WO2018014661A1 - Data or signaling sending and transmitting method and device - Google Patents

Abstract

Disclosed in the present invention are a data or signaling sending and transmitting method and a device, comprising: determining, on a terminal side, data or signaling needs to be sent by an UE in an inactive state; sending the data or signaling to a base station in the inactive state . On the base station side, the base station receives data or signaling sent by an UE in an inactive state; and sends data or signaling to a core network according to the context information of the UE. Using this invention can reduce the signaling overhead in the scenario of sparse small data and increase the resource utilization rate for the operator. In addition to reducing the signaling overhead, data or signaling transmission can be faster because data or signaling can be sent without going through the process of sending after state transition of the signaling process.

Description

Data or signaling transmission and transmission method and device

The present application claims priority to Chinese Patent Application No. 201610566437.0, entitled "A Data or Signaling Transmission, Transmission Method and Apparatus", filed on July 18, 2016, the entire contents of which are hereby incorporated by reference. Combined in this application.

Technical field

The present invention relates to the field of wireless communication technologies, and in particular, to a data or signaling transmission and transmission method and apparatus.

Background technique

The UE (User Equipment) status and behavior are introduced based on the LTE (Long Term Evolution) system.

1) The RRC (Radio Resource Control) state in the LTE system is defined as follows:

Behavior that can be performed under RRC_IDLE (RRC idle state):

-PLMN (Public Land Mobile Network) selection;

-NAS (Non Access Stratum, non-access stratum) configuration DRX (Discontinuous Reception);

- system information broadcast;

- paging;

-Cell (cell) reselection mode mobility;

- the UE is assigned a unique identifier within a certain tracking area;

- eNB (Evolved Base Station) does not save UE context (UE context information);

- A D2D (Device-to-Device) communication process can be performed for sidelink (direct link) communication;

-Sidelink found notifications and listeners (D2D discovery process).

RRC_CONNECTED (RRC Connection):

- The UE has a connection of an E-UTRAN-RRC (E-UTRAN: Evolution-Universal Terrestrial Radio Access Network);

- E-UTRAN side has context information of the UE;

- E-UTRAN knows the cell to which the UE belongs and allocates a Cell-Radio Network Temporary Identifier (Cell-Radio Network Temporary Identifier) in the cell;

-Network (network) and UE can use C-RNTI to send and receive data;

-Network controlled mobility;

- neighbor cell measurement;

- Can perform transmission and reception of sidelink communication (D2D communication);

-Sidelink found notifications and listeners (D2D discovery);

- PDCP/RLC/MAC (PDCP: Packet Data Convergence Protocol, RLC: Radio Link Control, Radio Link Control, MAC: Media Access Control, Media Access Control) layer:

- transmitting and receiving data between the UE and the network;

The UE listens to the control signaling channel for the shared data channel to see if there is a transmission on the shared data channel assigned to the UE.

- the UE reports channel quality information and feedback information to the eNB;

The -DRX cycle is controlled by the eNB and is configured according to the energy saving of the UE and the activity level of the resource utilization.

The current state of the supported state transitions is:

From the IDLE to the CONNECTED state, the terminal needs to perform an access or rebuild process. From the CONNECTED state, the IDLE state can be entered through the release process.

In the existing terminal state, in addition to the RRC connection state, the terminal air interface transmission unique identifier C-RNTI can be directly used for data transmission and reception. When other states have data to be transmitted, the terminal must first enter the RRC connection state, establish an RRC connection, and obtain the RRC connection. The terminal air interface of the data transmission transmits a unique identifier, such as C-RNTI, for subsequent data transmission.

In other words, the shortcoming of the prior art is that data transmission can be performed only after entering the RRC connected state and establishing an RRC connection.

Summary of the invention

The present invention provides a data or signaling transmission and transmission method and apparatus for solving the problem that a UE in an inactive state cannot perform data transmission or signaling.

A data or signaling transmission method is provided in the embodiment of the present invention, including:

Receiving data or signaling sent by the UE in the inactive state at the base station;

Transmitting data or signaling to the core network according to the context information of the UE.

Preferably, sending data or signaling to the core network according to the context information of the UE includes:

Determining, according to the context information of the UE, whether the base station is an anchor base station;

If it is an anchor base station, sending data or signaling to a core network node that establishes a dedicated connection of the UE;

If it is not the anchor base station, the base station initiates a RAN anchor update procedure, and updates the anchor base station to the current base station, and sends data or signaling to the core network node in the context information of the UE.

Preferably, the context information of the UE is a UE context obtained by initiating a Context fetch process to an anchor base station according to an inactive ID or an anchor base station ID reported by the UE;

Or, is UE context information obtained from an anchor base station before receiving UE data or signaling;

Or, it is UE context information stored on the base station when the base station is an anchor base station.

Preferably, the method further comprises:

Generating, to the core network node in the context information of the UE, an RAN anchor update procedure for updating the anchor base station of the UE, and updating the anchor base station to the current base station;

The sending data or signaling to the core network node in the context information of the UE is sent during the initiation of the RAN anchor update process, or is sent after the RAN anchor update process is completed.

Preferably, the method further comprises:

The UE is notified to update the anchor base station information or the inactive ID information in the saved UE context.

Preferably, the data is sent to the core network according to the context information of the UE, and the data is sent to the core network node in the context information of the UE.

