WO2015143917A1

WO2015143917A1 - Terminal, trunking system and site location method therefor

Info

Publication number: WO2015143917A1
Application number: PCT/CN2014/096061
Authority: WO
Inventors: 徐燕; 谢汉雄; 张颖哲; 索泽亮
Original assignee: 海能达通信股份有限公司
Priority date: 2014-03-26
Filing date: 2014-12-31
Publication date: 2015-10-01
Also published as: CN104581651A; CN104581651B

Abstract

Disclosed is a site location method for a trunking system. The method comprises: a terminal receives a broadcast message that is sent by a repeater and comprises adjacent site information, and stores the adjacent site information in an adjacent site list; the terminal detects whether a master repeater of a site where the terminal currently resides meets a residence condition; and if the master repeater meets the residence condition, the site where the terminal currently resides is a primary site of the terminal; otherwise, the terminal selects a primary site meeting the residence condition in the adjacent site list according to a predetermined rule. Also disclosed are a terminal and a trunking system. In the specific implementation of the present application, when the site where the terminal currently resides does not meet the residence condition, the terminal selects a primary site meeting the residence condition only from adjacent sites in the adjacent site list according to the predetermined rule, so that the mode in the prior art of performing passive roaming for all sites and waiting for a terminal test signal is avoided, less time is spent, a valid site can be rapidly located, and the time for locking a new primary site is shortened.

Description

Terminal, cluster system and method for locating same

Technical field

The present application relates to the field of communications, and in particular, to a terminal, a cluster system, and a method for locating a site.

Background technique

FIG. 1 is a conventional roaming system. When a terminal is roaming, the terminal first enters a passive roaming state, and then detects all the sites in the site list in turn, until the channel that meets the parking condition is detected, and the terminal can stay at the effective site. However, the test signal of the repeater is periodically transmitted until the repeater timer expires, and the repeater starts transmitting the test signal, and the terminal stops at the available station after detecting the valid signal. When the terminal starts roaming, it can only passively wait for the repeater to send the test signal to stay at the available site, which takes a long time.

Summary of the invention

The application provides a terminal, a cluster system and a method for locating the same.

According to a first aspect of the present application, the present application provides a method for a cluster system to locate a site, including:

Receiving, by the terminal, a broadcast message that includes the neighboring site information sent by the relay station, and saving the neighboring site information in the neighboring site list;

The terminal detects whether the main repeater of the current stop station meets a parking condition;

If the parking condition is met, the current stop site is the primary site of the terminal;

Otherwise, the terminal selects a primary site that satisfies the camping condition in the list of neighboring sites according to a predetermined rule.

According to the second aspect of the present application, the application provides a terminal, including an update module, a detection module, and a control module, where the update module is configured to receive a broadcast message including neighboring site information sent by the relay station, and the neighboring site information The detection module is configured to detect whether the primary repeater of the current stop site meets a camping condition; and the control module is configured to: when the primary repeater of the current stop site meets the camping condition, The current stop site is set as the primary site of the terminal; otherwise, the primary site that satisfies the camping condition is selected in the list of neighboring sites according to a predetermined rule.

According to a third aspect of the present application, the application provides a terminal, including a memory and processing The memory is configured to store program instructions, and the processor is configured to perform the following steps according to the program instructions:

Receiving, by the relay station, a broadcast message including neighboring site information, and saving the neighboring site information in a neighboring site list;

Detecting whether the primary repeater of the current stop site meets the camping condition;

Otherwise, a primary site that satisfies the camping condition is selected in the list of neighboring sites according to a predetermined rule.

According to a fourth aspect of the present application, the application provides a clustering system, including the foregoing terminal and a plurality of sites, the site includes a host and at least one slave, the host is configured to configure a neighboring site list for each site, and Notifying the slave, the host and the slave are configured to send a broadcast message including the neighbor station information.

Due to the adoption of the above technical solutions, the beneficial effects of the present application are as follows:

In a specific implementation manner of the present application, since the terminal does not satisfy the camping condition when the current staying site does not select the primary site that satisfies the camping condition only among the neighboring sites in the neighboring site list according to the predetermined rule, avoid using the prior art. It is necessary to passively roam all stations and wait for the signal signal mode, so it takes a short time to quickly locate an effective site and shorten the time to lock the new primary site.

DRAWINGS

Figure 1 is a schematic structural diagram of a commonly used roaming system;

2 is a schematic structural diagram of a communication system of the present application;

Figure 3 is a flow chart of the method of the present application in an embodiment;

4 is a schematic diagram of coverage of a site of the present application;

5 is a flowchart of a site update neighboring station in the present application;

6 is a flow chart of another embodiment of the method of the present application.

detailed description

The present application will be further described in detail below with reference to the accompanying drawings.

The Extended Pseudo Trunk (XPT) system protocol is a controlless distributed cluster protocol. It is a multi-site and multi-channel IP interconnection extended virtual trunking communication system, which can effectively achieve channel sharing and achieve increased channel capacity. the goal of. Ben Shen Please refer to the site, master repeater, Master and Slave as follows:

Site: A set of transfer station equipment or a set of base station equipment.

