CN107635258B

CN107635258B - data or signaling sending and transmitting method and device

Info

Publication number: CN107635258B
Application number: CN201610566437.0A
Authority: CN
Inventors: 汪颖; 刘爱娟; 刘佳敏
Original assignee: China Academy of Telecommunications Technology CATT
Current assignee: China Academy of Telecommunications Technology CATT; Datang Mobile Communications Equipment Co Ltd
Priority date: 2016-07-18
Filing date: 2016-07-18
Publication date: 2019-12-13
Anticipated expiration: 2036-07-18
Also published as: WO2018014661A1; CN107635258A

Abstract

The invention discloses a method and a device for sending and transmitting data or signaling, which comprises the following steps: determining data or signaling required to be sent by inactive UE on a terminal side; and sending the data or the signaling to the base station in an inactive state. On the base station side, receiving data or signaling sent by inactive UE on the base station; and sending data or signaling to a core network according to the context information of the UE. The invention can reduce the signaling overhead in the scene of sparsely sending data and improve the resource utilization rate of operators. In addition to reducing signaling overhead, data or signaling transmission can be performed faster because data or signaling is transmitted without performing state transition in a signaling flow first and then transmitting the data or signaling.

Description

data or signaling sending and transmitting method and device

Technical Field

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

Background

the following introduces UE (User Equipment) status and behavior based on LTE (Long Term Evolution) system.

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

actions that can be performed in RRC _ IDLE (RRC IDLE state):

-PLMN (Public Land Mobile Network) selection;

NAS (Non Access Stratum ) configures DRX (Discontinuous Reception);

-system information broadcast;

-paging;

mobility in Cell reselection mode;

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

-eNB (evolved base station) does not save UE context (UE context information);

-transmit-receive (D2D (Device-to-Device) communication procedures) where sidelink (direct link) communication is possible;

notification and listening of sildelink discovery (D2D discovery procedure).

RRC _ CONNECTED (RRC connection):

-the UE has a connection of E-UTRAN-RRC (E-UTRAN: Evolution-Universal Radio Access Network, evolved Global Terrestrial Radio Access Network);

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

-the E-UTRAN knows the Cell to which the UE belongs and allocates an intra-Cell UE identity C-RNTI (Cell-Radio Network Temporary identity);

the Network and the UE can send and receive data by using the C-RNTI;

-Network controlled mobility;

-neighbor cell measurements;

-enabling transmission and reception of sidelink communications (D2D communications);

-notification and listening of sildelink discovery (D2D discovery);

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

-transceiving data between the UE and the network;

-the UE listening to a control signalling channel on the shared data channel to see if there is a transmission on the shared data channel allocated to the UE.

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

the DRX cycle is controlled by the eNB, configured according to the UE power saving and activity level of resource utilization.

The currently supported state transition procedure is:

From IDLE to CONNECTED state, the terminal needs to perform an access or reestablishment procedure. From the CONNECTED state, the IDLE state may be entered by a release procedure.

in the existing terminal state, except that the RRC connection state is allocated with the terminal air interface transmission unique identifier C-RNTI, data can be directly received and transmitted, when data needs to be transmitted in other states, the terminal enters the RRC connection state first, establishes RRC connection, and acquires the terminal air interface transmission unique identifier for data transmission, such as the C-RNTI, so as to perform subsequent data transmission.

in other words, the prior art is also deficient in that: data transmission can be performed only after the RRC connection is established after the RRC connection state is entered.

Disclosure of Invention

The invention provides a method and a device for sending and transmitting data or signaling, which are used for solving the problem that UE (user equipment) in an inactive state cannot send and transmit the data or the signaling.

the embodiment of the invention provides a data or signaling transmission method, which comprises the following steps:

Receiving data or signaling sent by inactive UE on a base station;

And sending data or signaling to a core network according to the context information of the UE.

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

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

if the anchor point base station exists, sending data or signaling to a core network node establishing the UE special connection;

if not, the base station initiates a RAN anchor update process, updates the anchor base station to be a current base station, and sends data or signaling to a 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 procedure to an anchor base station according to an inactive ID reported by the UE or an anchor base station ID;

or, UE context information obtained from the anchor base station before receiving UE data or signaling;

or, when the base station is an anchor base station, the UE context information stored in the base station.

