CN110769438B

CN110769438B - EBI allocation and request method and device, storage medium, network equipment and terminal

Info

Publication number: CN110769438B
Application number: CN201810841886.0A
Authority: CN
Inventors: 周宗明; 金逸; 尉霞
Original assignee: Spreadtrum Communications Shanghai Co Ltd
Current assignee: Spreadtrum Communications Shanghai Co Ltd
Priority date: 2018-07-27
Filing date: 2018-07-27
Publication date: 2022-06-14
Anticipated expiration: 2038-07-27
Also published as: CN110769438A

Abstract

An EBI allocation method, an EBI request method, an EBI allocation device, a storage medium, network equipment and a terminal are provided, wherein the allocation method comprises the following steps: receiving PDU session information sent by user equipment, wherein the PDU session information at least comprises a PDU session identifier and an indication identifier, and the indication identifier is used for indicating that the user equipment expects a network to distribute EBI for the PDU session pointed by the PDU session identifier; and preferentially distributing EBI for the QoS flow in the PDU session pointed by the PDU session identification in the PDU session information to obtain EBI configuration information. By the scheme of the invention, when the network distributes the PDU session/QoS flow EBI, the PDU session of the EBI expected to be distributed by the UE can be comprehensively considered, the network is prevented from blindly configuring the EBI for the UE, and the user experience is improved.

Description

EBI allocation and request method and device, storage medium, network equipment and terminal

Technical Field

The present invention relates to the field of wireless communication technologies, and in particular, to an EBI allocation method, an EBI request method, an EBI allocation apparatus, a EBI request apparatus, a storage medium, a network device, and a terminal.

Background

Fifth Generation mobile communications (5G) systems are to be deployed in The future. An interface may or may not be provided between a 5G core network and a Fourth-Generation mobile communications (4G) core network, depending on The configuration of an operator. If there is an interface, the interface connects an Access and Mobility Management Function (AMF) of the 5G core network and a Mobility Management Entity (MME) of the 4G core network, which is called an N26 interface.

When a Protocol Data Unit Session (PDU Session) is established, one or more Quality of Service (QoS) flows (flows) may be established between the UE and the network. After the PDU session is established, the QoS flow for the PDU session may be added, modified, or deleted by a PDU session modification procedure.

When there is an N26 interface, in order to support switching from a PDU session of 5G to a PDN (Packet Data Network, PDN for short) connection of 4G, the 5G core Network may determine whether to assign one or more or all QoS streams therein to corresponding 4G Evolved Packet System Bearer identifiers (EBI for short), and configure corresponding Evolved Packet System (EPS) QoS parameters, and these parameters and their corresponding relationships with the 5G QoS parameters need to be sent to the UE. The EBI corresponds to a QoS Flow Identifier (QFI for short) of the 5G, and the EPS QoS parameter of the EBI corresponds to the 5G QoS parameter of the 5G QoS Flow indicated by the QFI corresponding to the EBI.

With the N26 interface, if the UE switches from the 5G system to the 4G system, it may not switch to the 4G system if any QoS flow of the PDU session is not allocated to the EBI. If there are multiple QoS flows in the PDU session, the QoS flow configured with EBI may only be switched to an EPS bearer corresponding to a 4G system Packet Data Network (PDN) connection, and the QoS flow not configured with EBI may not be switched.

However, the 5G core network decides to allocate the EBI to the QoS flow of which PDU session, allocate the EBI to the specific QoS flow of the PDU session and map to the corresponding EPS QoS parameter according to what reason, and the current specification is completely decided by the 5G core network itself, and does not consider the requirement of the User Equipment (UE for short) side.

Disclosure of Invention

The technical problem solved by the invention is how to consider the expectation of the UE and reasonably allocate the EBI for the QoS Flow of the PDU conversation of the UE according to the expectation of the UE so as to avoid the blind configuration of the EBI by a network and improve the user experience.

In order to solve the foregoing technical problem, an embodiment of the present invention provides an EBI allocation method, where the EBI allocation method includes: receiving PDU session information sent by user equipment, wherein the PDU session information at least comprises a PDU session identifier and an indication identifier, and the indication identifier is used for indicating that the user equipment expects a network to distribute EBI for the PDU session pointed by the PDU session identifier; and preferentially distributing EBI for the QoS flow in the PDU session pointed by the PDU session identification in the PDU session information to obtain EBI configuration information.

Optionally, the preferentially allocating EBI for the QoS flow in the PDU session pointed to by the PDU session identifier in the PDU session information includes: determining the network side priority of each PDU session pointed by the PDU session identification in the PDU session information; and allocating the EBI for the QoS flow in each PDU session according to the sequence from high priority to low priority on the network side.

Optionally, the PDU session information further includes: the preferentially allocating EBI for the QoS flow in the PDU session pointed to by the PDU session identifier in the PDU session information preferentially includes: determining the network side priority of each PDU session according to the UE side priority of each PDU session, wherein the network side priority allocates the EBI priority for the network; distributing EBI for the QoS flow in each PDU conversation according to the sequence from high priority to low priority of the network side; wherein the UE side priority is a priority that the UE expects to allocate the EBI for the PDU session pointed by the PDU session identification.

Optionally, the allocating EBI to the QoS flow in each PDU session according to the sequence from high priority to low priority at the network side includes: and if the current PDU session has no available EBI and the PDU session with the network side priority lower than that of the current PDU session exists in the PDU sessions with the allocated EBI, releasing the EBI of the PDU session with the network side priority lower than that of the current PDU session, and reallocating the EBI to the QoS flow in the current PDU session.

Optionally, the releasing the EBI of the QoS flow in the PDU session with the priority lower than that of the current PDU session on the network side includes: and for the PDU conversation with the priority lower than the current PDU conversation on the network side, releasing the EBI of the QoS flow in the PDU conversation with the priority lower than the current PDU conversation on the network side according to the sequence from the low priority to the high priority on the network side.

Optionally, the PDU session information further includes: the PDU session identification points to a QoS flow identification for at least one QoS flow in the PDU session, the QoS flow pointed to by the QoS flow identification being a QoS flow for which the UE desires to allocate an EBI.

Optionally, the preferentially allocating EBI for the QoS flow in the PDU session pointed to by the PDU session identifier in the PDU session information includes: determining the network side priority of the QoS flow pointed by each QoS flow identification; and allocating the EBI for each QoS flow from high priority to low priority on the network side.

Optionally, the preferentially assigning the EBI to the QoS flow in the PDU session pointed to by the PDU session identifier in the PDU session information, where the UE-side priority of the QoS flow pointed to by each QoS flow identifier includes: determining the network side priority of the QoS flow pointed by each QoS flow identification according to the UE side priority of the QoS flow pointed by each QoS flow identification; allocating EBIs for each QoS flow according to the sequence from high priority to low priority of a network side; wherein the UE side priority is a priority that the UE expects to allocate the EBI for the PDU session pointed by the PDU session identification.

Optionally, the allocating EBI to the QoS flow in each PDU session according to the sequence from high priority to low priority at the network side includes: if the current QoS flow has no available EBI and a QoS flow with the network side priority lower than that of the current QoS flow exists in the QoS flows with the allocated EBI, releasing the EBI of the QoS flow with the network side priority lower than that of the current QoS flow and reallocating the EBI to the current QoS flow.

Optionally, the releasing the EBI of the QoS flow with the network side lower priority than the current QoS flow includes: and for the QoS flow with the network side priority lower than the current QoS flow, releasing the EBI of the QoS flow with the network side priority lower than the current QoS flow according to the sequence from the low network side priority to the high network side priority.

Optionally, the network side priority allocates an EBI priority to the network.

Optionally, the EBI configuration information includes: the PDU session identification, the QoS flow identification of the QoS flow in the PDU session and the EBI of the QoS flow pointed by the QoS flow identification.

Optionally, the PDU session information is transmitted through a PDU session setup request message, a PDU session modification request message, a predefined NAS message, an AS message, or a short message.

Optionally, the method for allocating an EBI further includes: and sending the EBI configuration information to the user equipment.

Optionally, the EBI configuration information is transmitted by a PDU session setup accept message, a PDU session modification command message, a predefined NAS message, an AS message, a short message, or an over-the-air technology.

In order to solve the foregoing technical problem, an embodiment of the present invention further provides an EBI request method, where the EBI request method includes: determining PDU session information, wherein the PDU session information at least comprises a PDU session identifier and an indication identifier, and the indication identifier is used for indicating that the user equipment expects a network to allocate EBI for the PDU session pointed by the PDU session identifier; and sending PDU session information to a network so that the network preferentially distributes EBI for the QoS flow in the PDU session pointed by the PDU session identification in the PDU session information to obtain EBI configuration information.

Optionally, the PDU session information further includes: and the UE side priority of the PDU session pointed to by the PDU session identification is the priority that the UE expects to allocate the EBI to the PDU session pointed to by the PDU session identification.

Optionally, the PDU session information further includes: the PDU session identification points to at least one QoS flow identification in the PDU session, and the QoS flow pointed to by the QoS flow identification is the QoS flow which the UE desires to allocate the EBI.

Optionally, the PDU session information further includes: and the UE side priority of the QoS flow pointed by each QoS flow identification is the priority that the UE expects to allocate the EBI for the PDU session pointed by the PDU session identification.

Optionally, the EBI configuration information includes: the PDU session identification, the QoS flow identification in the PDU session and the EBI of the QoS flow pointed by the QoS flow identification.

Optionally, the EBI request method further includes: receiving the EBI configuration information from the network.

To solve the above technical problem, an embodiment of the present invention further provides an EBI allocation apparatus, where the EBI allocation apparatus includes: the receiving module is suitable for receiving PDU session information sent by user equipment, wherein the PDU session information at least comprises a PDU session identifier and an indication identifier, and the indication identifier is used for indicating that the user equipment expects a network to allocate EBI for the PDU session pointed by the PDU session identifier; and the distribution module is suitable for preferentially distributing the EBI for the QoS flow in the PDU session pointed by the PDU session identification in the PDU session information so as to obtain the EBI configuration information.

To solve the foregoing technical problem, an embodiment of the present invention further provides an EBI request apparatus, where the EBI request apparatus includes: the determining module is suitable for determining PDU session information, wherein the PDU session information at least comprises a PDU session identifier and an indication identifier, and the indication identifier is used for indicating that the user equipment expects a network to allocate EBI for the PDU session pointed by the PDU session identifier; and the sending module is suitable for sending the PDU session information to a network so that the network preferentially distributes EBI for the QoS stream in the PDU session pointed by the PDU session identification in the PDU session information to obtain EBI configuration information.

To solve the above technical problem, an embodiment of the present invention further provides a storage medium, on which computer instructions are stored, and the computer instructions execute the steps of the EBI allocation method or the EBI request method when executed.

In order to solve the foregoing technical problem, an embodiment of the present invention further provides a network device, including a memory and a processor, where the memory stores computer instructions executable on the processor, and the processor executes the steps of the EBI allocation method when executing the computer instructions.

In order to solve the foregoing technical problem, an embodiment of the present invention further provides a terminal, including a memory and a processor, where the memory stores computer instructions executable on the processor, and the processor executes the steps of the EBI request method when executing the computer instructions.

Compared with the prior art, the technical scheme of the embodiment of the invention has the following beneficial effects:

the embodiment of the invention provides an EBI distribution method, which comprises the following steps: receiving PDU session information sent by user equipment, wherein the PDU session information at least comprises a PDU session identifier and an indication identifier, and the indication identifier is used for indicating that the user equipment expects a network to distribute EBI for the PDU session pointed by the PDU session identifier; and preferentially distributing EBI for the QoS flow in the PDU session pointed by the PDU session identification in the PDU session information to obtain EBI configuration information. By the technical scheme provided by the embodiment of the invention, the network can make sure that the UE expects to allocate the PDU conversation/QoS flow of the EBI, the PDU conversation requirement of the UE is fully considered, the EBI is preferentially allocated to the QoS flow in the PDU conversation pointed by the PDU conversation mark in the PDU conversation information, the blind allocation of the EBI by the network is avoided, the EBI is allocated to the UE in a more reasonable allocation mode, and the user experience can be effectively improved.

Further, the PDU session information further includes: according to the technical scheme provided by the embodiment of the invention, according to the UE side priority uploaded by the UE, the network can know the PDU session expected to be allocated with the EBI by the UE and the priority expected to be allocated with the EBI by the UE, the requirement that the PDU session of the UE is expected to be allocated with the EBI is further considered, the blind allocation of the EBI by the network is avoided, the EBI is allocated for the UE in a more reasonable allocation mode, and the user experience can be effectively improved.

Further, the PDU session information further includes: and the PDU conversation identification points to the QoS flow identification in the PDU conversation and the UE side priority of the QoS flow pointed by the QoS flow identification. By the technical scheme provided by the embodiment of the invention, the network can further determine the priority of the QoS flow pointed by the QoS flow identifier of the EBI expected to be obtained by the UE, and the EBI can be configured for the QoS flow identifier according to the priority, so that the user experience is improved.

Further, for the PDU session with the priority lower than the current PDU session, the EBIs of the QoS flows in the PDU session with the priority lower than the current PDU session are released according to the sequence from low priority to high priority. By the technical scheme provided by the embodiment of the invention, the EBI of the QoS flow with the lowest priority on the network side can be released preferentially.

Drawings

Fig. 1 is a schematic flow chart of an EBI allocation method according to an embodiment of the present invention;

fig. 2 is a schematic diagram of signaling interaction in an EBI allocation method according to an embodiment of the present invention;

fig. 3 is a schematic signaling interaction diagram in another EBI allocation method according to an embodiment of the present invention;

FIG. 4 is a diagram illustrating an exemplary application of an EBI allocation method according to an embodiment of the present invention;

FIG. 5 is a flow chart illustrating a method for requesting an EBI according to an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of an EBI distribution device according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of an EBI requesting apparatus according to an embodiment of the present invention.

Detailed Description

As described in the background art, in the prior art, a 5G core network determines, according to what reason, to allocate an EBI to a QoS flow of a PDU session, and to allocate an EBI and a corresponding EPS QoS parameter to a specific QoS flow of the PDU session, the current specification is completely the 5G core network itself, and the requirement of a UE side is not considered, which may cause that a QoS flow that a network allocates an EBI to a UE is not a QoS flow that the UE desires, and user experience is affected.

As a non-limiting example, the UE is in a mobile remote connection with a company's network for a conference call, and it is clear from the user's perspective that the conference call is intended to be carried out smoothly without interruption or even without seizure. Background services such as File Transfer Protocol (FTP) files and the like have no stuck requirements.

As yet another non-limiting example, a user may be remotely moving a real-time video (e.g., of an industrial site) and directing live personnel based on the observed video results, which may affect the timeliness and effectiveness of the direction if a jam occurs midway through.

As another non-limiting example, a user may have multiple dataclass-based applications in the process of running. Typical applications may include video on demand services, online gaming, video browsing, online live broadcasting, etc. Only one interface can be displayed for the current user, and for the user, the application service displayed by the interface is expected to keep good service continuity. The application serves the corresponding PDU session for which the EBI assigned by the network may be of lower priority.

The embodiment of the invention provides an EBI distribution method, which comprises the following steps: for each PDU session between the PDU session and user equipment, if the PDU session information sent by the user equipment contains a priority indication of the expected EBI distribution of the UE, the PDU session with the high priority indication is preferentially distributed with the EBI so as to obtain the EBI configuration information; and sending the EBI configuration information to the user equipment. By the technical scheme provided by the embodiment of the invention, the network can make sure that the UE expects to allocate the PDU conversation/QoS flow of the EBI, the PDU conversation requirement of the UE is fully considered, the EBI is preferentially allocated to the QoS flow in the PDU conversation pointed by the PDU conversation mark in the PDU conversation information, the blind allocation of the EBI by the network is avoided, the EBI is allocated to the UE in a more reasonable allocation mode, and the user experience can be effectively improved.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

Fig. 1 is a schematic flow chart of an EBI allocation method according to an embodiment of the present invention. The EBI allocation method can be applied to a core network on the network side. For example, when there is an N26 interface between the 5G core network and the 4G core network, to support handover between the 5G network and the 4G network, the 5G core network may configure EBI for the PDU session of the UE or the QoS flow in the PDU session.

Specifically, the method for allocating the EBI may include the steps of:

step S101, receiving PDU session information sent by user equipment, wherein the PDU session information at least comprises a PDU session identifier and an indication identifier, and the indication identifier is used for indicating that the user equipment expects a network to distribute EBI for the PDU session pointed by the PDU session identifier;

step S102, preferentially distributing EBI for the QoS flow in the PDU session pointed by the PDU session identification in the PDU session information to obtain EBI configuration information.

More specifically, in step S101, the core network on the network side may establish multiple PDU sessions with the UE. If the core network receives the PDU session information sent by the UE, the EBI can be configured for the UE according to the PDU session information.

Wherein the indication identifier may be used to indicate that the user equipment desires a network (e.g., a core network) to allocate an EBI for the PDU session pointed to by the PDU session identifier. Through the indication mark, the network can know that the UE expects to allocate the EBI for the QoS flow of the PDU session pointed by the PDU mark carried in the PDU session information.

Specifically, after the UE determines the PDU session or QoS flow for which it desires to allocate EBI, the UE may send the PDU session for which EBI allocation is desired (e.g., the PDU session indicated by the PDU session identifier) and the priority information (i.e., UE-side priority) determined according to the PDU session for which EBI allocation is desired to the core network.

In specific implementation, the PDU session information transmission process is specifically described by taking a 5G network as an example. Referring to fig. 2, the UE may first perform operation s1, i.e. determine PDU session information, which includes a PDU session identity and an indication identity.

With continued reference to fig. 2, the UE performs operation s2 after performing operation s1, that is, the UE may transmit the PDU SESSION information through a PDU SESSION establishment REQUEST (PDU SESSION establishment REQUEST) message, a PDU SESSION MODIFICATION REQUEST (PDU SESSION MODIFICATION REQUEST) message, a Non-Access Stratum (NAS) message defined by the 3rd Generation Partnership Project (3 GPP) protocol; or transmitting the PDU session message in a mode of transmitting AN Access Network (Access Network, AN for short) to a core Network (for example, 5GC) through AN Access Stratum (AS for short) message; or transmitting the PDU session information to a 5G core network (namely 5GC) by a Short Message (Short Message) or other modes.

Specifically, the PDU session information is sent to the 5GC through a 5G Access Network (5G Access Network, referred to as 5G-AN). It should be noted that, if the 5G-AN is a Non-3GPP access network (e.g., Wi-Fi network), the 5G-AN and a Non-3GPP interworking Function (Non-3GPP Inter-Working Function, abbreviated as N3IWF) are sent to the 5 GC.

After receiving the PDU session information, the network may know that, for the UE sending the PDU session information, the priority of the PDU session not included in the PDU session information is lower than that of the PDU session included in the PDU session information, and the network may temporarily ignore each PDU session not included in the PDU session information when allocating EBI.

As a non-limiting embodiment, the PDU session information may also include UE-side priorities of PDU sessions at the same time, so that the core network can explicitly know the UE-side priorities of each PDU session for which the UE desires to allocate an EBI.

It should be noted that the UE side priority refers to a priority that the UE expects to allocate an EBI to the PDU session pointed to by the PDU session identifier, and is determined by the UE according to its own session requirement of each PDU.

As a variation, the PDU session information may further include, in addition to the PDU session identifier, the indication identifier, and the UE side priority of the PDU session, a QoS flow identifier of one or more QoS flows that are expected to be allocated with EBIs in the PDU session pointed to by the PDU session identifier, where the QoS flow pointed to by the QoS flow identifier is the QoS flow that the UE is expected to be allocated with EBIs. If the UE desires to allocate EBIs for only a portion of the QoS flows in the PDU session, the PDU session information may only upload the QoS flow identification of the QoS flow for which the UE desires to allocate an EBI.

As a further variant, the PDU session information may include, in addition to the PDU session identification, the indication identification, the UE-side priority of the PDU session, and the QoS flow identification of the QoS flow for which one or more EBIs desired to be allocated for the PDU session, the UE-side priority of the QoS flow to which each included QoS flow identification points.

Taking fig. 3 as an example, the UE may first perform operation s 1', that is, determine PDU session information, where the PDU session information may include a PDU session identifier, the indication identifier, the UE-side priority of the PDU session, and the QoS flow identifier of one or more QoS flows in the PDU session for which EBI is desired to be allocated, and the UE-side priority of the QoS flow pointed to by each included QoS flow identifier.

Referring to fig. 3, operation s2 'is performed after the UE performs operation s 1', i.e., the UE may transmit the PDU session information through a PDU session setup request message, a PDU session modification request message, through a predefined NAS message; or the PDU session message is transmitted to the AN through the AS message and then transmitted to the 5GC by the AN; or transmitting the PDU session information to the 5GC by a short message or other modes.

Specifically, the PDU session information may be transmitted to the 5GC through the 5G-AN. It should be noted that, if the 5G-AN is a non-3GPP access network (e.g., Wi-Fi network), the information may be sent to the 5GC through the 5G-AN and the N3 IWF.

After receiving the PDU session information, the network may know that the QoS flows not included in the PDU session information have a lower priority than the QoS flows included in the PDU session information, and the network may temporarily ignore the respective QoS flows not included in the PDU session information when allocating EBIs.

After receiving the PDU session information, the network integrates the locally stored information of all PDU sessions, and can know the PDU sessions that all UEs desire to allocate EBI and the UE-side priorities thereof, or can know that all UEs do not indicate the PDU sessions that desire to allocate EBI. Wherein, the UE side priority of the PDU session not included in the PDU session information is lower than the UE side priority of the PDU session included in the PDU session information, and the network may temporarily ignore each PDU session not included in the PDU session information when allocating EBI. Preferably, if the PDU session information includes UE-side priority of QoS flow, the network integrates all locally stored PDU session information, and can also know QoS flow and QoS flow priority of which all UEs desire to allocate EBI, and all UEs do not indicate QoS flow desired to allocate EBI.

In step S102, based on the indication identifier in the PDU session information and in combination with each PDU session pointed by the PDU session identifier in the PDU session information, the 5GC may learn the PDU session to which the UE desires to allocate the EBI.

Then, the 5GC may perform priority ranking on each PDU session pointed to by the PDU session identifier in the PDU session information, determine the network side priority of each PDU session, and allocate EBI to each PDU session according to the sequence from high to low of the network side priority, so as to obtain EBI configuration information.

The network side priority refers to the priority of the network side, which is obtained by fully considering the UE side priority uploaded by the UE and the priority of the network side for distributing the EBI determined by the self configuration. The network side priority covers the UE side priority, and the network side priority is the priority of final EBI allocation.

As a non-limiting embodiment, the PDU session information may further include a UE side priority of the PDU session in addition to the PDU session identifier and the indication identifier. In this case, referring to fig. 2, the 5GC may perform operation s3, that is, the 5GC may determine the network side priority of each PDU session according to each PDU session pointed to by the PDU session identifier in the PDU session information and the priority ranking of each PDU session. More specifically, for each PDU session in the PDU session information, the 5GC may determine the network side priority of the PDU session according to the UE side priority of the PDU session and then integrate the network side factors.

Specifically, the 5GC may first combine the UE-expected priority information reported by the UE and other information (for example, Policy Control Function (PCF) information) on the network side, and based on the order of the UE-side priorities from high to low, the network may sufficiently know the UE-side priority of each PDU session where the UE expects to allocate the EBI, and finally form the network-side priority. It should be noted that the network side priority determined by the network side is not limited by the UE side priority, and depends only on the determination of the network itself.

And determining the network side priority of each PDU session, preferentially meeting the PDU session which the UE expects to allocate the EBI, and allocating the EBI for the QoS flow in the PDU session.

As a variation, when the PDU session information includes the PDU session identifier, the indication identifier, and the UE side priority of the PDU session identifier, the PDU session information further includes QoS flow identifiers of one or more QoS flows in the PDU session pointed to by the PDU session identifier.

As another variation, when the PDU session information includes the PDU session identifier, the UE side priority of the indication identifier and the PDU session identifier, and the QoS flow identifier of one or more QoS flows in the PDU session pointed to by the PDU session identifier, the UE side priority of the QoS flow pointed to by each QoS flow identifier may also be included.

With continued reference to fig. 3, the 5GC may perform operation s 3', that is, the network side priority may be determined according to the UE side priority of the PDU session and the UE side priority of the QoS flow pointed to by the QoS flow identifier. The 5GC can allocate EBIs for the QoS flow in the PDU session according to the sequence from high to low of the network side priority to obtain EBI configuration information.

In specific implementation, if the 5GC includes available EBIs, the 5GC may sequentially allocate the available EBIs to QoS flows in a PDU session according to a priority order of the PDU session determined by a network side priority.

As a variation, if the 5GC does not currently have an available EBI allocated to the PDU session that the UE desires to allocate the EBI, at this time, the 5GC may compare the priority of the PDU session or QoS flow currently applying for the EBI with the priorities of all other PDU sessions or QoS flows that have been allocated with EBI before in the network side priority. If there is a lower priority PDU session or a lower priority QoS flow to which an EBI has already been allocated, the EBI of the lower priority QoS flow may be released in order from the lower priority to the higher priority on the network side, and the released EBI may be reallocated to the current PDU session or the current QoS flow to provide for the PDU session (e.g., the QoS flow in the current PDU session) or the current QoS flow currently applying for the EBI.

As a non-limiting embodiment, in a specific implementation, if the network side prioritization is performed based on each PDU session, for a PDU session with a network side priority lower than the network side priority of the PDU session of the current PDU session, the EBIs of the QoS flows in the PDU session with the network side priority lower than the current PDU session may be sequentially released according to the order from low to high of the network side priority of the PDU session, for example, the EBIs of the QoS flows in the PDU session with the lowest network side priority may be released first.

As a variation, in specific implementation, if the network side priority ranking is performed based on each QoS flow, for a QoS flow with a lower network side priority than the current QoS flow, when releasing the EBI of a QoS flow with a lower network side priority, the network may first release the EBI of a QoS flow with a lowest network side priority according to the network side priority order of each QoS flow, so that the network may avoid releasing the EBI of other QoS flows with higher priorities as much as possible while ensuring that the QoS flow of a PDU session with a higher priority can be allocated to the EBI.

Further, the network sends the EBI configuration information to the UE. The EBI configuration information may include the PDU session identifier, a QoS flow identifier corresponding to a QoS flow in a PDU session pointed to by the PDU session identifier, and an EBI of the QoS flow pointed to by the QoS flow identifier.

With continued reference to fig. 2, the 5GC may perform operation s4, i.e., transmit the EBI configuration information to the UE. Specifically, if connected to the 5GC through the non-3GPP access, the EBI configuration information may be transmitted from the 5GC to the UE through the N3IWF and the 5G-AN, and if connected to the 5GC through the 3GPP access, the configuration information may be transmitted from the 5GC to the UE through the 5G-AN.

With continued reference to fig. 3, the 5GC may perform operation s 4', i.e., transmit the EBI configuration information to the UE. Specifically, if connected to the 5GC through the non-3GPP access, the EBI configuration information may be transmitted from the 5GC to the UE through the N3IWF and the 5G-AN, and if connected to the 5GC through the 3GPP access, the configuration information may be transmitted from the 5GC to the UE through the 5G-AN.

It should be noted that the EBI configuration information may be transmitted to the UE through a PDU session setup accept message, a PDU session modification command message, a predefined NAS message, an AS message, a short message, or an Over-the-Air Technology (OTA for short), or the like.

The signaling interaction between the access network on the network side and each functional network element inside the core network according to the embodiments of the present invention will be further described below with reference to a typical application scenario.

In a typical application scenario, referring to fig. 4, a network may include AN Access network (i.e., AN) and network elements (i.e., Access and Management Function (AMF) network elements, Session Management Function (SMF) network elements, and/or PCF network elements, and SMF2) of a 5G core network (i.e., fig. 5 GC).

Those skilled in the art understand that for simplicity, fig. 4 does not show the N3IWF between AN and 5GC for non-3GPP access.

In particular implementation, first, the AN may perform operation s0, that is, the AN sends the received PDU session information to the 5G core network.

Secondly, the SMF/PCF may perform operation s1, that is, when the SMF applies for the EBI to the AMF, the UE side priority in the PDU session information sent by the UE may be sent to the AMF. Preferably, the SMF may form priority indication information (e.g., network side priority) according to the UE side priority in the PDU session information and by integrating local policy and/or information from the PCF, and send the priority indication information to the AMF.

Again, the AMF performs operations s21, s22, and s23, that is, according to the priority indication information obtained from the SMF or the UE side priority information, and integrates other information on the network side (e.g., information from PCF, negotiation result of other SMF (e.g., SMF2), information on local AMF and access network AN, etc.), to form priority information on the network side (e.g., network side priority), and according to the priority information on the network side, the AMF may generate AN EBI allocation policy, which may preferentially meet EBI allocation requirement of the UE desiring to configure EBI, configure EBI for a PDU session (e.g., QoS flow in the PDU session) of the UE (not shown), and map the QoS parameter of the EBI to the EPS QoS parameter. When the 5G core network has no EBI available, the AMF may compare the network side priority of the PDU session or QoS flow in the PDU session currently applying for EBI with the network side priority of other PDU sessions or QoS flows to which EBI has been previously allocated to determine whether to allocate EBI for the QoS flow in the PDU session currently applying for EBI.

Thereafter, the 5GC performs operation s3, and the SMF transmits to the AN through the AMF, and then the AN forwards to the UE (not shown). That is, if there is AN available EBI, the EBI may be allocated to the QoS flow in the PDU session currently applying for EBI to obtain EBI configuration information, and the EBI configuration information is sent to the AN. Further, the AN may send the EBI configuration information to the UE (not shown).

As a variation, if there is no available EBI, it may attempt to allocate an EBI corresponding to a lower priority QoS flow to the QoS flow in the PDU session, that is, if there is a lower priority QoS flow to which an EBI has been allocated in 5GC, the AMF may perform operation s41, that is, release the EBI corresponding to the low priority QoS flow in order from the network side priority to the network side priority, and send the release indication information to the corresponding SMF (e.g., SMF2), thereby obtaining the EBI configuration information for the SMF2 to allocate the EBI to the UE. Thereafter, the 5GC performs operation s3, and the SMF sends the EBI configuration information to the AN through the AMF, and finally the AN transmits the EBI configuration information to the UE (not shown). Alternatively, if the 5GC determines to allocate EBI for the QoS flow in the PDU session using the release indication information, the 5GC may send the EBI configuration information to the AN once determining the EBI configuration information, and finally transmitted by the AN to the UE (not shown).

Further, the AMF performs operation s42, i.e. the AMF feeds back the allocation result to the SMF, which may include whether the EBI information was successfully allocated. In addition, when an EBI is successfully allocated, the allocation result may further include a corresponding QoS flow identification and a corresponding EBI. To this end, the 5GC completes EBI allocation to the UE.

Fig. 5 is a flowchart illustrating an EBI request method according to an embodiment of the present invention. The EBI request method may be applied to a user equipment side. Referring to fig. 5, in particular, the method for requesting an EBI may include the steps of:

step S201, determining PDU session information, wherein the PDU session information at least comprises a PDU session identifier and an indication identifier, and the indication identifier is used for indicating that the user equipment expects a network to distribute EBI for the PDU session pointed by the PDU session identifier;

step S202, PDU session information is sent to the network, so that the network preferentially distributes EBI for the QoS flow in the PDU session pointed by the PDU session identification in the PDU session information, and EBI configuration information is obtained.

More specifically, in step S201, the UE may determine a PDU session or a QoS flow in a PDU session for which EBI is desired to be allocated. Thereafter, the UE may determine a PDU session for which EBI is desired to be allocated and an indication that the PDU session is desired to obtain EBI as the PDU session information.

In a specific implementation, the indication identifier may be used to indicate that the user equipment desires the network to allocate an EBI for the PDU session pointed to by the PDU session identifier.

In specific implementation, the UE may determine a corresponding PDU session and a priority of the PDU session according to a PDU session requirement (e.g., an address, a port number, a peer type, an IP Protocol number, and other information) provided by a higher layer (e.g., an application layer).

As a non-limiting example, a PDU session of Ethernet (Ethernet) type may determine a corresponding QoS flow based on a source physical (MAC) address, a destination MAC address, an Ethernet type, and other information. In case of an Unstructured (Unstructured) type PDU session, there is currently only one QoS flow and no matching is required. If the 3GPP organization extends the PDU session of the non-structure type to support multiple QoS flows in the future, the corresponding QoS flow can be determined by using the above method.

Preferably, the PDU session information may include, in addition to the PDU session identifier and the indication identifier, a UE side priority of the PDU session pointed to by the PDU session identifier.

Preferably, the PDU session information may further include a QoS flow identifier of a QoS flow in the PDU session identifier, in addition to the PDU session identifier, the indication identifier and the UE side priority of the PDU session.

Preferably, the PDU session information may include UE side priorities of QoS flows in addition to the PDU session identifier, the indication identifier, and UE side priorities of respective PDU sessions, and a QoS flow identifier of a QoS flow in the PDU session identifier.

In step S202, the UE may send the PDU session information to a network, so that the network may allocate an EBI to the UE according to the PDU pointed by the PDU session identifier and the indication identifier, and determine EBI configuration information.

Specifically, after determining the PDU session and/or QoS flow, the PDU session information may be sent through a PDU session setup request message, a PDU session modification request message, a predefined NAS message, or sent to the AN through AN AS message, and then transmitted to the 5GC by the AN; or sending the PDU session information through other modes such as a short message and the like.

Further, the UE may receive EBI configuration information from the network, where the EBI configuration information may be obtained by the network comprehensively considering a UE side priority to obtain a network side priority after receiving the PDU session information, and configuring EBI for a QoS flow in a PDU session to which each PDU session identifier in the PDU session information points according to the network side priority.

The EBI configuration information may include the PDU session identifier, a QoS flow identifier corresponding to a QoS flow of the PDU session in the PDU session pointed to by the PDU session identifier, and an EBI of the QoS flow pointed to by the QoS flow identifier. Further, the EBI configuration information may be transmitted to the UE through a PDU session setup accept message or a PDU session modification command message or a predefined NAS message or an AS message or a short message or OTA technology or other means.

Those skilled in the art understand that the steps S201 to S202 can be regarded as execution steps corresponding to the steps S101 to S102 described in the above embodiment shown in fig. 1, and the two steps are complementary in specific implementation principle and logic. Therefore, the method for requesting EBI on the UE side may refer to the related description of the embodiments shown in fig. 1 to fig. 4, and is not described herein again.

Therefore, by the technical scheme provided by the embodiment of the invention, the UE can indicate the PDU session and/or QoS flow which the UE desires to allocate the EBI to the network, the network does not allocate the EBI blindly any more, and the EBI can be configured for the UE in a more reasonable mode, thereby improving the user experience.

Fig. 6 is a schematic structural diagram of an EBI allocation apparatus according to an embodiment of the present invention. The EBI allocation apparatus 3 (hereinafter, referred to as the allocation apparatus 3) may be applied to a network side, for example, executed by a core network of the network side, and those skilled in the art understand that the embodiment of the present invention may be used to implement the above-mentioned technical solutions of the EBI allocation methods shown in fig. 1 to fig. 4.

Specifically, the distribution device 3 may include: a receiving module 31 and an assigning module 32.

More specifically, the receiving module 31 is adapted to receive PDU session information sent by a user equipment, where the PDU session information at least includes a PDU session identifier and an indication identifier, where the indication identifier is used to indicate that the user equipment desires a network to allocate an EBI for a PDU session pointed by the PDU session identifier; the allocating module 32 is adapted to preferentially allocate the EBI to the QoS flow in the PDU session pointed to by the PDU session identifier in the PDU session information, so as to obtain EBI configuration information.

Wherein the EBI configuration information may include: the PDU session identification, the QoS flow identification of the QoS flow in the PDU session and the EBI of the QoS flow pointed by the QoS flow identification.

As one non-limiting example, the assignment module 32 may include: a first determination submodule 321 and a first configuration submodule 322.

Specifically, the first determining sub-module 321 is adapted to determine a network side priority of each PDU session pointed to by the PDU session identifier in the PDU session information; the first configuration submodule 322 is adapted to allocate EBIs for QoS flows in respective PDU sessions in order of network side priority from high to low.

Preferably, the PDU session information may further include: the PDU session identification points to the UE side priority of the PDU session. At this time, the allocating module 32 may include: a second determination submodule 323 and a second configuration submodule 324.

Specifically, the second determining sub-module 323 is adapted to determine a network side priority of each PDU session according to the UE side priority of each PDU session, where the network side priority allocates an EBI priority to the network; the second configuration sub-module 324 is adapted to allocate EBIs to the QoS flows in the PDU sessions in order from high priority to low priority on the network side; and the UE side priority is the priority of the UE for expecting to allocate the EBI for the PDU session pointed by the PDU session identification.

Further, the first configuration sub-module 322 may include: the first releasing unit 3221.

As a variation, the second configuration sub-module 324 may also include the first releasing unit 3221 (not shown).

Specifically, if there is no EBI available for the current PDU session and there is a PDU session with a network side priority lower than that of the current PDU session among the PDU sessions to which EBIs already allocated, the first releasing unit 3221 is adapted to release the EBI of the PDU session with a network side priority lower than that of the current PDU session and reallocate to the QoS flow in the current PDU session.

As a non-limiting example, the first releasing unit 3221 may include a first releasing subunit 32211.

In specific implementation, the first releasing subunit 32211 is adapted to, for a PDU session with a network side lower priority than the current PDU session, release the EBI of the QoS flow in the PDU session with the network side lower priority than the current PDU session according to a sequence from the network side lower priority to the network side higher priority.

Preferably, the PDU session information may further include: the PDU session identification is directed to a QoS flow identification for at least one QoS flow in the PDU session.

Further, the assignment module 32 may include: a third determination submodule 325 and a third configuration submodule 326.

In particular implementation, the third determining submodule 325 is adapted to determine the network side priority of the QoS flow pointed to by each QoS flow identifier; the third configuration submodule 326 is adapted to allocate EBIs for each QoS flow in order of network side priority from high to low.

Preferably, the PDU session information may further include: each QoS flow identifies the UE-side priority of the QoS flow that is pointed to. At this time, the allocating module 32 may include: a fourth determination submodule 327 and a fourth configuration submodule 328.

In a specific implementation, the fourth determining submodule 327 is adapted to determine, according to the UE-side priority of the QoS flow pointed to by each QoS flow identifier, the network-side priority of the QoS flow pointed to by each QoS flow identifier; the fourth configuration submodule 328 is adapted to allocate EBIs to each QoS flow in order of network side priority from high to low; wherein the UE side priority is a priority that the UE expects to allocate the EBI for the PDU session pointed by the PDU session identification.

Further, the third configuration submodule 326 may include: the second release unit 3261.

As a variation, the fourth configuration sub-module 328 may also include the second releasing unit 3261 (not shown), and the second releasing unit 3261 located in a different sub-module may perform the same function, and both may be the same module, or may be two independent modules.

Specifically, if there is no EBI available for the current QoS flow and there is a QoS flow having a network-side priority lower than that of the current QoS flow among the QoS flows to which EBIs already allocated, the second releasing unit 3261, or the second releasing unit 3261, is adapted to release the EBI of the QoS flow having a network-side priority lower than that of the current QoS flow and reallocate to the current QoS flow.

As a non-limiting example, the second release unit 3261 may include a second release subunit 32611.

Specifically, the second releasing subunit 32611 is adapted to, for a QoS flow with a network side priority lower than the current QoS flow, release EBI of the QoS flow with a network side priority lower than the current QoS flow in an order from low to high network side priority.

Further, the network side priority allocates the EBI priority to the network.

Further, the PDU session information is transmitted through a PDU session establishment request message or a PDU session modification request message or a predefined NAS message or a short message; or the AS message is sent to the AN, and then the AN transmits the AS message to the 5GC for transmission; or the PDU session message is transmitted by the mode that the AS message is sent to the AN and then the AN transmits the PDU session message to the 5 GC.

Preferably, the dispensing device 3 may further comprise: a sending module 33. In particular, the sending module 33 is adapted to send the EBI configuration information to the user equipment. The EBI configuration information may be transmitted to the UE through a PDU session setup accept message, a PDU session modification command message, a predefined NAS message, an AS message, a short message, an over-the-air download technology, or the like.

For more details of the operation principle and the operation mode of the distribution device 3, reference may be made to the description in fig. 1 to 4, which is not repeated here.

Fig. 7 is a schematic structural diagram of an EBI requesting apparatus according to an embodiment of the present invention. The EBI request apparatus 4 (for simplicity, referred to as the request apparatus 4 below) can be applied to the user equipment side, and is used to implement the EBI request method technical solution of the embodiments shown in fig. 2 to fig. 5.

Specifically, the requesting device 4 may include: a determination module 41 and a sending module 42.

More specifically, the determining module 41 is adapted to determine PDU session information, which at least includes a PDU session identifier and an indication identifier, where the indication identifier is used to indicate that the user equipment desires the network to allocate an EBI for the PDU session pointed to by the PDU session identifier; the sending module 42 is adapted to send PDU session information to a network, so that the network preferentially allocates EBI to a QoS stream in a PDU session pointed by a PDU session identifier in the PDU session information, to obtain EBI configuration information. Wherein the EBI configuration information may include: the PDU session identification, the QoS flow identification in the PDU session and the EBI of the QoS flow pointed by the QoS flow identification.

Preferably, the PDU session information may further include: and the UE side priority of the PDU session pointed to by the PDU session identification is the priority that the UE expects to allocate the EBI to the PDU session pointed to by the PDU session identification.

Preferably, the PDU session information may further include: the PDU session identification points to a QoS flow identification for at least one QoS flow in the PDU session, the QoS flow pointed to by the QoS flow identification being a QoS flow for which the UE desires to allocate an EBI.

Preferably, the PDU session information may further include: and the UE side priority of the QoS flow pointed by each QoS flow identification is the priority that the UE expects to allocate the EBI for the PDU session pointed by the PDU session identification.

Further, the PDU session information may be transmitted by the UE through a PDU session setup request message, a PDU session modification request message, a predefined NAS message, an AS message, or a short message.

Further, the requesting device 4 may further include: a receiving module 43 adapted to receive the EBI configuration information from the network. The EBI configuration information may be transmitted to the UE through a PDU session setup accept message or a PDU session modify command message or a predefined NAS message or an AS message or a short message or over-the-air technology or other means.

For more details of the operation principle and the operation mode of the requesting device 4, reference may be made to the description in fig. 2 to 5, which is not repeated here.

Further, the embodiment of the present invention further discloses a storage medium, on which computer instructions are stored, and the computer instructions execute the EBI allocation method and the EBI request method technical solution described in the embodiments shown in fig. 1 to fig. 5 when running. Preferably, the storage medium may include a computer-readable storage medium such as a non-volatile (non-volatile) memory or a non-transitory (non-transient) memory. The computer readable storage medium may include ROM, RAM, magnetic or optical disks, and the like.

Further, an embodiment of the present invention further discloses a network device, which includes a memory and a processor, where the memory stores a computer instruction capable of being executed on the processor, and when the processor executes the computer instruction, the technical solution of the EBI allocation method in the embodiments shown in fig. 1 to 4 is executed. Specifically, the network device may be a core network device of a 5G system.

Further, an embodiment of the present invention further discloses a user equipment, which includes a memory and a processor, where the memory stores computer instructions capable of being executed on the processor, and when the processor executes the computer instructions, the technical solution of the EBI request method described in the embodiments shown in fig. 2 to fig. 5 is executed.

Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A method for allocating EBI, comprising:

receiving PDU session information sent by user equipment, wherein the PDU session information at least comprises a PDU session identifier and an indication identifier, and the indication identifier is used for indicating that the user equipment expects a network to distribute EBI for the PDU session pointed by the PDU session identifier;

and preferentially distributing EBI for the QoS flow in the PDU session pointed by the PDU session identification in the PDU session information to obtain EBI configuration information.

2. The method for allocating EBI according to claim 1, wherein the preferentially allocating EBI for the QoS flow in the PDU session pointed to by the PDU session identification in the PDU session information comprises:

determining the network side priority of each PDU session pointed by the PDU session identification in the PDU session information;

and allocating the EBI for the QoS flow in each PDU session according to the sequence from high priority to low priority on the network side.

3. The method for allocating the EBI according to claim 1, wherein the PDU session information further comprises: the preferentially allocating the EBI to the QoS flow in the PDU session pointed to by the PDU session identifier in the PDU session information includes:

determining the network side priority of each PDU session according to the UE side priority of each PDU session, wherein the network side priority allocates the EBI priority for the network;

allocating EBI for the QoS flow in each PDU conversation according to the sequence from high priority to low priority of the network side;

the UE side priority is the priority that the UE expects to allocate the EBI for the PDU session pointed by the PDU session identification.

4. The EBI allocation method according to claim 2 or 3, wherein the allocating the EBIs for the QoS flows in the PDU sessions in the order of the network side priority from high to low comprises:

and if the current PDU session has no available EBI and the PDU session with the network side priority lower than that of the current PDU session exists in the PDU sessions with the allocated EBI, releasing the EBI of the PDU session with the network side priority lower than that of the current PDU session, and reallocating the EBI to the QoS flow in the current PDU session.

5. The method for allocating EBI according to claim 4, wherein the releasing EBI of QoS flows in PDU sessions with network side priority lower than the current PDU session comprises:

and for the PDU session with the network side lower than the current PDU session, releasing the EBI of the QoS flow in the PDU session with the network side lower than the current PDU session according to the sequence from the network side lower than the current PDU session to the network side higher than the current PDU session.

6. The method for allocating EBI according to claim 1, wherein the PDU session information further comprises: the PDU session identification points to a QoS flow identification for at least one QoS flow in the PDU session, the QoS flow pointed to by the QoS flow identification being a QoS flow for which the UE desires to allocate an EBI.

7. The method of allocating EBI according to claim 6, wherein the preferentially allocating EBI for the QoS flow identification in the PDU session pointed to by the PDU session identification in the PDU session information comprises:

determining the network side priority of the QoS flow pointed by each QoS flow identification;

and allocating the EBI for each QoS flow according to the sequence from the high priority to the low priority of the network side.

8. The method for allocating EBI according to claim 6, wherein the PDU session information further comprises: the preferentially allocating the EBI for the QoS flow in the PDU session pointed by the PDU session identification in the PDU session information comprises:

determining the network side priority of the QoS flow pointed by each QoS flow identification according to the UE side priority of the QoS flow pointed by each QoS flow identification;

distributing EBI for each QoS flow according to the sequence of the network side priority from high to low;

wherein the UE side priority is a priority that the UE expects to allocate the EBI for the PDU session pointed by the PDU session identification.

9. The method for allocating EBI according to claim 7 or 8, wherein the allocating EBI for the QoS flows in the PDU sessions according to the order of the network side priority from high to low comprises:

and if the current QoS flow has no available EBI and a QoS flow with the network side priority lower than that of the current QoS flow exists in the QoS flows with the allocated EBI, releasing the EBI of the QoS flow with the network side priority lower than that of the current QoS flow and reallocating the EBI to the current QoS flow.

10. The method for allocating the EBI according to claim 9, wherein the releasing the EBI of the QoS flow having the network side priority lower than that of the current QoS flow comprises:

and for the QoS flow with the network side priority lower than the current QoS flow, releasing the EBI of the QoS flow with the network side priority lower than the current QoS flow according to the sequence from the low network side priority to the high network side priority.

11. The method for allocating the EBI according to any one of the claims 2, 3, 7 and 8, wherein the network side priority is a priority for allocating the EBI to the network.

12. The method of allocating the EBI according to claim 1, wherein the EBI configuration information includes:

the PDU session identification, the QoS flow identification of the QoS flow in the PDU session and the EBI of the QoS flow pointed by the QoS flow identification.

13. The method for allocating the EBI according to any one of the claims 1-3, 6-8 and 12, wherein the PDU session information is transmitted by a PDU session establishment request message or a PDU session modification request message or a predefined NAS message or an AS message or a short message.

14. The method for allocating the EBI according to any one of claims 1 to 3, 6 to 8 and 12, further comprising: and sending the EBI configuration information to the user equipment.

15. The method of claim 14, wherein the EBI configuration information is transmitted via a PDU session setup accept message or a PDU session modify command message or a predefined NAS message or an AS message or a short message or an over-the-air technique.

16. A method of requesting an EBI, comprising:

determining PDU session information, wherein the PDU session information at least comprises a PDU session identifier and an indication identifier, and the indication identifier is used for indicating that the user equipment expects a network to allocate EBI for the PDU session pointed by the PDU session identifier;

and sending PDU session information to a network so that the network preferentially distributes EBI for the QoS flow in the PDU session pointed by the PDU session identification in the PDU session information to obtain EBI configuration information.

17. The method for requesting an EBI according to claim 16, wherein the PDU session information further comprises: and the UE side priority of the PDU session pointed to by the PDU session identification is the priority that the UE expects to allocate the EBI for the PDU session pointed to by the PDU session identification.

18. The method for requesting an EBI according to claim 17, wherein the PDU session information further comprises: the PDU session identification points to a QoS flow identification for at least one QoS flow in the PDU session, the QoS flow pointed to by the QoS flow identification being a QoS flow for which the UE desires to allocate an EBI.

19. The method for requesting an EBI according to claim 18, wherein the PDU session information further comprises: and the UE side priority of the QoS flow pointed by each QoS flow identification is the priority that the UE expects to allocate the EBI for the PDU session pointed by the PDU session identification.

20. The method for requesting the EBI of claim 16, wherein the EBI configuration information comprises:

the PDU session identification, the QoS flow identification in the PDU session and the EBI of the QoS flow pointed by the QoS flow identification.

21. The method for requesting an EBI according to any one of the claims 16 to 20, wherein the PDU session information is transmitted via a PDU session setup request message or a PDU session modification request message or a predefined NAS message or an AS message or a short message.

22. The method for requesting an EBI according to any one of claims 16 to 20, further comprising:

receiving the EBI configuration information from the network.

23. The method of claim 22, wherein the EBI configuration information is transmitted via a PDU session setup accept message or a PDU session modify command message or a predefined NAS message or an AS message or a short message or an over-the-air technique.

24. An EBI allocation apparatus, comprising:

the receiving module is suitable for receiving PDU session information sent by user equipment, wherein the PDU session information at least comprises a PDU session identifier and an indication identifier, and the indication identifier is used for indicating that the user equipment expects a network to allocate EBI for the PDU session pointed by the PDU session identifier;

and the distribution module is suitable for preferentially distributing the EBI for the QoS flow in the PDU session pointed by the PDU session identification in the PDU session information so as to obtain the EBI configuration information.

25. An EBI requesting apparatus, comprising:

the determining module is suitable for determining PDU session information, wherein the PDU session information at least comprises a PDU session identifier and an indication identifier, and the indication identifier is used for indicating that the user equipment expects a network to allocate EBI for the PDU session pointed by the PDU session identifier;

and the sending module is suitable for sending the PDU session information to a network so that the network preferentially distributes EBI for the QoS stream in the PDU session pointed by the PDU session identification in the PDU session information to obtain EBI configuration information.

26. A storage medium having stored thereon computer instructions which when executed perform the steps of the method of EBI allocation of any one of claims 1 to 15 or the method of EBI request of any one of claims 16 to 23.

27. A network device comprising a memory and a processor, the memory having stored thereon computer instructions executable on the processor, wherein the processor, when executing the computer instructions, performs the steps of the method for EBI allocation according to any one of claims 1 to 15.

28. A terminal comprising a memory and a processor, the memory having stored thereon computer instructions executable on the processor, wherein the processor, when executing the computer instructions, performs the steps of the method for requesting an EBI according to any of claims 16 to 23.