Main repeater: The repeater that stays after the terminal is turned on. All end users can specify one and only one repeater in the site as its primary repeater. An idle end user always stays in his own main transit station. Only when his main transit station is busy, will other idle cluster channels in the system be selected for communication.

Master: A host, a plurality of repeaters in a site are connected by a network cable and a network device (such as a switch) to form an IP-connected single-site system. In the single-site system connected to the network, the transit station in the site needs to be performed. In a network configuration, only one repeater can be configured as a host. The IP address of the host is usually a static IP address.

Slave: Slave, the IP address of the slave in the station is usually obtained dynamically. As the slave's transit station, it needs to register with the host. After the registration is successful, the network communication link is established between the master and the slave.

As shown in FIG. 2, in the present application, the terminals in the system are pre-assigned at a specific frequency point, that is, each terminal has a transit point in the station as its own main transit station, and the terminal is turned on after its own. The main relay station monitors and preferentially communicates on the main relay station. The main repeater of different terminals can be different, and the main repeater of the same talk group is the same.

The system periodically broadcasts system status information (including neighboring site information), which facilitates the terminal to determine the activity of all the repeaters in a site and the information of the neighboring sites.

Each frequency point in the system broadcasts system status information. The terminal can not only track the channel usage of its primary relay station, but also can select the idle cluster channel in the system for communication when its primary relay station is busy.

The terminal configures its own main transit station (Home Transfer Station) in all the sites in the neighbor list. By default, the active location function is enabled. When the terminal is powered on or switches to an extended cluster channel, an active base station signaling is automatically sent. When the received signal field strength is above a threshold threshold, the terminal locks its primary station. If the terminal does not lock the primary site at the current site, then a polite wake-up is sent to each member of the neighboring site list until a valid site is found. If a valid site is not found in the list of neighboring sites, the terminal detects all sites in the site list until it detects that the site is satisfied.

Embodiment 1:

As shown in FIG. 3, an embodiment of a method for locating a site in a cluster system of the present application includes the following steps:

Step 302: The terminal receives a broadcast message that includes the neighboring site information sent by the relay station, and saves the neighboring site information in the neighboring site list.

Step 304: The terminal detects whether the primary repeater of the current stop station meets the camping condition.

Step 306: If the parking condition is met, the current stop site is the primary site of the terminal.

Step 308: Otherwise, the terminal selects a primary site that satisfies the camping condition in the neighboring site list according to a predetermined rule.

In an embodiment, if the camping condition is met, the current stop site is the primary site of the terminal, and the terminal resides at the primary site when the signal strength of the primary repeater of the stop site is higher than the first threshold. In another implementation manner, if the camping condition is met, the current stop station is the primary station of the terminal, and the signal strength of the primary repeater station of the staying station is lower than the first threshold and higher than the second threshold; At the primary site, the neighboring site information is obtained and scanned in order from near to far. If the signal strength of the neighboring site is higher than the first threshold, the terminal regards the neighboring site as a new primary site; otherwise, the terminal camps on the current stop site.

In an implementation manner provided by the application, the received signal strength threshold includes a first threshold and a second threshold. The upper threshold is determined. When the signal strength is greater than the first threshold, the currently resident primary station is directly locked, which is smaller than the first threshold and greater than When the second threshold is used, the currently-hosted primary site is locked, and the site whose signal strength is greater than the first threshold is continuously searched in the neighboring site list, not only can the primary site satisfying the camping condition be quickly found, but also the efficiency of the search is improved. And reliability.

In an embodiment, the terminal selects the primary site that satisfies the camping condition in the neighboring site list according to the predetermined rule, including: if the signal strength of the primary repeater station of the staying site is lower than the second threshold, the terminal sequentially accesses the neighboring site list. All repeaters of the neighboring sites send activation frames until a new primary site that satisfies the park condition is locked.

In an embodiment, the neighboring site information includes the neighboring site state information, and the neighboring site information is saved in the neighboring site list, and further includes: updating the neighboring site list according to the neighboring site state information, and if the neighboring site state information is disconnected, The neighboring site disconnected from the network is deleted from the neighboring site list; if the neighboring site state information is a connection, and the neighboring site list has no state information as the connected neighboring site, the state information is added to the connected neighboring site in the vicinity In the list of sites. In this application, since the neighboring site list is deleted according to the neighboring site status information, the neighboring site disconnected from the communication network is deleted, and the original disconnection is now restored. The normal site only detects the neighboring sites whose status information is connected, which further shortens the positioning time.

The method for locating a site in the cluster system of the present application, the neighboring site information further includes GPS location information, and the neighboring site information is saved in the neighboring site list, and further includes: calculating a distance from the neighboring site according to the GPS location information of the neighboring site, according to the proximity Rearrange adjacent sites in a far order.

The method for locating a site by the cluster system of the present application, and another implementation manner thereof, further includes the following steps:

Step 310: When booting, the terminal detects whether the primary repeater of the boot stop site meets the camping condition; if the camping condition is met, the boot stop site is the primary site of the terminal; otherwise, the terminal sequentially clicks on the primary transit station of the site in the site list. The active frame is sent until a new primary site that satisfies the park condition is locked.