Preferably, further comprising:

Initiating a RAN anchor point updating process for updating an anchor point base station of the UE to a core network node in the context information of the UE, and updating the anchor point base station to be a current base station;

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

Preferably, further comprising:

and informing the UE to update the anchor base station information or inactive ID information in the stored 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.

Or, UE context information obtained from the anchor base station before receiving the UE data.

Preferably, when obtaining the UE context through the context fetch procedure, further comprising:

setting a timer;

And if the timer is overtime and the UE has no data transmission, deleting the context information of the UE.

The embodiment of the invention provides a data or signaling sending method, which comprises the following steps:

Determining data or signaling required to be sent by the inactive UE;

And sending the data or the signaling to the base station in an inactive state.

preferably, further comprising:

and reporting an inactive ID or an anchor base station ID to the base station.

preferably, further comprising:

And updating the anchor base station information or inactive ID information in the stored UE context according to the base station notification.

The embodiment of the invention provides a data or signaling transmission device, which comprises:

The receiving module is used for receiving data or signaling sent by inactive UE on a base station;

and the base station sending module is used for sending 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 determine whether the base station is an anchor base station according to the context information of the UE when sending data or signaling to the core network according to the context information of the UE; if the anchor point base station exists, sending data or signaling to a core network node establishing the UE special connection; if not, the base station initiates a RAN anchor update process, updates the anchor base station to be a current base station, and sends data or signaling to a core network node in the context information of the UE.

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

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

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

preferably, the base station sending module is further configured to send data to a 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 initiate a Context fetch process to the anchor base station according to an inactive ID reported by the UE or the anchor base station ID to obtain Context information of the UE; alternatively, context information for the UE is obtained from the anchor base station prior to receiving the UE data.

preferably, the base station sending module is further configured to set a timer when the UE context is obtained through a context fetch procedure; and if the timer is overtime and the UE has no data transmission, deleting the context information of the UE.

the embodiment of the invention provides a data or signaling sending device, which comprises:

The determining module is used for determining data or signaling which needs to be sent by the inactive UE;

And the UE sending module is used for sending the data or the signaling to the base station in an inactive state.

preferably, further comprising:

And the reporting module is used for reporting the inactive ID or the anchor base station ID to the base station.

preferably, further comprising:

and the updating module is used for updating the anchor point base station information or the inactive ID information in the stored UE context according to the base station notification.

the invention has the following beneficial effects:

in the technical solution provided in the embodiment of the present invention, after receiving data or signaling sent by inactive UE, the base station sends the data or signaling to the core network according to the context information of the UE. Therefore, the technical scheme that the UE sends and transmits data or signaling in an inactive state is provided.

It is easy to see that after the scheme is adopted, the signaling overhead in a scene of sparsely sending data can be particularly reduced, and the resource utilization rate of an operator is improved. In addition to reducing signaling overhead, data or signaling transmission can be performed faster because data or signaling is transmitted without performing state transition in a signaling flow first and then transmitting the data or signaling.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a diagram illustrating a prior art network deployment architecture;

FIG. 2 is a diagram of a network deployment structure II in the prior art;

fig. 3 is a schematic diagram of an implementation flow of a data or signaling sending method on a terminal side in an embodiment of the present invention;

fig. 4 is a schematic flow chart of an implementation of a data or signaling transmission method on a base station side in an embodiment of the present invention;

FIG. 5 is a schematic flow chart of an embodiment 1 of the present invention;

FIG. 6 is a schematic flow chart of the embodiment 2 of the present invention;

FIG. 7 is a schematic flow chart illustrating the implementation of embodiment 3 of the present invention;

Fig. 8 is a schematic structural diagram of a data or signaling transmission apparatus in an embodiment of the present invention;

fig. 9 is a schematic structural diagram of a data or signaling sending apparatus in an embodiment of the present invention;

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

Fig. 11 is a schematic diagram of a UE structure according to an embodiment of the present invention.

