CN107371232B

CN107371232B - A kind of processing method and processing device of the transmission time interval of synchronizing information

Info

Publication number: CN107371232B
Application number: CN201610319830.XA
Authority: CN
Inventors: 赵丽; 彭莹; 李媛媛; 赵锐; 周海军; 房家奕
Original assignee: China Academy of Telecommunications Technology CATT
Current assignee: China Academy of Telecommunications Technology CATT; Datang Mobile Communications Equipment Co Ltd
Priority date: 2016-05-13
Filing date: 2016-05-13
Publication date: 2019-08-16
Anticipated expiration: 2036-05-13
Also published as: CN107371232A

Abstract

The present invention provides a kind of processing method and processing device of the transmission time interval of synchronizing information, and the processing method of node side comprises determining that the first time interval of the currently transmitted synchronizing information of first node；Second node of the priority lower than the synchronization priority of the first node is synchronized when existing in the surroundings nodes of first node, and the second node when continued presence, reduces the first time interval in the first preset time period；Then reduce transmission frequency, improve the resource utilization of system, reduces synchronization signal interference；When the synchronization priority of the surroundings nodes of first node be all larger than or equal to the first node synchronization priority, and the surroundings nodes are in the second preset time period when continued presence, increase the first time interval, then improve transmission frequency, the synchronizing information of higher precision is provided for low priority node, the synchronization accuracy of raising system accelerates synchronous convergence, improves the reliability of communication.

Description

Method and device for processing sending time interval of synchronous information

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for processing a transmission time interval of synchronization information.

Background

The vehicle-road cooperative communication system is used for performing vehicle-vehicle and vehicle-road information interaction and sharing based on technologies such as wireless communication and the like, realizing intelligent cooperation and cooperation between vehicles and infrastructure, and achieving the first purpose of optimizing and utilizing system resources, improving road traffic safety and relieving traffic jam.

Currently, in the standard research of 3GPP, the following scenarios for synchronization information transmission are defined in the LTE (long term evolution) D2D (device-to-device) communication standard, as shown in table 1:

TABLE 1 scenario for terminal to send synchronization information in LTE D2D

From table 1, it can be seen that there are 4 possible scenarios for the synchronization information transmission:

1. in coverage and in RRC connected state, the network configures UEs to transmit continuously.

2. And in an RRC connection state, the network does not configure UEs to continuously transmit, but the terminal is positioned at the edge of the cell, and the RSRP measurement value of the cell corresponding to D2D communication transmission is lower than syncTxThreshIC.

3. The terminal is in an RRC idle state in coverage, is at the edge of a cell, and meets the condition that the RSRP measurement value of the cell corresponding to D2D communication transmission is lower than syncTxThreshIC.

4. Outside the coverage, the terminal is an independent synchronization source.

Since there may be two synchronization sources in the communication of the internet of vehicles, the synchronization source may be provided by a node directly obtaining the GNSS, or the synchronization source may still be a base station. When the base station is used as a synchronization source, the synchronization transmission mechanism of LTE D2D can still be used, and 4 scenarios of synchronization information transmission still apply. However, when GNSS is used as the synchronization source, the transmission control mechanism using the base station as the synchronization source is no longer applicable.

When the node capable of directly obtaining the GNSS is taken as a synchronous source, the position of the node capable of directly obtaining the GNSS is not static like a base station, but if the node capable of directly obtaining the GNSS corresponds to a vehicle, the node can move at a high speed, and the position of the node changes rapidly; meanwhile, the node capable of directly obtaining the GNSS does not distribute synchronous resources and synchronously send information like a base station centralization type which takes a cell as a unit, but carries out interaction of synchronous information in a distributed type; if the nodes with the same priority form a synchronization cluster, the synchronization cluster may correspond to a plurality of cells of the same base station, or may correspond to a plurality of cells of different base stations, and the sending of synchronization information is performed with the cells as granularity, which is not suitable for directly obtaining the nodes of the GNSS as the synchronization source.

Disclosure of Invention

The invention aims to provide a method and a device for processing a sending time interval of synchronization information, which solve the problem that the mode of sending the synchronization information by taking a cell as granularity in the prior art is not suitable for sending the synchronization information by taking a node capable of directly obtaining a GNSS as a synchronization source.

In order to achieve the above object, an embodiment of the present invention provides a method for processing a transmission time interval of synchronization information, which is applied to a first node side, and the method includes:

determining a first time interval for a first node to currently send synchronization information;

when a second node with a synchronization priority lower than that of the first node exists in surrounding nodes of the first node and continuously exists in a first preset time period, reducing the first time interval;

and when the synchronization priority of the peripheral nodes of the first node is greater than or equal to the synchronization priority of the first node and the peripheral nodes continuously exist in a second preset time period, increasing the first time interval.

Wherein, when there is a second node having a lower synchronization priority than the first node among the surrounding nodes of the first node and the second node exists continuously within a first preset time period, the step of decreasing the first time interval includes:

reporting the position information and the synchronization priority of the first node to a base station, so that the base station can determine whether a second node with the synchronization priority lower than that of the first node exists in the peripheral nodes of the first node or not according to the position information and the synchronization priority of the first node;

receiving first configuration information returned by the base station, wherein the first configuration information is configuration information which is generated by the base station and used for reducing the first time interval after the base station determines that a second node with a synchronization priority lower than that of the first node exists in surrounding nodes of the first node and the second node continuously exists in a first preset time period;

decreasing the first time interval according to the first configuration information.

