CN115706995A

CN115706995A - Communication method and device, and computer readable storage medium

Info

Publication number: CN115706995A
Application number: CN202110901925.3A
Authority: CN
Inventors: 朱春晖
Original assignee: Spreadtrum Semiconductor Nanjing Co Ltd
Current assignee: Spreadtrum Semiconductor Nanjing Co Ltd
Priority date: 2021-08-06
Filing date: 2021-08-06
Publication date: 2023-02-17

Abstract

A communication method and device and a computer readable storage medium relate to the technical field of communication. Wherein, the method comprises the following steps: the access network equipment receives the data packet; and if the address of the user equipment at the sending end of the data packet belongs to a local routing authorization address and the address of the user equipment at the receiving end of the data packet belongs to the local routing authorization address, the access network equipment sends the data packet to the user equipment at the receiving end according to the address of the user equipment at the receiving end. Therefore, the transmission path length of the data packet between the sending end UE and the receiving end UE can be shortened, and further the communication efficiency is improved.

Description

Communication method and device, and computer readable storage medium

Technical Field

The present invention relates to the field of communications, and in particular, to a communication method and apparatus, and a computer-readable storage medium.

Background

At present, in a wireless communication system, a Core Network (Core Network) parses a data packet, thereby implementing transmission of the data packet between a User Equipment (UE) and the UE. For example, when a pre-existing Radio Access Station (PRAS) and an Evolved home Gateway (eRG) are used together as devices on an Access network side to provide network services for each UE, as shown in FIG. 1, a data transmission direction in the prior art is indicated by a dashed arrow, UE1 is a sending-end UE, and UE2 is a receiving-end UE. UE1 and UE2 are served by the same egrg. UE1 is connected to PRAS1, and UE2 is connected to PRAS 2. Specifically, UE1 sends the data packet to the errg via PRAS 1. After receiving the data packet, the eRG sends the data packet to a core network. The device of the core network analyzes the data packet, identifies the IP address of the receiving end UE for receiving the data packet as the IP address of the UE2, sends the data packet to the eRG according to the IP address of the UE2, and then the eRG sends the data packet to the UE2 through the PRAS 2. Thereby enabling transmission of data packets between UE1 and UE2. The PRAS side may deploy a Distributed Unit (DU), the DU deployed at the PARS1 side is denoted as DU1, the DU deployed at the PARS2 side is denoted as DU2, and the errg side may deploy a Central Unit (CU), thereby forming a wireless communication system with a CU-DU separation architecture.

Although the communication method described above ensures the security of data during communication, when the sending UE and the receiving UE are served by the same PRAS, the communication method described above easily causes a long transmission path of data packets between the sending UE and the receiving UE, thereby affecting the communication efficiency.

Disclosure of Invention

The technical problem to be solved by the invention is how to provide a communication method to shorten the transmission path length of a data packet between a sending end UE and a receiving end UE, thereby improving the communication efficiency.

The embodiment of the application provides a communication method, which comprises the following steps: the access network equipment receives the data packet; and if the address of the user equipment at the sending end of the data packet belongs to a local routing authorization address and the address of the user equipment at the receiving end of the data packet belongs to the local routing authorization address, the access network equipment sends the data packet to the user equipment at the receiving end according to the address of the user equipment at the receiving end.

Optionally, if the address of the sending-end user equipment of the data packet belongs to a local routing authorization address, and the address of the receiving-end user equipment of the data packet belongs to a local routing authorization address, the sending, by the access network equipment, the data packet to the receiving-end user equipment according to the address of the receiving-end user equipment includes: if the address of the user equipment at the sending end of the data packet belongs to a local routing authorization address, the access network equipment acquires the address of the user equipment at the receiving end of the data packet; and if the address of the receiving end user equipment of the data packet belongs to a local routing authorization address, the access network equipment sends the data packet to the receiving end user equipment according to the address of the receiving end user equipment.

Optionally, the obtaining, by the access network device, an address of a receiving-end user device of the data packet includes: and the access network equipment analyzes the packet header of the data packet to acquire the address of the receiving end user equipment of the data packet.

Optionally, the method further includes: and the access network equipment acquires the address of the user equipment at the sending end of the data packet according to the radio bearer of the data packet.

Optionally, the address of the sending end user equipment of the data packet belongs to a local routing authorization address, including: the address of the user equipment at the sending end of the data packet is positioned in a local routing authorization address list; the address of the receiving end user equipment of the data packet belongs to a local routing authorization address, and the method comprises the following steps: and the address of the user equipment at the receiving end of the data packet is positioned in the local routing authorization address list.

Optionally, the method further includes: the access network equipment receives a first local routing authorization result, and the first local routing authorization result is used for indicating a local routing authorization address.

Optionally, the method further includes: the access network equipment sends a first local routing authorization request, and the first local routing authorization request is used for requesting authorization of a local routing authorization address.

Optionally, the method further includes: and the access network equipment sends a second local routing authorization result, wherein the second local routing authorization result is used for indicating a local routing authorization address authorized by the access network equipment.

Optionally, the method further includes: and the access network equipment receives a second local routing authorization request, wherein the second local routing authorization request is used for requesting the authorization of the local routing authorization address.

Optionally, the method further includes: the access network equipment sends a local routing authorization notice, wherein the local routing authorization notice is used for indicating that the authorization is successful as a local routing authorization address.

Optionally, the method further includes: if the address of the sending end equipment of the data packet does not belong to the local routing authorization address, the access network equipment sends the data packet to the receiving end user equipment through core network equipment; and/or if the address of the receiving end equipment of the data packet does not belong to the local routing authorization address, the access network equipment sends the data packet to the receiving end user equipment through the core network equipment.

The embodiment of the present application further provides a communication method, where the method includes: and the user equipment sends a second local routing authorization request, wherein the second local routing authorization request is used for requesting that the address of the user equipment is authorized to be a local routing authorization address.

Optionally, the method further includes: the user equipment receives a local routing authorization notice, wherein the local routing authorization notice is used for indicating that the address authorization of the user equipment is successful as a local routing authorization address.

The embodiment of the present application further provides a communication method, where the method includes: the core network equipment sends a first local routing authorization result, wherein the first local routing authorization result is used for indicating a local routing authorization address.

Optionally, the method further includes: the core network equipment receives a first local routing authorization request, and the first local routing authorization request is used for requesting authorization of a local routing authorization address.

Optionally, the method further includes: and the core network equipment receives a second local routing authorization result, wherein the second local routing authorization result is used for indicating a local routing authorization address authorized by the access network equipment.

The embodiment of the application also provides a communication device, which comprises a communication module and a processing module; the communication module is used for receiving a data packet; and the processing module is used for triggering the communication module to send the data packet to the receiving end user equipment according to the address of the receiving end user equipment when the address of the sending end user equipment of the data packet belongs to the local routing authorization address and the address of the receiving end user equipment of the data packet belongs to the local routing authorization address.