Detailed Description

The inventor notices in the process of invention that:

the currently supported state transition procedure is:

However, there are other special conditions as follows:

PSM (Power Save Mode) of CN (Core Network) corresponds to IDLE state of RRC. In this state, the network stores context of the UE, and resumes the context with an identifier of one resume allocated to the UE.

in the ongoing discussion of light connection, in the case of light connection, the user is in a connected state as seen from the core network, but the air interface is already not connected. In this case, the terminal performs mobility by cell reselection, and the access network side retains the context information of the terminal. The base station initiates paging according to the arrival of the downlink data, and the terminal receives and transmits data after entering a connection state. If the uplink has data to send, the terminal can initiate a resume process to recover the link, and data sending is performed after the terminal enters a connected state.

newly introduced terminal state: inactive connected state (inactive state) in which the following behavior is allowed:

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

mobility is UE-performed, within a network-side pre-configured RAN tracking area, by cell reselection, instead of a handover procedure;

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

In the Inactive state, the network side allocates an effective RAN identifier in a certain area for the terminal, and the identifier is used for identifying the terminal in the Inactive state, and can be used for the network side to search for the terminal or to use the identifier as an identity to identify and enter a connection state when the terminal actively initiates uplink access. May be referred to as inactive UE ID or resume UE ID. The identifier is different from a globally unique IMSI (International Mobile Subscriber Identity) or a connected terminal identifier C-RNTI, the length of the identifier is between the International Mobile Subscriber Identity (International Mobile Subscriber Identity) and the International Mobile Subscriber Identity (International Mobile Subscriber Identity) (for example, the length of an inactive UE ID is 40 bits, and the length of the C-RNTI is 16 bits), the identifier is only valid in a certain area including a plurality of cells or a plurality of enbs, and if the area is exceeded, the terminal needs to update the inactive UE ID.

However, with the development of wireless communication systems, terminal types and service types are diversified, and the requirements of saving power, saving network resources, and satisfying various service types coexist. For example, in order to ensure power saving and fast data transmission of the terminal at the same time, an inactive state of the terminal is introduced, and in this state, the terminal maintains core network connection, but does not perform conventional operations (such as handover, uplink timing update, radio link monitoring, and the like) in an air interface connection state, and does not allocate a terminal identifier (such as C-RNTI) directly used for air interface transmission, so that the processes of entering the RRC connection state first, establishing RRC connection, acquiring the identifier, and performing subsequent data transmission cannot directly perform air interface scheduling transmission.

it can be seen that the above-mentioned procedures of entering the RRC connection state, establishing the RRC connection, obtaining the identifier, and performing subsequent data transmission are not favorable for fast transmission when data arrives, and if only a small burst data packet needs to be sent, such as a typical MTC (Machine Type Communication) service, the terminal enters the connection state and needs to enter an idle or inactive state in order to save power after sending a small data packet, and this state transition will cause signaling overhead, and if the number of terminals is large (such as an MTC, active MTC scenario), this signaling overhead is almost unacceptable.

based on this, the embodiment of the present invention will solve how to perform fast data or signaling transmission in the inactive state. The following describes embodiments of the present invention with reference to the drawings.

In the description process, the implementation of the UE and the base station will be described separately, and then an example of the implementation of the UE and the base station in cooperation will be given to better understand the implementation of the scheme given in the embodiment of the present invention. Such an explanation does not mean that the two must be implemented together or separately, and actually, when the UE and the base station are implemented separately, the UE and the base station solve the problems on the UE side and the base station side, respectively, and when the two are used in combination, a better technical effect is obtained.

two embodiments are also provided in the embodiment of the present invention, and the applications are respectively identified as a first embodiment and a second embodiment, wherein the specific embodiment of the first embodiment will be described in examples 1 and 2, and the specific embodiment of the second embodiment will be described in example 3. Specifically, the method comprises the following steps:

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

Namely: after the UE is converted from the connected state to the inactive state, when the base station receives uplink data or signaling of the terminal, the target base station sends the data or signaling to the core network according to the obtained or stored UE context information or information (anchor base station identifier or inactive UE ID) reported by the UE.

The first concrete mode is as follows: the target base station judges whether the target base station is an anchor base station of the UE, the anchor base station is a base station which establishes special connection of the UE with a core network node, if not, a RAN anchor updating process is initiated to the core network node in the context of the UE, and the message can carry uplink data or an action command to be transmitted; or the target base station sends the uplink data or signaling to be transmitted to the core network after the RAN anchor point updating process is finished.

further, if the target base station is not the UE anchor base station, the target base station needs to notify the UE of updating the UE anchor base station, and may send a new anchor base station identifier to the UE, or may reallocate an inactive UE ID to the UE, where the identifier includes the anchor base station identifier, and this information is used by the subsequent target base station to determine the anchor base station information of the UE, and after the above-described functions are performed. And the target base station updates the stored UE context information.

The second concrete mode is as follows: and the target base station judges whether the target base station is the anchor base station of the UE, and if not, the target base station directly sends data to the core network according to the core network node address appointed in the obtained or stored UE context information. If the target base station obtains the UE context through a 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 it leaves the connected state and enters the inactive state, or the base station/cell storing all the access network related context information of the UE, or the access network node terminating the S1 connection of the UE is described with an anchor base station for convenience. The anchor base station of the UE has the following typical characteristics:

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

-for the core network, consider the UE under the node;

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

-the UE is assigned an inactive ID, using which the anchor node can be found, further finding context information for the UE.

For a UE in an Inactive state, since the UE does not need to notify the network side when moving 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 will connect and communicate with the base station if it needs to send data or signaling, and this base station is called a target base station of the UE in the Inactive state. The target base station may be different from or the same as the anchor base station of the UE. Generally, an interface is established between the target base station and the anchor base station of the UE, and the interface can be used for interacting UE information.

First, a structure of an implementation environment-RAN (Radio Access Network) side of the technical solution provided in the embodiment of the present invention is briefly described below. Two possible network deployment architectures for future mobile communications will be described.

Fig. 1 is a schematic diagram of a network deployment structure, as shown, the architecture in the diagram is: base station + terminal, is a typical LTE architecture. The eNB is provided with a plurality of cells (cells), the terminal UE and the cells perform air interface data transceiving under a connection state, and the connection state UE is allocated with a unique UE identifier C-RNTI in the cells.

fig. 2 is a schematic diagram of a network deployment structure, as shown in the figure, the architecture in the diagram is: the network side nodes are divided into CUs (Central Unit) and DUs (Distributed Unit), and the user side nodes are terminals.

fig. 2 is a structure that may be adopted in future mobile communication 5G, where a network side node includes a central unit and a distributed unit, where one central unit controls multiple distributed units deployed in a certain area, and these distributed units perform air interface Transmission with a terminal specifically through a Transmission Reception Point (TRP). One or more transmission points can serve the terminal at the same time to transmit data, and no matter which mode is adopted, data scheduling and transmission are carried out by a terminal air interface unique identifier distributed to the terminal by a network side, wherein the identifier can be C-RNTI or TRP-RNTI.

the technical solution provided in the embodiments of the present invention is applicable to at least the two RAN architectures. In the following, a unified description is given, in which a terminal unique identifier used for terminal connection state transmission is referred to as a terminal air interface transmission unique identifier, and specifically, the identifier is a C-RNTI in the conventional LTE. The terminal in the Inactive state uniquely identifies the Inactive UE ID in the area. And the network side wireless signaling and data transceiving nodes are all referred to as base stations regardless of being enbs in the first deployment structure or CUs/DUs (specifically, TRPs) in the second deployment structure. The technical scheme provided in the embodiment of the invention is as follows:

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

Step 301, determining data or signaling that the inactive UE needs to send;

And step 302, sending the data or the signaling to the base station in an inactive state.

in implementation, in order to enable the base station to obtain the context information of the UE, the method may further include:

and reporting an inactive ID or an anchor base station ID to the base station.

in the implementation, according to the actual situation, after the anchor base station is changed, the method may further include:

In specific implementation, the method can comprise the following steps:

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

or receiving inactive UE ID of RAN tracking area redistributed by the base station, wherein the ID comprises anchor base station ID, and updating the anchor base station according to the ID.