When the synchronization priority of the peripheral nodes of the first node is greater than or equal to the synchronization priority of the first node and the peripheral nodes continuously exist in a second preset time period, the step of increasing the first time interval comprises:

reporting the position information and the synchronization priority of the first node to a base station, so that the base station can determine whether the synchronization priorities of the surrounding nodes of the first node are both greater than or equal to the synchronization priority of the first node according to the position information and the synchronization priority of the first node;

receiving second configuration information returned by the base station, wherein the second configuration information is configuration information which is generated by the base station after determining that the synchronization priority of the peripheral nodes of the first node is greater than or equal to the synchronization priority of the first node and the peripheral nodes continuously exist within a second preset time period and is used for increasing the first time interval;

increasing the first time interval according to the second configuration information.

receiving the synchronization information sent by the surrounding nodes of the first node between the adjacent two times of synchronization information sending;

determining the synchronization priority of the surrounding nodes according to the synchronization information sent by the surrounding nodes;

comparing the synchronization priority of the surrounding nodes with the synchronization priority of the first node, and determining a second node with a synchronization priority lower than that of the first node;

and if the synchronous information sent by the second node continuously exists in a first preset time period, reducing the first time interval.

comparing the synchronization priority of the surrounding nodes with the synchronization priority of the first node, and determining that the synchronization priority of the surrounding nodes is greater than or equal to the synchronization priority of the first node;

and if the synchronous information sent by the surrounding nodes continuously exists in a second preset time period, increasing the first time interval.

After determining a first time interval in which the first node currently transmits the synchronization information, the processing method further includes:

acquiring pre-configured or base station configured transmission time interval configuration information corresponding to a synchronization priority, wherein the transmission time interval configuration information comprises: a maximum time interval and a minimum time interval; the sending time interval configuration information of the nodes with the same synchronization priority is the same; wherein,

the first time interval is greater than or equal to the minimum time interval and greater than or equal to the maximum time interval;

a second time interval obtained by reducing the first time interval is greater than or equal to the minimum time interval and greater than or equal to the maximum time interval, and when the first time interval is equal to the minimum time interval, the second time interval is equal to the minimum time interval;

and increasing the first time interval to obtain a third time interval which is greater than or equal to the minimum time interval and greater than or equal to the maximum time interval, wherein when the first time interval is equal to the maximum time interval, the third time interval is equal to the maximum time interval.

The embodiment of the invention also provides a processing method of the sending time interval of the synchronous information, which is applied to the base station side, and the processing method comprises the following steps:

receiving position information and synchronous priority reported by a plurality of nodes;

according to the synchronization priority and the position information of the plurality of nodes, determining that a second node with a synchronization priority lower than that of the first node exists in the surrounding nodes of the first node, generating first configuration information for reducing a first time interval of the first node for currently sending the synchronization information when the second node continuously exists in a first preset time period, and sending the first configuration information to the first node; or,

and according to the synchronization priorities and the position information of the plurality of nodes, determining that the synchronization priorities of the surrounding nodes of the first node are all larger than or equal to the synchronization priority of the first node, when the surrounding nodes continuously exist in a second preset time period, generating second configuration information for increasing a first time interval of the first node for currently sending the synchronization information, and sending the second configuration information to the first node.

After receiving the position information and the synchronization priority reported by the plurality of nodes, the processing method comprises the following steps:

determining nodes with the same synchronous priority in a preset range to form a synchronous cluster according to the synchronous priorities and the position information of the nodes;

and determining a central node positioned at the central position of the synchronous cluster and an edge node positioned at the edge position of the synchronous cluster according to the position information of the plurality of nodes in the synchronous cluster.

Wherein the step of determining that there is a second node having a synchronization priority lower than that of the first node among the peripheral nodes of the first node according to the synchronization priorities and the location information of the plurality of nodes includes:

the synchronization priority of the peripheral nodes of the central node is the same as that of the central node, and it is determined that no second node with the synchronization priority lower than that of the central node exists in the peripheral nodes of the central node;

if the synchronization priority of a first preset node in the peripheral nodes of the edge node is lower than the synchronization priority of the edge node, determining that a second node with the synchronization priority lower than the synchronization priority of the central node exists in the peripheral nodes of the edge node, and determining that the edge node is the first node.

Wherein, according to the synchronization priority position information of the plurality of nodes, the step of determining that the synchronization priorities of the surrounding nodes of the first node are all larger than or equal to the synchronization priority of the first node comprises:

the synchronization priority of the peripheral nodes of the central node is the same as that of the central node, and the synchronization priority of the peripheral nodes of the central node is determined to be equal to that of the central node;

and if the synchronous priority of the peripheral nodes of the edge node is greater than or equal to the synchronous priority of the edge node, determining the edge node as a first node.

An embodiment of the present invention further provides a device for processing a sending time interval of synchronization information, where the device is disposed at a first node side, and the device includes:

the device comprises a determining module, a sending module and a receiving module, wherein the determining module is used for determining a first time interval of the first node for sending the synchronization information currently;

the first adjusting module is used for reducing the first time interval when a second node with the synchronization priority lower than that of the first node exists in the peripheral nodes of the first node and continuously exists in a first preset time period;

and the second adjusting module is used for increasing the first time interval when the synchronization priority of the peripheral nodes of the first node is greater than or equal to the synchronization priority of the first node and the peripheral nodes continuously exist in a second preset time period.

