stored on the memory 920 and executable on the processor 1200, wherein:

the processor 900 is configured to determine N DRBs of a QoS flow map, where N is an integer greater than 1;

the transceiver 910 is configured to map the QoS flow data packets onto the N DRBs;

alternatively, the first and second liquid crystal display panels may be,

the transceiver 910 is configured to determine N DRBs of a QoS flow map, where N is an integer greater than 1;

the transceiver 910 is further configured to map the data packets of the QoS flow onto the N DRBs.

The transceiver 910 may be used for receiving and transmitting data under the control of the processor 900, among other things.

In fig. 9, the bus architecture may include any number of interconnected buses and bridges, with various circuits representing one or more processors, in particular processor 900, and a memory, in particular memory 920. 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 bus interface provides an interface. The transceiver 910 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 900 is responsible for managing the bus architecture and general processing, and the memory 920 may store data used by the processor 900 in performing operations.

It should be noted that the memory 920 is not limited to be on the first communication device, and the memory 920 and the processor 900 may be separated in different geographical locations.

Optionally, the N DRBs include DRBs with different priorities;

Optionally, each data packet of the QoS flow is added with a specific identifier, and the priority of the data packet is determined according to the specific identifier; alternatively, the first and second electrodes may be,

and determining the priority of the data packet according to the type of the data packet of the QoS flow.

Optionally, the determining N DRBs mapped by QoS flow includes:

and determining the N DRBs mapped by the QoS flow through the mapping relation between the QoS flow and the DRBs in a reflection reflective QoS mode.

It should be noted that, in this embodiment, the first communication device may be the first communication device in any implementation manner in the method embodiment of the present invention, and any implementation manner of the first communication device in the method embodiment of the present invention may be implemented by the first communication device in this embodiment, so as to achieve the same beneficial effects, and details are not repeated here.

Referring to fig. 10, fig. 10 is a structural diagram of another communication device according to an embodiment of the present invention, where the communication device is a second communication device, and as shown in fig. 10, the communication device includes: a transceiver 1010, a memory 1020, a processor 1000, and a program stored on the memory 1020 and executable on the processor, wherein:

the transceiver 1010 is configured to receive a data packet of the same QoS flow mapped by N DRBs respectively by a first communication device, where the QoS flow and the N DRBs are in a mapping relationship, where N is an integer greater than 1.

The transceiver 1010 may be used to receive and transmit data under the control of the processor 1000.

In fig. 10, the bus architecture may include any number of interconnected buses and bridges, with various circuits being linked together, particularly one or more processors represented by processor 1000 and memory represented by memory 1020. 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 bus interface provides an interface. The transceiver 1010 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 1000 is responsible for managing the bus architecture and general processing, and the memory 1020 may store data used by the processor 1000 in performing operations.

It should be noted that the memory 1020 is not limited to be on the second communication device, and the memory 1020 and the processor 1000 may be separated in different geographical locations.

Optionally, the N DRBs include DRBs with different priorities;

Optionally, if the N DRBs of the QoS flow map are explicitly configured, the transceiver 1010 is further configured to:

Optionally, if the N DRBs mapped by the QoS flow are determined in a reflective QoS manner, before the second communication device receives data packets of the same QoS flow that are transmitted by the first communication device through the N DRBs, respectively, the transceiver 1010 is further configured to:

It should be noted that, in this embodiment, the second communication device may be the second communication device in any implementation manner in the method embodiment of the present invention, and any implementation manner of the second communication device in the method embodiment of the present invention may be implemented by the second communication device in this embodiment, so as to achieve the same beneficial effects, and details are not described here again.

In the several embodiments provided in the present application, it should be understood that the disclosed method and apparatus may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be physically included alone, or two or more units may be integrated into one unit. The integrated unit may be implemented in the form of hardware, or in the form of hardware plus a software functional unit.

The integrated unit implemented in the form of a software functional unit may be stored in a computer-readable storage medium. The software functional unit is stored in a storage medium and includes several instructions to enable a computer device (which may be a personal computer, a server, or a network device) to execute some steps of the processing method of the information data block according to various embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A method for transmitting a data packet, comprising:

the first communication equipment determines N Data Radio Bearers (DRBs) mapped by data flow QoS flow meeting the service quality, wherein N is an integer greater than 1;

the first communication device maps the data packets of the QoS flow onto the N DRBs;

wherein the N DRBs comprise DRBs with different priorities;

the first communication device maps the data packets of the QoS flow onto the N DRBs, including:

the first communication equipment maps a first data packet of the QoS flow onto a first DRB, and maps a second data packet of the QoS flow onto a second DRB, wherein the priority of a logical channel corresponding to the first DRB is higher than that of a logical channel corresponding to the second DRB;

each data packet of the QoS flow is added with a specific identifier, and the first communication equipment determines the priority of the data packet according to the specific identifier; alternatively, the first and second electrodes may be,

2. The method of claim 1, wherein the specific identifier is a time identifier or a priority identifier.

3. The method according to claim 2, wherein the specific identity is a specific identity added by a time sensitive network, TSN, or a core network.

4. The method of any of claims 1 to 3, wherein the first communication device determining N DRBs for a QoS flow mapping comprises:

5. The method of claim 4, wherein said first communications device determining said N DRBs of said QoS flow map by explicit configuration, comprising:

and the first communication equipment determines the N DRBs mapped by the QoS flow according to configuration information sent by a network side, wherein the configuration information carries a QoS flow ID and a corresponding DRB ID or a Logical Channel Identifier (LCID) and is used for representing a rule that the QoS flow is mapped to the N DRBs.

