WO2004110085A1 - Procede de communication a ressources partagees - Google Patents

Procede de communication a ressources partagees Download PDF

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Publication number
WO2004110085A1
WO2004110085A1 PCT/CN2003/000453 CN0300453W WO2004110085A1 WO 2004110085 A1 WO2004110085 A1 WO 2004110085A1 CN 0300453 W CN0300453 W CN 0300453W WO 2004110085 A1 WO2004110085 A1 WO 2004110085A1
Authority
WO
WIPO (PCT)
Prior art keywords
group
terminal
call
base station
long code
Prior art date
Application number
PCT/CN2003/000453
Other languages
English (en)
Chinese (zh)
Inventor
Jia An Yang
Xue Min Liu
Original Assignee
Zte Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zte Corporation filed Critical Zte Corporation
Priority to AU2003242209A priority Critical patent/AU2003242209A1/en
Priority to PCT/CN2003/000453 priority patent/WO2004110085A1/fr
Publication of WO2004110085A1 publication Critical patent/WO2004110085A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04—Large scale networks; Deep hierarchical networks
    • H04W84/08—Trunked mobile radio systems

Definitions

  • the present invention relates to a wireless communication system, and in particular, to a trunked communication method based on a CDMA2000 communication system.
  • Trunking communication is a special dispatching communication method, including dedicated command and dispatching communication. It is a communication method that appeared very early.
  • the development of the trunking communication system has gone through a pair of walkie-talkies, a single-frequency simplex networking, an inter-frequency single (dual) duplex networking, a single-channel one-call response, a system with selective calling, and a multi-channel automatic dialing system.
  • the cluster communication mainly implements group calls between cluster users, and the cluster users can directly join the call without receiving a response from other users.
  • the trunking communication system is divided into an analog trunking communication system and a digital trunking communication system in accordance with the internal technical standards.
  • the digital trunking communication system adopts digital processing methods in terms of signaling, multiple access methods, voice coding technology, modulation and demodulation technology, synchronization technology, error detection and correction technology, and diversity technology.
  • iDEN digital trunking communication system and Terrestrial Trunked Radio (TETRA) communication system. These two trunking communication systems use TDMA multiple access technology.
  • iDEN digital trunking communication system is developed and produced by American Motorola Company, and its working frequency band is 800 bands.
  • TETRA communication system adopts the European Telecommunications Standards Institute ETSI recommendation It is a digital trunking communication standard with an operating frequency band of 400MHz or 80Hz, which is an open air signaling interface system. It adopts advanced codebook excitation linear prediction coding ACELP and / or differential orthogonal shift keying modulation QPSK technology.
  • ETSI European Telecommunications Standards Institute
  • ACELP advanced codebook excitation linear prediction coding ACELP and / or differential orthogonal shift keying modulation QPSK technology.
  • iDEN digital trunking communication system and TETRA digital trunking communication system use TOMA's multiple-access method, affected by TOMA technology itself, the system's capacity is limited. Although the capacity can be increased by sacrificing voice quality, it still cannot meet the growing demand. Communication needs.
  • a mobile communication system and a method for implementing trunking services proposes a circuit-domain trunking communication technology based on CLA.
  • This technology uses the addition of conference television equipment on the switch side and the addition of a security algorithm.
  • the voice is encrypted, but because the system still uses separate air channels for each cluster user, the system capacity in a single cell becomes the bottleneck of the cluster capacity.
  • the conference television equipment itself such as a single group
  • the low capacity of group users and the inability to perform priority scheduling make this technology only suitable for the communication needs of 20-30 nodes. Therefore, it cannot meet the requirements for cluster communication in practical applications, such as flood control and rescue command. Tens of thousands of groups communicate.
  • the CDMA2000 system has a broadband spread-spectrum air interface, which can not only provide traditional voice services, but also high-speed packet data services. Because this system uses reverse pilot technology, air coding method, diversity reception technology and fast power control technology, it increases the modulation and demodulation gain of the channel and reduces interference to other users, so the spectrum utilization of the CDMA2000 system is obtained. The increase ensures that there is no need to reduce the number of original voice users while supporting multiple high-speed data users. In addition, the unique soft handover function of the CDMA system can ensure more data services. Plus stable delivery.
  • the CDMA OQ system due to its broadband spread-spectrum air interface and reverse pilot technology, makes it possible to increase the capacity of the trunking system. If the technology of the CDMA2000 system can be combined with the trunking system, not only can the technical advantages of the CDMA2000 technology be used, It can also implement the user's cluster business requirements.
  • the technical problem to be solved by the present invention is to provide a cluster communication method based on a CDMA2000 communication system, which overcomes the problem of limited cluster system capacity caused by the use of wireless resources by cluster users in the prior art.
  • the trunking communication method according to the present invention is applied to a CDMA200Q mobile communication system.
  • the communication system includes a base station system consisting of at least one base transceiver station and a base station controller, a core network device, and a cluster server.