Preferably, the context information of the UE is a UE context obtained by initiating a Context fetch process to an anchor base station according to an inactive ID or an anchor base station ID reported by the UE;

Or, it is UE context information obtained from an anchor base station before receiving UE data.

Preferably, when the UE context is obtained through the context fetch process, the method further includes:

Set a timer;

If the timer expires and the UE does not send data, the context information of the UE is deleted.

An embodiment of the present invention provides a data or signaling sending method, including:

Determining data or signaling that the UE in the inactive state needs to send;

The data or signaling is sent to the base station in an inactive state.

Preferably, the method further comprises:

The inactive ID or the anchor base station ID is reported to the base station.

Preferably, the method further comprises:

The anchor base station information or the inactive ID information in the saved UE context is updated according to the base station notification.

An embodiment of the present invention provides a data or signaling transmission apparatus, including:

a receiving module, configured to receive data or signaling sent by the UE in an inactive state at the base station;

The base station sending module is configured to send data or signaling to the core network according to the context information of the UE.

Preferably, the base station sending module is further configured to: when transmitting data or signaling to the core network according to the context information of the UE, determine, according to the context information of the UE, whether the base station is an anchor base station; if it is an anchor base station, establish The core network node with the UE dedicated connection sends data or signaling; if it is not the anchor base station, the base station initiates a RAN anchor update procedure, and updates the anchor base station to the current base station, and the core network in the context information of the UE The node sends data or signaling.

Preferably, the base station sending module is further configured to: according to the inactive ID or the anchor base station ID reported by the UE, initiate a Context fetch process to the anchor base station to obtain context information of the UE; or, after receiving the UE data or the letter The context information of the UE is obtained from the anchor base station before; or when the base station is the anchor base station, the UE context information stored on the base station is used.

Preferably, the base station sending module is further configured to initiate, to the core network node in the context information of the UE, an RAN anchor update procedure for updating the anchor base station of the UE, and update the anchor base station to the current base station; Data or signaling is sent during the RAN anchor update process, or data or signaling is sent after the RAN anchor update process is completed.

Preferably, the base station sending module is further configured to notify the UE to update the anchor point base station information or the inactive ID information in the saved UE context.

Preferably, the base station sending module is further configured to send data to the core network node in the context information of the UE when sending data to the core network according to the context information of the UE.

Preferably, the base station sending module is further configured to: obtain an Context fetch process from the anchor base station to obtain context information of the UE according to the inactive ID or the anchor base station ID reported by the UE; or obtain the information from the anchor base station before receiving the UE data. The context information of the UE.

Preferably, the base station sending module is further configured to: when the UE context is obtained through the context fetch process, set a timer; if the timer expires, and the UE does not send data, delete the context information of the UE.

An embodiment of the present invention provides a data or signaling sending apparatus, including:

a determining module, configured to determine data or signaling that the UE in the inactive state needs to send;

The UE sending module is configured to send the data or signaling to the base station in an inactive state.

Preferably, the method further comprises:

The reporting module is configured to report the inactive ID or the anchor base station ID to the base station.

Preferably, the method further comprises:

And an update module, configured to update, according to the base station notification, the anchor point base station information or the inactive ID information in the saved UE context.

Another data or signaling transmission apparatus provided by the embodiment of the present invention includes:

A processor for reading a program in the memory, performing the following process:

Data processing according to the needs of the transceiver;

A transceiver for receiving and transmitting data under the control of a processor, performing the following processes:

Receiving data or signaling sent by the UE in the inactive state at the base station;

Transmitting data or signaling to the core network according to the context information of the UE.

Another data or signaling sending apparatus provided by the embodiment of the present invention includes:

A processor for reading a program in the memory, performing the following process:

Determining data or signaling that the UE in the inactive state needs to send;

A transceiver for receiving and transmitting data under the control of a processor, performing the following processes:

The data or signaling is sent to the base station in an inactive state.

The beneficial effects of the present invention are as follows:

In the technical solution provided by the embodiment of the present invention, after receiving the data or signaling sent by the UE in the inactive state, the base station sends data or signaling to the core network according to the context information of the UE. Therefore, a technical solution for transmitting or transmitting data or signaling by the UE in the inactive state is provided.

It can be easily seen that, after adopting the solution, the signaling overhead in the burst small data scenario can be reduced, and the resource utilization of the operator is improved. In addition to reducing signaling overhead, data or signaling transmissions can be made faster because the transmission of data or signaling does not require a state transition before retransmission.

DRAWINGS

The drawings described herein are intended to provide a further understanding of the invention, and are intended to be a part of the invention. In the drawing:

1 is a schematic diagram of a network deployment structure in the prior art;

2 is a schematic diagram of a second network deployment structure in the prior art;

3 is a schematic flowchart of implementing a data or signaling sending method on a terminal side according to an embodiment of the present invention;

4 is a schematic flowchart of implementing a data or signaling transmission method on a base station side according to an embodiment of the present invention;

FIG. 5 is a schematic flowchart of an implementation process of Embodiment 1 of the present invention; FIG.