Step 312: If the terminal does not lock the primary site that satisfies the camping condition, then the active frame is sent to all the repeaters of the site in the site list in turn until the new primary site is locked.

Each of the sites of the present application is configured with a plurality of primary repeaters, each of which is pre-configured to a plurality of terminals.

In the extended virtual cluster system, the threshold of the positioning station can be judged by using the field strength threshold (RSSI) of the two received signals, one is the first threshold, that is, the upper limit RSSI_H of the received signal field strength, and the second threshold is The lower limit RSSI_L of the received signal field strength, RSSI_H is higher than RSSI_L. It can be recommended in two ways. For example, the first threshold value ranges from -60dB to -90dB, and the second threshold ranges from -91dB to -124dB. Or, set a first threshold threshold (-60dB to -124dB), a difference between the first threshold threshold and the second threshold threshold RSSI_Offset (6dB to 60dB), and the terminal calculates a second threshold (the first threshold minus the threshold difference) . In one embodiment, RSSI_H can be set to -80 dB and RSSI_L can be set to -108 dB. For another example, when the second threshold is -100 dB, if the received signal strength is -90 dB, higher than the second threshold and lower than the first threshold, the terminal resides at the primary site, and obtains information about the neighboring site, according to A far sequential scan, if the signal strength of the neighboring station is higher than the first threshold, the terminal regards the neighboring station as a new primary site; otherwise, the terminal camps on the current staying site. If the received signal strength is -130 dB, which is lower than the second threshold, the terminal sequentially transmits an activation frame to all the relay stations of the neighboring stations in the neighboring station list until the new primary station that satisfies the parking condition is locked.

The terminal configures one of its own main transit stations in all sites in the site list (Home Transfer) (Taiwan), the active location function is enabled by default. When the terminal is powered on or switched to an XPT channel, an active base station signaling is automatically sent. When the received signal field strength is higher than the first threshold, the received signal field strength upper limit RSSI threshold is When the value is _H, the terminal locks its primary site and stays on the primary transit station of the primary site.

When the signal strength received by the terminal is lower than the first threshold but higher than the second threshold, the terminal is still locked at the primary site, but it preferentially retries the neighboring sites acquired from the relay station broadcast information, that is, the startup site The stay timer, when the station stays out of timing, the terminal scans the acquired neighbors and preferentially scans the nearest neighbors. If the signal strength of the neighboring station is higher than the first threshold, the terminal locks to the neighboring station, and the neighboring station whose signal strength is higher than the first threshold is used as its new primary site; otherwise, the terminal returns to its own primary site and starts. The station stay timer, the terminal stays at its own home station to monitor the status information broadcasted by the system before the station stays timed out.

The terminal is pre-assigned a specific relay station frequency point at different stations, that is, the terminal is located at different stations, and has its own main relay station to preferentially monitor or communicate.

After the terminal is powered on, the function of the positioning station is automatically enabled. First, it is detected whether the signal strength of the main relay station of the station after the power-on is higher than the second threshold preset by the positioning station, such as the second threshold preset by the positioning station, and the terminal positioning is started. The site is the primary site for the end user. If the second threshold is preset, the terminal sends an activation frame to activate the primary transit station of the site where the activation is initiated. If the broadcast information of the system is received after the activation is successful and the signal strength is higher than the second threshold preset by the positioning site, The terminal where the terminal is located is the primary site of the terminal.

Each repeater in the system periodically broadcasts status information of the system and neighboring station information. The terminal in the system receives the broadcast information of the neighboring station sent by the relay station, and saves the information of the neighboring station in the neighboring station list. When the terminal moves out of the coverage of the primary site, the signal strength detection of the terminal in the neighboring site list in the neighboring site is preferentially performed according to a predetermined rule until a new primary site with a satisfactory signal strength is located.

After obtaining the neighboring site information broadcast by the system, the terminal updates its site list to the neighboring site list. When the terminal moves out of the coverage of the primary site, the primary transit station of the terminal in the neighboring site is activated in turn. If the activation is not successful or the effective site is located, the terminal activates all the transit stations in the adjacent site. Until the new station is positioned to meet the signal strength of the main station.

The neighboring site information may include neighboring site opcodes, vendor feature identities, neighboring site identities, and status information of neighboring sites. Nearby site information can also include GPS bits Set the information.

If the neighboring site status information is disconnected, the terminal user updates the neighboring site list, and the neighboring site disconnected from the network is deleted from the neighboring site list; if the neighboring site state information is connected, the terminal updates the neighboring site list, Add neighboring sites with normal network connections to the list of neighboring sites.

When the terminal does not obtain the neighboring station information broadcasted by the system, the object of the positioning site is all the sites in the system; when the terminal obtains the information of the neighboring site broadcasted by the system, the site list of the positioning site is updated to be the neighboring site list. The object that locates the site is the neighboring site of the terminal near the current site. Next, the configuration of the neighboring sites in the system and the selection of the neighboring site list will be introduced.

When a terminal in a site performs a positioning site, the distance from the neighboring site may be calculated according to the GPS location information of the neighboring site obtained first, and the neighboring sites are rearranged and located in the order from near to far.