  • the base transceiver station has a cluster control function; the basic idea of the trunking communication method is that the base station system allocates a common forward service channel to the same group under the same cell, and the group terminals use a common long code mask to monitor the common
  • the forward service channel uses a service channel in the reverse direction to provide reverse service support for group terminals through scheduling.
  • the specific steps include: the terminal initiates a cluster call request, and the base station sends the call request to the cluster server; the cluster server searches for the location Describe the group terminal called by the terminal and its location information, and notify the base station of the cell location information of the group terminal called by the terminal; the base station assigns a common forward traffic channel to each cell where the group terminal is located; the cluster The server notifies the base station of the group's common long code mask / Or said terminal group; trunking server by the base station to the terminal has the right to speak is assigned a reverse traffic channel; the terminal groups using a common long code mask listening to the forward common traffic channel.
  • the cluster server notifies the base station and / or the group terminal of the common long code mask of the group.
  • the steps include: the cluster server judges whether the public long code mask of the group has been agreed, that is, whether the determined serial number is registered as the public long code mask of the group when the terminal applies for service, and if it is agreed, the base station is notified to use the public long code mask. Long code mask; if there is no agreement, the cluster server constructs a common long code mask, notifies the base station, and notifies the corresponding group terminal of the common long code mask through an air message.
  • the step of the cluster server allocating a reverse traffic channel to the terminal with a voice branch through the base station further includes: the cluster server judges whether the cluster call is the first call of the group, and if so, notifies the base station that there is a voice
  • the right terminal establishes a reverse traffic channel; if not, the cluster server judges whether there are other terminals in the group currently talking, and if not, it notifies the base station to establish a reverse traffic channel for the terminal initiating the call; if If yes, the cluster server judges whether the priority of the terminal initiating the call is higher than the priority of the terminal in the call, and if the priority of the terminal initiating the call is high, the base station is notified to forcibly remove the user currently in the call
  • the reverse traffic channel establishes a reverse traffic channel for a terminal with a high priority; if the priority of the terminal initiating the call is low, the current call state is maintained.
  • the common long code mask includes two types: a long code mask for a non-full group call and a long code mask for a full group call; the long code mask for the non full group call is used for a called terminal A trunk call when the terminal is part of a group, and the long code mask of the full group call is used for a trunk call when the called terminal is all the terminals of the group.
  • the invention adopts a common forward service channel method in the same cell, so that a cluster group can use only one forward channel in a cell, and a cluster group uses only one reverse service channel, so that the original limitation is
  • the digital trunking system with the number of users in the area has become a system with unlimited number of users in a single group, which greatly increases the system capacity of trunking communication and reduces the system of trunking communication.
  • the traffic congestion probability fundamentally solves the problem of cell capacity limitation in digital trunking systems.
  • FIG. 1 is a structure diagram of a system adopting a cluster communication method of the present invention
  • FIG. 3 is a schematic diagram of a common long code mask in the method of the present invention.
  • FIG. 4 is a flowchart of scheduling a reverse traffic channel in the method of the present invention.
  • the trunking communication method of the present invention can be used in a system as shown in FIG. 1 and includes a base station system, necessary core network equipment, and a cluster server.
  • the base station system includes at least one base transceiver station and one base station controller.
  • For the equipment that directly uses the MIMO200 () communication system for the base transceiver station and the base station controller, corresponding cluster control functions need to be added, such as processing of service options for trunk calls, and the terminal is a trunk user.
  • a cluster can include multiple groups, users of a group can be located in multiple cells, and a group can include more than one cluster user in a cell.
  • FIG. 2 is a flowchart of a cluster communication method according to the present invention.
  • the terminal A in FIG. 1 initiates a cluster call request through a reverse control channel.
  • the call request includes information of the called group terminal, and the cluster server may determine which group terminal sends which type of common long code mask to the call request. code.
  • the base station system determines that it is a trunk call according to the service option, and sends an initiation message to the trunk server.
  • the cluster server After the cluster server receives the call message, it searches for the group terminal called by terminal A and its location information, and notifies the base station of the location information of the group terminal called by terminal A, and the base station establishes one for each cell where these group terminals are located.
  • Common forward traffic channel The circle and multiple arrows in FIG.
  • the cluster server Call request to determine whether the common long code mask of the group has been agreed, that is, whether the determined serial number is registered as the common long code mask of the group when the terminal applies for service, and if it is agreed, the base station is notified to use the common long code Mask; if there is no agreement, the cluster server constructs a common long code mask, notifies the base station, and notifies the corresponding group terminal of the common long code mask through an air message.