The embodiment of the application also provides a communication device, which comprises a processing module and a communication module; the processing module is configured to obtain a second local routing authorization request, where the second local routing authorization request is used to request authorization of the address of the user equipment as a local routing authorization address; and the communication module is used for sending a second local routing authorization request.

The embodiment of the application also provides a communication device, which comprises a processing module and a communication module; the processing module is configured to obtain a first local routing authorization result, where the first local routing authorization result is used to indicate a local routing authorization address; the processing module is configured to send a first local routing authorization result.

Embodiments of the present application further provide a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of any of the communication methods.

The embodiment of the present application further provides a communication apparatus, which includes a memory and a processor, where the memory stores a computer program executable on the processor, and the processor executes the computer program to make the communication apparatus execute the steps of any one of the communication methods.

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

in the embodiment of the application, after the access network device receives the data packet sent by the sending end UE to the receiving end UE, because the address of the sending end UE and the address of the receiving end UE both belong to the local routing authorization address, the data packet can be directly forwarded to the receiving end UE according to the address of the receiving end UE, and forwarding through the core network device is not needed. Therefore, the technical scheme is beneficial to shortening the transmission path length of the data packet between the sending end UE and the receiving end UE, and further improves the communication efficiency.

Further, under the condition that the address of the sending end UE of the data packet does not belong to the local routing authorization address, the access network equipment can acquire the address of the receiving end UE without analyzing the data packet, so that the calculation amount of the access network equipment is reduced.

Drawings

Fig. 1 is a schematic diagram of a core network data transmission in the prior art;

fig. 2a is a schematic view of a communication scenario according to an embodiment of the present application;

fig. 2b is a schematic diagram of another communication scenario according to an embodiment of the present application;

fig. 3 is a schematic diagram of a protocol stack deployed in each device in a 5G communication system according to an embodiment of the present application;

fig. 4 is a flowchart illustrating another communication method according to an embodiment of the present application;

FIG. 5 is a flowchart illustrating an authorization method for a local routing authorization address according to an embodiment of the present application;

FIG. 6 is a flowchart illustrating another authorization method for a local routing authorization address according to an embodiment of the present application;

fig. 7 is a flowchart illustrating another communication method according to an embodiment of the present application;

fig. 8 is a flowchart illustrating another communication method according to an embodiment of the present application;

fig. 9 is a schematic structural diagram of a first communication device according to an embodiment of the present application;

fig. 10 is a schematic structural diagram of a second communication device according to an embodiment of the present application;

fig. 11 is a schematic structural diagram of a third communication device according to an embodiment of the present application;

fig. 12 is a schematic structural diagram of a fourth communication device according to an embodiment of the present application.

Detailed Description

As described in the background art, the existing communication method easily causes a long transmission path of data packets between the sending end UE and the receiving end UE, thereby affecting the communication efficiency.

In view of this, an embodiment of the present application provides a communication method, where a local routing authorization address is introduced, so that when a source address and a destination address of a data packet both belong to the local routing authorization address, after receiving the data packet from a sending end UE, an access network device may directly send the data packet to a receiving end UE according to the destination address of the data packet, without sending the data packet to a core network device, and then the core network device sends the data packet to the receiving end UE, so as to help shorten a transmission path length of the data packet between the sending end UE and the receiving end UE, and further improve communication efficiency.

First, a part of the nouns involved in the embodiments of the present invention will be explained so as to facilitate understanding by those skilled in the art.

1. User Equipment (UE). In the embodiment of the present application, the user equipment is a device having a wireless transceiving function, and may be referred to as a terminal (terminal), a terminal device, a Mobile Station (MS), a Mobile Terminal (MT), an access terminal device, a vehicle-mounted terminal device, an industrial control terminal device, a UE unit, a UE station, a mobile station, a remote terminal device, a mobile device, a UE terminal device, a wireless communication device, a UE agent, or a UE apparatus. The UE may be fixed or mobile. It should be noted that the UE may support at least one wireless communication technology, such as LTE, new Radio (NR), and the like. For example, the user device may be a mobile phone (mobile phone), a tablet (pad), a desktop, a notebook, a kiosk, a vehicle terminal, a Virtual Reality (VR) terminal, an Augmented Reality (AR) terminal, a wireless terminal in industrial control (industrial control), a wireless terminal in self driving (self driving), a wireless terminal in remote surgery (remote medical supply), a wireless terminal in smart grid (smart grid), a wireless terminal in transport security (transportation safety), a wireless terminal in smart city (smart city), a wireless terminal in smart home (smart home), a cellular phone, a cordless phone, a session initiation protocol (session initiation protocol), SIP) phones, wireless Local Loop (WLL) stations, personal Digital Assistants (PDAs), handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, wearable devices, terminal devices in future mobile communication networks or terminal devices in future evolved public mobile land networks (PLMNs), and the like. In some embodiments of the present application, the user equipment may also be a device having a transceiving function, such as a system on chip. The chip system may include a chip and may also include other discrete devices.

The UE for sending the data packet is referred to as a sending end UE, and the UE for receiving the data packet is referred to as a receiving end UE.

2. And (4) accessing the network equipment. In this embodiment, the access network device refers to a device for providing a wireless communication function for a user equipment, and may be referred to as a Radio Access Network (RAN) device. The access network device may support at least one wireless communication technology, e.g., LTE, NR, etc. By way of example, access network devices may include, but are not limited to: CU, DU, PRAS, errg, etc. in a Radio Access Network (RAN) architecture. In other embodiments of the present invention, the access network device may also be a next generation base station (generation node B, gbb), evolved node B (eNB), radio Network Controller (RNC), node B (NB), base Station Controller (BSC), base Transceiver Station (BTS), home base station (e.g., home evolved node B, HNB), base Band Unit (BBU), transmission and reception point (trpting, transmitting point), mobile switching center (mobile switching center, etc.) in a fifth generation mobile communication system (5 th-generation, 5G). The network device may also be a wireless controller in a Cloud Radio Access Network (CRAN) scenario, or the access network device may be a relay station, an access point, an in-vehicle device, a user equipment, a wearable device, and a network device in future mobile communication or a network device in a PLMN that evolves in the future, and the like. In some embodiments, the access network device may also be an apparatus, such as a system-on-a-chip, having functionality to provide wireless communications for user equipment. By way of example, a system of chips may include a chip and may also include other discrete devices.

3. A core network device. In the embodiment of the present application, the core network device is located in a core network, and may be used to forward and analyze a data packet. For example, taking the 5G communication system as an example, the core network device may include but is not limited to: a Session Management Function (SMF) device, an Access and Mobility Management Function (AMF) device, and the like.

4. An address. In the embodiment of the present application, addresses may be divided into a source address and a destination address based on a transmitting end and a receiving end of a data packet. Specifically, the source address refers to an address of a UE for transmitting the data packet, i.e., an address of a transmitting UE. The destination address refers to an address of a UE for receiving the data packet, i.e., an address of a receiving-end UE. In some embodiments, the source address is the IP address of the sending UE, and the destination address is the IP address of the receiving UE. Or the source address is the MAC address of the sending end UE, and the destination address is the MAC address of the receiving end UE.