In an embodiment, the cluster system of the present application locates a site, the broadcast message includes a neighboring site ID and neighboring site state information, and the neighboring site information is saved in the neighboring site list, and further includes: updating the location according to the neighboring site state information. A list of neighboring sites. Updating the neighboring site list according to the neighboring site status information includes: if the neighboring site status information is disconnected, the neighboring site is deleted from the site list; if the neighboring site state information is the connection, the neighboring site is retained in the neighboring site list. That is, if the neighboring site status information of a neighboring site is disconnected, when the neighboring site is already in the neighboring site list, the neighboring site is deleted from the neighboring site list. If the neighboring site status information of a neighboring site is a connection, when the neighboring site does not appear in the neighboring site list, the neighboring site is added to the neighboring site list; when the neighboring site is already in the neighboring site list, Then continue to keep the neighboring site in the list of neighboring sites.

In the prior art, all the site list members whose write frequency is configured are detected, and some sites are impossible to have signal coverage in the current area, so that unnecessary channel detection is performed, and the detection time is too long. At the same time, some business access will also be missed. The application deletes the neighboring sites disconnected from the communication network, and can only detect in the neighboring sites in the connected state, which further effectively shortens the positioning time.

The site of the present application has a plurality of repeaters, including one host (ie, Master), and the others are slaves (ie, slaves). The host configures neighbor site information for each site in the system and notifies the slave. All the repeaters in the station are periodically sent by broadcast messages when the channel is idle. Adjacent to site information, terminals within a site will only locate sites between adjacent sites obtained from a list of neighboring sites.

The coverage of different sites in the system is shown in Figure 4. The corresponding neighboring sites are listed in Table 1 below:

站点IDSite ID	邻近站点列表List of neighboring sites
站点IDSite ID	邻近站点列表List of neighboring sites	11	22
22	1，31,3	11	22
22	1，31,3	33	22
44	5，65,6	33	22
44	5，65,6	55	4，64,6
66	4，54,5	55	4，64,6

Table 1 List of neighboring sites in the system

The relay station configures the IDs of several stations adjacent to the station, and periodically broadcasts the neighboring station ID and the status of the neighboring stations.

When the terminal stops at the positioning site, it receives the neighboring site ID and its status information broadcasted by the relay station, and backs up the site. If the neighboring site network is disconnected, the terminal is deleted from the neighboring site list.

Figure 5 is a flow chart of the site updating neighboring site information. After the site slave registers successfully, the host acquires the status of the neighboring station and broadcasts the neighboring site ID and its status to the slave through the network.

In another embodiment, the repeater configures several station IDs adjacent to the station, and periodically broadcasts the neighbor station IDs and their status and GPS location information. When the terminal stays at the positioning site, the primary transit station of the current site receives the broadcasted neighboring site ID and its status and GPS location information, and backs up the network. If the neighboring site network is disconnected, the site is removed from the neighboring site list. Said to remove. The terminal calculates the distance from the neighboring station according to the GPS location information of the neighboring station. If the calculating distance from the neighboring station 5 is closer to the neighboring station 6, the terminal updates the neighboring station list, preferentially locates the station to the neighboring station 5, and then the neighboring station 6. When the terminal exceeds the coverage of the current primary site, that is, the signal strength received by the terminal is lower than the received second threshold, the terminal transmits an activation frame to the primary relay station in each adjacent site according to the obtained neighboring site list, and finds an available one. Site, if no available sites are found, then an active frame is transmitted at all the repeaters in the neighboring site. Look for available sites.

Table 2 and Table 3 show an implementation of the Protocol Data Unit (PDU) of the relay station to the terminal. The meaning of each information field is as follows:

LB (Last Block) indicates the last piece of the mark;

PF (Protect Flag) indicates a protection flag;

Adjacent Site Opcode represents the proximity station signaling opcode;

Hytera MFID is Hytera's MFID with a value equal to 0x68;

Adj_x.SiteID is a 5-bit neighboring site ID;

Adj_x.Net is used to describe the status of the neighboring station, 0 means that the network connection is abnormal, that is, the site is not available, and 1 means that the site is connected to the network, and the site is available.

GPS is used to describe whether the neighboring station carries GPS location information, 0 means no GPS location information, and 1 means carry GPS location information.

R and Reserved are reserved bits for future use.

Compressed Longitude is used to describe the longitude information compressed by neighboring stations. In this example, a total of 24 bits, including longitude, divided integer and fractional parts.

Compressed Latitude is used to describe the latitude information compressed by neighboring sites, in this case a total of 24 bits, including latitude, integer and fractional parts of the latitude.

Table 2 Proximity site information without GPS location information

Table 3 Proximity Site Information with GPS Location Information

If all the repeaters in the extended virtual cluster system do not have GPS, the relay station in the system broadcasts the neighboring station message to fill the neighboring station message using the PDU shown in Table 2, wherein the GPS bit should be filled with 0, indicating that the neighboring station does not With GPS location information.