  • the cluster server allocates a reverse traffic channel to a terminal with a voice right through the base station. In this embodiment, the terminal A has a speaking right.
  • terminal A uses the reverse traffic channel for communication, and other terminals use the group's common long code mask to demodulate the forward traffic channel of the cell in which they are located, and completes the group call process where terminal A speaks, and other terminals answer.
  • the terminal is not limited to the group terminal equipment under the base transceiver station. If another terminal applies for a call, a call request is sent to the base station through a reverse control channel, and the base station determines whether to allocate a reverse traffic channel used by the group to the terminal according to related information.
  • FIG. 3 is a schematic diagram of an embodiment of a common long code mask for a forward traffic channel according to the present invention, where 101 represents a long code mask specified by the CDMA2000 physical layer, the first 10 bits (41-32) are fixed to 1100011000, and the last 32 bits (31-0) is constructed according to the ESN of the terminal, which is generally an ESN out of order to distinguish different terminals.
  • 102 and 103 can be used as long code masks required by the trunk call sharing forward channel of the present invention.
  • the structure of the long code mask proposed by the present invention is: the long code mask has a total of 42 bits, and the upper 10 bits (41-32) are used to identify the call as a group call; the lower 32 bits (31-0) are divided into equal parts Two long parts: the first 16 bits (31-16) are used as the clustering group ID (TGID for short) of the cluster, and There are two cases of 16 bits (15-0): First, it is used as a user ID in the group (Trucking User ID, TUID for short), and is used for non-full group calls in the group. The maximum number of 16 consecutive 1s is reserved. Position, as shown in 102 in FIG. 3; the second is fixed at 16 ones, and is used for group calls in a group call, as shown in 103 in FIG.
  • the cluster server determines which type of common long code mask to send according to the information of the called group terminal in the cluster call message. For the first 10 digits, it can be fixed to Q011100111, which is exactly the bitwise negation of the single terminal mask specified in the CDMA2000 physical layer standard; any sequence that is different from the ordinary call identifier can also be used.
  • the mobile terminal After the mobile terminal is powered on, it enters an idle state after a certain assignment process (step 401), which can speed up the call speed of the trunk call and meet the extremely short call time requirement of the trunk call.
  • the base station or core network checks whether the idle timer has timed out (step 402) to avoid the situation where the cluster has stopped calling and still occupies related resources. If it has timed out, the group terminal resumes the idle state (step 410); if it does not time out, Then, the base station detects the reverse control channel to determine whether there is a new trunk call (step 403).
  • the base station or core network device resets the idle timer (step 404), and sends an initiation message to the trunk server.
  • the cluster server determines whether the call is the first call in the group, and if so, notifies the base station to establish a reverse service channel for the terminal, the group enters the active state, and completes a group call using the common forward service channel ( Step 409), and return to step 402 after the call ends; if not, the cluster server determines whether other terminals in the group are talking, and if not, the base station is notified to establish a reverse traffic channel for the terminal, and the group enters an active state, and Use the common forward service channel to complete a group call (step 409), and return to step 402 after the call ends.
  • the cluster server determines whether the priority of the group terminal that is newly applying for the call is higher than the priority of the terminal that is talking (step 407). If it is high, the base station is notified to forcibly dismantle the current call.
  • the reverse traffic channel of the calling terminal establishes a reverse traffic channel for the terminal with higher priority (step 408), completes a call, and returns to step 402 after the call ends. If the priority of the newly requested group terminal is low, the current call is maintained, and the process returns to step 402 after the call ends.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne une communication à ressources partagées fondée sur le système de communication mobile AMCR 2000. La communication à ressources partagées réside fondamentalement sur une attribution d'une voie de trafic de réacheminement commun pour le même groupe dans la cellule par système de station de base. Un terminal de groupe utilise un masque de code long commun pour surveiller la voie de trafic de réacheminement commun et, dans une direction inverse, un support de trafic inverse est fourni au terminal de groupe d'une manière déployée avec une voie de trafic. Selon l'invention, un groupe à ressources partagées peut uniquement utiliser une voie de réacheminement et une voie de trafic inverse dans une cellule, selon un procédé d'utilisation de voie de trafic de réacheminement dans la même cellule, ainsi, un système à ressources partagées numérique limité à un certain nombre d'utilisateurs dans une cellule devient un système pour un certain nombre d'utilisateurs d'un seul groupe illimité, la communication à ressources partagées voit sa capacité système considérablement accrue et la probabilité de congestion de son système est réduite et on résoudra ainsi complètement le problème de la limite de capacité cellulaire du système à ressources partagées numérique.
PCT/CN2003/000453 2003-06-11 2003-06-11 Procede de communication a ressources partagees WO2004110085A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU2003242209A AU2003242209A1 (en) 2003-06-11 2003-06-11 A trunked communication method
PCT/CN2003/000453 WO2004110085A1 (fr) 2003-06-11 2003-06-11 Procede de communication a ressources partagees

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2003/000453 WO2004110085A1 (fr) 2003-06-11 2003-06-11 Procede de communication a ressources partagees

Publications (1)

Publication Number Publication Date
WO2004110085A1 true WO2004110085A1 (fr) 2004-12-16

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AU (1) AU2003242209A1 (fr)
WO (1) WO2004110085A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100407819C (zh) * 2006-03-27 2008-07-30 华为技术有限公司 对集群业务处理进行监听的方法及集群通讯***
CN100442870C (zh) * 2005-06-22 2008-12-10 上海华为技术有限公司 一种在蜂窝***上实现集群通信业务的方法
CN1929643B (zh) * 2006-09-21 2010-05-19 华为技术有限公司 数字集群通信***及其编解码方法
CN101137126B (zh) * 2007-02-07 2010-06-16 中兴通讯股份有限公司 一种用于cdma数字集群***的组呼呼叫模式自动优化的方法
CN101137107B (zh) * 2006-11-14 2011-05-11 中兴通讯股份有限公司 一种改进反向共享业务信道信令发送策略的方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6317595B1 (en) * 1998-06-05 2001-11-13 Com-Net Ericcson Critical Radio Systems, Inc. Methods and system for transferring calls within trunked digital radio communications systems
GB2377854A (en) * 2001-07-18 2003-01-22 Motorola Inc Direct-mode call set-up in a trunked-mode radio communication system
US6519472B1 (en) * 1997-03-12 2003-02-11 Terence Brennan Trunked radio monitoring system
CN1418021A (zh) * 2001-10-30 2003-05-14 深圳市中兴通讯股份有限公司 一种移动通信***及其实现集群业务的方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6519472B1 (en) * 1997-03-12 2003-02-11 Terence Brennan Trunked radio monitoring system
US6317595B1 (en) * 1998-06-05 2001-11-13 Com-Net Ericcson Critical Radio Systems, Inc. Methods and system for transferring calls within trunked digital radio communications systems
GB2377854A (en) * 2001-07-18 2003-01-22 Motorola Inc Direct-mode call set-up in a trunked-mode radio communication system
CN1418021A (zh) * 2001-10-30 2003-05-14 深圳市中兴通讯股份有限公司 一种移动通信***及其实现集群业务的方法

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100442870C (zh) * 2005-06-22 2008-12-10 上海华为技术有限公司 一种在蜂窝***上实现集群通信业务的方法
CN100407819C (zh) * 2006-03-27 2008-07-30 华为技术有限公司 对集群业务处理进行监听的方法及集群通讯***
CN1929643B (zh) * 2006-09-21 2010-05-19 华为技术有限公司 数字集群通信***及其编解码方法
CN101137107B (zh) * 2006-11-14 2011-05-11 中兴通讯股份有限公司 一种改进反向共享业务信道信令发送策略的方法
CN101137126B (zh) * 2007-02-07 2010-06-16 中兴通讯股份有限公司 一种用于cdma数字集群***的组呼呼叫模式自动优化的方法

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Publication number Publication date
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