Wherein the first adjusting module comprises:

a first reporting unit, configured to report the location information and the synchronization priority of the first node to a base station, so that the base station can determine, according to the location information and the synchronization priority of the first node, whether a second node with a synchronization priority lower than that of the first node exists in surrounding nodes of the first node;

a first receiving unit, configured to receive first configuration information returned by the base station, where the first configuration information is configuration information that is generated by the base station and that reduces the first time interval after determining that a second node with a synchronization priority lower than that of the first node exists in peripheral nodes of the first node, and the second node continuously exists within a first preset time period;

a first reducing unit, configured to reduce the first time interval according to the first configuration information.

Wherein the second adjusting module comprises:

a second reporting unit, configured to report the location information and the synchronization priority of the first node to a base station, so that the base station can determine, according to the location information and the synchronization priority of the first node, whether synchronization priorities of surrounding nodes of the first node are both greater than or equal to the synchronization priority of the first node;

a second receiving unit, configured to receive second configuration information returned by the base station, where the second configuration information is configuration information that is generated by the base station after determining that synchronization priorities of peripheral nodes of the first node are all greater than or equal to a synchronization priority of the first node, and the peripheral nodes continuously exist within a second preset time period and then increase the first time interval;

a first increasing unit, configured to increase the first time interval according to the second configuration information.

Wherein the first adjusting module comprises:

a first information receiving unit, configured to receive synchronization information sent by a peripheral node of a first node between two adjacent timings of sending the synchronization information;

a first priority determining unit, configured to determine a synchronization priority of the peripheral node according to synchronization information sent by the peripheral node;

a first comparing unit, configured to compare the synchronization priority of the peripheral node with the synchronization priority of the first node, and determine a second node having a synchronization priority lower than the synchronization priority of the first node;

a second reducing unit, configured to reduce the first time interval if the synchronization information sent by the second node continuously exists within a first preset time period.

Wherein the second adjusting module comprises:

a second information receiving unit, configured to receive synchronization information sent by a peripheral node of the first node between two adjacent timings of sending the synchronization information;

a second priority determining unit, configured to determine a synchronization priority of the peripheral node according to the synchronization information sent by the peripheral node;

a second comparing unit, configured to compare the synchronization priority of the peripheral node with the synchronization priority of the first node, and determine that the synchronization priorities of the peripheral nodes are all greater than or equal to the synchronization priority of the first node;

a second increasing unit, configured to increase the first time interval if synchronization information sent by the peripheral node continuously exists within a second preset time period.

Wherein the processing device further comprises:

an obtaining module, configured to obtain sending time interval configuration information corresponding to a synchronization priority, where the sending time interval configuration information is configured in advance or configured by a base station, and the sending time interval configuration information includes: a maximum time interval and a minimum time interval; the sending time interval configuration information of the nodes with the same synchronization priority is the same; wherein,

An embodiment of the present invention further provides a processing device for a sending time interval of synchronization information, which is disposed at a base station side, and the processing device includes:

the receiving module is used for receiving the position information and the synchronous priority reported by the nodes;

a first generating module, configured to determine, according to the synchronization priorities and the location information of the multiple nodes, that a second node with a synchronization priority lower than that of the first node exists in peripheral nodes of the first node, and when the second node continuously exists within a first preset time period, generate first configuration information that reduces a first time interval at which the first node currently sends synchronization information, and send the first configuration information to the first node; and/or the presence of a gas in the gas,

and the second generation module is used for determining that the synchronization priority of the peripheral nodes of the first node is greater than or equal to the synchronization priority of the first node according to the synchronization priority and the position information of the plurality of nodes, generating second configuration information for increasing a first time interval of currently sending the synchronization information by the first node when the peripheral nodes continuously exist in a second preset time period, and sending the second configuration information to the first node.

Wherein the processing device further comprises:

the composition module is used for determining nodes with the same synchronization priority in a preset range to form a synchronization cluster according to the synchronization priority and the position information of the plurality of nodes;

and the node determining module is used for determining a central node positioned at the central position of the synchronous cluster and an edge node positioned at the edge position of the synchronous cluster according to the position information of the plurality of nodes in the synchronous cluster.

Wherein the first generating module comprises:

a first determining unit, configured to determine that there is no second node with a synchronization priority lower than that of the central node in the peripheral nodes of the central node, where synchronization priorities of the peripheral nodes of the central node are the same as that of the central node;

a second determining unit, configured to determine that a second node with a synchronization priority lower than the synchronization priority of the central node exists in the peripheral nodes of the edge node if the synchronization priority of a first preset node in the peripheral nodes of the edge node is lower than the synchronization priority of the edge node, and determine that the edge node is the first node.

Wherein the second generating module comprises:

a third determining unit, configured to determine that synchronization priorities of nodes around the central node are equal to a synchronization priority of the central node, and to determine that the synchronization priorities of the nodes around the central node are equal to the synchronization priority of the central node;

a fourth determining unit, configured to determine that the edge node is the first node if the synchronization priorities of the nodes around the edge node are all greater than or equal to the synchronization priority of the edge node.

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

the processing method and the device for the sending time interval of the synchronization information improve the sending method of the synchronization information by taking the GNSS node and the base station as the synchronization source, and when the surrounding nodes of the nodes are of the same priority or higher priority and continue for a period of time and the time interval is increased, the sending frequency is reduced, the resource utilization rate of a system is improved, and the interference of the synchronization signal is reduced; when the nodes around the node have nodes with lower priority and last one end, the time interval is reduced, the sending frequency is increased, the synchronization information with higher precision is provided for the nodes with lower priority, the synchronization precision of the system is improved, the synchronization convergence is accelerated, and the reliability of communication is improved.

Drawings

Fig. 1 is a diagram illustrating the basic steps of a processing method for sending time intervals of synchronization information according to a first embodiment of the present invention;

fig. 2 is a diagram illustrating the basic steps of a processing method for sending time intervals of synchronization information according to a second embodiment of the present invention;

FIG. 3 is a diagram showing a first example, a second example, and a third example of a detailed application of an embodiment of the present invention;

FIG. 4 is a diagram illustrating a fourth example scenario of a specific application of an embodiment of the present invention;

fig. 5 is a block diagram of a processing apparatus for processing a transmission time interval of synchronization information according to a third embodiment of the present invention;

fig. 6 is a block diagram of a processing apparatus for processing a transmission time interval of synchronization information according to a fourth embodiment and a sixth embodiment of the present invention;

fig. 7 is a block diagram of a processing apparatus for processing a transmission time interval of synchronization information according to a fifth 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.

It should be noted that, in the vehicle-road coordination communication system provided in the embodiment of the present invention, when a node and a base station that directly obtain a GNSS are used as synchronization sources, the synchronization priority is assumed to be:

first synchronization priority:

based on base station synchronization: the terminals in the coverage are synchronous with the base station;

based on GNSS synchronization: the in-coverage UE synchronizes directly with the GNSS.

Second synchronization priority:

the covered terminal is directly synchronized with the GNSS;

based on GNSS synchronization: the partial overlay terminal is synchronized directly with the GNSS.

Third priority:

the covered terminal and the GNSS are indirectly synchronized;

based on GNSS synchronization: the partial coverage terminal is indirectly synchronized with the GNSS;

based on base station synchronization: partially covering the terminal;

an independent synchronization source outside the overlay.

In the embodiment of the invention, the first synchronization priority is higher than the second synchronization priority, and the second synchronization priority is higher than the third synchronization priority. It should be noted that the above assumption of the synchronization priority is only a preferred embodiment of the present invention, and other methods for determining the synchronization priority are also applicable to the present application and are not specifically described herein.

First embodiment

As shown in fig. 1, a first embodiment of the present invention provides a processing method for a sending time interval of synchronization information, which is applied to a first node side, and the processing method includes:

step 11, determining a first time interval for the first node to currently send the synchronization information;

and step 12, when a second node with a synchronization priority lower than that of the first node exists in the surrounding nodes of the first node and the second node continuously exists in a first preset time period, reducing the first time interval.

The corresponding situation in this step indicates that there are nodes with lower synchronization priority than the first node in the surrounding nodes, and the first node may serve as a synchronization source reference node of the second node with lower priority, at this time, the first node needs to increase the sending frequency of the synchronization information, that is, it is determined to perform the reduction processing of the first time interval after the stable first preset time period.

And step 13, when the synchronization priority of the peripheral nodes of the first node is greater than or equal to the synchronization priority of the first node and the peripheral nodes continuously exist in a second preset time period, increasing the first time interval.

The corresponding situation in this step indicates that the synchronization priority of the peripheral node is the same as the synchronization priority of the first node or the synchronization priority of the peripheral node is greater than the synchronization priority of the first node, and the first node does not need to be a synchronization reference source of any peripheral node, and at this time, the sending frequency of the synchronization information can be reduced, that is, the first time interval is increased after a stable second preset time period.

It should be noted that, in the first embodiment of the present invention, the first preset time period and the second preset time period may be equal or unequal, and are not specifically limited herein. And the first preset time period and the second preset time period are set to adapt to a high-speed moving process of the nodes, that is, in the high-speed moving process, if it is detected that a second node with a synchronization priority lower than that of the first node exists in the peripheral nodes of the first node, but the second node only exists for 100ms (the first preset time period is set to be 400ms), then it is not necessary to adjust the first time interval for the first node to send the synchronization information, and the increase of the burden of the first node due to frequent adjustment of the first time interval for the first node to send the synchronization information is avoided. A similar setting of the second preset time period is also the same, and the example is not repeated.

In the embodiment of the present invention, two methods are provided for determining how to adjust a first time interval during which a first node currently transmits synchronization information, including:

the method comprises the following steps: determining, by a base station, whether to adjust a first time interval and how to adjust the first time interval

Specifically, step 12 includes:

step 121, reporting the location information and the synchronization priority of the first node to a base station, so that the base station can determine whether a second node with a synchronization priority lower than the synchronization priority of the first node exists in the surrounding nodes of the first node according to the location information and the synchronization priority of the first node;

step 122, receiving first configuration information returned by the base station, where the first configuration information is configuration information that is generated by the base station and that reduces the first time interval after determining that a second node with a synchronization priority lower than that of the first node exists in the peripheral nodes of the first node, and the second node continuously exists within a first preset time period;

step 123, decreasing the first time interval according to the first configuration information.

Or step 13 comprises:

step 131, reporting the location information and the synchronization priority of the first node to a base station, so that the base station can determine whether the synchronization priorities of the surrounding nodes of the first node are both greater than or equal to the synchronization priority of the first node according to the location information and the synchronization priority of the first node;

step 132, receiving second configuration information returned by the base station, where the second configuration information is configuration information generated by the base station after determining that the synchronization priorities of the peripheral nodes of the first node are all greater than or equal to the synchronization priority of the first node, and the peripheral nodes continuously exist within a second preset time period and then increase the first time interval;

step 133, increasing the first time interval according to the second configuration information.

In the first method, when a first node can obtain self position information, the first node reports the self position information, synchronization priority or synchronization deviation and other information to a base station, and the base station judges whether nodes with lower synchronization priority than the first node exist in the surrounding nodes of the first node or not based on the information sent by the first node and the information sent by the surrounding nodes of the first node; if the base station judges that a node with a lower synchronization priority than the first node exists and the duration of the node meets a first preset time period, reducing a first time interval of sending synchronization information by the first node; and if the base station judges that nodes with the lower synchronization priority than the first node do not exist (namely the synchronization priorities of the nodes around the first node are all larger than or equal to the synchronization priority of the first node), and the duration of the nodes meets a second preset time period, increasing a first time interval of sending the synchronization information by the first node.

The second method comprises the following steps: determining by the first node itself whether and how to adjust the first time interval

Specifically, step 12 includes:

step 124, receiving the synchronization information sent by the surrounding nodes of the first node between the two adjacent occasions of sending the synchronization information;

step 125, determining the synchronization priority of the surrounding nodes according to the synchronization information sent by the surrounding nodes;

step 126, comparing the synchronization priority of the surrounding nodes with the synchronization priority of the first node, and determining a second node with a synchronization priority lower than that of the first node;

step 127, if the synchronization information sent by the second node continuously exists in the first preset time period, decreasing the first time interval.

Or step 13 comprises:

step 134, receiving the synchronization information sent by the surrounding nodes of the first node between two adjacent synchronization information sending occasions;

step 135, determining the synchronization priority of the surrounding nodes according to the synchronization information sent by the surrounding nodes;

step 136, comparing the synchronization priority of the surrounding nodes with the synchronization priority of the first node, and determining that the synchronization priority of the surrounding nodes is greater than or equal to the synchronization priority of the first node;

and 137, if the synchronization information sent by the surrounding nodes continuously exists in a second preset time period, increasing the first time interval.

In the second method, the first node determines the synchronization priority of the surrounding nodes according to the synchronization information sent by the surrounding nodes, compares the synchronization priority of the surrounding nodes with the synchronization priority of the first node, and determines whether the first time interval for sending the synchronization information by the first node needs to be adjusted according to the duration of the received synchronization information of the surrounding nodes.

If the first node judges that nodes with lower synchronization priority than the first node exist in the surrounding nodes and the duration of the nodes meets a first preset time period, reducing a first time interval of the first node for sending synchronization information; if the first node judges that nodes with the lower synchronization priority than the first node do not exist in the surrounding nodes (namely the synchronization priorities of the surrounding nodes of the first node are all larger than or equal to the synchronization priority of the first node), and the duration meets a second preset time period, a first time interval of sending the synchronization information by the first node is increased.

In the first embodiment of the present invention, after determining a first time interval during which the first node currently transmits synchronization information, the processing method further includes:

a second time interval obtained by reducing the first time interval is greater than or equal to the minimum time interval and greater than or equal to the maximum time interval, and when the first time interval is equal to the minimum time interval, the second time interval is equal to the minimum time interval; i.e. when the first time interval is reduced to the minimum time interval, the subsequent reduction of the first time interval is not continued.

And increasing the first time interval to obtain a third time interval which is greater than or equal to the minimum time interval and greater than or equal to the maximum time interval, wherein when the first time interval is equal to the maximum time interval, the third time interval is equal to the maximum time interval. I.e. when the first time interval increases to the maximum time interval, the subsequent increase of the first time interval is not continued.

The first embodiment of the invention perfects a method for sending synchronization information by using a GNSS node and a base station as synchronization sources, when surrounding nodes of the nodes are of the same priority or higher priority and last for a period of time, a first time interval is increased, the sending frequency is reduced, the resource utilization rate of a system is improved, and the interference of synchronization signals is reduced; when the nodes around the node have nodes with lower priority and last for a period of time, and the first time interval is reduced, the sending frequency is increased, the synchronization information with higher precision is provided for the nodes with lower priority, the synchronization precision of the system is improved, the synchronization convergence is accelerated, and the reliability of communication is improved.

Second embodiment

In order to better achieve the above object, in a first embodiment, a method is utilized, in which a base station determines whether to adjust a first time interval and how to adjust the first time interval, the present invention further provides a second embodiment, as shown in fig. 2, where the second embodiment provides a processing method for a sending time interval of synchronization information, and the processing method is applied to a base station side, and the processing method includes:

step 21, receiving position information and synchronous priority reported by a plurality of nodes;

step 22, according to the synchronization priorities and the position information of the plurality of nodes, determining that a second node with a synchronization priority lower than that of the first node exists in the surrounding nodes of the first node, when the second node continuously exists in a first preset time period, generating first configuration information for reducing a first time interval of currently sending synchronization information by the first node, and sending the first configuration information to the first node; or,

step 23, according to the synchronization priorities and the location information of the plurality of nodes, determining that the synchronization priorities of the surrounding nodes of the first node are all greater than or equal to the synchronization priority of the first node, when the surrounding nodes continuously exist within a second preset time period, generating second configuration information for increasing a first time interval at which the first node currently sends synchronization information, and sending the second configuration information to the first node.

In the second embodiment of the present invention, the base station can determine that several nodes exist within the preset location range according to the location information of the nodes, and determine whether to adjust the first time interval at which the nodes send the synchronization information according to the synchronization priority of each node and the synchronization priorities of the surrounding nodes.

Furthermore, each node reports its own geographical position, so that the base station can divide the synchronization clusters (nodes with the same synchronization priority) according to the geographical positions, and the base station can determine a center node and an edge node according to the position of each node in the synchronization clusters, and generally, for the nodes with the same priority in the centers of the synchronization clusters, the transmission frequency is considered to be reduced, and the resource utilization rate is improved; for the nodes at the edge of the synchronization cluster, because of the existence of different synchronization priorities, the nodes with high priority need to increase the sending frequency, provide synchronization information for the nodes with low priority, and accelerate synchronization convergence.

Specifically, after step 21 in the second embodiment of the present invention, the processing method includes:

step 24, determining nodes with the same synchronization priority in a preset range to form a synchronization cluster according to the synchronization priorities and the position information of the nodes;

and 25, determining a central node positioned at the central position of the synchronous cluster and an edge node positioned at the edge position of the synchronous cluster according to the position information of the plurality of nodes in the synchronous cluster.

Then, specifically, for the central node:

determining that no second node with the synchronization priority lower than that of the central node exists in the peripheral nodes of the central node because the synchronization priorities of the peripheral nodes of the central node are the same as that of the central node;

and if the synchronization priority of the peripheral nodes of the central node is the same as the synchronization priority of the central node, determining that the synchronization priority of the peripheral nodes of the central node is equal to the synchronization priority of the central node, so that the frequency of sending synchronization information by the central node needs to be reduced, that is, the first time interval of sending synchronization information by the central node needs to be increased, so as to improve the resource utilization rate and reduce the interference of synchronization signals.

For an edge node:

if the synchronization priority of a first preset node in the peripheral nodes of the edge node is lower than the synchronization priority of the edge node, determining that a second node with the synchronization priority lower than the synchronization priority of the central node exists in the peripheral nodes of the edge node, and determining that the edge node is the first node. Therefore, it is necessary to increase the frequency of sending synchronization information by the edge node, that is, to reduce the first time interval of sending synchronization information by the edge node, so as to improve the synchronization accuracy of the system, speed up synchronization convergence, and improve the reliability of communication.

And if the synchronous priority of the peripheral nodes of the edge node is greater than or equal to the synchronous priority of the edge node, determining the edge node as a first node. Therefore, it is necessary to reduce the frequency of sending the synchronization information by the edge node, that is, to increase the first time interval of sending the synchronization information by the edge node, so as to improve the resource utilization rate and reduce the interference of the synchronization signal.

The following is a specific application scenario of the processing method for sending time intervals of synchronization information provided in the first embodiment and the second embodiment of the present invention with reference to several specific examples:

let Priority2 (second synchronization Priority) have a maximum time interval p (k) max of 200ms and a minimum time interval p (k) min of 100 ms.

The first example: node A receives synchronization information of lower priority node

As shown in fig. 3, it is assumed that the interval between the node a and the node C where the synchronization Priority is Priority2 and the synchronization information is sent is 200ms, and it is assumed that the synchronization information of the node B and the node C is received within 200ms, where the synchronization information indicates that the node B and the node a have the same Priority2 and the node C has a lower Priority 3. Suppose a first predetermined time period T (k)_minusThe reception of the subsequent node a and the processing of the first time interval are shown in table 2, 400 ms.

TABLE 2 examples of synchronization information reception, synchronization information transmission interval adjustment for lower priority nodes

Note that, if the synchronization Priority of the node a is Priority1 or Priority3, the same processing method is used, and the description is not repeated here.

The second example is as follows: node A only receives the synchronous information of the nodes with the same priority and higher priority

As shown in fig. 3, it is assumed that the interval between the node a and the node C where the synchronization Priority is Priority2 and the synchronization information is sent is 100ms, and it is assumed that the synchronization information of the node B and the node C is received within 100ms, the synchronization information indicates the same Priority2 of the node B and the node a, and the node C has higher PriorityPriority 1. Assume a second preset time period T (k)_addThe reception of the subsequent node a and the processing of the first time interval are shown in table 3, 400 ms.

Table 3 example of synchronization information transmission interval adjustment receiving synchronization information of only nodes of the same priority and higher priority

The third example is as follows: the node A receives the synchronous information of the nodes with the same priority, higher priority and lower priority

As shown in fig. 3, it is assumed that the synchronization Priority of node a is Priority2, the interval for sending synchronization information is 100ms, and it is assumed that synchronization information of node B and node C is received within 100ms, where the synchronization information indicates the same Priority2 of node B and node a, node C is higher Priority1, and node D is lower Priority 3. Suppose a first predetermined time period T (k)_minus400ms, second predetermined period of time T (k)_addThe reception of the subsequent node a and the processing of the first time interval are shown in table 4, 400 ms.

Table 4 example of receiving synchronization information of same priority node, higher priority node, and lower priority node, and adjusting transmission interval of synchronization information

The fourth example: the node reports the position information and the synchronous priority and the base station controls the processing

As shown in FIG. 4, assume that the nodes A/B/C/D are the same Priority2, assume that the node E is a lower Priority3, assume a first preset time period T (k)_minus400ms, second predetermined period of time T (k)_add400 ms. The node A/B/C/D/E reports the position information and the synchronization Priority to the base station, the base station judges that the priorities of the A/B/C/D are the same according to the received information and are all priorities 2, and the node E is a low Priority 3. According to the position information, the base station judges that the priority of the node E is lower than that of the adjacent node C/D, the time lasts for T (k) minus, and the base station configures the node C/D to reduce the sending interval time; the base station judges that the priorities of the nodes A/B/C/D are the same, the situation lasts for T (k) add time, and the base station configures the nodes A/B to reduce the sending interval time. Or,

assuming node A/B/C/D is the same Priority2, assuming node E is a higher Priority1, assuming a first predetermined time period T (k)_minus400ms, second predetermined period of time T (k)_add400 ms. The node A/B/C/D/E reports the position information and the synchronization Priority to the base station, the base station judges that the priorities of the A/B/C/D are the same according to the received information and are all priorities 2, and the node E is high Priority 1. The base station judges that the priority of the node E is higher than that of the adjacent node C/D according to the position information, the time lasts for T (k) minus, and the base station configures the node E to reduce the sending interval time; the base station judges that the priorities of the nodes A/B/C/D are the same, the situation lasts for T (k) add time, and the base station configures the nodes A/B/C/D to reduce the sending interval time.

The first, second, and third examples are examples of the method two (the node determines how to adjust the first time interval for transmitting the synchronization information according to the synchronization information received by the node between two transmission times) in the first example; the fourth embodiment is an example of the first method (the base station determines how to adjust the first time interval for sending the synchronization information according to the information reported by the node) in the first embodiment and the second embodiment.

Third embodiment

As shown in fig. 5, a third embodiment of the present invention provides a processing apparatus for processing a transmission time interval of synchronization information, which is disposed on a first node side, and includes:

a determining module 51, configured to determine a first time interval during which the first node currently sends synchronization information;

a first adjusting module 52, configured to decrease the first time interval when a second node with a synchronization priority lower than that of the first node exists in surrounding nodes of the first node and the second node exists continuously within a first preset time period;

a second adjusting module 53, configured to increase the first time interval when synchronization priorities of surrounding nodes of the first node are all greater than or equal to the synchronization priority of the first node, and the surrounding nodes continuously exist within a second preset time period.

Specifically, in the third embodiment of the present invention, the first adjusting module includes:

Specifically, in the third embodiment of the present invention, the second adjusting module includes:

Specifically, in the third embodiment of the present invention, the processing apparatus further includes:

The third embodiment of the present invention improves the method for sending synchronization information using a GNSS node and a base station as synchronization sources, and when nodes around the node have the same priority or higher priority and continue for a period of time, increases the first time interval, reduces the sending frequency, improves the resource utilization rate of the system, and reduces the interference of synchronization signals; when the nodes around the node have nodes with lower priority and last one end, the first time interval is reduced, the sending frequency is increased, the high-precision synchronous information is provided for the nodes with low priority, the synchronous precision of the system is improved, the synchronous convergence is accelerated, and the reliability of communication is improved.

It should be noted that, the processing device for the sending time interval of the synchronization information provided in the third embodiment of the present invention is a processing device corresponding to the processing method for the sending time interval of the synchronization information provided in the first embodiment, and all embodiments of the processing method for the sending time interval of the synchronization information are applicable to the processing device for the sending time interval of the synchronization information, and can achieve the same or similar beneficial effects.

Fourth embodiment

In order to better achieve the above object, as shown in fig. 6, a fourth embodiment of the present invention further provides a channel transmission apparatus for a terminal side, the channel transmission apparatus including: a processor 600; a memory 620 connected to the processor 600 through a bus interface, and a transceiver 610 connected to the processor 600 through a bus interface; the memory is used for storing programs and data used by the processor in executing operations; transmitting data information or pilot frequency through the transceiver 610, and receiving a downlink control channel through the transceiver 610; when the processor calls and executes the programs and data stored in the memory, the following functional modules are implemented:

Where in fig. 6, 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 600 and memory represented by memory 620. 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 610 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 600 is responsible for managing the bus architecture and general processing, and the memory 620 may store data used by the processor 600 in performing operations.

The processor 600 is responsible for managing the bus architecture and general processing, and the memory 620 may store data used by the processor 600 in performing operations.