If all the repeaters in the extended virtual cluster system have GPS, the relay station in the system broadcasts the neighboring station message to fill the neighboring station message using the PDU shown in Table 3, where the GPS bit is filled with 1, followed by the proximity. The GPS location information of the site (including compressed longitude and latitude). In this case, each frame of the neighboring site message can only carry information of one neighboring site. The GPS-equipped terminal in the system receives the message of the neighboring station, and according to the longitude and latitude of the obtained neighboring station, compares its longitude and latitude, and can calculate which neighboring station is closer to itself, thereby updating the neighboring station list, and preferentially positioning the distance. Your own nearest neighbor.

When the terminal exceeds the coverage of the current primary site, the terminal performs the following actions according to the obtained list of neighboring sites:

1. Send an activation frame to the site in the neighboring site list to find an available site to quickly lock the new primary site.

2. Prioritize the detection of the primary repeater in the list of neighboring sites, and if all fail, then detect all the repeaters in the list of neighboring sites to achieve the purpose of quickly locking the primary site and improve positioning. Site reliability.

As shown in FIG. 6, another method for the method for locating a site in a cluster system of the present application includes the following steps:

Step 602: Start. After the terminal finds the primary site, it is in the state of staying at the location site, and receives the information of the neighboring site broadcasted from the relay station. The timer is started when the information sent by the repeater is not received.

Step 604: Does the active location of the neighboring site be satisfied? The terminal determines whether the received neighbor station information satisfies the location site condition, and if yes, proceeds to step 606; otherwise, proceeds to step 608.

Step 606: Initiate active location of the neighboring site.

Step 608: The active location of the neighboring site fails, and the neighboring site is fully located.

Step 610: Switch the channel and determine whether the switching channel is successful. If yes, go to step 618, otherwise go to step 612. The switching channel is specifically switching the channel to the channel corresponding to the primary repeater of the neighboring station.

Step 612: Determine whether it is the last neighbor station channel. If yes, go to step 614. Otherwise, go to step 616.

Step 614: The active location of the neighboring site fails, and the neighboring site is fully located.

Step 616: Switch to the next neighbor station channel, and go to step 610.

Step 618: Transmit an active frame. The terminal transmits an active frame to the primary repeater of the neighboring station.

Step 620: Wait for the repeater to activate and start the timer.

Step 622: Determine whether the timer expires. If yes, go to step 612, otherwise go to step 624.

Step 624: Receive data sent by the repeater, and the activation is successful.

Step 626: The terminal stays at the new primary site.

Embodiment 2:

An embodiment of the present application includes an update module, a detection module, and a control module, where the update module is configured to receive a broadcast message including neighboring site information sent by the relay station, and save the neighbor site information in a neighboring site list; The module is configured to detect whether the primary transit station of the current stop site meets the camping condition; the control module is configured to set the current stop site as the primary site of the terminal when the primary transit station of the current stop site meets the camping condition; otherwise, according to The predetermined rule selects a primary site that satisfies the camping condition in the list of neighboring sites.

In an embodiment, the control module is further configured to cause the terminal to reside at the primary site when the signal strength of the primary repeater of the stop site is higher than the first threshold.

In another embodiment, the control module is further configured to: when the signal strength of the main repeater of the staying station is lower than the first threshold and higher than the second threshold, cause the terminal to reside at the primary site, and obtain the neighboring site information, According to the scanning from near to far, if the signal strength of the neighboring station is higher than the first threshold, the terminal regards the neighboring station as a new primary site; otherwise, the terminal camps on the current staying site.

The control module is further configured to: when the signal strength of the main repeater of the staying station is lower than the second threshold, the control module is configured to sequentially send the active frame to the primary repeater of the neighboring station in the neighboring station list until the new one is satisfied. The primary site hosting the condition.

The terminal of the application, the update module is further configured to update the neighboring site list according to the neighboring site state information, and if the neighboring site state information is disconnected, the neighboring site that is disconnected from the network is deleted from the neighboring site list; if the neighboring site state information is Connect, add the neighboring sites with the network connection back to normal in the list of neighboring sites.

The update module can also be used to calculate the distance from the neighboring sites according to the GPS location information of the neighboring sites, and rearrange the neighboring sites in order from near to far.

The detecting module is further configured to detect whether the main transit station of the power-on stop station meets the parking condition when the power is turned on; the control module is further configured to set the power-on stop station as the main station of the terminal when the parking condition is met; otherwise, The primary repeater of the site in the site list sends an activation frame until a new primary site that satisfies the park condition is locked.

If the terminal does not lock the primary site that satisfies the camping condition, the control module in turn sends an activation frame to all the repeaters of the site in the site list until the new primary site is locked.

The terminal of the present application, wherein the broadcast message includes a neighboring site ID and neighboring site state information, and the update module is further configured to update the neighboring site list according to the neighboring site state information. Specifically, when the neighboring site status information is disconnected, the neighboring site is deleted from the site list, and when the neighboring site state information is connected, the neighboring site is retained in the neighboring site list. That is, if the neighboring site status information of a neighboring site is disconnected, when the neighboring site is already in the neighboring site list, the neighboring site is deleted from the neighboring site list. If the neighboring site status information of a neighboring site is a connection, when the neighboring site does not appear in the neighboring site list, the neighboring site is added to the neighboring site list; when the neighboring site is already in the neighboring site list, Then continue to keep the neighboring site in the list of neighboring sites.

Embodiment 3:

A terminal of the present application, including an embodiment of a memory and a processor, and a memory For storing program instructions, the processor is configured to perform the following steps according to the program instructions:

Receiving a broadcast message sent by the relay station including the neighboring site information, and saving the neighboring site information in the neighboring site list;

Otherwise, the terminal selects a primary site that satisfies the camping condition in the neighboring site list according to a predetermined rule.

In one embodiment, the processor is configured to execute, according to the program instruction, “the current stop site is the primary site of the terminal if the camping condition is met”, specifically, the processor is configured to execute according to the program instruction:

When the signal strength of the main repeater of the stop site is higher than the first threshold, the terminal resides at the primary site;

And/or the signal strength of the main repeater of the stop station is lower than the first threshold and higher than the second threshold;

The terminal resides at the primary site, acquires neighboring site information, and scans in order from near to far. When the signal strength of the neighboring site is higher than the first threshold, the terminal uses the neighboring site as the new primary site.

The terminal of the present application is configured to execute, according to the program instruction, “selecting a primary site that satisfies the camping condition in a neighboring site list according to a predetermined rule”, specifically, the processor is configured to execute according to the program instruction:

If the signal strength of the primary repeater of the staying station is lower than the second threshold, the terminal sequentially sends an active frame to the primary repeater of the neighboring station in the neighboring station list until a new primary station that satisfies the camping condition is locked.

In one embodiment, the processor is further configured to perform the following steps according to the program instructions:

Updating the neighboring site list according to the neighboring site status information. If the neighboring site status information is disconnected, the neighboring site disconnected from the network is deleted from the neighboring site list; if the neighboring site status information is connected, and the neighboring site list has no state information For the connected neighbors, add the status information to the connected neighbors in the list of neighbors.

In another embodiment, the processor is further configured to perform the following steps according to the program instructions:

According to the GPS location information of the neighboring stations, the distance from the neighboring sites is calculated, and the neighboring sites are rearranged in order from near to far.

In an embodiment, the processor is further configured to perform the following steps according to the program instructions. Step:

When the power is turned on, the terminal detects whether the main repeater of the power-on stop station meets the parking condition;

If the parking condition is met, the power-on stop site is the primary site of the terminal;

Otherwise, the terminal in turn sends an activation frame to the primary repeater of the site in the site list until a new primary site that satisfies the park condition is locked.

Embodiment 4:

An embodiment of the cluster system of the present application includes a plurality of terminals and a plurality of sites. Each site includes a host and at least one slave. The host is configured to configure a neighbor list for each site and notify the slaves that the host and the slave are used to send broadcast messages containing information about the neighbors. The terminal includes an update module, a detection module, and a control module, and the update module is configured to receive the broadcast message sent by the host and the slave, and save the neighboring site information in the neighboring site list; the detecting module is configured to detect whether the primary transit station of the current stop site is satisfied. a parking condition; the control module is configured to set the current stop site as the primary site of the terminal when the primary transit station of the current stop site meets the camping condition; otherwise, select a camping condition in the neighboring site list according to a predetermined rule. Primary site.

The control module is further configured to cause the terminal to reside at the primary site when the signal strength of the primary repeater of the stop site is above a first threshold.

The control module is further configured to: when the signal strength of the main repeater of the stop station is lower than the first threshold and higher than the second threshold, cause the terminal to reside at the primary site, and obtain information about the neighboring site, according to the near to far Sequential scanning, if the signal strength of the neighboring station is higher than the first threshold, the terminal regards the neighboring station as a new primary site; otherwise, the terminal camps on the current staying site.

The control module is further configured to, when the signal strength of the primary repeater of the staying station is lower than the second threshold, sequentially send an active frame to the primary repeater of the neighboring station in the neighboring station list until the new camping condition is met. Primary site.

The update module is further configured to update the neighboring site list according to the neighboring site state information, and if the neighboring site state information is disconnected, the neighboring site that is disconnected from the network is deleted from the neighboring site list; if the neighboring site state information is connected, the network is connected Adding a neighboring site with normal connectivity increases in the list of neighboring sites.

The update module is further configured to calculate a distance from the neighboring station according to the neighboring station GPS location information, and rearrange the neighboring sites in order from near to far.

The terminal of the present application, wherein the broadcast message includes a neighboring site ID and neighboring site state information, and the update module is further configured to be more adjacent to the site list according to the neighboring site state information. Specifically, when the neighboring site status information is disconnected, the neighboring site is deleted from the site list, and when the neighboring site state information is connected, the neighboring site is retained in the neighboring site list. That is, if the neighboring site status information of a neighboring site is disconnected, when the neighboring site is already in the neighboring site column In the table, the neighbor is removed from the list of neighbors. If the neighboring site status information of a neighboring site is a connection, when the neighboring site does not appear in the neighboring site list, the neighboring site is added to the neighboring site list; when the neighboring site is already in the neighboring site list, Then continue to keep the neighboring site in the list of neighboring sites.

In the cluster system of the present application, the control module can also be used to directly locate all the repeaters of the neighboring stations in the neighboring site list in turn, until the new primary site is locked.

Here are a few examples to illustrate:

A multi-site communication system has stations A, B, C, D, E, F, G, and H, where B, C, D, and E are neighboring sites of A. Adjacent sites G, H of F.

1. Priority retrace of neighboring sites

When the terminal stays at the A site, according to the neighboring site message broadcasted by the relay station in the site A, the neighboring sites are obtained as B, C, D, and E, and the terminal calculates the GPS location information according to the acquired neighboring site, and the distance is near. If the nearest neighbors are C, D, B, and E, then update their neighbor list to {C, D, B, E}.

When the signal strength received by the terminal at the A site is lower than the first threshold but higher than the second threshold, the terminal locks to the A site and starts the station stay timer T_SiteStay. The terminal stays at the A before the station stays timeout. Site. When the station staying timer T_SiteStay times out, the terminal switches to the neighboring station C closest to itself to detect the signal strength of the neighboring station C, such as when the terminal has no carrier at the neighboring station C or the signal strength received at the neighboring station C is lower than the first threshold. The terminal immediately returns to its home station A, and starts the station stay timer T_SiteStay again. If the station stay timer T_SiteStay times out, the terminal will switch to the nearest neighbor station D for detection, and the detection mode is the same as the neighboring station C. When the neighboring station D detects that the received signal strength is higher than the first threshold, the terminal will stay at the neighboring site D and use the neighboring site D as its new primary site.

The order in which the terminal preferentially retries the neighboring sites is: A->C->A->D->A->B->A->E, of course, it is also possible to only retrace the two nearest neighbors, that is, back The order of sweeping neighbors becomes: A->C->A->D.

2. An example of active positioning with only two neighboring sites

When the terminal user stays at the F site, it receives the broadcast message from the site F including the neighboring site information, and records the status of the neighboring sites G and H. When the terminal exceeds the coverage of the F site, the neighboring sites G and H are connected. On the network, the active location of the neighboring site will be initiated. The new neighboring site list is G and H, and the terminal transmits the active frame to the G and H sites respectively. When the activation site G or H is successful, the terminal stays at the new primary site G or H. Otherwise, the active location of the neighboring site fails. If any of the neighboring sites G and H are not connected to the network, the active location of the neighboring site cannot be initiated.

3. Examples of locating sites between adjacent sites with normal network connections

When the terminal user stays at the A site, it receives the broadcast message including the neighbor site information from the site A, and records the status of the neighboring sites B, C, D, and E. When the terminal is out of range, the neighboring sites B, C, and D Connected to the network, the E site is not connected to the network, and the new neighboring site list is B, C, and D. After the active location of the neighboring site is turned on, the terminal transmits an activation frame to B, C, and D respectively. If one of the transit stations is activated, The terminal stays to the new primary site. Otherwise, the active location of the neighboring site fails.

4. Examples of comprehensive positioning of adjacent sites

The shared channel members of station 1 are {F11, F12, F13}, the shared channel members of station 2 are {F21, F22, F23}, and the shared channel members of station 3 are {F31, F32, F33}. The neighbors of Site 1 are Site 2 and Site 3. The main repeater of the terminal at different stations is F11, F21, and F31, and the order of the search station for the positioning station is:

F11->F21->F31 ->F11->F12->F13->F21->F22->F23->F31->F32->F33

|-Proactively locate nearby sites-||---------------------------Complete positioning of nearby sites---------- ---------------------|

In an embodiment, when the terminal moves out of the coverage of the current site, it first locates the primary transit station of the neighboring station, and if it detects that the available relay station is not activated once, the second time performs comprehensive positioning of the neighboring sites, and activates the neighbors in order. The shared channel member of each neighboring site in the site list, as long as an available transit station is found, the terminal is locked to this site. In another embodiment, the second pass may actively locate other repeaters in the neighboring station other than the main repeater. In yet another embodiment, when the terminal moves out of the coverage of the current site, all of the transit stations of the neighboring stations can be fully located.

Such a scheme first locates the main transit station of the adjacent station to improve the efficiency of the positioning station, and can quickly find the available relay station when the terminal and the main transit station of the adjacent station lose contact, thereby ensuring the reliability of the positioning station.

The above content is a further detailed description of the present application in conjunction with the specific embodiments, and the specific implementation of the present application is not limited to the description. For the ordinary person skilled in the art to which the present invention pertains, a number of simple deductions or substitutions may be made without departing from the spirit of the present application.