6 is a schematic flowchart of an implementation process of Embodiment 2 of the present invention;

7 is a schematic flowchart of an implementation process of Embodiment 3 of the present invention;

8 is a schematic structural diagram of a data or signaling transmission apparatus according to an embodiment of the present invention;

FIG. 9 is a schematic structural diagram of a data or signaling sending apparatus according to an embodiment of the present invention;

FIG. 10 is a schematic structural diagram of a base station according to an embodiment of the present invention;

FIG. 11 is a schematic structural diagram of a UE according to an embodiment of the present invention.

detailed description

The inventor noticed during the invention:

The current state of the supported state transitions is:

From the IDLE to the CONNECTED state, the terminal needs to perform an access or rebuild process. From the CONNECTED state, the IDLE state can be entered through the release process.

But there are other special states as follows:

The PSM (Power Save Mode) of the CN (Core Network) corresponds to the IDLE state of the RRC. In this state, the network saves the context of the UE and restores the context by using a resume identifier assigned to the UE.

In the ongoing discussion of light connection, in the case of light connection, from the core The heart network sees that the user is connected, but the air interface is no longer connected. In this case, the terminal performs mobility by means of cell reselection, and the access network side retains information of the context of the terminal. The base station arrives to initiate paging according to the downlink data, and the terminal performs data transmission and reception after entering the connection state. If there is data transmission on the uplink, the terminal can initiate the resume process to recover the link, and then enter the connection state to send data.

Newly introduced terminal state: Inactive state, in which the following behavior is allowed:

- the core network sees that the UE is in a connected state;

- mobility is performed by the UE, and is performed by cell reselection in the RAN tracking area preconfigured on the network side, instead of the handover process;

- The terminal is assigned a unique user identity within the RAN tracking area preconfigured on the network side.

In the inactive state, the network side allocates a valid RAN identifier in a certain area for the terminal, and the identifier is used to identify the terminal in the inactive state, and can be used for the network side to find the terminal or the terminal actively initiates the uplink access, and uses the identifier as the identity entry. Connection state. It can be called an inactive UE ID, which can also be called a resume UE ID. The identifier is different from the globally unique IMSI (International Mobile Subscriber Identity) or the connected terminal identifier C-RNTI. The identifier length is between the two (for example, the length of the inactive UE ID is 40 bits, C-RNTI). The length is 16 bits. It is valid only in a certain area including multiple cells or multiple eNBs. If the area is exceeded, the terminal needs to update the inactive UE ID.

In the existing terminal state, in addition to the RRC connection state, the terminal air interface transmission unique identifier C-RNTI can be directly used for data transmission and reception. When other states have data to be transmitted, the terminal must first enter the RRC connection state, establish an RRC connection, and obtain the RRC connection. The terminal air interface of the data transmission transmits a unique identifier, such as C-RNTI, for subsequent data transmission.

However, with the development of wireless communication systems, terminal types and service types are diversified, and terminals save power, save network resources, and meet the needs of various service types. For example, in order to ensure terminal power saving and fast data transmission at the same time, a terminal state inactive state is introduced. In this state, the terminal maintains the core network connection, but does not perform normal operations of the air interface connection state (such as handover, uplink timing update, and wireless Link monitoring, etc., does not allocate a terminal identifier (such as C-RNTI) that is directly used for air interface transmission. Therefore, the process of first entering the RRC connection state and establishing an RRC connection according to the above, obtaining the identifier, and performing subsequent data transmission cannot directly perform the air interface. Schedule transmission.

It can be seen that the process of first entering the RRC connection state, establishing an RRC connection, acquiring an identifier, and performing subsequent data transmission is not conducive to fast transmission when data arrives, and if only a small packet needs to be sent, such as a typical MTC (Machine Type) Communication, machine type communication) service, the terminal enters the connection state and sends a small data packet to save power and enter the idle or inactive state. This state transition will cause signaling overhead, if the number of terminals is huge (such as mMTC, massive) MTC scenario), this signaling overhead is almost unacceptable.

Based on this, in the embodiment of the present invention, how to perform fast data or signaling transmission in an inactive state will be solved. Specific embodiments of the present invention will be described below with reference to the accompanying drawings.

In the description process, the implementation from the UE and the base station side will be explained separately, and then the two will be implemented together. Examples for better understanding of the implementation of the solutions presented in the embodiments of the invention. This description does not mean that the two must cooperate with the implementation, or must be implemented separately. In fact, when the UE is implemented separately from the base station, it also solves the problems on the UE side and the base station side, and when the two are combined, Get better technical results.

In the embodiment of the present invention, two implementation manners are also provided. The specific implementation manners of the first method are described in the first embodiment and the second embodiment. Description will be made in Embodiment 3. specific:

After the UE transitions from the connected state to the inactive state, after receiving the small data or signaling sent by the UE, the base station sends signaling or data to the core network according to the UE context information.

That is, after the UE transitions from the connected state to the inactive state, when the base station receives the uplink data or signaling of the terminal, the target base station further obtains or saves the UE context information or the information reported by the UE (the anchor base station identifier or Inactive UE ID), the data or signaling is sent to the core network.

The specific mode 1 is: the target base station determines whether it is the anchor base station of the UE, and the anchor base station refers to the base station that establishes a dedicated connection with the core network node, and if not, initiates the RAN to the core network node in the UE context. During the anchor update process, the message may carry the uplink data or the command to be transmitted at the same time; or the target base station sends the uplink data or signaling to be transmitted to the core network after the RAN anchor update process is performed.

Further, if the target base station is not the UE anchor base station, the target base station needs to notify the UE of the update of the anchor base station, and may send a new anchor base station identifier to the UE, or may re-allocate the inactive UE ID to the UE, where the identifier includes The anchor base station identifier is used by the subsequent target base station to determine the anchor point base station information of the UE, and after performing the foregoing functions. The target base station updates the saved UE context information.

The specific mode 2 is: the target base station determines whether it is the anchor base station of the UE, and if not, sends the data directly to the core network according to the core network node address specified in the obtained or saved UE context information. If the target base station obtains the UE context through the context fetch process (the target base station requests the anchor base station to obtain the context), the target base station needs to indicate in the process, and the anchor base station still needs to reserve the UE context;

Further, the target base station may delete the UE context information based on a timer.

In the description of the embodiment of the present invention, the anchor base station/cell of the UE refers to: for the UE in the inactive state, the serving base station/cell when the connection state enters the inactive state, or stores all the UEs. The base station/cell that accesses the network-related context information, or the access network node that is the S1 connection of the terminating UE, is described by an anchor (anchor) base station for convenience. The UE's anchor base station has the following typical characteristics:

- the connection of the UE to the core network, terminating at the node;

- for the core network, the UE is considered to be below the node;

- storing context information related to all access networks of the UE;

- The UE is assigned an inactive ID, and the anchor node can be found by using the ID to further find the context information of the UE.

For a UE in the Inactive state, since the UE does not need to notify the network side to move within a certain area of the network configuration, when the UE moves out of the coverage of its anchor base station and is in the coverage of another base station, the UE needs to Transmitting data or signaling will be connected and communicated with the base station, which is referred to as the target base station of the UE in the inactive state. The target base station may be different from the anchor base station of the UE, or may be the same. Generally, an interface is established between the target base station and the anchor base station of the UE, and can be used to exchange UE information.

The implementation environment-RAN (Radio Access Network) side architecture of the technical solution provided by the embodiment of the present invention is briefly described below. Specifically, it describes two network deployment structures that may be adopted in future mobile communications.

FIG. 1 is a schematic diagram of a network deployment structure. As shown in the figure, the architecture in the figure is: a base station + a terminal, which is a typical LTE architecture. There are multiple cells in the eNB. In the connected state, the terminal UE and the cell perform air interface data transmission and reception, and the connected UE allocates a unique UE identifier C-RNTI in the cell.

2 is a schematic diagram of a network deployment structure. As shown in the figure, the architecture in the figure is: a network side node is divided into a CU (Central Unit) and a DU (Distributed Unit), and the user side node is a terminal.

FIG. 2 is an architecture that may be adopted by the mobile communication 5G in the future. The network side node includes a central unit and a distributed unit, and one central unit controls a plurality of distributed units deployed in a certain area, and the distributed units specifically pass the transmission point TRP ( The Transmission Reception Point (the transmitting and receiving nodes) performs air interface transmission with the terminal. One or more transmission points can simultaneously serve the terminal for data transmission. Regardless of the method, the data is scheduled and transmitted through the unique identifier of the terminal air interface allocated by the network side for the terminal. The identifier may be C-RNTI or TRP-RNTI.

The technical solutions provided in the embodiments of the present invention are applicable to at least the foregoing two RAN architectures. The subsequent description is a unified description, and the terminal unique identifier for the terminal connection state transmission is referred to as a terminal air interface transmission unique identifier. Specifically, the identifier is C-RNTI in the legacy LTE. A terminal in an inactive state is uniquely identified in the area as an inactive UE ID. The network side wireless signaling and data transceiver nodes are collectively referred to as base stations, whether they are eNBs in the deployment structure 1 or CU/DUs in the deployment structure 2 (the specific transmission and reception points are TRPs). The technical solution provided in the embodiment of the present invention is as follows:

FIG. 3 is a schematic diagram of an implementation process of a data or signaling sending method on a terminal side, as shown in the figure, which may include:

Step 301: Determine data or signaling that the UE in the inactive state needs to send.

Step 302: Send the data or signaling to the base station in an inactive state.

In an implementation, in order to enable the base station to obtain the context information of the UE, the method further includes:

The inactive ID or the anchor base station ID is reported to the base station.

In the implementation, according to the actual situation, when the anchor base station is changed, it may further include:

The anchor base station information or the inactive ID information in the saved UE context is updated according to the base station notification.

In a specific implementation, the method may include:

Receiving a new anchor base station identifier sent by the base station, and updating the anchor point base station according to the identifier;

Or receiving an inactive UE ID of the RAN tracking area re-allocated by the base station, where the identifier includes an anchor base station identifier, and updating the anchor base station according to the identifier.

4 is a schematic flowchart of an implementation process of a data or signaling transmission method on a base station side, as shown in the figure, which may include:

Step 401: Receive data or signaling sent by a UE in an inactive state at a base station.

Step 402: Send data or signaling to the core network according to the context information of the UE.

method one:

In an implementation, sending data or signaling to the core network according to the context information of the UE may include:

Determining, according to the context information of the UE, whether the base station is an anchor base station;

If it is an anchor base station, sending data or signaling to a core network node that establishes a dedicated connection of the UE;

If it is not the anchor base station, the base station initiates a RAN anchor update procedure, and updates the anchor base station to the current base station, and sends data or signaling to the core network node in the context information of the UE.

In an implementation, the context information of the UE may be a UE context obtained by initiating a Context fetch process to the anchor base station according to the inactive ID or the anchor base station ID reported by the UE;

Or, may be UE context information obtained from an anchor base station before receiving UE data or signaling;

Or, it is UE context information stored on the base station when the base station is an anchor base station.

In the implementation, it may further include:

Generating, to the core network node in the context information of the UE, an RAN anchor update procedure for updating the anchor base station of the UE, and updating the anchor base station to the current base station;

The sending data or signaling to the core network node in the context information of the UE is sent during the initiation of the RAN anchor update process, or is sent after the RAN anchor update process is completed.

In the implementation, it may further include:

The UE is notified to update the anchor base station information or the inactive ID information in the saved UE context.

In implementation, it can include:

Sending a new anchor base station identity to the UE;

Or re-allocating the inactive UE ID to the UE, the identifier including the anchor base station identifier.

In a specific implementation, the target base station determines whether it is the anchor base station of the UE, and if not, initiates a RAN anchor update process to the core network node in the UE context, and the message may simultaneously carry uplink data or signaling to be transmitted; or After the target eNB performs the RAN anchor update process, it sends the uplink data or signaling to be transmitted to the core network.

Further, if the target base station is not the UE anchor base station, the target base station needs to notify the UE of the update of the anchor base station, and may send a new anchor base station identifier to the UE, or may re-allocate the inactive UE ID to the UE, where the identifier includes The anchor base station identifier is used by the subsequent target base station to determine the anchor point base station information of the UE, and after performing the foregoing functions. The target base station updates the saved UE context information.

The following is an example to illustrate.

Example 1:

In this embodiment, a process is implemented in which a target base station that receives UE data or signaling performs RAN anchor update to the core network and simultaneously transmits small data and signaling.

FIG. 5 is a schematic diagram of the implementation process of Embodiment 1, as shown in the figure, which may include:

Step 501: The UE enters an inactive state.

Step 502: The UE sends data or signaling to the target base station.

Step 503: The target base station initiates a RAN anchor update process (carrying data/signaling).

Specifically, the target base station determines, according to the acquired or saved UE context information, whether it is the anchor base station of the UE, and if not, initiates a RAN anchor update procedure to the core network node in the UE context, for updating the UE RAN and CP/UP connection between CNs.

In a specific implementation, the message may carry uplink data or signaling to be transmitted at the same time. After performing this step, the target base station will become the anchor base station of the UE.

For the flow indicated by the dotted line in the figure, the process of acquiring UE context information is performed when there is no saved UE context information. In the process, the target base station may initiate a Context fetch process to obtain an UE context from the anchor base station according to the inactive ID or the anchor base station ID reported by the UE, or obtain the saved from the anchor base station before receiving the UE data or signaling. UE context information.

Step 504: The target base station notifies the UE to update the anchor base station.

Specifically, the new anchor base station identifier may be sent to the UE, or the inactive UE ID may be re-allocated to the UE, where the identifier includes an anchor base station identifier, and the information is used by the subsequent target base station to determine the anchor point base station information of the UE, and perform related functions. The target base station updates the saved UE context information.

Example 2:

In this embodiment, the implementation process of the target base station receiving the UE data or signaling, performing the RAN anchor update to the core network, and then transmitting the small data and signaling is described.

FIG. 6 is a schematic diagram of an implementation process of Embodiment 2, as shown in the figure, which may include:

Step 601: The UE enters an inactive state.

Step 602: The UE sends data or signaling to the target base station.

Step 603: The target base station initiates a RAN anchor update process.

Specifically, the target base station determines, according to the acquired or saved UE context information, whether it is the anchor base station of the UE, and if not, initiates a RAN anchor update procedure to the core network node in the UE context, for updating the UE RAN and CP/UP connection between CNs. After performing this step, the target base station will become the anchor base station of the UE.

For the flow indicated by the dotted line in the figure, the process of acquiring UE context information is performed when there is no saved UE context information. In the process, the target base station may be based on the inactive ID or the anchor base station ID reported by the UE. The anchor base station initiates a Context fetch process to obtain the UE context; or obtains the saved UE context information from the anchor base station before receiving the UE data or signaling.

Step 604: The target base station sends the received data or signaling to the core network.

Step 605: The target base station notifies the UE to update the anchor base station.

Specifically, the target base station may notify the UE of the update of the anchor base station, and may send a new anchor base station identifier to the UE, or may re-allocate the inactive UE ID to the UE, where the identifier includes the anchor base station identifier, and the information is used for determining by the target base station. The anchor point base station information of the UE performs related functions. The target base station updates the saved UE context information.

Method 2:

In the implementation, according to the context information of the UE, the data is sent to the core network, and the data is sent to the core network node in the context information of the UE.

In an implementation, the context information of the UE is a UE context obtained by initiating a Context fetch process to an anchor base station according to an inactive ID or an anchor base station ID reported by the UE;

Or, it is UE context information obtained from an anchor base station before receiving UE data.

In the implementation, when the UE context is obtained through the context fetch process, the method further includes:

Set a timer;

If the timer expires and the UE does not send data, the context information of the UE is deleted.

In a specific implementation, the target base station determines whether it is the anchor base station of the UE, and if not, directly sends data to the core network according to the core network node address specified in the obtained or saved UE context information. If the target base station obtains the UE context through the context fetch process (the target base station requests the anchor base station to obtain the context), the target base station needs to indicate in the process, and the anchor base station still needs to reserve the UE context;

Further, the target base station may delete the UE context information based on a timer.

The following is an example to illustrate.

Example 3:

In this embodiment, a target base station that receives UE data is described, and an implementation process of directly transmitting small data to a core network according to address information in a UE context is illustrated.

FIG. 7 is a schematic diagram of an implementation process of Embodiment 3, as shown in the figure, which may include:

Step 701: The UE enters an inactive state.

Step 702: The UE sends data or signaling to the target base station.

Step 703: Initiate a Context fetch process.

Specifically, if the target base station already has a saved UE context, this step may be ignored, and the anchor base station of the UE does not change. If the target base station does not have a UE context, the Context fetch process is initiated to the anchor base station to obtain the UE context according to the inactive ID or the anchor base station ID reported by the UE. In this process, the target base station needs to send indication information to the anchor base station, and notify the anchor. The point base station still retains the context of the UE, that is, from the core network, the anchor base of the UE The station has not changed.

Step 704: The target base station sends data to the core network.

Specifically, the target base station directly sends data to the core network according to the core network node address specified in the obtained or saved UE context information.

Step 705: Set a timer to delete the UE context.

Specifically, if the target base station obtains the UE context through the context fetch process, the target base station may set a timer. If the timer expires, the UE still has no data to send, and the target base station may delete the UE context.

Based on the same inventive concept, the embodiment of the present invention further provides a data or signaling sending device, a data or signaling transmitting device, a principle for solving the problem by the device, and a data or signaling sending method, The data or signaling transmission methods are similar, so the implementation of these devices can be referred to the implementation of the method, and the repeated description will not be repeated.

FIG. 8 is a schematic structural diagram of a data or signaling transmission apparatus, as shown in the figure, which may include:

The receiving module 801 is configured to receive, by the base station, data or signaling sent by the UE in an inactive state;

The base station sending module 802 is configured to send data or signaling to the core network according to the context information of the UE.

In an implementation, the base station sending module is further configured to: when transmitting data or signaling to the core network according to the context information of the UE, determine, according to context information of the UE, whether the base station is an anchor base station; if the anchor base station is established, The core network node of the UE dedicated connection sends data or signaling; if it is not the anchor base station, the base station initiates a RAN anchor update process, and updates the anchor base station to the current base station, and the core network node in the context information of the UE Send data or signaling.

In an implementation, the base station sending module is further configured to: according to the inactive ID or the anchor base station ID reported by the UE, initiate a Context fetch process to the anchor base station to obtain context information of the UE; or, before receiving the UE data or signaling, from the anchor point. The base station obtains context information of the UE; or, when the base station is an anchor base station, uses UE context information stored on the base station.

In an implementation, the base station sending module is further configured to: initiate, to the core network node in the context information of the UE, an RAN anchor update procedure for updating the anchor base station of the UE, and update the anchor base station to the current base station; Data or signaling is sent during the anchor update process, or data or signaling is sent after the RAN anchor update process is completed.

In an implementation, the base station sending module is further configured to notify the UE to update the anchor point base station information or the inactive ID information in the saved UE context.

In an implementation, the base station sending module is further configured to: when transmitting data to the core network according to the context information of the UE, send data to a core network node in the context information of the UE.

In an implementation, the base station sending module is further configured to: according to the inactive ID or the anchor base station ID reported by the UE, initiate a Context fetch process to the anchor base station to obtain context information of the UE; or obtain the information from the anchor base station before receiving the UE data. Context information of the UE.

In the implementation, the base station sending module is further configured to set when the UE context is obtained through the context fetch process. The timer is deleted. If the timer expires and the UE does not send data, the context information of the UE is deleted.

FIG. 9 is a schematic structural diagram of a data or signaling sending apparatus, as shown in the figure, which may include:

The determining module 901 is configured to determine data or signaling that the UE in the inactive state needs to send;

The UE sending module 902 is configured to send the data or signaling to the base station in an inactive state.

In implementation, it further includes:

The reporting module is configured to report the inactive ID or the anchor base station ID to the base station.

In implementation, it further includes:

And an update module, configured to update, according to the base station notification, the anchor point base station information or the inactive ID information in the saved UE context.

For convenience of description, the various parts of the above described devices are described in terms of functions divided into various modules or units. Of course, the functions of the various modules or units may be implemented in one or more software or hardware in the practice of the invention.

When the technical solution provided by the embodiment of the present invention is implemented, it can be implemented as follows.

FIG. 10 is a schematic structural diagram of a base station, as shown in the figure, the base station includes:

The processor 1000 is configured to read a program in the memory 1020 and perform the following process:

Data processing according to the needs of the transceiver;

The transceiver 1010 is configured to receive and transmit data under the control of the processor 1000, and performs the following processes:

Receiving data or signaling sent by the UE in the inactive state at the base station;

Transmitting data or signaling to the core network according to the context information of the UE.

In the implementation, sending data or signaling to the core network according to the context information of the UE, including:

Determining, according to the context information of the UE, whether the base station is an anchor base station;

If it is an anchor base station, sending data or signaling to a core network node that establishes a dedicated connection of the UE;

If it is not the anchor base station, the base station initiates a RAN anchor update procedure, and updates the anchor base station to the current base station, and sends data or signaling to the core network node in the context information of the UE.

In an implementation, the context information of the UE is a UE context obtained by initiating a Context fetch process to an anchor base station according to an inactive ID or an anchor base station ID reported by the UE;

Or, is UE context information obtained from an anchor base station before receiving UE data or signaling;

Or, it is UE context information stored on the base station when the base station is an anchor base station.

In implementation, it further includes:

Generating, to the core network node in the context information of the UE, an RAN anchor update procedure for updating the anchor base station of the UE, and updating the anchor base station to the current base station;

The sending data or signaling to the core network node in the context information of the UE is sent during the initiation of the RAN anchor update process, or is sent after the RAN anchor update process is completed.

In implementation, it further includes:

The UE is notified to update the anchor base station information or the inactive ID information in the saved UE context.

In the implementation, according to the context information of the UE, the data is sent to the core network, and the data is sent to the core network node in the context information of the UE.

In an implementation, the context information of the UE is a UE context obtained by initiating a Context fetch process to an anchor base station according to an inactive ID or an anchor base station ID reported by the UE;

Or, it is UE context information obtained from an anchor base station before receiving UE data.

In the implementation, when the UE context is obtained through the context fetch process, the method further includes:

Set a timer;

If the timer expires and the UE does not send data, the context information of the UE is deleted.

In FIG. 10, the bus architecture may include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 1000 and various circuits of memory represented by memory 1020. The bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein. The bus interface provides an interface. The transceiver 1010 can be a plurality of components, including a transmitter and a transceiver, providing means for communicating with various other devices on a transmission medium. The processor 1000 is responsible for managing the bus architecture and general processing, and the memory 1020 can store data used by the processor 1000 in performing operations.

11 is a schematic structural diagram of a UE. As shown in the figure, the user equipment includes:

The processor 1100 is configured to read a program in the memory 1120 and perform the following process:

Determining data or signaling that the UE in the inactive state needs to send;

The transceiver 1110 is configured to receive and transmit data under the control of the processor 1100, and performs the following processes:

The data or signaling is sent to the base station in an inactive state.

In implementation, it further includes:

The inactive ID or the anchor base station ID is reported to the base station.

In implementation, it further includes:

The anchor base station information or the inactive ID information in the saved UE context is updated according to the base station notification.

Wherein, in FIG. 11, the bus architecture can include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 1100 and various circuits of memory represented by memory 1120. The bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein. The bus interface provides an interface. The transceiver 1110 can be a plurality of components, including a transmitter and a receiver, providing means for communicating with various other devices on a transmission medium. For different user equipments, the user interface 1130 may also be an interface capable of externally connecting the required devices, including but not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.

The processor 1100 is responsible for managing the bus architecture and the usual processing, and the memory 1120 can store the processor 1100 for execution. The data used in the row operation.

In summary, in the technical solution provided by the embodiment of the present invention, after the UE transitions from the connected state to the inactive state, the base station receives the small data or signaling sent by the UE, and sends the small data or signaling to the core network according to the UE context information. Signaling or data.

Specifically, the target base station determines whether it is the anchor base station of the UE, and if not, initiates a RAN anchor update procedure to the core network node in the UE context, for updating the anchor base station of the UE.

The eNB may carry small data or signaling to the core network during the RAN anchor update process. The eNB may also send small data or signaling after performing the RAN anchor update process.

If the target base station is not a UE anchor base station, the target base station may also notify the UE of the update of the anchor base station. Specifically, the new anchor base station identifier may be sent to the UE, or the inactive UE ID may be re-allocated to the UE, where the identifier includes an anchor base station identifier, and the information is used by the subsequent target base station to determine the anchor point base station information of the UE, and performs the foregoing functions. The target base station updates the saved UE context information.

Specifically, the target base station determines whether there is a UE context, and if yes, sends data directly to the core network according to the core network node address specified in the UE context information, and the anchor base station of the UE does not change.

The target base station determines whether there is a UE context. If not, it passes the context fetch process (the UE context is obtained, the target base station needs to indicate in the process, the anchor base station still needs to reserve the UE context, and the anchor base station of the UE does not change.

The target base station may also delete the UE context information based on a timer.

It is easy to see that the solution can reduce the signaling overhead in the burst small data scenario and improve the resource utilization of the operator. In addition to reducing signaling overhead, data transmission can be performed faster because the data is transmitted without first having to undergo a state transition.

Those skilled in the art will appreciate that embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) including computer usable program code.

The present invention has been described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (system), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device. Means for implementing the functions specified in one or more of the flow or in a block or blocks of the flow chart.

These computer program instructions can also be stored in a particular computer capable of booting a computer or other programmable data processing device In a computer readable memory that operates in a computer readable memory, causing instructions stored in the computer readable memory to produce an article of manufacture comprising instruction means implemented in a block or in a flow or a flow diagram and/or block diagram of the flowchart The functions specified in the boxes.

These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device. The instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

It is apparent that those skilled in the art can make various modifications and variations to the invention without departing from the spirit and scope of the invention. Thus, it is intended that the present invention cover the modifications and modifications of the invention

Claims (24)

A data or signaling transmission method, comprising: Receiving data or signaling sent by the user equipment UE in the inactive inactive state on the base station; Transmitting data or signaling to the core network according to the context information of the UE. The method of claim 1, wherein the transmitting data or signaling to the core network according to the context information of the UE comprises: Determining, according to the context information of the UE, whether the base station is an anchor base station; If it is an anchor base station, sending data or signaling to a core network node that establishes a dedicated connection of the UE; If it is not the anchor base station, the base station initiates a radio access network RAN anchor update procedure, and updates the anchor base station to the current base station, and sends data or signaling to the core network node in the context information of the UE. The method according to claim 1, wherein the context information of the UE is a UE context obtained by initiating a context extraction Context fetch process to an anchor base station according to an inactive ID or an anchor base station ID reported by the UE; Or, is UE context information obtained from an anchor base station before receiving UE data or signaling; Or, it is UE context information stored on the base station when the base station is an anchor base station. The method of claim 2 or 3, further comprising: Generating, to the core network node in the context information of the UE, an RAN anchor update procedure for updating the anchor base station of the UE, and updating the anchor base station to the current base station; The sending data or signaling to the core network node in the context information of the UE is sent during the initiation of the RAN anchor update process, or is sent after the RAN anchor update process is completed. The method of claim 4, further comprising: The UE is notified to update the anchor base station information or the inactive ID information in the saved UE context. The method according to claim 1, wherein the data is transmitted to the core network according to the context information of the UE, and the data is sent to the core network node in the context information of the UE. The method according to claim 6, wherein the context information of the UE is a UE context obtained by initiating a Context fetch process to an anchor base station according to an inactive ID or an anchor base station ID reported by the UE; Or, it is UE context information obtained from an anchor base station before receiving UE data. The method of claim 7, wherein when the UE context is obtained through a context fetch process, the method further comprises: Set a timer; If the timer expires and the UE does not send data, the context information of the UE is deleted. A data or signaling sending method, comprising: Determining data or signaling that the UE in the inactive state needs to send; The data or signaling is sent to the base station in an inactive state. The method of claim 9 further comprising: The inactive ID or the anchor base station ID is reported to the base station. The method of claim 9 or 10, further comprising: The anchor base station information or the inactive ID information in the saved UE context is updated according to the base station notification. A data or signaling transmission device, comprising: a receiving module, configured to receive data or signaling sent by the UE in an inactive state at the base station; The base station sending module is configured to send data or signaling to the core network according to the context information of the UE. The apparatus according to claim 12, wherein the base station transmitting module is further configured to determine, according to the context information of the UE, whether the base station is an anchor point when transmitting data or signaling to the core network according to the context information of the UE. a base station; if it is an anchor base station, transmitting data or signaling to a core network node that establishes a dedicated connection of the UE; if not an anchor base station, the base station initiates a RAN anchor update procedure, and updates the anchor base station to the current base station, The core network node in the context information of the UE sends data or signaling. The apparatus according to claim 12, wherein the base station sending module is further configured to: initiate an Context fetch process to the anchor base station to obtain context information of the UE according to the inactive ID or the anchor base station ID reported by the UE; or, receive The context information of the UE is obtained from the anchor base station before the UE data or signaling; or, when the base station is the anchor base station, the UE context information stored on the base station is used. The apparatus according to claim 13 or 14, wherein the base station transmitting module is further configured to initiate, to the core network node in the context information of the UE, an RAN anchor update procedure for updating the anchor base station of the UE, and Updating the anchor base station to the current base station; transmitting data or signaling during the initiation of the RAN anchor update procedure, or transmitting data or signaling after the RAN anchor update procedure is completed. The apparatus according to claim 15, wherein the base station transmitting module is further configured to notify the UE to update anchor point base station information or inactive ID information in the saved UE context. The apparatus according to claim 12, wherein the base station transmitting module is further configured to: when transmitting data to the core network according to the context information of the UE, send data to a core network node in the context information of the UE. The apparatus according to claim 17, wherein the base station sending module is further configured to: according to the inactive ID or the anchor base station ID reported by the UE, initiate a Context fetch process to the anchor base station to obtain context information of the UE; or, receive The context information of the UE is obtained from the anchor base station before the UE data. The apparatus according to claim 18, wherein the base station sending module is further configured to: when the UE context is obtained through the context fetch process, set a timer; if the timer expires, and the UE does not send data, delete the context of the UE. information. A data or signaling device, comprising: a determining module, configured to determine data or signaling that the UE in the inactive state needs to send; The UE sending module is configured to send the data or signaling to the base station in an inactive state. The device of claim 20, further comprising: The reporting module is configured to report the inactive ID or the anchor base station ID to the base station. The device according to claim 20 or 21, further comprising: And an update module, configured to update, according to the base station notification, the anchor point base station information or the inactive ID information in the saved UE context. A data or signaling transmission device, comprising: A processor for reading a program in the memory, performing the following process: Data processing according to the needs of the transceiver; A transceiver for receiving and transmitting data under the control of a processor, performing the following processes: Receiving data or signaling sent by the UE in the inactive state at the base station; Transmitting data or signaling to the core network according to the context information of the UE. A data or signaling device, comprising: A processor for reading a program in the memory, performing the following process: Determining data or signaling that the UE in the inactive state needs to send; A transceiver for receiving and transmitting data under the control of a processor, performing the following processes: The data or signaling is sent to the base station in an inactive state.

Images