It should be noted that, the processing device for the sending time interval of the synchronization information provided in the fourth embodiment of the present invention is a processing device corresponding to the processing method for the sending time interval of the synchronization information provided in the first embodiment, and all embodiments of the processing method for the sending time interval of the synchronization information are applicable to the processing device for the sending time interval of the synchronization information, and can achieve the same or similar beneficial effects.

Fifth embodiment

As shown in fig. 7, a fifth embodiment of the present invention provides a processing apparatus for processing a transmission time interval of synchronization information, the processing apparatus being provided on a base station side, the processing apparatus including:

a receiving module 71, configured to receive location information and synchronization priority reported by multiple nodes;

a first generating module 72, configured to determine, according to the synchronization priorities and the location information of the multiple nodes, that a second node with a synchronization priority lower than that of the first node exists in peripheral nodes of the first node, and when the second node continuously exists within a first preset time period, generate first configuration information that reduces a first time interval at which the first node currently sends synchronization information, and send the first configuration information to the first node; and/or the presence of a gas in the gas,

a second generating module 73, configured to determine, according to the synchronization priorities and the location information of the multiple nodes, that the synchronization priorities of the peripheral nodes of the first node are greater than or equal to the synchronization priority of the first node, and when the peripheral nodes continuously exist within a second preset time period, generate second configuration information that increases a first time interval at which the first node currently sends synchronization information, and send the second configuration information to the first node.

Specifically, in a fifth embodiment of the present invention, the processing apparatus further includes:

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

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

It should be noted that, the processing device for the sending time interval of the synchronization information according to the fifth embodiment of the present invention is a processing device corresponding to the processing method for the sending time interval of the synchronization information according to the second embodiment, and all embodiments of the processing method for the sending time interval of the synchronization information are applicable to the processing device for the sending time interval of the synchronization information, and can achieve the same or similar beneficial effects.

Sixth embodiment

In order to better achieve the above object, as shown in fig. 6, a sixth embodiment of the present invention further provides a channel transmission apparatus for use on a base station side, including: a processor 600; a memory 620 connected to the processor 600 through a bus interface, and a transceiver 610 connected to the processor 600 through a bus interface; the memory is used for storing programs and data used by the processor in executing operations; transmitting data information or pilot frequency through the transceiver 610, and receiving a downlink control channel through the transceiver 610; when the processor calls and executes the programs and data stored in the memory, the following functional modules are implemented:

It should be noted that, the processing device for the sending time interval of the synchronization information provided in the sixth embodiment of the present invention is a processing device corresponding to the processing method for the sending time interval of the synchronization information provided in the second embodiment, and all embodiments of the processing method for the sending time interval of the synchronization information are applicable to the processing device for the sending time interval of the synchronization information, 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

1. A processing method for a sending time interval of synchronization information is applied to a first node side, and is characterized in that the processing method comprises the following steps:

2. The processing method as claimed in claim 1, wherein when there is a second node having a lower synchronization priority than the first node among the surrounding nodes of the first node and the second node exists continuously for a first preset time period, the step of decreasing the first time interval comprises:

3. The process of claim 1, wherein when the synchronization priorities of the surrounding nodes of the first node are all greater than or equal to the synchronization priority of the first node and the surrounding nodes are continuously present for a second preset time period, the step of increasing the first time interval comprises:

4. The processing method as claimed in claim 1, wherein when there is a second node having a lower synchronization priority than the first node among the surrounding nodes of the first node and the second node exists continuously for a first preset time period, the step of decreasing the first time interval comprises:

5. The process of claim 1, wherein when the synchronization priorities of the surrounding nodes of the first node are all greater than or equal to the synchronization priority of the first node and the surrounding nodes are continuously present for a second preset time period, the step of increasing the first time interval comprises:

6. The processing method according to any of claims 1-5, wherein after determining a first time interval during which the first node is currently transmitting synchronization information, the processing method further comprises:

7. A processing method for a sending time interval of synchronous information is applied to a base station side, and is characterized in that the processing method comprises the following steps:

8. The processing method of claim 7, wherein after receiving the location information and the synchronization priority reported by the plurality of nodes, the processing method comprises:

9. The processing method as claimed in claim 8, wherein the step of determining that there is a second node having a lower synchronization priority than the first node among the surrounding nodes of the first node based on the synchronization priorities and the location information of the plurality of nodes comprises:

10. The processing method of claim 8, wherein the step of determining that the synchronization priorities of the surrounding nodes of the first node are all greater than or equal to the synchronization priority of the first node based on the synchronization priority location information of the plurality of nodes comprises:

11. A processing apparatus for synchronizing a transmission time interval of information, provided on a first node side, the processing apparatus comprising:

12. The processing apparatus as in claim 11 wherein the first adjustment module comprises:

13. The processing apparatus as in claim 11 wherein the second adjustment module comprises:

14. The processing apparatus as in claim 11 wherein the first adjustment module comprises:

15. The processing apparatus as in claim 11 wherein the second adjustment module comprises:

16. The processing apparatus according to any one of claims 11 to 15, wherein the processing apparatus further comprises:

17. A processing apparatus for synchronizing a transmission time interval of information, provided on a base station side, the processing apparatus comprising:

18. The processing apparatus as recited in claim 17, wherein said processing apparatus further comprises:

19. The processing apparatus of claim 18, wherein the first generating module comprises:

20. The processing apparatus as defined in claim 18, wherein the second generation module comprises: