WO2006037266A1 - A method for identifing the receiver’s state and location during group communication - Google Patents
A method for identifing the receiver’s state and location during group communication Download PDFInfo
- Publication number
- WO2006037266A1 WO2006037266A1 PCT/CN2005/001588 CN2005001588W WO2006037266A1 WO 2006037266 A1 WO2006037266 A1 WO 2006037266A1 CN 2005001588 W CN2005001588 W CN 2005001588W WO 2006037266 A1 WO2006037266 A1 WO 2006037266A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- listener
- mobile terminal
- network side
- status information
- state
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
- H04W4/10—Push-to-Talk [PTT] or Push-On-Call services
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/40—Connection management for selective distribution or broadcast
- H04W76/45—Connection management for selective distribution or broadcast for Push-to-Talk [PTT] or Push-to-Talk over cellular [PoC] services
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/30—Resource management for broadcast services
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/22—Processing or transfer of terminal data, e.g. status or physical capabilities
- H04W8/24—Transfer of terminal data
Definitions
- the present invention relates to the field of network communication technologies, and in particular, to a method for identifying a listener state and a location in a cluster communication process.
- GT800 cluster communication realizes group services through channel sharing, which greatly improves the utilization of network resources and ensures the excellent characteristics of cluster communication.
- Thousands of users' GT800 group services can be realized by sharing a traffic channel, that is, the call originator competes for the uplink channel, and the listener shares the downlink channel.
- GT800 cluster communication attracts more and more cluster users with its advantages of fast access, security and reliability.
- the listener ie, the mobile terminal
- the current state network side of each listener in the cluster is also unknown, so that the network The side does not know which listeners are in the receiver receiving state, can normally receive the delivered voice, which listeners are not in the position, and are not in the receiving state, that is, the voices that are delivered cannot be normally received.
- the network side usually needs to know whether the group call message sent by the group can be received by the concerned users. Therefore, the network side must know whether the current listener is in the listener receiving state, but there is no One method enables the network side to know the status of each listener in the cluster communication.
- the object of the present invention is to provide a method for identifying a listener's state and location during a cluster communication process, so that the network side in the cluster communication can reach the state and position of the listener, so that Control and manage it on the network side.
- the invention provides a method for realizing listener state recognition in a cluster communication process, which comprises:
- the mobile terminal as the listener in the cluster communication sends the listener state information to the network side through the idle uplink channel;
- the network side After receiving the listener status information, the network side enters according to the listener status information.
- the listener status recognition of the corresponding mobile terminal is performed.
- the network side broadcasts a listener status information report notification to all mobile terminals in the group;
- the mobile terminal After receiving the notification, the mobile terminal sends the listener state information to the network side through the idle uplink channel.
- the notification of the listener status information report includes:
- the mobile terminal After receiving the notification, the mobile terminal determines the time of the listener state information on the mobile terminal according to the current message frame number, the mobile terminal serial number that needs to report the listener state information, and the serial number saved by the mobile terminal. And at the determined time to the network side "3 ⁇ 4 listener status information.
- the mobile terminal determines the time for reporting the listener state information according to the following steps: modulo the current message frame number and the total number of cluster group users, and subtract the current mobile terminal number from the currently reported listener state information, and obtain the value S. ;
- the value S is subtracted from the value S to obtain a value N.
- the value N is determined to be the mobile.
- the mobile terminal reports the status information by transmitting the access burst signal ACCESS BURST on the uplink of the group call channel, and the access reason value in the ACCESS BURST is filled with the specific listener status information.
- the network side performs the state recognition of the corresponding listener according to the state information according to the following steps: After receiving the ACCESS BURST, the network side base station calculates, according to the current frame number, the mobile terminal serial number that sends the signal, and notifies the mobile switching center. MSC;
- the mobile switching center MSOf determines the MSISDN of the mobile terminal transmitting the signal according to the mobile terminal serial number and the stored mobile terminal serial number and the mobile station international ISDN number MSISDN correspondence table; The mobile terminal whose number is MSISDN is determined to be in the listener receiving state.
- the method further includes:
- the mobile terminal that does not receive the listener status information on the network side within the set time it is determined that the mobile terminal that is supposed to be in the absence of the user is not in the listener reception state.
- the method further includes:
- the mobile terminal When the network side receives the reported access request conflict or the ACCESS BURST of the non-listener status information through the uplink channel, the mobile terminal sends a message to stop the broadcaster status information to the mobile terminal, and saves the last user.