Claims

A method for locating a site by a cluster system, comprising:

Receiving, by the terminal, a broadcast message that includes the neighboring site information sent by the relay station, and saving the neighboring site information in the neighboring site list;

The terminal detects whether the main repeater of the current stop station meets a parking condition;

If the parking condition is met, the current stop site is the primary site of the terminal;

Otherwise, the terminal selects a primary site that satisfies the camping condition in the list of neighboring sites according to a predetermined rule.
The method for locating a site in a cluster system according to claim 1, wherein if the camping condition is met, the current stop site is a primary site of the terminal, including:

When the signal strength of the main repeater of the staying station is higher than the first threshold, the terminal resides at the primary site;

And/or the signal strength of the main repeater of the stop station is lower than the first threshold and higher than the second threshold;

The terminal resides at the primary site, acquires neighboring site information, and scans in order from near to far. When the signal strength of a neighboring site is higher than a first threshold, the terminal uses the neighboring site as a new master. Site.
The method for locating a site in a cluster system according to claim 1 or 2, wherein the terminal selects a primary site that satisfies the camping condition in the list of neighboring sites according to a predetermined rule, including:

If the signal strength of the primary repeater of the staying station is lower than the second threshold, the terminal sequentially sends an active frame to the primary repeater of the neighboring station in the neighboring station list until the new camping condition is met. The main site.
The method for locating a site in a cluster system according to claim 1 or 2, wherein the neighboring site information includes neighboring site state information, and the storing the neighboring site information in a neighboring site list further includes:

Updating the neighboring site list according to the neighboring site state information, if the neighboring site state information is disconnected, deleting the network disconnected neighboring site from the neighboring site list; if the neighboring site state information is connected, If the status information in the neighbor list is not the connected neighbor, the status information is added to the neighbor list in the neighbor list.
A method of locating a site by a cluster system according to claim 5, wherein The neighboring site information further includes GPS location information, where the saving the neighboring site information in the neighboring site list, further includes:

The distance from the neighboring station is calculated according to the GPS location information of the neighboring station, and the neighboring stations are rearranged in order from near to far.
The method for locating a site in a cluster system according to any one of claims 1 to 5, further comprising:

When the device is powered on, the terminal detects whether the main repeater of the power-on stop station meets the parking condition;

If the parking condition is met, the power-on stop site is the primary site of the terminal;

Otherwise, the terminal sequentially sends an activation frame to the primary relay station of the site in the site list until a new primary site that satisfies the parking condition is locked.
A terminal, comprising: an update module, a detection module, and a control module,

The update module is configured to receive a broadcast message that includes the neighboring site information sent by the relay station, and save the neighboring site information in a neighboring site list;

The detecting module is configured to detect whether the main repeating station of the current stop station meets a parking condition;

The control module is configured to set the current stop station as the primary site of the terminal when the primary transit station of the current stop site meets the camping condition; otherwise, select the satisfied in the neighboring site list according to a predetermined rule. The primary site of the park condition.
A terminal, comprising: a memory for storing program instructions, and a processor for performing the following steps according to the program instructions:

Receiving, by the relay station, a broadcast message including neighboring site information, and saving the neighboring site information in a neighboring site list;

Detecting whether the primary repeater of the current stop site meets the camping condition;

If the parking condition is met, the current stop site is the primary site of the terminal;

Otherwise, a primary site that satisfies the camping condition is selected in the list of neighboring sites according to a predetermined rule.
The terminal according to claim 8, wherein the processor is configured to execute, according to the program instruction, "if the camping condition is met, the current staying station is a primary station of the terminal", specifically The processor is configured to execute according to the program instructions:

When the signal strength of the main repeater of the staying station is higher than the first threshold, the terminal resides at the primary site;

And/or the signal strength of the main repeater of the stop station is lower than the first threshold and higher than the second threshold;

The terminal resides at the primary site, acquires neighboring site information, and scans in order from near to far. When the signal strength of a neighboring site is higher than a first threshold, the terminal uses the neighboring site as a new master. Site.
The terminal according to claim 8 or 9, wherein the processor is configured to perform, according to the program instruction, "selecting a primary site that satisfies the camping condition in the neighboring site list according to a predetermined rule", specifically Used by the processor to execute according to the program instructions:

If the signal strength of the primary repeater of the staying station is lower than the second threshold, the terminal sequentially sends an active frame to the primary repeater of the neighboring station in the neighboring station list until the new camping condition is met. The main site.
The terminal according to claim 8 or 9, wherein the processor is further configured to perform the following steps according to the program instruction:

Updating the neighboring site list according to the neighboring site state information, if the neighboring site state information is disconnected, deleting the network disconnected neighboring site from the neighboring site list; if the neighboring site state information is connected, If the status information in the neighbor list is not the connected neighbor, the status information is added to the neighbor list in the neighbor list.
The terminal according to claim 11, wherein the processor is further configured to perform the following steps according to the program instruction:

The distance from the neighboring station is calculated according to the GPS location information of the neighboring station, and the neighboring stations are rearranged in order from near to far.
The terminal according to any one of claims 8 to 12, wherein the processor is further configured to perform the following steps according to the program instruction:

When the power is turned on, it is detected whether the main repeater of the power-on stop station satisfies the parking condition;

If the parking condition is met, the power-on stop site is the primary site of the terminal;

Otherwise, the terminal sequentially sends an activation frame to the primary relay station of the site in the site list until a new primary site that satisfies the parking condition is locked.
A cluster system, comprising: a plurality of sites and a terminal according to any one of claims 7-13,

The site includes a host and at least one slave, the host is configured to configure a neighbor list for each site, and notify the slave, the host and the slave are configured to send information including the neighboring site Broadcast message.