5. The local routing authorization address. In this embodiment of the present application, the local routing authorization address is used to indicate that a function of forwarding a data packet through a core network is supported, or the local routing authorization address is used to indicate that a function of forwarding a data packet directly through an access network device is supported.

The embodiment of the application can be applied to a scene of transmitting the data packet between the UE. For example, as shown in fig. 2a, a schematic view of a communication scenario in the embodiment of the present application is shown. Specifically, as shown in fig. 2a, UE1 and UE2 are connected to the same access network device respectively. The access network device is connected to the core network. One or more core network devices may be included in the core network. As another example, as shown in fig. 2b, it is a schematic diagram of another communication scenario in the embodiment of the present application. Specifically, as shown in fig. 2b, UE1 is connected to DU1, UE2 is connected to DU2, DU1 and DU2 are connected to CU, and CU is connected to the core network. One or more core network devices may be included in the core network. It should be noted that DU1 and DU2 may be the same DU or different DUs, and are not limited thereto.

Fig. 2a and 2b are merely illustrations of two communication scenarios, and are not intended to limit embodiments of the present application. For example, the embodiment of the present application may also be applied to the communication scenario shown in fig. 1.

Take 5G communication system as an example. For example, the core network device is a UPF and the access network device is a 5G-AN. For example, as shown in fig. 3, a schematic diagram of a protocol stack deployed for each device in a 5G communication system according to an embodiment of the present application is shown. The 5G communication system of this embodiment may include one or more UEs, 5G-ANs, a User Plane Function (UPF) of a relay, and a UPF of a session anchor of a protocol data unit (PDU for short).

Specifically, the UE is at least deployed with AN Application (Application) layer, a PDU layer, and a protocol layer of a 5G-Access Network (AN). The protocol stack structure of the UE in fig. 3 may be applied to the transmitting UE and/or the receiving UE in the embodiments of the present application.

The 5G-AN is at least provided with a Protocol Layer, a PDU Layer, a User Datagram Protocol (UDP)/Internet Protocol (IP) Layer, a General Packet Radio Service (GPRS) channel Protocol-User Plane (GTP-U) Layer, a Physical Layer (Physical Layer, denoted as Layer one, L1) and a Data Link Layer (Data Link Layer, denoted as Layer two, L2) of the 5G access network. The UE corresponds to a protocol layer of a 5G access network in the 5G-AN, so that the UE and the 5G-AN can communicate based on a communication protocol related to a 5G core network, the PDU layer 301 is a protocol layer newly added in the access network device (5G-AN) in the embodiment of the present application, and the PDU layer 301 is configured to perform resolution on a PDU header of a received data packet, so as to obtain AN address of a receiving end UE in the PDU header of the data packet.

And the UPF of the relay is at least provided with a GTP-U layer, a UDP/IP layer, an L1 and an L2. The UPF of the PDU conversation anchor point is at least provided with a PDU layer, a GTP-U layer, a UDP/IP layer, an L1 and an L2. When the position of the UE changes, the UPF of the relay connected with the UE also changes, and the UPF of the PDU session anchor point does not change along with the change of the position of the UE.

The 5G-AN is connected with the relayed UPF through AN N3 interface, the relayed UPF is connected with the UPF of the PDU session anchor point through AN N9 interface, and the UPF of the PDU session anchor point is connected with AN operator Data Network (DN) (not shown in the figure) through AN N6 interface.

The following describes the technical solution of the embodiment of the present application in detail with reference to specific scenarios.

Scene one: the sending end UE and the receiving end UE are respectively connected with the same access network device. Take the communication scenario shown in fig. 2a as an example. UE1 sends a data packet to UE2, in which case UE1 is a sending end UE and UE2 is a receiving end UE. The address of UE1 is the source address of the data packet, and the address of UE2 is the destination address of the data packet. Take the source address as address 1 and the destination address as address 2 as an example.

As shown in fig. 4, a schematic flow chart of a communication method according to an embodiment of the present application specifically includes the following steps:

in step S401, UE1 transmits a data packet.

Step S402, the access network equipment receives the data packet, and if the address 1 and the address 2 both belong to the local routing authorization address, the access network equipment sends the data packet to the UE2 according to the address 2.

In the embodiment of the application, the access network device can directly send the data packet to the UE2 according to the address 2 without forwarding the data packet to the UE2 through the core network device under the condition that the address 1 and the address 2 both belong to the local routing authorization address, thereby contributing to shortening the length of the data transmission path between the UE1 and the UE2 and improving the communication efficiency.

In some embodiments, the access network device receives the data packet, obtains the address 1 and the address 2, and determines whether the address 1 and the address 2 belong to the local routing authorization address.

For example, when receiving a data packet, the access network device may first obtain address 1, and determine whether address 1 belongs to the local routing authorization address. If the address 1 belongs to the local routing authorization address, the access network equipment acquires the address 2 again and then judges whether the address 2 belongs to the local routing authorization address. For example, the access network device may obtain address 1 according to the radio bearer of the data packet. The mode of obtaining the address 1 enables the access network equipment to obtain the address 1 without analyzing the data packet, and is beneficial to improving the processing efficiency of the access network equipment. For example, the access network device obtains an address 1 according to an identity (ID for short) of a Radio Bearer (RB) of a data packet, where the address 1 corresponds to the ID of the RB, and the RB is used for transmitting the data packet. Specifically, the access network device may store a mapping relationship between an ID of an RB and a source address (i.e., address 1) in advance when the RB is established for the packet.

In this case, the access network device may obtain address 2 by parsing the packet. For example, the access network device may obtain address 2 by parsing the packet header of the data packet. As another example, the access network device may obtain the address 2 by parsing a PDU header of the data packet.

Of course, in this embodiment of the present application, the access network device may also obtain the address 1 and the address 2 by analyzing the data packet, in this case, the access network device may simultaneously determine whether the address 1 and the address 2 belong to the local routing authorization address, or first determine whether the address 2 belongs to the local routing authorization address, and then determine whether the address 1 belongs to the local routing authorization address, or first determine whether the address 1 belongs to the local routing authorization address, and the like, which is not limited herein.

Further, in some embodiments, the access network device receives the data packet, and may obtain the address 1 and the address 2 through the PDU layer, and determine whether the address 1 and the address 2 belong to the local routing authorization address.

Take address 1 as an example. In a specific embodiment, the access network device may determine whether address 1 belongs to the local routing authority by:

the access network device determines whether address 1 is in the local routing authorization address list. If the address 1 is located in the local routing authorization address list, the address 1 belongs to the local routing authorization address. Further, in some embodiments, if address 1 is not in the local routing authorization address list, address 1 does not belong to the local routing authorization address. It should be noted that, the address 1 belongs to a local routing authorization address, and can be understood as follows: address 1 is a local routing authority address.

It should be understood that the foregoing is merely an example of determining whether address 1 is a local routing authorization address, and does not constitute a limitation to this embodiment, and in this embodiment, the access network device may also determine whether address 1 is a local routing authorization address in other manners. For example, address 1 is marked as belonging to a local routing authorization address. For example, whether address 1 belongs to a local routing authorization address may be marked by tagging address 1.

The manner in which the access network device determines whether the address 2 belongs to the local routing authorization address may refer to the manner in which the access network device determines whether the address 1 belongs to the local routing authorization address, which is not described herein again.

Further, in other embodiments of the present application, if the address 1 does not belong to the local routing authorization address, and the access network device receives the data packet, the access network device sends the data packet to the core network device. The data packet is sent by the core network device to the UE2. For example, a 5G communication system is taken as an example. In the case that address 1 does not belong to the local routing authority address, the access network device sends the packet to the UPF (which may include the relayed UPD and/or the UPF of the PDU session anchor). And analyzing the data packet by the UPF to obtain the address 2. The UPF then sends a data packet to UE2 according to address 2.

Or, if the address 2 does not belong to the local routing authorization address, and the access network device receives the data packet, the access network device sends the data packet to the core network device. The data packet is sent by the core network device to the UE2.

In addition, in this embodiment of the present application, the local routing authorization address may be authorized by the core network device, may also be authorized by the access network device, or may be authorized by the core network device in combination with the access network device. The following describes in detail a method for authorizing a local routing authorization address according to an embodiment of the present application with reference to a specific example.

Example 1: local routing authorization is requested by the access network device, and the local routing address is authorized by the core network device.

For example, as shown in fig. 5, a schematic flowchart of an authorization method for a local routing authorization address according to an embodiment of the present application specifically includes the following steps:

s501, the access network device sends a first local routing authorization request to the core network device, wherein the first local routing authorization request is used for requesting authorization of a local routing authorization address.

For example, the access network device may trigger sending the first local routing authorization request to the core network device in the following manner.

Mode 1: the access network device receives the second local routing authorization request sent by the UE (as shown by the dashed box in fig. 5), and sends the first local routing authorization request to the core network device (i.e., step S501 in fig. 5). The second local routing authorization request is for requesting authorization of the local routing authorization address. For example, the address of the second local routing authorization request for requesting authorization of the UE is the local routing authorization address, in which case the address of the first local routing authorization request for requesting authorization of the UE is the local routing authorization address.

That is, in the mode 1, the UE requests the access network device to authorize that its own address is a local routing authorization address, and the access network device requests the core network device to authorize that the address of the UE is a local routing authorization address.

Mode 2: the access network device periodically sends a first local routing authorization request to the core network device. In this case, the first local routing authorization request may be for requesting authorization of the address of the at least one UE as the local routing authorization address. Illustratively, the at least one UE is located within a coverage area or a service area of the access network device.

For example, the access network device receives second local routing authorization requests sent by two UEs in one period, and then the access network device requests the core network device to authorize the addresses of the two UEs to be local routing authorization addresses in the period.

In some embodiments, the access network device does not need to send the first local routing authorization request to the core network device if no UE requests authorization of the local routing authorization address in one period.

Alternatively, the access network device may send the first local routing authorization request to the core network device when detecting that a new UE accesses within a certain period. In this case, the first local routing authorization request is used to request that the address of at least one UE newly accessing the access network device is authorized as the local routing authorization address.

Mode 3: the access network equipment communicates with other access network equipment to determine whether the addresses of the UE in the coverage area or the service area of the access network equipment can be authorized as the local routing authorization address, if the address of at least one UE can be authorized as the local routing authorization address, a first local routing authorization request is sent to the core network equipment, in this case, the first local routing authorization request is used for requesting that the address of at least one UE which can be authorized is authorized as the local routing authorization address.

The above is merely an example of triggering the access network device to send the first local routing authorization request to the core network device, and in this embodiment of the present application, the access network device may also be triggered to send the first local routing authorization request to the core network device through other manners, which is not limited to this embodiment of the present application.

For example, the access network device may send the first local routing authorization request to the core network device by carrying the first local routing authorization request in a registration message or a PDU session establishment request message, where the registration message or the PDU session establishment request message is used to establish a PDU session. For example, in the 5G communication system, the access network device may send a PDU session establishment request message to the AMF, and then the AMF sends the PDU session establishment request message to the SMF, where the PDU session establishment request message carries the first local routing authorization request.

S502, the core network device receives the first local routing authorization request and sends a first local routing authorization result to the access network device. Wherein the first local routing authorization result is used for indicating a local routing authorization address.

For example, the first local routing authorization request is used to request that the address of the authorized UE1 is the local routing authorization address, and after the core network device receives the first local routing authorization request, the address of the authorized UE1 is the local routing authorization address, the core network device sends a first local routing authorization result to the access network device, where the first local routing authorization result is used to indicate that the address of the authorized UE1 is the local routing authorization address.

In some embodiments, the core network device may determine whether to authorize the address of the UE requesting authorization as a local routing authorization address according to some policy or rule. For example, when the total number of authorized local routing authorization addresses in the coverage area of the access network device is less than a certain threshold, the address of the UE, which the core network device requests for authorization, of the access network device is authorized to be the local routing authorization address. For another example, when the total number of authorized local routing authorization addresses in the coverage area of the access network device is greater than or equal to a certain threshold, the address of the UE, which requests authorization from the core network device to the access network device, is no longer authorized as the local routing authorization address.

S503, the access network equipment receives the first local routing authorization result, and updates the local routing authorization list according to the first local routing authorization result.

For example, the first local routing authorization result is used to indicate that the address of the authorized UE1 is the local routing authorization address, in which case, the access network device adds the address of the UE1 in the local routing authorization list according to the first local routing authorization result.

Further, in some embodiments, the method for authorizing the local routing authorization address may further include: s504, the access network device receives the first local route authorization result, and further sends a local route authorization notification to the UE (as in step S504 in the dashed box in fig. 5).

For the UE with the authorized UE address as the local routing authorization address, the local routing authorization notification is used for indicating that the local routing authorization address is successful. For the UE of which the address of the unauthorized UE is the local routing authorization address, the local routing authorization notification is used for indicating that the local routing authorization address fails. Or the access network equipment only informs the UE authorized as the local routing authorization address that the local routing authorization address authorization is successful, and does not inform the UE failed in the local routing authorization address. Or the access network equipment only informs the UE which is not authorized to be the local routing authorization address of the failure of the authorization of the local routing authorization address, and does not inform the UE which is successful in the local routing authorization address.

For example, the access network device may send the local routing authorization notification to the corresponding UE in a registration ACCEPT (ACCEPT) message or a message that the session request for establishing the PDU is completed. Wherein, the message of registration acceptance or the message of PDU session establishment request completion is used for notifying the UE of successful PDU session establishment. For example, the access network device sends a PDU session establishment request completion message to the UE to notify the UE of successful PDU session establishment, where the PDU session establishment request completion message carries a local routing authorization notification.

Example 2: and local routing authorization is executed by the access network equipment, and the core network equipment confirms whether to agree with a local routing authorization address authorized by the access network equipment.

For example, as shown in fig. 6, a schematic flow chart of an authorization method for a local routing authorization address according to an embodiment of the present application specifically includes the following steps:

s601, the access network device authorizes at least one address of the UE to be a local routing authorization address, and sends a second local routing authorization result to the core network device. And the second local routing authorization result is used for indicating the local routing authorization address. I.e. the second local route authorization result is used to indicate the address of at least one UE authorized by the access network.

It should be noted that the address of at least one UE in step S601 refers to at least one UE in the coverage area or serving of the access network device.

In some embodiments, the access network device may trigger the authorization of the local routing authorization address by an event and/or periodically. Specifically, the access network device may trigger sending the second local routing authorization result to the core network device by:

in mode 1, the access network device periodically sends the second local routing authorization result to the core network device.

For example, the access network device periodically detects UEs managed by itself, and when detecting that there is a UE requiring authorization, authorizes an address of the UE requiring authorization as a local routing authorization address, and triggers sending of a second local routing authorization result to the core network device, where the second local routing authorization result includes an address of at least one UE authorized by the access network device as a local routing authorization address in this period.

For another example, the access network device receives a second local routing authorization request sent by at least one UE, the access network device authorizes the address of the at least one UE as a local routing authorization address, and the access network device periodically sends a second local routing authorization result to the core network device. For example, in one period, the access network device receives a second local routing authorization request of at least one UE, and the access network device determines whether to authorize the UE as a local routing authorization address according to the second local routing authorization request of each UE. When one period ends, the access network device may send a second local routing authorization result to the core network device, where the second local routing authorization result includes addresses of all UEs authorized by the access network device in the period. In mode 2, the access network device receives a second local routing authorization request sent by the UE, and the access network device authorizes the address of the UE as a local routing authorization address, and triggers sending of a second local routing authorization result to the core network device.

For example, the access network device may send the second local routing authorization result to the core network device by carrying the second local routing authorization result in a registration message or a message of a PDU session establishment request. In the 5G communication system, for example, the core network device side is deployed with the AMF and the SMF, and the access network device may send the registration message to the AMF, and then the AMF sends the registration message to the SMF. Alternatively, the access network device may send a message to the AMF to establish the PDU session request, which is then sent by the AMF to the SMF.

S602, the core network device receives the second local routing authorization result and sends the first local routing authorization result to the access network device. The first local routing authorization result is used for indicating a local routing authorization address. That is, the first local routing authorization result is used to indicate the address of the UE which is authorized by the core network as the local routing authorization address. For example, the core network device may send the first local routing authorization result to the access network device in a message of completing registration or establishing a PDU session request admission. Taking the 5G communication system as an example, the SMF sends the message of completing the PDU session establishment request to the AMF, and the AMF sends the message of completing the PDU session establishment request to the access network device.

The local routing authorization address indicated by the first local routing authorization result and the local routing authorization address indicated by the second local routing authorization result may be the same or different. For example, the second local routing authorization address is used to indicate address 1 and address 2, address 1 and address 2 are local routing authorization addresses authorized by the access network device, and the first local routing authorization result is used to indicate address 1. The address 1 is a local routing authorization address authorized by the access network device and agreed by the core network device, in this case, the address of the UE2 refused to be authorized by the core network device is the local routing authorization address. Address 1 is the address of UE1 and address 2 is the address of UE2. As another example, the second local routing authority address is used to indicate address 3. Address 3 is a local routing authorization address authorized by the access network device. Address 3 is the address of UE 3. The first local route authorization result is used to indicate address 3. Address 3 is a local routing authorization address authorized by the access network device agreed by the core network device. I.e. the core network device agrees that the address of the authorized UE3 is the local routing authorization address.

For example, the core network device may determine whether to grant the access network device an authorized local routing authorization address based on certain information of the UE in communication. For example, the core network device determines whether to approve that the UE is authorized as the local routing authorization address based on the communication Signal quality of each UE, and the communication Signal quality of the UE may be determined according to Reference Signal Receiving Power (RSRP) measured by the UE side. For example, when the RSRP value of a UE is higher than a preset value, the access network agrees that the UE is authorized as the local routing authorization address. By way of example, the access network device determines whether to grant each UE a local routing authorization address based on the packet transmission history of the UE. For example, if the core network device detects that a UE has transmitted data packets with other UEs managed by its own access network device several times in the past period of time, the core network device agrees that the UE is authorized as a local routing authorization address.

Further, in other embodiments, the method shown in fig. 6 may further include step S603 (corresponding to the step in the dashed box in fig. 6).

S603, the access network equipment receives the first local routing authorization result and sends a local routing authorization result notice to the UE. For a specific sending manner of the local routing authorization result notification, reference may be made to related description in step S503, and details are not described herein again.

The above is merely an illustration of two local routing authorization address authorization methods, and in this embodiment of the present application, the access network device may also perform local routing address authorization alone, which is not limited in this embodiment of the present application.

Scene two: and the sending end UE and the receiving end UE are respectively connected with the same CU. Take the communication scenario shown in fig. 2b as an example. UE1 sends a data packet to UE2, in which case UE1 is a sending UE and UE2 is a receiving UE. The address of UE1 is the source address of the data packet, and the address of UE2 is the destination address of the data packet. Take the source address as address 1 and the destination address as address 2 as an example.

Example one:

as shown in fig. 7, a schematic flow chart of another communication method according to the embodiment of the present application specifically includes the following steps:

s701, UE1 sends a data packet.

And S702, the DU1 receives the data packet and sends the data packet to the CU.

And S703, the CU receives the data packet, and if the address 1 and the address 2 both belong to the local routing authorization address, the CU sends the data packet to the DU 2.

S704, the DU2 receives the data packet and sends the data packet to the UE2.

Specifically, in the first example, the judgment of the local routing address, the sending of the data, and the like may refer to the related description in the communication method shown in fig. 4, and are not described herein again.

Example two:

as shown in fig. 8, a schematic flow chart of another communication method according to the embodiment of the present application specifically includes the following steps:

s801, UE1 transmits a data packet.

S802, the DU1 receives the data packet, and if the address 1 and the address 2 both belong to the local routing authorization address, the data packet is sent to the UE2.

Regarding the first example and the second example, the method may be applied to a network architecture of CU-DU separation, where one or more of a Packet Data Convergence Protocol (PDCP) layer, a Radio Resource Control (RRC) layer, and a Service Data Adaptation Protocol (SDAP) layer are deployed on a CU side, and a Radio Link Control Protocol (RLC) layer, a MAC layer Protocol layer, and a physical layer (PHY) Protocol layer are deployed on a DU side. In this case, the access network device may be a CU or a DU.

In the CU-DU separated network architecture, the local routing authorization address may be authorized by the core network device, may be authorized only by the CU, may be authorized by the core network device in combination with the CU, may be authorized only by the DU, or may be authorized by the core network device in combination with the DU. For the core network device authorization, see fig. 5, where the steps executed by the CUs may refer to the steps executed by the access network device, and are not described herein again. Regarding authorization only by CU or only by DU, see step S601 in fig. 6, where the access network device in fig. 6 is DU when only authorized by DU and the access network device in fig. 6 is CU when only authorized by CU. Regarding the core network device in conjunction with CU authorization or the core network device in conjunction with DU authorization, see steps S601 and S602 in fig. 6, for example, if the core network device in conjunction with CU authorization, the access network device in fig. 6 is a CU. For another example, if the core network device is authorized by combining a DU, the access network device in fig. 6 is the DU, and when the DU communicates with the core network through a CU, a signaling transmitted between the DU and the core network is forwarded through the CU during the authorization process. The steps executed by the CU may refer to the steps executed by the access network device, and are not described herein again.

It is to be understood that the above-described embodiments may be used alone or in combination with each other to achieve different technical effects.

Optionally, the address in each embodiment of the present invention is an address used by the UE for communication, and the UE corresponds to the address one to one, that is, the address may be used to uniquely identify the UE, and the address may be an IP address, a Media Access Control (MAC) address, and the like.

Referring to fig. 9, an embodiment of the present application further provides a communication apparatus 90, where the communication apparatus 90 may be deployed on an access network device side or communicate with an access network device, where the communication apparatus 90 includes a communication module 901 and a processing module 902; the communication module 901 is configured to receive a data packet; the processing module 902 is configured to, when the address of the sending-end user equipment of the data packet belongs to the local routing authorization address, and the address of the receiving-end user equipment of the data packet belongs to the local routing authorization address, trigger the communication module to send the data packet to the receiving-end user equipment according to the address of the receiving-end user equipment.

Optionally, the communication module 901 may include: a first determining unit, configured to obtain an address of a receiving-end user device of the data packet if the address of the sending-end user device of the data packet belongs to a local routing authorization address; a second determining unit, configured to send the data packet to the receiving-end user equipment according to the address of the receiving-end user equipment if the address of the receiving-end user equipment of the data packet belongs to the local routing authorization address.

Optionally, the first determining unit may be further configured to parse the packet header of the data packet, and obtain an address of a receiving-end user equipment of the data packet.

Optionally, the communication device further includes: and the address acquisition module of the sending end user equipment is used for acquiring the address of the sending end user equipment of the data packet according to the radio bearer of the data packet.

Optionally, the communication module 901 may be further configured to receive a first local routing authorization result, where the first local routing authorization result is used to indicate a local routing authorization address.

Optionally, the communication module 901 may be further configured to send a first local routing authorization request, where the first local routing authorization request is used to request authorization of a local routing authorization address.

Optionally, the communication module 901 may be further configured to send a second local routing authorization result, where the second local routing authorization result is used to indicate a local routing authorization address authorized by the access network device.

Optionally, the communication module 901 may be further configured to receive a second local routing authorization request, where the second local routing authorization request is used to request authorization of the local routing authorization address.

Optionally, the communication module 901 may be further configured to send a local routing authorization notification, where the local routing authorization notification is used to indicate that authorization is successful for the local routing authorization address.

Optionally, the communication device 90 may further include: a core network forwarding module, configured to send the data packet to the receiving-end user equipment through a core network device if the address of the sending-end device of the data packet does not belong to the local routing authorization address; and/or if the address of the receiving end equipment of the data packet does not belong to the local routing authorization address, the data packet is sent to the receiving end user equipment through the core network equipment.

Further details regarding the operation principle and the operation manner of the communication device 90 may refer to fig. 2 and fig. 9, and are not described herein again.

In a specific implementation, the communication device 90 may correspond to a Chip having a communication function in the access network device, or correspond to a Chip having a data processing function, such as a System-On-a-Chip (SOC), a radio frequency Chip, or the like; or the access network equipment comprises a chip module with a communication function chip; or to a chip module having a chip with data processing function, or to an access network device.

Referring to fig. 10, an embodiment of the present application further provides a communication apparatus 100, where the communication apparatus 100 may be deployed on a UE side or communicate with the UE, and the communication apparatus 100 includes a communication module 1001; the communication module 1001 is configured to send a second local routing authorization request. Optionally, before sending the second local routing authorization request, the communication device 100 may further include a processing module 1000, configured to obtain a first local routing authorization result, where the first local routing authorization result is used to indicate a local routing authorization address.

Optionally, the communication module 1001 may be further configured to receive a local routing authorization notification, where the local routing authorization notification is used to indicate that the address of the user equipment is authorized to be a local routing authorization address successfully.

Further details regarding the operation principle and the operation manner of the communication apparatus 100 may refer to the description regarding the communication method in fig. 10, and are not repeated herein.

In a specific implementation, the communication device 100 may correspond to a Chip having a communication function in the UE, or a Chip having a data processing function, such as a System-On-a-Chip (SOC), a radio frequency Chip, or the like; or the UE comprises a chip module with a communication function chip; or to a chip module having a chip with data processing function, or to a UE.

Referring to fig. 11, an embodiment of the present application further provides a communication apparatus 110, where the communication apparatus 110 may be disposed on a core network device side or communicate with the core network device, and the communication apparatus 110 may include a communication module 1101; the communication module 1101 is configured to send a first local routing authorization result. Optionally, before sending the first local routing authorization result, the communication device 110 may further include a processing module 1100, configured to obtain the first local routing authorization result, where the first local routing authorization result is used to indicate a local routing authorization address.

Optionally, the communication module 1101 is further configured to receive a first local routing authorization request, where the first local routing authorization request is used to request authorization of a local routing authorization address.

Optionally, the communication module 1101 is further configured to receive a second local routing authorization result, where the second local routing authorization result is used to indicate a local routing authorization address authorized by the access network device.

For more details on the operation principle and the operation mode of the communication device 110, reference may be made to the description of fig. 11 regarding the communication method, which is not described herein again.

In a specific implementation, the communication device 110 may correspond to a Chip having a communication function in a core network device, or correspond to a Chip having a data processing function, such as a System-On-a-Chip (SOC), a radio frequency Chip, or the like; or the chip module group is corresponding to the core network equipment and comprises a chip with a communication function; or to a chip module having a chip with a data processing function, or to a core network device.

Each module/unit included in each apparatus and product described in the above embodiments may be a software module/unit, or may also be a hardware module/unit, or may also be a part of a software module/unit and a part of a hardware module/unit. For example, for each device or product applied to or integrated into a chip, each module/unit included in the device or product may be implemented by hardware such as a circuit, or at least a part of the module/unit may be implemented by a software program running on a processor integrated within the chip, and the rest (if any) part of the module/unit may be implemented by hardware such as a circuit; for each device or product applied to or integrated with the chip module, each module/unit included in the device or product may be implemented by using hardware such as a circuit, and different modules/units may be located in the same component (e.g., a chip, a circuit module, etc.) or different components of the chip module, or at least some of the modules/units may be implemented by using a software program running on a processor integrated within the chip module, and the rest (if any) of the modules/units may be implemented by using hardware such as a circuit; for each device and product applied to or integrated in the terminal, each module/unit included in the device and product may be implemented by using hardware such as a circuit, and different modules/units may be located in the same component (e.g., a chip, a circuit module, etc.) or different components in the terminal, or at least part of the modules/units may be implemented by using a software program running on a processor integrated in the terminal, and the rest (if any) part of the modules/units may be implemented by using hardware such as a circuit.

As shown in fig. 12, the embodiment of the present application further provides a fourth communication device 120. The communication device 120 comprises at least one processor 1201 and at least one memory 1202 for storing computer programs and/or data. A memory 1202 is coupled to the processor 1201. The processor 1202 is configured to execute the computer programs and/or data stored in the memory 1202 to implement the communication method of the embodiment of the present application. The coupling in the embodiments of the present application is a spaced coupling or communication connection between devices, units or modules, and may be in an electrical, mechanical or other form, which is used for information interaction between the devices, units or modules. As another implementation, the memory 1202 may also be located external to the apparatus 120. The processor 1201 may operate in conjunction with the memory 1202. The processor 1201 may execute computer programs stored in the memory 1202. At least one of the at least one memory may be included in the processor.

In some embodiments, the communications apparatus 120 may also include a communication interface 1203, the communication interface 1203 is used to communicate with other devices through a transmission medium, so that modules used in the communications apparatus 120 can communicate with other devices. Illustratively, the communication interface 1203 may be a transceiver, circuit, bus, module, or other type of communication interface.

In an example, the communication apparatus 120 may be a RAN device, or may be an apparatus in the RAN device, and is configured to implement the function of the RAN device in the foregoing communication method.

Or, in an example, the communication device 120 may be a UPF or a first functional network element, or may be a device in the UPF or the first functional network element, and is configured to implement the function of the UPF or the first functional network element in the foregoing method;

or, in an example, the communication device 120 may be an SMF, or may be a device in an SMF, and is configured to implement the function of the SMF in the foregoing method.

In the embodiment of the present application, the connection medium between the communication interface 1203, the processor 1201, and the memory 1202 is not limited. For example, in fig. 12, the memory 1202 and the communication interface 1203 of the embodiment of the present application are connected to the processor 1201. Of course, in the embodiment of the present application, the memory 1202, the communication interface 1203, and the processor 1201 may also be connected through a bus, and the bus may be divided into an address bus, a data bus, a control bus, and the like.

In the embodiments of the present application, the processor may be a general-purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, and may implement or execute the methods, steps, and logic blocks disclosed in the embodiments of the present application. The general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware processor, or implemented by a combination of hardware and software modules in a processor.

In the embodiment of the present application, the memory may be a nonvolatile memory, such as a Hard Disk Drive (HDD) or a solid-state drive (SSD), and may also be a volatile memory (RAM), for example. The memory is any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer, but is not limited to such. The memory in the embodiments of the present application may also be a circuit or any other device capable of implementing a storage function for storing a computer program and/or data.

The methods provided in the embodiments of the present application may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. The procedures or functions according to the embodiments of the present application are wholly or partially generated when the computer program is loaded and executed on a computer. The computer may be a general purpose computer, a special purpose computer, a computer network, a network appliance, a user device, or other programmable apparatus. The computer program may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by wire (e.g., coaxial cable, fiber optic, digital Subscriber Line (DSL)), or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a Digital Video Disk (DVD)), or a semiconductor medium (e.g., an SSD), among others.

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

An embodiment of the present application further provides a storage medium, on which a computer program is stored, where the computer program is executed by a processor to perform the steps of the communication method in any one of fig. 4 to 8. The storage medium may be a computer-readable storage medium, and may include, for example, non-volatile (non-volatile) or non-transitory (non-transitory) memory, and may also include optical disks, mechanical hard disks, solid state hard disks, and so on.

An embodiment of the present application further provides a communication apparatus, where the communication apparatus may include a memory and a processor, where the memory stores a computer program operable on the processor, and the processor executes the computer program to perform the steps of the communication method in any one of fig. 4 to fig. 8.

The technical solution of the present invention is also applicable to different network architectures, including but not limited to a relay network architecture, a dual link architecture, a Vehicle-to-electrical (communication from Vehicle to any object) architecture, and the like.

In this embodiment of the present application, the Core Network may be an evolved packet Core (EPC for short), a 5G Core Network (5G Core Network), or may be a novel Core Network in a future communication system. The 5G Core Network is composed of a set of devices, and implements Access and Mobility Management functions (AMF) of functions such as Mobility Management, user Plane Functions (UPF) providing functions such as packet routing and forwarding and QoS (Quality of Service) Management, session Management Functions (SMF) providing functions such as Session Management, IP address allocation and Management, and the like. The EPC may be composed of an MME providing functions such as mobility management, gateway selection, etc., a Serving Gateway (S-GW) providing functions such as packet forwarding, etc., and a PDN Gateway (P-GW) providing functions such as terminal address allocation, rate control, etc.

A Base Station (BS) in the embodiment of the present application, which may also be referred to as a base station device, is a device deployed in a Radio Access Network (RAN) to provide a wireless communication function. For example, a device providing a base station function in a 2G network includes a Base Transceiver Station (BTS), a device providing a base station function in a 3G network includes a node B (NodeB), a device providing a base station function in a 4G network includes an Evolved node B (eNB), and in a Wireless Local Area Network (WLAN), the device providing a base station function is an Access Point (AP), a device providing a base station function in a 5G New Radio (NR) is a gNB, and a node B (ng-eNB) continues to evolve, where the gNB and the terminal communicate with each other by using an NR technique, the ng-eNB and the terminal communicate with each other by using an E-a (Evolved Universal Radio Access) technique, and both the gNB and the ng-eNB may be connected to the 5G core network. The base station in the embodiment of the present application also includes a device and the like that provide a function of the base station in a future new communication system.

The base station controller in the embodiment of the present application is a device for managing a base station, for example, a Base Station Controller (BSC) in a 2G network, a Radio Network Controller (RNC) in a 3G network, or a device for controlling and managing a base station in a future new communication system.

The network on the network side in the embodiment of the present application refers to a communication network that provides a communication service for a terminal, and includes a base station of a radio access network, a base station controller of the radio access network, and a device on the core network side.

A terminal in this embodiment may refer to various forms of User Equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station (mobile station, MS), a remote station, a remote terminal, a mobile device, a user terminal, a terminal device (terminal equipment), a wireless communication device, a user agent, or a user equipment. The terminal device may also be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with a Wireless communication function, a computing device or other processing device connected to a Wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a future 5G Network or a terminal device in a future evolved Public Land Mobile Network (PLMN), and the like, which is not limited in this embodiment.

In the embodiment of the application, a unidirectional communication link from an access network to a terminal is defined as a downlink, data transmitted on the downlink is downlink data, and the transmission direction of the downlink data is called as a downlink direction; the unidirectional communication link from the terminal to the access network is an uplink, the data transmitted on the uplink is uplink data, and the transmission direction of the uplink data is referred to as an uplink direction.

It should be understood that the term "and/or" herein is merely one type of association relationship that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" in this document indicates that the former and latter related objects are in an "or" relationship.

The "plurality" appearing in the embodiments of the present application means two or more.

The descriptions of the first, second, etc. appearing in the embodiments of the present application are only for illustrating and differentiating the objects, and do not represent the order or the particular limitation of the number of the devices in the embodiments of the present application, and do not constitute any limitation to the embodiments of the present application.

The term "connection" in the embodiment of the present application refers to various connection manners such as direct connection or indirect connection, so as to implement communication between devices, which is not limited in this embodiment of the present application.

It should be understood that, in the embodiment of the present application, the processor may be a Central Processing Unit (CPU), and the processor may also be other general-purpose processors, digital Signal Processors (DSPs), application Specific Integrated Circuits (ASICs), field Programmable Gate Arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

The above embodiments may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, the above-described embodiments may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions or computer programs. The procedures or functions according to the embodiments of the present application are wholly or partially generated when the computer instructions or the computer program are loaded or executed on a computer. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by wire or wirelessly. It should be understood that, in the various embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

In the several embodiments provided in the present application, it should be understood that the disclosed method, apparatus, and system may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative; for example, the division of the unit is only a logic function division, and there may be another division manner in actual implementation; for example, various elements or components may be combined or may be integrated into another system, or some features may be omitted, or not implemented. 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.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

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 for causing a computer device (which may be a personal computer, a server, or a network device) to execute some steps of the methods according to the embodiments of the present invention.

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 of communication, the method comprising:

the access network equipment receives the data packet;

and if the address of the user equipment at the sending end of the data packet belongs to a local routing authorization address and the address of the user equipment at the receiving end of the data packet belongs to the local routing authorization address, the access network equipment sends the data packet to the user equipment at the receiving end according to the address of the user equipment at the receiving end.

2. The method of claim 1, wherein if the address of the sending-end user equipment of the data packet belongs to a local routing authorization address and the address of the receiving-end user equipment of the data packet belongs to a local routing authorization address, the sending, by the access network device, the data packet to the receiving-end user equipment according to the address of the receiving-end user equipment comprises:

if the address of the user equipment at the sending end of the data packet belongs to a local routing authorization address, the access network equipment acquires the address of the user equipment at the receiving end of the data packet;

and if the address of the receiving end user equipment of the data packet belongs to a local routing authorization address, the access network equipment sends the data packet to the receiving end user equipment according to the address of the receiving end user equipment.

3. The method of claim 2, wherein the obtaining, by the access network device, the address of the receiving end user equipment of the data packet comprises:

and the access network equipment analyzes the packet header of the data packet to acquire the address of the receiving end user equipment of the data packet.

4. A method according to any of claims 1 to 3, characterized in that the method further comprises:

and the access network equipment acquires the address of the user equipment at the sending end of the data packet according to the wireless bearer of the data packet.

5. The method according to any one of claims 1 to 4, wherein the address of the sending user equipment of the data packet belongs to a local routing authorization address, and comprises:

the address of the user equipment at the sending end of the data packet is positioned in a local routing authorization address list;

the address of the receiving end user equipment of the data packet belongs to a local routing authorization address, and the method comprises the following steps:

and the address of the receiving end user equipment of the data packet is positioned in the local routing authorization address list.

6. The method of any of claims 1 to 5, further comprising:

the access network equipment receives a first local routing authorization result, and the first local routing authorization result is used for indicating a local routing authorization address.

7. The method of claim 6, further comprising:

the access network equipment sends a first local routing authorization request, and the first local routing authorization request is used for requesting authorization of a local routing authorization address.

8. The method of claim 6, further comprising:

and the access network equipment sends a second local routing authorization result, wherein the second local routing authorization result is used for indicating a local routing authorization address authorized by the access network equipment.

9. The method of claim 7 or 8, further comprising:

and the access network equipment receives a second local routing authorization request, wherein the second local routing authorization request is used for requesting the authorization of the local routing authorization address.

10. The method of any of claims 6 to 9, further comprising:

the access network equipment sends a local routing authorization notice, wherein the local routing authorization notice is used for indicating that the authorization is successful as a local routing authorization address.

11. The method according to any one of claims 1 to 10, further comprising:

if the address of the sending end equipment of the data packet does not belong to the local routing authorization address, the access network equipment sends the data packet to the receiving end user equipment through core network equipment; and/or

And if the address of the receiving end equipment of the data packet does not belong to the local routing authorization address, the access network equipment sends the data packet to the receiving end user equipment through the core network equipment.

12. A method of communication, the method comprising:

and the user equipment sends a second local routing authorization request, wherein the second local routing authorization request is used for requesting the address of the authorized user equipment to be a local routing authorization address.

13. The method of claim 12, further comprising:

the user equipment receives a local routing authorization notice, wherein the local routing authorization notice is used for indicating that the address authorization of the user equipment is successful as a local routing authorization address.

14. A method of communication, the method comprising:

the core network equipment sends a first local routing authorization result, wherein the first local routing authorization result is used for indicating a local routing authorization address.

15. The method of claim 14, further comprising:

the core network equipment receives a first local routing authorization request, and the first local routing authorization request is used for requesting authorization of a local routing authorization address.

16. The method of claim 14, further comprising:

and the core network equipment receives a second local routing authorization result, wherein the second local routing authorization result is used for indicating a local routing authorization address authorized by the access network equipment.

17. A communication device comprising a communication module and a processing module;

the communication module is used for receiving a data packet;

and the processing module is used for triggering the communication module to send the data packet to the receiving end user equipment according to the address of the receiving end user equipment when the address of the sending end user equipment of the data packet belongs to the local routing authorization address and the address of the receiving end user equipment of the data packet belongs to the local routing authorization address.

18. A communication device comprising a processing module and a communication module; wherein,

the processing module is configured to obtain a second local routing authorization request, where the second local routing authorization request is used to request that an address of the user equipment is authorized as a local routing authorization address;

and the communication module is used for sending a second local routing authorization request.

19. A communication device comprising a processing module and a communication module; the processing module is configured to obtain a first local routing authorization result, where the first local routing authorization result is used to indicate a local routing authorization address;

the communication module is used for sending a first local routing authorization result.

20. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 11, or of claim 12 or 13, or of any one of claims 14 to 16.

21. A communication apparatus comprising a memory and a processor, the memory having stored thereon a computer program operable on the processor, wherein the processor, when executing the computer program, causes the communication apparatus to perform the steps of the method of any one of claims 1 to 11, or of claim 12 or 13, or of any one of claims 14 to 16.