CN107318136B - Terminal information transmission method and device - Google Patents

Abstract

The invention provides a method and a device for transmitting terminal information, wherein the method applied to a first transmission node comprises the following steps: determining air interface resources for transmitting information of the terminal with a second transmission node; wherein the second transmission node is a transmission node capable of establishing an air interface with the first transmission node having a predetermined quality; and sending the information of the terminal to the second transmission node on the determined air interface resource, so that the second transmission node can provide service for the terminal according to the information of the terminal after the terminal is switched from the first transmission node to the second transmission node. The embodiment of the invention can enable the second transmission node to serve the terminal in a continuous state, so that the second transmission node can quickly recover the original transmission, the user state is kept, and the data rate is continuous, so that the terminal has no perception on the switching of the service node, the experience of the user in the node switching is improved, and the network efficiency is improved.

Description

Terminal information transmission method and device

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for transmitting terminal information.

Background

In the future development of the mobile communication system, in order to better meet the user requirements and greatly improve the network capacity and throughput, more transmission nodes are inevitably introduced, i.e. the mobile communication system is an ultra-dense network in the future.

In an LTE (long term evolution) system, nodes on the network side are often connected by wires, and as shown in fig. 1, base stations eNB are connected by wires, and the base stations eNB and core network nodes, such as a mobility management unit MME and a serving gateway SGW, are also connected by wires.

The existing terminal UE switching process:

in the existing R8 specification, a typical MME and SGW internal handover procedure is as follows:

the source eNB judges that the terminal needs to be switched based on the measurement report and the RRM information; the source eNB initiates a switching request message to a target eNB, and necessary information is carried to prepare for switching of a target side; the target eNB carries out admission control based on the received QoS information of the evolved radio access bearer E-RAB, configures the requested resource, and reserves the cell radio network temporary identifier (C-RNTI) and a possible random access channel Preamble (RACH Preamble); the target eNB prepares for switching and sends a switching request confirmation to the source eNB, the switching request confirmation message contains a Radio Resource Control (RRC) message which is sent to the terminal and executes switching, the message contains a new C-RNTI, the target eNB safety algorithm indication may contain a special RACHPpreamble and other parameters such as access parameters, SIBs and the like, and the switching request confirmation message may also contain information of a data forwarding channel if needed; once the source eNB receives the handover request acknowledge message or once the handover command starts to be transmitted in downlink, the data forwarding procedure starts. The source eNB carries out operations such as integrity protection, encryption and the like on the RRC connection reconfiguration message transmitted by the target eNB and then transmits the RRC connection reconfiguration message to the terminal; the source eNB sends a Sequence Number (SN) status transfer message to the target eNB, the message carrying uplink PDCP SN reception status and downlink PDCP SN transmission status information of evolved radio access bearers E-RABs (RLC AM services) that need to retain a Packet Data Convergence Protocol (PDCP) status. The receiving state of the uplink PDCP SN at least comprises the PDCP SN of the first lost UL SDU (service data unit) and bit map information of the possible out-of-order UL PDCP SN; the downlink PDCP SN transmission state comprises a next PDCP SN number distributed to the new SDU by the target eNB; and the terminal receives the RRC connection reconfiguration signaling containing the switching information, synchronizes with the target eNB and sends RRC connection reconfiguration completion.

In order to perform lossless data handover, for the user plane, data forwarding is required to be performed, and the process is as follows:

in a handover preparation phase, a user plane tunnel for data forwarding is established between a source eNB and a target eNB. Each E-RAB that needs to forward data establishes a tunnel for forwarding uplink data and forwarding downlink data of another user. In the handover execution phase, user data is forwarded from the source eNB to the target eNB. In the handover completion stage, the source eNB continues forwarding the user plane data until the last packet "end marker". The target eNB receives the end marker and considers that the forwarding data is finished.

In the prior art, when a UE performs an X2 handover between enbs, the enbs generally interact through an X2 interface, and a delay of an X2 interface is generally considered to be about 20 milliseconds, so that the delay of the X2 handover is generally in the order of tens of milliseconds, which may cause a short drop of a UE data rate, and a layer two transmission state inside the UE needs to be reset, which not only reduces user experience but also reduces network efficiency.

Disclosure of Invention

The invention aims to provide a method and a device for transmitting terminal information, which solve the problems that in the prior art, the interaction of network nodes through an X2 interface has longer time delay, so that the terminal is reset and the transmission rate is reduced.

In order to achieve the above object, an embodiment of the present invention provides a method for transmitting terminal information, where the method is applied to a first transmission node, where a current serving node of a terminal is the first transmission node, and the method includes:

determining air interface resources for transmitting information of the terminal with a second transmission node; wherein the second transmission node is a transmission node capable of establishing an air interface with the first transmission node having a predetermined quality;

and sending the information of the terminal to the second transmission node on the determined air interface resource, so that the second transmission node can provide service for the terminal according to the information of the terminal after the terminal is switched from the first transmission node to the second transmission node.

Wherein the step of determining air interface resources for transmitting information of the terminal with the second transmission node comprises:

acquiring configuration information of air interface resources used for transmitting information of a terminal between a second transmission node and the first transmission node;

and determining the air interface resource according to the configuration information of the air interface resource.

The step of obtaining configuration information of air interface resources used for transmitting information of the terminal between the first transmission node and the second transmission node comprises:

and receiving a message that the centralized node needs to switch or add a service node to the terminal, wherein the message is obtained by the centralized node according to the channel information reported by the terminal or the first transmission node, and the message carries configuration information of air interface resources used for transmitting the information of the terminal between the centralized node and the second transmission node.

The step of obtaining configuration information of air interface resources used for transmitting information of the terminal between the first transmission node and the second transmission node comprises:

receiving channel information reported by the terminal or the second transmission node;

determining that the terminal needs to switch or add a service node according to the channel information;

and generating configuration information of air interface resources for transmitting the information of the terminal according to the quantity of the resources required for transmitting the information of the terminal.

Wherein, the step of determining that the terminal needs to switch or add a service node according to the channel information comprises:

when a service node of a terminal is a transmission node, if the first channel quality between a first transmission node and the terminal does not meet the transmission requirement and the second channel quality between a second transmission node and the terminal meets the transmission requirement of the terminal, determining that the terminal needs to switch the service node;

and when the service node of the terminal is the transmission node set, if the quality of a second channel between the second transmission node and the terminal meets the transmission requirement of the terminal, determining that the service node needs to be added to the terminal.

The information of the terminal comprises state information of the terminal, transmission information of the terminal and cache data information of the terminal.

The embodiment of the invention also provides a transmission method of the terminal information, which is applied to a second transmission node and comprises the following steps:

determining air interface resources for transmitting information of a terminal with a first transmission node; the first transmission node is a current service node of a terminal, and the second transmission node is a transmission node capable of establishing an air interface with preset quality with the first transmission node;

and receiving the information of the terminal sent by the first transmission node on the determined air interface resource, and providing service for the terminal according to the information of the terminal after the terminal is switched from the first transmission node.

Wherein the step of determining air interface resources for transmitting information of the terminal with the first transmission node comprises:

receiving configuration information of air interface resources used for transmitting information of a terminal between a first transmission node and the first transmission node;

and determining the air interface resource according to the configuration information of the air interface resource.

Wherein the step of receiving configuration information of air interface resources used for transmitting information of the terminal between the first transmission node and the second transmission node comprises:

and receiving a message that the centralized node needs to switch or add a service node to the terminal, wherein the message is obtained by the centralized node according to the channel information reported by the terminal or the first transmission node, and the message carries configuration information of air interface resources used for transmitting the information of the terminal.

Wherein the step of receiving configuration information of air interface resources used for transmitting information of the terminal between the first transmission node and the second transmission node comprises:

and receiving configuration information of air interface resources for transmitting the information of the terminal, which is generated by the first transmission node according to the quantity of resources required by the information of the terminal after the first transmission node determines that the terminal needs to switch or add a service node according to the channel information reported by the terminal or the second transmission node.

The information of the terminal comprises state information of the terminal, transmission information of the terminal and cache data information of the terminal.

An embodiment of the present invention further provides a transmission apparatus for terminal information, which is applied to a first transmission node, where a current service node of a terminal is the first transmission node, and the apparatus includes:

a first determining module, configured to determine an air interface resource used for transmitting information of a terminal with a second transmission node; wherein the second transmission node is a transmission node capable of establishing an air interface with the first transmission node having a predetermined quality;

an information sending module, configured to send the information of the terminal to the second transmission node on the determined air interface resource, so that after the terminal is switched from the first transmission node to the second transmission node, the second transmission node can provide a service for the terminal according to the information of the terminal.

Wherein the first determining module comprises:

an obtaining module, configured to obtain configuration information of air interface resources used for transmitting information of a terminal with a second transmission node;

a first determining submodule, configured to determine the air interface resource according to configuration information of the air interface resource.

Wherein the acquisition module comprises:

a configuration information receiving module, configured to receive a message that the centralized node needs to switch or add a service node to the terminal, where the message is obtained by the centralized node according to the channel information reported by the terminal or the first transmission node, and the message carries configuration information of air interface resources used for transmitting information of the terminal.

Wherein the acquisition module comprises:

a channel information receiving module, configured to receive channel information reported by the terminal or the second transmission node;

the triggering module is used for determining that the terminal needs to switch or add a service node according to the channel information;

and the configuration information generation module is used for generating the configuration information of the air interface resource for transmitting the information of the terminal according to the quantity of the resources required by the information transmission of the terminal.

Wherein the trigger module comprises:

the first trigger submodule is used for determining that the terminal needs to switch the service node if the first channel quality between the first transmission node and the terminal does not meet the transmission requirement and the second channel quality between the second transmission node and the terminal meets the transmission requirement of the terminal when the service node of the terminal is a transmission node;

and the second triggering submodule is used for determining that the terminal needs to add the service node if the second channel quality between the second transmission node and the terminal meets the transmission requirement of the terminal when the service node of the terminal is the transmission node set.

The information of the terminal comprises state information of the terminal, transmission information of the terminal and cache data information of the terminal.

The embodiment of the invention also provides a transmission device of terminal information, which is applied to a second transmission node, and the device comprises:

a second determining module, configured to determine an air interface resource used for transmitting information of the terminal with the first transmission node; the first transmission node is a current service node of a terminal, and the second transmission node is a transmission node capable of establishing an air interface with preset quality with the first transmission node;

and the information receiving module is used for receiving the information of the terminal sent by the first transmission node on the determined air interface resource and providing service for the terminal according to the information of the terminal after the terminal is switched from the first transmission node.

Wherein the second determining module comprises:

a receiving module, configured to receive configuration information of air interface resources used for transmitting information of a terminal with a first transmission node;

and the determining submodule is used for determining the air interface resources according to the configuration information of the air interface resources.

Wherein the receiving module comprises:

and the first receiving submodule is used for receiving a message, which is obtained by the centralized node according to the terminal or the channel information reported by the first transmission node and needs to switch or add a service node, of the terminal, wherein the message carries configuration information of air interface resources used for transmitting the information of the terminal.

Wherein the receiving module comprises:

and the second receiving submodule is used for receiving configuration information of air interface resources for transmitting the information of the terminal, which is generated according to the quantity of resources required by the information of the terminal after the first transmission node determines that the terminal needs to switch or add a service node according to the channel information reported by the terminal or the second transmission node.

The information of the terminal comprises state information of the terminal, transmission information of the terminal and cache data information of the terminal.

The technical scheme of the invention at least has the following beneficial effects:

in the method and the device for transmitting the terminal information, the first transmission node and the second transmission node of the terminal interact with each other firstly according to the event that the terminal needs to switch the service node or increase the service node, appoint the transmission resource of the wireless interface which needs to be used, and then transmit the terminal information to the second transmission node through the wireless interface at the appointed resource time, so that the second transmission node can serve the terminal in a continuous state, the second transmission node can quickly recover the original transmission, the user state is maintained, the data rate is continuous, the terminal is unaware of the switching of the service node, the experience of the user in the node switching is improved, and the network efficiency is improved.

Drawings

Fig. 1 is a schematic diagram illustrating a connection relationship between network side nodes in an LTE system in the prior art;

fig. 2 is a flowchart illustrating basic steps of a terminal information transmission method according to a first embodiment of the present invention;

fig. 3 is a flowchart illustrating the basic steps of a terminal information transmission method according to a second embodiment of the present invention;

fig. 4 is a flowchart illustrating one of basic steps of a terminal information transmission method according to a third embodiment of the present invention;

fig. 5 is a flowchart illustrating a second basic step of a method for transmitting terminal information according to a third embodiment of the present invention;

fig. 6 is a flowchart illustrating one of basic steps of a method for transmitting terminal information according to a fourth embodiment of the present invention;

fig. 7 is a flowchart illustrating a second basic step of a method for transmitting terminal information according to a fourth embodiment of the present invention;

fig. 8 is a schematic structural diagram of a terminal information transmission apparatus according to a fifth embodiment of the present invention;

fig. 9 is a schematic structural diagram of a terminal information transmission apparatus according to a sixth embodiment of the present invention;

fig. 10 is a schematic structural diagram of a terminal information transmission apparatus according to a seventh embodiment of the present invention;

fig. 11 is a schematic structural diagram of a terminal information transmission apparatus according to an eighth embodiment of the present invention.

Detailed Description

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

First embodiment

As shown in fig. 2, a first embodiment of the present invention provides a method for transmitting terminal information, which is applied to a first transmission node, where a current serving node of a terminal is the first transmission node, and the method includes:

step 11, determining air interface resources used for transmitting information of the terminal between the first transmission node and the second transmission node; wherein the second transport node is a transport node capable of establishing an air interface with the first transport node having a predetermined quality.

In this step, the service node of the terminal may be one node, or may be a node set composed of a plurality of nodes. Specifically, the first transmission node is a current service node of the terminal, and when the node set is adopted to serve the terminal, the first transmission node may be a head node playing a main control role in geometry, or may be any service node storing latest terminal information. The second transmission node is a transmission node capable of establishing an air interface with a preset quality with the first transmission node, and the second transmission node may be one node or a plurality of nodes.

It should be noted that the second transmission node may be a neighboring node of the first transmission node, or may also be a neighboring node of the terminal, which is not specifically limited herein.

Specifically, in an ultra-dense network, a larger intersection exists between coverage of different transmission nodes, and a distance between the transmission nodes is short, so that a wireless interface between the nodes can be established, and a possibility is provided for interaction between the transmission nodes through the wireless interface. The first embodiment of the invention is based on a wireless interface between nodes; i.e. the air interface resources between the first transport node and the second transport node, which are used for transmitting the information of the terminal, are determined, via step 11.

And step 12, sending the information of the terminal to the second transmission node on the determined air interface resource, so that the second transmission node can provide service for the terminal according to the information of the terminal after the terminal is switched from the first transmission node to the second transmission node.

In this step, the first transmission node sends the information of the terminal to the second transmission node on the determined air interface resource, and when the second transmission node is a plurality of nodes, the first transmission node simultaneously sends the information of the terminal to the plurality of second transmission nodes, which is equivalent to multicast channel transmission.

The first embodiment of the present invention provides a terminal information transmission method, which can perform terminal information interaction between dense and small-coverage transmission nodes through an air interface, when a terminal moves between the transmission nodes, a second transmission node can provide a continuous transmission service based on a latest terminal state, and the transmission delay of the air interface is in the millisecond order while the traditional X2 interaction delay is in the tens of millisecond order, thereby avoiding the reduction of terminal reset and transmission rate, and finally improving network efficiency and user experience.

Second embodiment

Correspondingly, the present invention further provides a second embodiment, as shown in fig. 3, where the second embodiment provides a method for transmitting terminal information, and the method is applied to a second transmission node, and the method includes:

step 21, determining air interface resources used for transmitting information of the terminal between the first transmission node and the first transmission node; the first transmission node is a current service node of a terminal, and the second transmission node is a transmission node capable of establishing an air interface with a preset quality with the first transmission node.

In this step, the definitions of the first transmission node and the second transmission node are the same as those of the first transmission node and the second transmission node in step 11, and a description thereof will not be repeated.

Specifically, in an ultra-dense network, a larger intersection exists between coverage of different transmission nodes, and a distance between the transmission nodes is short, so that a wireless interface between the nodes can be established, and a possibility is provided for interaction between the transmission nodes through the wireless interface. The first embodiment of the invention is based on a wireless interface between nodes; i.e. the air interface resources between the first transport node and the second transport node, which are used for transmitting the information of the terminal, are determined, via step 11.

Step 22, receiving the information of the terminal sent by the first transmission node on the determined air interface resource, and providing service for the terminal according to the information of the terminal after the terminal is switched from the first transmission node.

In this step, the second transmission node receives the information of the terminal sent by the first transmission node on the determined air interface resource, and when the second transmission node provides service for the terminal, the second transmission node can provide continuous service for the terminal according to the information of the terminal, so that the terminal has no perception on the switching of the network node, and the network efficiency and the user experience are improved.

The second embodiment of the present invention provides a method for transmitting terminal information at a second transmission node side corresponding to the first embodiment, which enables terminal information interaction between transmission nodes with dense coverage and small coverage through an air interface, when a terminal moves between transmission nodes, the second transmission node can provide a continuous transmission service based on a latest terminal state, and the air interface transmission delay is in the millisecond order while the conventional X2 interaction delay is in the tens of milliseconds order, thereby avoiding terminal reset and transmission rate reduction, and finally improving network efficiency and user experience.

In the first and second embodiments, the information of the terminal includes state information of the terminal, transmission information of the terminal, and cache data information of the terminal.

Specifically, the state information of the terminal mainly refers to the current value of a state variable related to the transmission of the layer two (medium access control layer), the condition of a timer and the like; such as status variables and timer running conditions of the RLC (radio link control layer protocol).

The transmission information of the terminal mainly refers to the specific transmission state of HARQ (hybrid automatic repeat request), whether the HARQ is retransmission data or not, whether retransmission needs to be continued or not, coding, redundancy version and other information; such as transmission information of the MAC layer (medium access control layer) and PDU (power distribution unit) transmission of the RLC layer (radio link control layer).

The buffered data of the terminal mainly refers to new data buffered by the layer two (medium access control layer) and not transmitted by all terminals, data which has been transmitted but has not received an acknowledgement, data which needs to be retransmitted, and the like, such as buffered data of the MAC layer (medium access control layer) and buffered data of the RLC layer (radio link control layer).

Further, in the first embodiment of the present invention, step 11 includes:

step 111, obtaining configuration information of air interface resources used for transmitting information of the terminal with the second transmission node.

Step 112, determining the air interface resource according to the configuration information of the air interface resource.

Accordingly, in a second embodiment of the present invention, step 21 comprises:

step 211, receiving configuration information of air interface resources for transmitting information of the terminal with the first transmission node.

Step 212, determining the air interface resource according to the configuration information of the air interface resource.

It should be noted that, in the foregoing embodiment of the present invention, for different system architectures, the configuration information of the air interface resource is from different functional entities, but both the first transmission node and the second transmission node need to acquire the configuration information of the air interface resource, determine the air interface resource according to the configuration information of the air interface resource, and send or receive information of the terminal on the air interface resource.

The air interface resource generally refers to one or more transmission time intervals TTI, and specific values thereof are specifically configured according to the resource quantity of the terminal information, which is not limited herein.

Third embodiment

A third embodiment of the present invention is directed to a method for transmitting terminal information in a centralized architecture, specifically, as shown in fig. 4, the method for transmitting terminal information at a first transmission node side includes:

step 31, receiving a message that the centralized node needs to switch or add a service node to the terminal according to the channel information reported by the terminal or the first transmission node, where the message carries configuration information of an air interface resource used for transmitting the information of the terminal with the second transmission node.

Step 32, determining the air interface resource according to the configuration information of the air interface resource.

Step 33, sending the information of the terminal to the second transmission node on the determined air interface resource, so that the second transmission node can provide service for the terminal according to the information of the terminal after the terminal is switched from the first transmission node to the second transmission node.

Correspondingly, on the second transmission node side, as shown in fig. 5, the transmission method includes:

step 34, receiving a message that the centralized node needs to switch or add a service node to the terminal according to the channel information reported by the terminal or the first transmission node, where the message carries configuration information of an air interface resource used for transmitting the information of the terminal.

Step 35, determining the air interface resource according to the configuration information of the air interface resource.

Step 36, receiving the information of the terminal sent by the first transmission node on the determined air interface resource, and providing a service for the terminal according to the information of the terminal after the terminal is switched from the first transmission node.

In a centralized architecture, there is typically a local centralized node for centralized management and control of the transport nodes TP. For the terminal, the control plane of the terminal is also attached to the centralized node, and the transmission node is only responsible for data scheduling and transmission. For example, all of the layer three (RRC layer) and security related protocol stacks (e.g. RRC, PDCP, etc.) of the data/signaling bearer of the terminal are located in the centralized node, and the layer two (MAC layer) and the following protocol stacks are located in the transport node (e.g. RLC, MAC, PHY, etc.). When a terminal needs to migrate from a first transmission node to a second transmission node and enjoy continuous service, in order to avoid the influence of resetting and the like on the state of the terminal, all state information, transmission information, cached data information and the like of the terminal need to be forwarded to the second transmission node from the first transmission node, so that the second transmission node can carry out continuous service on the terminal. The maximum purpose of such migration is also to save configuration signaling of the air interface, and avoid the state reset of the terminal, the possible reduction of the data transmission rate, and unnecessary waste of air interface retransmission resources.

Specifically, under a centralized architecture, configuration information of air interface resources is generated by a centralized node, and specifically, the centralized node judges whether the terminal needs to switch service nodes or add service nodes according to channel information reported by the terminal or a first transmission node; when the terminal needs to switch or add a service node, the centralized node respectively sends notification messages to the first transmission node and the second transmission node to notify the two nodes that the service of the terminal needs to be switched or a new service node is added, and simultaneously notifies the two nodes of resource configuration information of the air interface transmission terminal.

Further, the channel information collection process under the centralized architecture is as follows:

the terminal performs normal data transmission at a first transmission node, wherein the transmission node is responsible for data scheduling, data packet organization and the like, and the control plane of the terminal is mainly concentrated on a centralized node. The centralized node performs measurement configuration on the terminal, and is used for measuring and reporting the adjacent nodes by the terminal; or the centralized node configures the resource position of the terminal for uplink periodic signal transmission, and informs the resource configuration to neighboring nodes around the terminal, so that the neighboring nodes can measure the uplink channel of the terminal, and report the measurement result to the centralized node periodically or triggered by an event.

Preferably, the first transmission node needs to collect measurement information about the terminal and report the channel measurement information to the centralized control node. The measurement information may be reported by the terminal, or may be a measurement result (reported by the first transmission node) performed by the first transmission node on the terminal. The measurement report of the terminal is generally a downlink channel measurement condition of the terminal to an adjacent transmission node, and may be reported based on a layer one (e.g., a physical layer) process or a layer three (e.g., an RRC) process. Layer one measurement reporting is generally a measurement result of a short time (e.g., several milliseconds), and the reporting is fast, the overhead is small, and the instantaneous channel quality is reflected; the layer three measurement report is generally the result of measurement processing for a long time (for example, several hundred milliseconds), and the layer three report requires a long time and has a large overhead, which reflects the average channel quality. If a first transmission node is adopted to measure the terminal, the first transmission node measures the uplink signal of the terminal, and each transmission node respectively reports the measurement results meeting the measurement requirements (for example, the received signal level or the quality meets a certain threshold requirement) to the centralized node, and the centralized node comprehensively processes the measurement results. The benefit of the measurement of the transmission node is to save the overhead of reporting, but the terminal needs to be configured with the uplink signal periodically sent for the measurement of the uplink channel of the transmission node.

Furthermore, when the centralized node receives the measurement information, all the measurement information is summarized, and whether the service node needs to be replaced or added is judged, if so, a terminal service node change/update notification signaling needs to be sent to the related transmission node; generally, when the channel quality from the first transmission node to the terminal no longer meets the requirement, and the channel quality from the second transmission node to the terminal meets the transmission requirement, the service node is replaced; when the node set is adopted to serve the terminal, the second transmission node can be added into the service set of the terminal for the reason that the channel quality from the second transmission node to the terminal meets the basic transmission requirement, and then the second transmission node participates in the service of the terminal. In any case, the second transmission node needs to obtain the state information of the terminal, transmit the information, and buffer the data.

The centralized node sends notification messages to the first transmission node and the second transmission node respectively to notify the two nodes that the service of the terminal needs to be switched or a new service node is added, and simultaneously notifies the two nodes for resource allocation of air interface transmission terminal information.

Further, the first transmission node receives the notification message of the centralized node, and transmits the state information of the terminal, the transmission information and the buffer data to the second transmission node on the configured air interface resource for transmitting the terminal information. If the terminal related information data is large and the configured resources are not enough to be transmitted, the first transmission node can also transmit a scheduling signaling to the second transmission node to inform the resources used by the subsequent transmission. Further, since the first transmission node and the second transmission node belong to known nodes in the network, the first transmission node can perform beamforming to the second transmission node to improve transmission efficiency. The second transmission node receives the notification message of the centralized node and receives the terminal information from the first transmission node on the configured air interface resource for transmitting the terminal information; and then providing the terminal with subsequent data transmission service.

A third embodiment of the present invention is a method for transmitting terminal information based on a centralized architecture, where in the third embodiment, a centralized node performs centralized control on transmission nodes, the centralized node performs change notification on a first transmission node and a second transmission node, and the notification carries resource configuration information for information of an air interface transmission terminal, and at a configured air interface resource location, the first transmission node sends state information, transmission information, and cache data of the terminal to the second transmission node, and the second transmission node can continue to perform a subsequent service on the terminal, thereby saving configuration signaling of an air interface, avoiding reduction in data transmission rate and unnecessary waste of air interface retransmission resources due to state reset of the terminal, and improving network efficiency and user experience.

Fourth embodiment

A fourth embodiment of the present invention is directed to a method for transmitting terminal information in a distributed architecture, and specifically, as shown in fig. 6, the method for transmitting, on a first transmission node side, includes:

step 41, receiving the channel information reported by the terminal or the second transmission node.

And step 42, determining that the terminal needs to switch or add a service node according to the channel information.

Step 43, generating configuration information of air interface resources for transmitting the information of the terminal according to the number of resources required for transmitting the information of the terminal.

Step 44, determining the air interface resource according to the configuration information of the air interface resource.

Step 45, sending the information of the terminal to the second transmission node on the determined air interface resource, so that the second transmission node can provide service for the terminal according to the information of the terminal after the terminal is switched from the first transmission node to the second transmission node.

Correspondingly, on the second transmission node side, as shown in fig. 7, the transmission method includes:

step 46, receiving configuration information of air interface resources for transmitting information of the terminal, which is generated by the first transmission node according to the number of resources required for transmitting the terminal information after the first transmission node determines that the terminal needs to switch or add a service node according to the channel information reported by the terminal or the second transmission node.

Step 47, determining the air interface resource according to the configuration information of the air interface resource.

And 48, receiving the information of the terminal sent by the first transmission node on the determined air interface resource, and providing service for the terminal according to the information of the terminal after the terminal is switched from the first transmission node.

In a distributed architecture, a centralized node does not exist to perform centralized control on transmission nodes, each transmission node performs self-operation, and coordination and cooperation operation among the nodes are performed through interaction among the transmission nodes.

Specifically, under the distributed architecture, the configuration information of the air interface resource is generated by the first transmission node, and specifically, the first transmission node judges whether the terminal needs to switch the service node or add the service node according to the channel information reported by the terminal or the second transmission node; when the terminal needs to switch or add a service node, the first transmission node sends a notification message to the second transmission node, notifies the second transmission node that the service of the terminal needs to be switched or a new service node is added, and simultaneously notifies the second transmission node of resource configuration information for transmitting the information of the terminal through an air interface.

Further, the channel information collection process under the distributed architecture is as follows:

the terminal performs data transmission under the control of a service node (namely, a first transmission node) of the terminal, and in order to ensure the timeliness and smoothness of terminal movement, the service node can configure the terminal to perform measurement of surrounding adjacent nodes and perform reporting according to a trigger condition (for example, periodically reporting or reporting when the trigger condition is met); or the service node configures the terminal to send the uplink signal periodically, informs the resource configuration of the uplink signal of the terminal to surrounding neighboring nodes, measures the terminal by the neighboring nodes, and specifies a condition for measurement interaction triggering, for example, the received terminal signal power satisfies a certain threshold or the reception quality satisfies a certain threshold, and the neighboring transmission node satisfying the condition for measurement interaction triggering sends the measurement result to the source node for subsequent change/update of the terminal service node.

Further, the service node (first transmission node) of the terminal makes a determination based on the received measurement result, and initiates the procedure if the terminal service node change/update condition is satisfied. The measurement result may be a measurement from the terminal or a measurement from a neighboring node. The service node change/update of the terminal mainly means that the second transmission node meets the channel condition for the terminal service, so that the second transmission node can be added into the service node set of the terminal, and meanwhile, the first transmission node possibly does not meet the service condition any more and can quit the service node set of the terminal.

It should be noted that when there is more than one first transmission node of the terminal, that is, the terminal has a service node set before, the first transmission node here may be a head node in the set that plays a main control role, or may be any one transmission node.

A first transmission node of a terminal sends a terminal service node change/update notification to a second transmission node, and carries air interface resource allocation for transmitting terminal information; since the first transmission node is quite aware of the specific resource quantity required for information transmission of the terminal, the resource configuration here may be the configuration of multiple blocks of resources, for example, if transmission of one transmission time interval TTI is not sufficient, the resource configuration of multiple TTIs may be directly performed. The second transmission node receives the terminal service node change/update notification, can reply a confirmation to the first transmission node, and waits for the subsequent terminal information reception; a first transmission node of the terminal sends out state information, transmission information and cache data of the terminal and informs the configured air interface resources; and the second transmission node receives the state information, the transmission information and the cache data of the terminal on the configured air interface resource and then performs continuous service on the terminal. Further, since the first transmission node and the second transmission node belong to known nodes in the network, the first transmission node can perform beamforming to the second transmission node to improve transmission efficiency.

A fourth embodiment of the present invention is a transmission method of terminal information based on a distributed architecture, in which when a terminal moves between transmission nodes, a service set of a transmitting terminal is changed or updated, sending, by the first transport node, a notification of a change or update of the service set of the terminal directly to the second transport node, and carrying resource configuration information for information of the air interface transport terminal at the same time of the notification, and at the configured air interface resource position, the first transmission node sends the state information, the transmission information and the cache data of the terminal to the second transmission node, and the second transmission node can continue to serve the terminal subsequently, so that configuration signaling of an air interface is saved, state reset of the terminal, reduction of data transmission rate possibly caused and unnecessary waste of air interface retransmission resources are avoided, and network efficiency and user experience are improved.

It should be noted that, in the third embodiment or the fourth embodiment, the case that the terminal needs to switch the service node mainly includes: when a service node of a terminal is a transmission node, if the first channel quality between a first transmission node and the terminal does not meet the transmission requirement and the second channel quality between a second transmission node and the terminal meets the transmission requirement, the terminal needs to switch the service node; the cases that the terminal needs to add a service node mainly include: when the serving node of the terminal is the transmission node set, if the quality of the second channel between the second transmission node and the terminal meets the transmission requirement, the terminal needs to add the serving node.

It should be further noted that, in the third embodiment, the determining that the terminal needs to switch the service node is performed by the centralized node, that is, when the service node of the terminal is a transmission node, if the first channel quality between the first transmission node and the terminal does not meet the transmission requirement and the second channel quality between the second transmission node and the terminal meets the transmission requirement of the terminal, the centralized node determines that the terminal needs to switch the service node; when the service node of the terminal is the transmission node set, if the quality of a second channel between the second transmission node and the terminal meets the transmission requirement of the terminal, the centralized node determines that the service node needs to be added to the terminal. In the fourth embodiment, the determination that the terminal needs to switch the service node is performed by the first transmission node, that is, when the service node of the terminal is a transmission node, if the first channel quality between the first transmission node and the terminal does not satisfy the transmission requirement and the second channel quality between the second transmission node and the terminal satisfies the transmission requirement of the terminal, the first transmission node determines that the terminal needs to switch the service node; when the service node of the terminal is the transmission node set, if the quality of a second channel between the second transmission node and the terminal meets the transmission requirement of the terminal, the first transmission node determines that the service node needs to be added to the terminal.

In the embodiment of the present invention, not only the case of switching the service node by the terminal but also the case of adding a service node by the terminal is included, however, in any case, the second transmission node needs to obtain the state information, the transmission information, and the cache data of the terminal so that the second transmission node can provide the connection for the terminal, and further the terminal is unaware of the switching of the service node, thereby improving the user experience; meanwhile, the state information, the transmission information and the cache data of the terminal are obtained in advance, so that the reduction of the data transmission rate possibly caused by the state reset of the terminal can be avoided, and the network rate is improved.

Fifth embodiment

As shown in fig. 8, a fifth embodiment of the present invention provides an apparatus for transmitting terminal information, which is applied to a first transmission node, where a current serving node of a terminal is the first transmission node, and the apparatus includes:

a first determining module 51, configured to determine air interface resources used for transmitting information of the terminal with the second transmission node; wherein the second transmission node is a transmission node capable of establishing an air interface with the first transmission node having a predetermined quality;

an information sending module 52, configured to send the information of the terminal to the second transmission node on the determined air interface resource, so that after the terminal is switched from the first transmission node to the second transmission node, the second transmission node can provide a service for the terminal according to the information of the terminal.

Specifically, in the fifth embodiment of the present invention, the first determining module 51 includes:

an obtaining module, configured to obtain configuration information of air interface resources used for transmitting information of a terminal with a second transmission node;

a first determining submodule, configured to determine the air interface resource according to configuration information of the air interface resource.

Specifically, in a fifth embodiment of the present invention, the obtaining module includes:

a configuration information receiving module, configured to receive a message that the centralized node needs to switch or add a service node to the terminal, where the message is obtained by the centralized node according to the channel information reported by the terminal or the first transmission node, and the message carries configuration information of air interface resources used for transmitting information of the terminal.

Specifically, in a fifth embodiment of the present invention, the obtaining module includes:

a channel information receiving module, configured to receive channel information reported by the terminal or the second transmission node;

the triggering module is used for determining that the terminal needs to switch or add a service node according to the channel measurement information;

and the configuration information generation module is used for generating the configuration information of the air interface resource for transmitting the information of the terminal according to the quantity of the resources required by the information transmission of the terminal.

Specifically, in the fifth embodiment of the present invention, the terminal information includes state information of the terminal, transmission information of the terminal, and cache data information of the terminal.

Specifically, in a fifth embodiment of the present invention, the triggering module includes:

the first trigger submodule is used for determining that the terminal needs to switch the service node if the first channel quality between the first transmission node and the terminal does not meet the transmission requirement and the second channel quality between the second transmission node and the terminal meets the transmission requirement of the terminal when the service node of the terminal is a transmission node;

and the second triggering submodule is used for determining that the terminal needs to add the service node if the second channel quality between the second transmission node and the terminal meets the transmission requirement of the terminal when the service node of the terminal is the transmission node set.

The transmission apparatus for terminal information applied to a first transmission node according to the fifth embodiment of the present invention may perform terminal information interaction between transmission nodes with dense coverage and small coverage through an air interface, when a terminal moves between transmission nodes, a second transmission node may provide a subsequent transmission service based on a latest terminal state, and an air interface transmission delay is in a millisecond order while a conventional X2 interaction delay is in a dozen millisecond order, thereby avoiding a terminal reset and a decrease in transmission rate, and finally improving network efficiency and user experience.