Fig. 4 is a schematic flow chart of an implementation of a data or signaling transmission method on a base station side, as shown in the figure, the method may include:

step 401, receiving data or signaling sent by inactive UE on a base station;

step 402, sending data or signaling to the core network according to the context information of the UE.

the first method is as follows:

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

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

Alternatively, it may be UE context information obtained from the anchor base station before receiving UE data or signaling;

In the implementation, the method can further comprise the following steps:

in implementation, the method can comprise the following steps:

sending a new anchor base station identifier to the UE;

Or the UE is re-allocated with inactive UE ID, and the identification comprises the identification of the anchor base station.

In specific implementation, the target base station judges whether the target base station is an anchor base station of the UE, if not, the target base station initiates a RAN anchor updating process to a core network node in the context of the UE, and the message can simultaneously carry uplink data or signaling to be transmitted; or the target base station sends the uplink data or signaling to be transmitted to the core network after the RAN anchor point updating process is finished.

The following is an example.

example 1:

in this embodiment, an implementation process is described in which a target base station receiving UE data or signaling performs RAN anchor update to a core network and simultaneously transmits small data and signaling.

fig. 5 is a schematic flow chart of the implementation of embodiment 1, and as shown in the figure, the implementation may include:

step 501: the UE enters the inactive state.

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

step 503: the target base station initiates the RAN anchor update procedure (carrying data/signaling).

specifically, the target base station judges whether the target base station is an anchor base station of the UE according to the obtained or stored UE context information, and if not, initiates a RAN anchor update process to a core network node in the UE context for updating the CP/UP connection between the UE RAN and the CN.

in a specific implementation, the message may simultaneously carry uplink data or signaling to be transmitted. After this step is performed, the target base station becomes the anchor base station of the UE.

The flow indicated by the dotted line in the figure is a flow for acquiring the UE context information executed when the UE context information is not stored. In the process, the target base station can initiate a Context fetch process to the anchor base station according to an inactive ID reported by the UE or the ID of the anchor base station to obtain the Context of the UE; or obtain the saved UE context information from the anchor base station before receiving the UE data or signaling.

Step 504: and the target base station informs the UE to update the anchor base station.

specifically, a new anchor base station identifier may be sent to the UE, or an inactive UE ID may be reallocated to the UE, where the identifier includes an anchor base station identifier, and this information is used by the subsequent target base station to determine the anchor base station information of the UE and execute the related function. And the target base station updates the stored UE context information.

example 2:

In this embodiment, an implementation process is described in which a target base station receiving UE data or signaling first performs RAN anchor update to a core network and then transmits small data and signaling.

fig. 6 is a schematic flow chart of the implementation of embodiment 2, as shown in the figure, the implementation may include:

step 601: the UE enters the inactive state.

step 602: and the UE sends data or signaling to the target base station.

Step 603: the target base station initiates a RAN anchor update procedure.

Specifically, the target base station judges whether the target base station is an anchor base station of the UE according to the obtained or stored UE context information, and if not, initiates a RAN anchor update process to a core network node in the UE context for updating the CP/UP connection between the UE RAN and the CN. After this step is performed, the target base station will become the anchor base station for the UE.

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

step 605: and the target base station informs the UE to update the anchor base station.

Specifically, the target base station notifies the UE of updating the anchor base station, may send a new anchor base station identifier to the UE, or may reallocate an inactive UE ID to the UE, where the identifier includes an anchor base station identifier, and this information is used for the subsequent target base station to determine the anchor base station information of the UE and execute the related function. And the target base station updates the stored UE context information.

The second method comprises the following steps:

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

In 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 reported by the UE or an anchor base station ID;

in an implementation, when the UE context is obtained through the context fetch procedure, the method may further include:

setting a timer;

In specific implementation, the target base station judges whether the target base station is an anchor base station of the UE, and if not, the target base station directly sends data to a core network according to the core network node address specified in the obtained or stored UE context information. If the target base station obtains the UE context through a 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;

The following is an example.

example 3:

In this embodiment, an implementation process is described in which a target base station receiving UE data directly sends small data to a core network according to address information in a UE context.

fig. 7 is a schematic flow chart of the implementation of embodiment 3, as shown in the figure, the implementation may include:

Step 701: the UE enters the inactive state.

step 702: and the UE sends data or signaling to the target base station.