6. The method of claim 4, wherein the determining, by the first communication device, the N DRBs mapped by the QoS flow through a mapping relation between peer QoS flow and DRBs in a feedback reflective QoS manner comprises:

7. The method of claim 4, wherein the priority of the logical channels corresponding to the N DRBs is configured by a network side.

8. A method for transmitting a data packet, comprising:

the method comprises the steps that a second communication device receives data packets of the same QoS flow mapped by a first communication device through N DRBs respectively, wherein the QoS flow and the N DRBs form a mapping relation, and N is an integer greater than 1;

wherein the N DRBs comprise DRBs with different priorities;

mapping a first data packet of the QoS flow onto a first DRB, and mapping a second data packet of the QoS flow onto a second DRB, wherein the priority of a logical channel corresponding to the first DRB is higher than the priority of a logical channel corresponding to the second DRB;

9. The method of claim 8, wherein the specific identifier is a time identifier or a priority identifier.

10. The method according to claim 9, wherein the specific identity is a specific identity added by a time sensitive network, TSN, or a core network.

11. The method according to any of claims 8 to 10, wherein said N DRBs of said QoS flow map are explicitly configured; alternatively, the first and second electrodes may be,

12. The method of claim 11, wherein if the N DRBs of the QoS flow map are explicitly configured, the method further comprises:

13. The method of claim 11, wherein if the N DRBs of the QoS flow mapping are determined in a reflective QoS manner, before the second communication device receives a data packet of the same QoS flow transmitted by the first communication device through the N DRBs, the method further comprises:

14. The method of claim 11, wherein the priority of the logical channels corresponding to the N DRBs is configured by a network side.

15. A communication device, the communication device being a first communication device, comprising:

a determining module, configured to determine N DRBs of a QoS flow map, where N is an integer greater than 1;

a mapping module, configured to map the QoS flow data packets to the N DRBs;

wherein the N DRBs comprise DRBs with different priorities;

the mapping module is configured to map a first data packet of the QoS flow onto a first DRB, and map a second data packet of the QoS flow onto a second DRB, where a priority of a logical channel corresponding to the first DRB is higher than a priority of a logical channel corresponding to the second DRB;

the determining module is configured to determine the N DRBs of the QoS flow mapping in an explicit configuration manner; alternatively, the first and second electrodes may be,

16. A communication device, the communication device being a second communication device, comprising:

a sending module, configured to receive a data packet of the same QoS flow that is mapped by a first communication device through N DRBs, respectively, where the QoS flow and the N DRBs form a mapping relationship, where N is an integer greater than 1;

wherein the N DRBs comprise DRBs with different priorities;

mapping a first data packet of the QoS flow onto a first DRB, and mapping a second data packet of the QoS flow onto a second DRB, wherein the priority of a logic channel corresponding to the first DRB is higher than that of a logic channel corresponding to the second DRB;

the N DRBs of the QoS flow map are explicitly configured; alternatively, the first and second electrodes may be,

17. A communication device, the communication device being a first communication device, comprising: a transceiver, a memory, a processor, and a program stored on the memory and executable on the processor,

alternatively, the first and second electrodes may be,

the transceiver is further configured to map the packets of the QoS flow onto the N DRBs;

wherein the N DRBs comprise DRBs with different priorities;

the mapping the data packets of the QoS flow onto the N DRBs includes:

mapping a first data packet of the QoS flow onto a first DRB, and mapping a second data packet of the QoS flow onto a second DRB, wherein the priority of a logical channel corresponding to the first DRB is higher than that of a logical channel corresponding to the second DRB;

18. The apparatus of claim 17, wherein determining N DRBs of a QoS flow map comprises:

19. The apparatus of claim 18, wherein said explicitly configuring said determining said N DRBs of said QoS flow map comprises:

20. The apparatus of claim 18, wherein the determining the N DRBs mapped by the QoS flow by mapping relationship between peer QoS flow and DRBs in a reflective QoS manner comprises:

21. A communication device, the communication device being a second communication device, comprising: a transceiver, a memory, a processor, and a program stored on the memory and executable on the processor,

the transceiver is configured to receive a data packet of the same QoS flow mapped by N DRBs respectively by a first communication device, where the QoS flow and the N DRBs are in a mapping relationship, where N is an integer greater than 1;

wherein the N DRBs comprise DRBs with different priorities;

22. The apparatus of claim 21, wherein the N DRBs of the QoS flow map are explicitly configured; alternatively, the first and second electrodes may be,

23. The apparatus of claim 22, wherein if the N DRBs of the QoS flow map are explicitly configured, the transceiver is further for:

24. The apparatus of claim 22, wherein if the N DRBs of the QoS flow map are determined in a reflective QoS manner, the transceiver is further configured to, before receiving a data packet of a same QoS flow transmitted by the first communication device through the N DRBs, respectively:

25. A computer-readable storage medium, on which a computer program is stored, which program, when being executed by a processor, carries out the steps in the method for transmission of data packets according to any one of claims 1 to 7, or which program, when being executed by a processor, carries out the steps in the method for transmission of data packets according to any one of claims 8 to 14.