- the serial number of the mobile terminal of the status information When the network side receives the reported access request conflict or the ACCESS BURST of the non-listener status information through the uplink channel, the mobile terminal sends a message to stop the broadcaster status information to the mobile terminal, and saves the last user. The serial number of the mobile terminal of the status information.
- the method further includes:
- the network side When the uplink channel is re-idle, the network side sends a message to the mobile terminal to start the listener state information at the current time.
- the message carries the sequence number of the mobile terminal that needs to report the listener state information, and performs step A.
- the time interval between the current time and the message for stopping the reporting of the listener's state information should be not less than twice the maximum retransmission interval of the mobile terminal.
- the mobile terminal transmits the listener state information to the network side through the idle uplink channel when the uplink channel is idle and there is no interference. Specifically, the network side determines whether there is interference on the uplink channel according to the following steps: The network side detects the noise access level when the uplink channel is idle in real time, and if the noise access level is lower than the set threshold P ⁇ , confirms There is no interference on the upstream channel.
- the method further includes:
- the base station performs filtering processing on the repeatedly reported listener state information.
- the invention also provides a method for realizing the location recognition of a listener in a cluster communication process, which comprises:
- the network side can obtain the timing advance TA value by decoding the received listener state information, and determine the listener's location information according to the distance value corresponding to each TA and the cell identifier CELLID.
- the mobile terminal as a cluster communication listener can send a message for reporting the state information of the listener when the uplink channel is idle, and the network side can know the listeners according to the message. Status and location, so that the network side can easily understand which group call messages are sent, which listeners can receive, which listeners cannot receive, and corresponding The location information of the listener, etc., facilitates the network side to control and manage each user in the cluster.
- it is only necessary to add a function of identifying a message for transmitting or stopping the transmission of the listener state information to the mobile terminal to satisfy the need.
- it is also fully compatible with mobile terminals that do not have the corresponding functions.
- Figure 1 is a flow chart of the method of the present invention.
- the core 'G of the present invention is a message that each cluster user (mobile terminal) needs to send the listener's 4 ⁇ state information to the network side in the cluster communication, and the network side can determine the status according to the message reported by the cluster user. , that is, whether the listener receives the status.
- Step 11 The serial numbers of the mobile terminals in the corresponding clusters (groups) are respectively stored in the HLR (Home Location Register) of the mobile terminal and the network side, so that the mobile terminal and the network side can mutually recognize the sent message;
- HLR Home Location Register
- the premise of the implementation of the present invention is that under the condition of the GT800 cluster service, the SIM (Customer Identification Module) card of the mobile phone (mobile terminal) and the HLR of the network side both store the mobile terminal in the group call (cluster). Serial number, the serial number of the mobile terminal in each group (cluster) is unique. By determining the serial number of the mobile terminal in each group, the MSISDN (International Mobile Station ISDN Number) corresponding to it can be determined at the MSC (Mobile Switching Center). ).
- MSISDN International Mobile Station ISDN Number
- Step 12 When the network side, for example, the base station on the network side determines that the uplink channel is idle with the mobile terminal as the listener in the cluster, the base station downlink channel of the current cell is sent to the mobile terminal to start the listener; Notification message of status information;
- Upstream channel idle is defined as the upstream channel is not occupied. Generally, in the non-speaker cell, the uplink channel is always idle. In the speaker cell, the uplink channel is occupied by the speaker. Only when the speaker ends the speech, the uplink channel is released, and the uplink channel is idle.
- the base station in the network When the base station in the network sends the LISTENER_INFORMATION_REPORT message to the mobile terminal in the group when the uplink channel of the local area is idle, the base station activates the listener on the FACCH (fast associated control channel).
- the message carries a mobile terminal that needs to report the status information of the listener
- the serial number for example, currently needs to report the listener status information from the mobile terminal with the group number X; usually, after the group call cluster is established, the uplink and downlink channels are always connected, and there is no speaker or non-speaker community or speaker in the group call.
- a speaker cell that occupies a dedicated channel instead of a group call channel, and the group call uplink channel is in an idle state, and can be used to report whether the user is online or not.
- the mobile terminal transmits the listener status information to the network side by responding to the network page response on the network side.
- the mobile terminal actively sends the status information to the network side. Specifically, the mobile terminal applies for the channel to the network side and sends the listener status information to the network end side through the channel allocated by the network side.
- Step 13 When receiving the notification message of the start of the listener status information sent by the base station, the mobile terminal that is the listener in the cluster obtains the uplink channel that communicates with the network side, and can report the state information to the network side. The time at which the JH determines the state information of the local party according to the content and the frame number carried in the notification message of the received message state of the listener;
- the specific manner of determining the frame number of the listener state information on the local end is as follows:
- the total number of users in the group that is, the number of all users included in the cluster is SUM;
- the base station may report the listener status information according to the frame number and the sequence number of the mobile terminal;
- the frame number in the mobile communication system is defined as follows:
- the mobile terminal obtains the sequence number of the mobile terminal that reports the listener status information according to the needs received from the LISTENER_INFORMATION_REPORT, and obtains the time that the mobile terminal needs to report by the following algorithm:
- the current frame number is 20, and the total number of group users is 12.
- the status information of the listener needs to be reported from the user whose serial number is 5,
- the mobile terminal usually sends an access signal through the uplink of the group call channel.
- the BURST performs the reporting of the listener state information, and the access cause value of the access burst signal is filled in as the listener state information
- Step 14 The network side determines whether the listener status information reported by each listener in the cluster is received within the set time period. If yes, go to step 15. Otherwise, go to step 16.
- the base station determines the user's presence status through the received ACCESS BURST, that is, whether the listener is in the receiver state. If the listener status information is not received occasionally, the user is not immediately determined to be absent, but is determined by a filtering mechanism.
- the filtering mechanism is as follows: In a reporting period, the user's reported listener status is received. If the information is exceeded, the user counter is incremented by 2. If the upper limit value is exceeded, the upper limit value is maintained. If not, the counter is decremented by 1. If the lower limit value is exceeded, the lower limit value is maintained.
- the intermediate value of the upper and lower limits (generally 0) is used as a scale to determine whether the listener is online; if it is lower than the scale, it is judged to be absent. If it is higher than the scale, it is judged to be in place; thus effectively avoiding mistakes # ⁇ The occurrence of the misplaced condition, for example, the upper and lower limits are 10 and -10 respectively, and the current counter value is -10, if still in the next cycle If the listener status information is received, the counter value remains at -10. If it is received, it is modified to -8, but it is still determined that the listener is not in position until the counter address is greater than 0, and the listener is determined to be in place;
- Step 15 The network side receives the listener status information sent by the mobile terminal, and determines that the mobile terminal is in the listener receiving state;
- the base station on the network side solves the ACCESS BURST, according to the current frame number of the base station, determines the sequence number of the mobile terminal that sends the access burst signal, and the base station notifies the sequence
- the mobile switching center MSC determines the MSISDN of the mobile terminal transmitting the signal according to the mobile terminal number, and the stored mobile terminal serial number and the mobile station international ISDN number MSISDN correspondence table, and The hyperactive terminal whose number is MSISDN is set to be in the listener receiving state.
- Step 16 Determine that the corresponding mobile terminal is not in the listener reception state.
- the network side can accurately know whether each mobile terminal in the cluster can receive the group call information that is delivered.
- other burst signals may also be sent to the network side through the corresponding uplink channel in the network, and PTT (keystroke talk) access occurs in the above line;
- PTT keystroke talk
- the present invention provides a corresponding solution, and the following solution occurs by taking the PTT access as an example. Note that the processing for other burst signals is similar to:
- the listener status information stop message LISTENER_INFORMATION is sent to each mobile terminal in the cluster through the FACCH. — OVER, suspending the status information of the listener on each mobile terminal, and storing the sequence number of the last reported mobile terminal status information in the base station, in order to re-report the listener status after the uplink channel is re-idle (the end of the user call)
- the information, the time interval between the sending of the stop message and the sending of the re-sequentially reported message is not less than twice the maximum retransmission interval of the mobile phone; thus, the user-initiated PTT access can be successfully accessed; After receiving the stop message, the mobile terminal stops reporting the listener status information.
- the corresponding user may initiate a PTT access burst signal access, and the base station receives the uplink channel busy message UPLINK_BUS. ⁇ ; If no user initiates PTT access at this time, within a period of time (base station timer), the uplink channel is idle, and no new PTT access burst signal is accessed. At this time, if the cluster (group call) If yes, the base station can send a message LISTENER_INFORMATION_REPORT to start the report of the listener status information on the UM (Inter-User and Base Station) interface, and each mobile terminal in the group call re-reports the listener status information.
- the base station can send a message LISTENER_INFORMATION_REPORT to start the report of the listener status information on the UM (Inter-User and Base Station) interface, and each mobile terminal in the group call re-reports the listener status information.
- the uplink interference may also cause an uplink decoding error.
- the base station cannot distinguish between interference or user-initiated PTT access. Therefore, the processing of the base station still adopts the processing manner of the PTT access procedure described above. Since the interference may result in incorrect reporting of the listener status information, this is because the ACCESS BURST byte is small, and interference may be decoded into status information, resulting in false reporting.
- the noise reception level when no access is detected may be detected in real time on the base station side, and if the noise reception level is below a certain threshold value, the uplink channel is confirmed.
- the process of reporting the status information of the listener may be initiated, and the LISTENER_INFORMATION-REPORT message is sent to the mobile terminal; otherwise, the interference in the uplink channel is determined, and the process of reporting the status information of the listener is not initiated, thus avoiding The above-mentioned false reporting due to interference has occurred.
- the present invention can also extend the listener positioning function.
- TA time advance
- One TA corresponds to a distance of 550 meters.
- CELLID cell ID indication + TA positioning method
- the position of the listener can be initially located.
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Mobile Radio Communication Systems (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT05791915T ATE457118T1 (de) | 2004-10-09 | 2005-09-28 | Verfahren zum identifizieren des zustands und orts des empfängers während der gruppenkommunikation |
DE602005019250T DE602005019250D1 (de) | 2004-10-09 | 2005-09-28 | Verfahren zum identifizieren des zustands und orts des empfängers während der gruppenkommunikation |
EP05791915A EP1811792B1 (en) | 2004-10-09 | 2005-09-28 | A method for identifing the receiver's state and location during group communication |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN200410081079.1 | 2004-10-09 | ||
CNB2004100810791A CN100415013C (zh) | 2004-10-09 | 2004-10-09 | 集群通讯过程中听者状态及位置识别的实现方法 |
Publications (1)
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WO2006037266A1 true WO2006037266A1 (en) | 2006-04-13 |
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Application Number | Title | Priority Date | Filing Date |
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PCT/CN2005/001588 WO2006037266A1 (en) | 2004-10-09 | 2005-09-28 | A method for identifing the receiver’s state and location during group communication |
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Country | Link |
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EP (1) | EP1811792B1 (zh) |
CN (1) | CN100415013C (zh) |
AT (1) | ATE457118T1 (zh) |
DE (1) | DE602005019250D1 (zh) |
WO (1) | WO2006037266A1 (zh) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2018213968A1 (zh) * | 2017-05-22 | 2018-11-29 | 哈尔滨海能达科技有限公司 | 一种位置信息上报方法及移动台 |
CN116017391A (zh) * | 2022-12-13 | 2023-04-25 | 南京大鱼半导体有限公司 | 一种在线设备检测方法、设备及存储介质 |
Families Citing this family (4)
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CN103024683B (zh) * | 2011-09-23 | 2016-03-23 | 北京信威通信技术股份有限公司 | 一种集群通信中听话方状态上报的方法 |
CN103249008B (zh) * | 2012-02-03 | 2018-10-26 | 上海中兴软件有限责任公司 | 听用户信息的统计方法、装置及系统、听用户终端 |
CN105101452B (zh) * | 2015-06-29 | 2018-08-21 | 四川海格恒通专网科技有限公司 | 一种用于集群通信系统的地理位置上报方法 |
CN107295482B (zh) * | 2016-03-31 | 2020-02-11 | 展讯通信(上海)有限公司 | 用户设备、集群核心网设备及其组呼建立的方法 |
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- 2005-09-28 AT AT05791915T patent/ATE457118T1/de not_active IP Right Cessation
- 2005-09-28 DE DE602005019250T patent/DE602005019250D1/de active Active
- 2005-09-28 EP EP05791915A patent/EP1811792B1/en active Active
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Also Published As
Publication number | Publication date |
---|---|
CN100415013C (zh) | 2008-08-27 |
ATE457118T1 (de) | 2010-02-15 |
EP1811792B1 (en) | 2010-02-03 |
EP1811792A4 (en) | 2008-02-27 |
CN1758777A (zh) | 2006-04-12 |
DE602005019250D1 (de) | 2010-03-25 |
EP1811792A1 (en) | 2007-07-25 |
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