It should be noted that, the terminal information transmission apparatus according to the fifth embodiment of the present invention is a transmission apparatus to which the terminal information transmission method of the first transmission node side according to the first to fourth embodiments can be applied, and all embodiments of the transmission method are applicable to the transmission apparatus and can achieve the same or similar beneficial effects.

Sixth embodiment

In order to better achieve the above object, as shown in fig. 9, a sixth embodiment of the present invention further provides a transmission apparatus for terminal information, which is applied to a first transmission node, a current service node of a terminal being the first transmission node, and the transmission apparatus includes: a processor 600; and a memory 620 connected to the processor 600 through the bus interface 610, where the memory 620 is used to store programs and data used by the processor in executing operations, and when the processor 600 calls and executes the programs and data stored in the memory 620, the following functional modules are implemented:

a first determining module, configured to determine an air interface resource used for transmitting information of a terminal with a second transmission node; wherein the second transmission node is a transmission node capable of establishing an air interface with the first transmission node having a predetermined quality;

an information sending module, configured to send the information of the terminal to the second transmission node on the determined air interface resource, so that after the terminal is switched from the first transmission node to the second transmission node, the second transmission node can provide a service for the terminal according to the information of the terminal.

It should be noted that the terminal information transmission device provided by the sixth embodiment of the present invention corresponds to the terminal information transmission device provided by the fifth embodiment, so all embodiments of the terminal information transmission device provided by the fifth embodiment are applicable to the sixth embodiment, and can achieve the same or similar beneficial effects.

Seventh embodiment

As shown in fig. 10, a seventh embodiment of the present invention provides a terminal information transmission apparatus applied to a second transmission node, including:

a second determining module 71, configured to determine air interface resources used for transmitting information of the terminal with the first transmission node; the first transmission node is a current service node of a terminal, and the second transmission node is a transmission node capable of establishing an air interface with preset quality with the first transmission node;

an information receiving module 72, configured to receive, on the determined air interface resource, the information of the terminal sent by the first transmission node, and provide a service for the terminal according to the information of the terminal after the terminal is switched from the first transmission node.

Specifically, in the seventh embodiment of the present invention, the second determining module 71 includes:

a receiving module, configured to receive configuration information of air interface resources used for transmitting information of a terminal with a first transmission node;

and the determining submodule is used for determining the air interface resources according to the configuration information of the air interface resources.

Specifically, in a seventh embodiment of the present invention, the receiving module includes:

and the first receiving submodule is used for receiving a message, which is obtained by the centralized node according to the terminal or the channel information reported by the first transmission node and needs to switch or add a service node, of the terminal, wherein the message carries configuration information of air interface resources used for transmitting the information of the terminal.

Specifically, in a seventh embodiment of the present invention, the receiving module includes:

and the second receiving submodule is used for receiving configuration information of air interface resources for transmitting the information of the terminal, which is generated according to the quantity of the resources required by the terminal information transmission after the first transmission node determines that the terminal needs to switch or add the service node according to the channel information reported by the terminal or the second transmission node.

Specifically, in the seventh embodiment of the present invention, the terminal information includes state information of the terminal, transmission information of the terminal, and cache data information of the terminal.

The transmission apparatus of terminal information applied to the second transmission node according to the seventh embodiment of the present invention may perform terminal information interaction between transmission nodes with dense coverage and small coverage through an air interface, when a terminal moves between the transmission nodes, the second transmission node may provide a subsequent transmission service based on a latest terminal state, and an air interface transmission delay is in a millisecond order while a conventional X2 interaction delay is in a dozen millisecond order, thereby avoiding a terminal reset and a decrease in transmission rate, and finally improving network efficiency and user experience.

It should be noted that the terminal information transmission apparatus according to the seventh embodiment of the present invention is a transmission apparatus to which the terminal information transmission method of the second transmission node side according to the first to fourth embodiments can be applied, and all embodiments of the transmission method are applicable to the transmission apparatus and can achieve the same or similar beneficial effects.

Eighth embodiment

In order to better achieve the above object, as shown in fig. 11, an eighth embodiment of the present invention further provides a transmission apparatus for terminal information, which is applied to a second transmission node, and includes: a processor 800; and a memory 820 connected to the processor 800 through the bus interface 810, wherein the memory 820 is used for storing programs and data used by the processor in executing operations, and when the processor 800 calls and executes the programs and data stored in the memory 820, the following functional modules are implemented:

a second determining module, configured to determine an air interface resource used for transmitting information of the terminal with the first transmission node; the first transmission node is a current service node of a terminal, and the second transmission node is a transmission node capable of establishing an air interface with preset quality with the first transmission node;

and the information receiving module is used for receiving the information of the terminal sent by the first transmission node on the determined air interface resource and providing service for the terminal according to the information of the terminal after the terminal is switched from the first transmission node.

It should be noted that the terminal information transmission apparatus provided by the eighth embodiment of the present invention corresponds to the terminal information transmission apparatus provided by the seventh embodiment, so all embodiments of the terminal information transmission apparatus provided by the seventh embodiment are applicable to the eighth embodiment, and can achieve the same or similar beneficial effects.

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

Claims (6)

1. A transmission method of terminal information is applied to a first transmission node, wherein a current service node of a terminal is the first transmission node, and the method comprises the following steps:

determining air interface resources for transmitting information of the terminal with a second transmission node; wherein the second transmission node is a transmission node capable of establishing an air interface with the first transmission node having a predetermined quality; the second transmission node comprises a neighboring node of the first transmission node or a neighboring node of the terminal;

sending the information of the terminal to the second transmission node on the determined air interface resource, so that the second transmission node can provide service for the terminal according to the information of the terminal after the terminal is switched from the first transmission node to the second transmission node;

the step of determining air interface resources for transmitting information of the terminal with the second transmission node comprises:

acquiring configuration information of air interface resources used for transmitting information of a terminal between a second transmission node and the first transmission node;

determining the air interface resource according to the configuration information of the air interface resource;

the step of obtaining configuration information of air interface resources used for transmitting information of the terminal with the second transmission node comprises:

receiving a message that a terminal needs to switch or add a service node, which is obtained by a centralized node according to the terminal or the channel information reported by the first transmission node, wherein the message carries configuration information of air interface resources used for transmitting the information of the terminal between the centralized node and the second transmission node;

or

Receiving channel information reported by the terminal or the second transmission node;

determining that the terminal needs to switch or add a service node according to the channel information;

generating configuration information of air interface resources for transmitting the information of the terminal according to the quantity of the resources required by transmitting the information of the terminal;

the information of the terminal comprises state information of the terminal, transmission information of the terminal and cache data information of the terminal.

2. The method for transmitting terminal information according to claim 1, wherein the step of determining that the terminal needs to switch or add a service node according to the channel information comprises:

when a service node of a terminal is a transmission node, if the first channel quality between a first transmission node and the terminal does not meet the transmission requirement and the second channel quality between a second transmission node and the terminal meets the transmission requirement of the terminal, determining that the terminal needs to switch the service node;

and when the service node of the terminal is the transmission node set, if the quality of a second channel between the second transmission node and the terminal meets the transmission requirement of the terminal, determining that the service node needs to be added to the terminal.

3. A transmission method of terminal information is applied to a second transmission node, and is characterized in that the method comprises the following steps:

determining air interface resources for transmitting information of a terminal with a first transmission node; the first transmission node is a current service node of a terminal, and the second transmission node is a transmission node capable of establishing an air interface with preset quality with the first transmission node; the second transmission node comprises a neighboring node of the first transmission node or a neighboring node of the terminal;

receiving the information of the terminal sent by the first transmission node on the determined air interface resource, and providing service for the terminal according to the information of the terminal after the terminal is switched from the first transmission node;

the step of determining air interface resources for transmitting information of the terminal with the first transmission node comprises:

receiving configuration information of air interface resources used for transmitting information of a terminal between a first transmission node and the first transmission node;

determining the air interface resource according to the configuration information of the air interface resource;

the step of receiving configuration information of air interface resources used for transmitting information of the terminal between the first transmission node and the second transmission node comprises:

receiving a message that a terminal needs to switch or add a service node, which is obtained by a centralized node according to channel information reported by the terminal or the first transmission node, wherein the message carries configuration information of air interface resources used for transmitting the information of the terminal;

or

Receiving configuration information of air interface resources for transmitting the information of the terminal, which is generated by a first transmission node according to the quantity of resources required by the information of the terminal after the first transmission node determines that the terminal needs to switch or add a service node according to channel information reported by the terminal or a second transmission node;

the information of the terminal comprises state information of the terminal, transmission information of the terminal and cache data information of the terminal.

4. A transmission apparatus of terminal information, applied to a first transmission node, wherein a current serving node of a terminal is the first transmission node, the apparatus comprising:

a first determining module, configured to determine an air interface resource used for transmitting information of a terminal with a second transmission node; wherein the second transmission node is a transmission node capable of establishing an air interface with the first transmission node having a predetermined quality; the second transmission node comprises a neighboring node of the first transmission node or a neighboring node of the terminal;

an information sending module, configured to send information of the terminal to the second transmission node on the determined air interface resource, so that after the terminal is switched from the first transmission node to the second transmission node, the second transmission node can provide a service for the terminal according to the information of the terminal;

the first determining module includes:

an obtaining module, configured to obtain configuration information of air interface resources used for transmitting information of a terminal with a second transmission node;

a first determining submodule, configured to determine the air interface resource according to configuration information of the air interface resource;

the acquisition module includes:

a configuration information receiving module, configured to receive a message that a centralized node needs to switch or add a service node to a terminal, where the message is obtained by the centralized node according to channel information reported by the terminal or the first transmission node, and carries configuration information of air interface resources used for transmitting information of the terminal;

or

A channel information receiving module, configured to receive channel information reported by the terminal or the second transmission node;

the triggering module is used for determining that the terminal needs to switch or add a service node according to the channel information;

a configuration information generating module, configured to generate configuration information of air interface resources for transmitting information of the terminal according to the number of resources required for transmitting the information of the terminal;

the information of the terminal comprises state information of the terminal, transmission information of the terminal and cache data information of the terminal.

5. The apparatus for transmitting terminal information according to claim 4, wherein the triggering module comprises:

the first trigger submodule is used for determining that the terminal needs to switch the service node if the first channel quality between the first transmission node and the terminal does not meet the transmission requirement and the second channel quality between the second transmission node and the terminal meets the transmission requirement of the terminal when the service node of the terminal is a transmission node;

and the second triggering submodule is used for determining that the terminal needs to add the service node if the second channel quality between the second transmission node and the terminal meets the transmission requirement of the terminal when the service node of the terminal is the transmission node set.

6. A transmission apparatus of terminal information, applied to a second transmission node, the apparatus comprising:

a second determining module, configured to determine an air interface resource used for transmitting information of the terminal with the first transmission node; the first transmission node is a current service node of a terminal, and the second transmission node is a transmission node capable of establishing an air interface with preset quality with the first transmission node;

an information receiving module, configured to receive, on the determined air interface resource, the information of the terminal sent by the first transmission node, and provide a service for the terminal according to the information of the terminal after the terminal is switched from the first transmission node; the second transmission node comprises a neighboring node of the first transmission node or a neighboring node of the terminal;

the second determining module includes:

a receiving module, configured to receive configuration information of air interface resources used for transmitting information of a terminal with a first transmission node;

a determining submodule, configured to determine the air interface resource according to configuration information of the air interface resource;

the receiving module includes:

a first receiving submodule, configured to receive a message that a centralized node needs to switch or add a service node to a terminal, where the message is obtained by the centralized node according to the terminal or channel information reported by the first transmission node, and the message carries configuration information of air interface resources used for transmitting information of the terminal;

or

The receiving module includes:

a second receiving submodule, configured to receive configuration information of air interface resources for transmitting information of a terminal, the configuration information being generated by a first transmission node according to the number of resources required for transmitting the information of the terminal after the first transmission node determines that the terminal needs to switch or add a service node according to the channel information reported by the terminal or the second transmission node;

the information of the terminal comprises state information of the terminal, transmission information of the terminal and cache data information of the terminal.