Step 703: the Context fetch procedure is initiated.

Specifically, if the target base station already has the saved UE context, this step may be omitted, and the anchor base station of the UE is unchanged. If the target base station has no UE Context, initiating a Context fetch process to the anchor base station according to an inactive ID reported by the UE or the ID of the anchor base station to obtain the UE Context.

step 704: and 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 stored UE context information.

Step 705: and setting a timer and deleting the UE context.

specifically, if the target base station obtains the UE context through the context fetch procedure, the target base station may set a timer, and 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 embodiments of the present invention further provide a data or signaling sending apparatus and a data or signaling transmission apparatus, and because the principles of these apparatuses for solving the problems are similar to the data or signaling sending method and the data or signaling transmission method, the implementation of these apparatuses may refer to the implementation of the methods, and the repeated parts are not described again.

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

a receiving module 801, configured to receive data or a signaling sent by an inactive UE on a base station;

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

In implementation, the base station sending module is further configured to determine whether the base station is an anchor base station according to the context information of the UE when sending data or signaling to the core network according to the context information of the UE; if the anchor point base station exists, sending data or signaling to a core network node establishing the UE special connection; if not, the base station initiates a RAN anchor update process, updates the anchor base station to be a current base station, and sends data or signaling to a core network node in the context information of the UE.

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

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

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

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

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

In an implementation, the base station sending module is further configured to set a timer when the UE context is obtained through a context fetch procedure; and if the timer is overtime and the UE has no data transmission, deleting the context information of the UE.

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

A determining module 901, configured to determine data or signaling that needs to be sent by an inactive UE;

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

In an implementation, the method further comprises the following steps:

in an implementation, the method further comprises the following steps:

for convenience of description, each part of the above-described apparatus is separately described as being functionally divided into various modules or units. Of course, the functionality of the various modules or units may be implemented in the same one or more pieces of software or hardware in practicing the invention.

When the technical scheme provided by the embodiment of the invention is implemented, the implementation can be carried out 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, which is used to read the program in the memory 1020, executes the following processes:

Processing data according to the requirement of the transceiver;

a transceiver 1010 for receiving and transmitting data under the control of the processor 1000, performing the following processes:

receiving data or signaling sent by inactive UE on a base station;

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

In an implementation, the method further comprises the following steps:

in an implementation, the method further comprises the following steps:

in an implementation, when the UE context is obtained through a context fetch procedure, the method further includes:

setting a timer;

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

Fig. 11 is a schematic structural diagram of a UE, and as shown in the figure, the UE includes:

The processor 1100, which reads the program in the memory 1120, performs the following processes:

determining data or signaling required to be sent by the inactive UE;

A transceiver 1110 for receiving and transmitting data under the control of the processor 1100, performing the following processes:

And sending the data or the signaling to the base station in an inactive state.

in an implementation, the method further comprises the following steps:

and reporting an inactive ID or an anchor base station ID to the base station.

In an implementation, the method further comprises the following steps:

where in fig. 11, the bus architecture may include any number of interconnected buses and bridges, with one or more processors, represented by processor 1100, and various circuits, represented by memory 1120, being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 1110 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium. For different user devices, the user interface 1130 may also be an interface capable of interfacing with a desired device, including but not limited to a keypad, display, speaker, microphone, joystick, etc.

the processor 1100 is responsible for managing the bus architecture and general processing, and the memory 1120 may store data used by the processor 1100 in performing operations.

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

Specifically, the following is also provided: and the target base station judges whether the target base station is the anchor base station of the UE, and if not, initiates a RAN anchor updating process to the core network node in the context of the UE for updating the anchor base station of the UE.

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

the target base station may also inform the UE of the update of the anchor base station if the target base station is not the UE anchor base station. Specifically, a new anchor base station identifier may be sent to the UE, or an inactive UE ID may be reassigned to the UE, where the identifier includes an anchor base station identifier, and this information is used by the subsequent target base station to determine the anchor base station information of the UE, and perform the above-described functions. And the target base station updates the stored UE context information.

Specifically, the following is also provided: the target base station judges whether UE context exists, if so, the target base station directly sends data to the core network according to the core network node address specified in the UE context information, and the anchor point base station of the UE is unchanged.

The target base station judges whether a UE context exists, if not, the UE context is obtained through a context fetch process (the target base station needs to indicate in the process, the anchor base station still needs to keep the UE context, and the anchor base station of the UE is not changed.

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

it is easy to see that the scheme can reduce the signaling overhead in the scene of sparsely sending data and improve the resource utilization rate of operators. In addition to reducing signaling overhead, data transmission can be performed faster because the data transmission does not need to be performed after the signaling flow is performed for state transition.

as will be appreciated by one skilled in the art, embodiments of the present invention may 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 an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.

The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

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

Claims

1. a method for data or signaling transmission, comprising:

receiving data or signaling sent by User Equipment (UE) in an inactive state on a base station;

sending data or signaling to a core network according to the context information of the UE;

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

if not, the base station initiates a radio access network RAN anchor point updating process, updates the anchor point base station to be a current base station, and sends data or signaling to a core network node in the context information of the UE.

2. The method of claim 1, wherein the Context information of the UE is a UE Context obtained by initiating a Context fetch task procedure to an anchor base station according to an inactive ID reported by the UE or an anchor base station ID;

3. The method of claim 2, further comprising:

4. the method of claim 3, further comprising:

5. The method of claim 1, wherein sending data to the core network according to the context information of the UE is sending data to a core network node in the context information of the UE.

6. the method of claim 5, wherein the Context information of the UE is a UE Context obtained by initiating a Context fetch procedure to an anchor base station according to an inactive ID reported by the UE or an anchor base station ID;

7. The method of claim 6, wherein when obtaining the UE context through a context fetch procedure, further comprising:

setting a timer;

8. A method for transmitting data or signaling, comprising:

determining data or signaling required to be sent by the inactive UE;

sending the data or signaling to the base station in an inactive state to enable the base station to perform the following operations:

9. The method of claim 8, further comprising:

and reporting an inactive ID or an anchor base station ID to the base station.

10. the method of claim 8 or 9, further comprising:

11. A data or signaling transmission apparatus, comprising:

A base station sending module, configured to send data or signaling to a core network according to the context information of the UE; the base station sending module is further used for determining whether the base station is an anchor base station according to the context information of the UE; if the anchor point base station exists, sending data or signaling to a core network node establishing the UE special connection; if not, the base station initiates a radio access network RAN anchor point updating process, updates the anchor point base station to be a current base station, and sends data or signaling to a core network node in the context information of the UE.

12. the apparatus of claim 11, wherein the base station sending module is further configured to initiate a Context fetch procedure to the anchor base station to obtain Context information of the UE according to an inactive ID reported by the UE or an anchor base station ID; or obtaining context information of the UE from the anchor base station before receiving UE data or signaling; alternatively, when the base station is an anchor base station, UE context information stored on the base station is used.

13. the apparatus of claim 12, wherein the base station sending module is further for initiating a RAN anchor update procedure to a core network node in the context information of the UE for updating an anchor base station of the UE and updating the anchor base station to be a current base station; and sending data or signaling in the process of initiating the RAN anchor point updating, or sending the data or the signaling after the RAN anchor point updating is completed.

14. the apparatus of claim 13, wherein the base station sending module is further configured to notify the UE to update anchor base station information or inactive ID information in the saved UE context.

15. the apparatus of claim 11, wherein the base station sending module is further configured to send data to a 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.

16. the apparatus of claim 15, wherein the base station sending module is further configured to initiate a Context fetch procedure to the anchor base station to obtain Context information of the UE according to an inactive ID reported by the UE or an anchor base station ID; alternatively, context information for the UE is obtained from the anchor base station prior to receiving the UE data.

17. The apparatus of claim 16, wherein the base station transmitting module is further for setting a timer when a UE context is obtained through a context fetch procedure; and if the timer is overtime and the UE has no data transmission, deleting the context information of the UE.

18. A data or signaling transmission apparatus, comprising:

A UE sending module, configured to send the data or the signaling to the base station in an inactive state, so that the base station performs the following operations:

19. The apparatus of claim 18, further comprising:

20. The apparatus of claim 18 or 19, further comprising: