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45 results about "Channel-associated signaling" patented technology

Channel-associated signaling (CAS), also known as per-trunk signaling (PTS), is a form of digital communication signaling. As with most telecommunication signaling methods, it uses routing information to direct the payload of voice or data to its destination. With CAS, this routing information is encoded and transmitted in the same channel as the payload itself. This information can be transmitted in the same band (in-band signaling) or a separate band (out-of-band signaling) to the payload.

Distributed mixing implementation structure for space-borne switchboard and implementation method thereof

ActiveCN101917222AAvoid wastingMeet the needs of scheduling capabilitiesRadio transmissionComputer architectureWave shape
The invention discloses a a space-borne switchboard with distributed mixing implementation structure and an implementation method thereof. In the implementation method, signals of hundreds of wave beams sent from a receiving digital beam forming (DBF) network are sent to a corresponding uplink processors by a receiving-circuit waveform exchange module first so as to realize the selection and processing of a channel; and after base band exchange and spread spectrum modulation are performed, the convergence of the signals of the wave beams is realized by an emitting-circuit waveform exchange module. The implement method comprises the steps that: a, the receiving-circuit waveform exchange module sends M arbitrary signals of the wave beams to N1 uplink processors under control commands according to the mapping relationship; b, after carrying out de-spreading modulation on the signals, the uplink processors complete the combination of channel associated signaling by a base band exchange module and the exchange output to N2 downlink processors; and c, the emitting-circuit waveform exchange module outputs the outputs of the downlink processors to the receiving digital beam forming (DBF) network in the form of the wave beam. The distributed mixing implementation structure for the space-borne switchboard and the implementation method thereof of the invention can meet the requirements for scheduling capability produced in space-borne processing services when different wave beams of a user service subjected to space-borne processing are distributed non-uniformly and the distribution is changed dynamically with time so as to meet the requirements for user processing with minimum space-borne processing resources.
Owner:XIAN INSTITUE OF SPACE RADIO TECH

Frame synchronization method based on burst frames of TDMA (Time Division Multiple Access) system

The invention discloses a frame synchronization method based on bursting frames of a TDMA (Time Division Multiple Access) system. The frame synchronization method comprises the following steps: 1) a transmitting end transmits voice or data to a receiving end by adopting a superframe as a basic unit which consists of a plurality of burst subframes; 2) a frame synchronization word FS is inserted into an effective load area of each burst subframe, the two sides of the frame synchronization word FS are respectively provided with a channel associated signaling domain CCF; and 3) the transmitting end and the receiving end acquire frame synchronization signals by the frame synchronization words FS of the burst subframes, and simultaneously judging the time slot type, the channel direction and the channel state according to the channel associated signaling domain CCF. The frame synchronization method disclosed by the invention has the advantages that each burst subframe is inserted with the frame synchronization word FS and the channel associated signaling domains CCF, so that not only can the frame synchronization be obtained in shorter time, but also the receiving end in a sleeping state can be awaken in shorter time, the total time length is delayed, and the transmission is more reliable. The frame synchronization method also can be used for finishing the functions of late entering and forced releasing and the like, obtaining indications of control and recognition information so as to be convenient for better recognition and processing of the receiving end for the received information.
Owner:SHENZHEN TELETONE INFORMATION TECH

Voice transmission method based on channel associated signaling

The invention discloses a voice transmission method based on channel associated signaling. The method comprises the following steps that: 1) a voice transmitting end transmits a voice start signaling to a voice receiving end when initiating voice call, and then, takes the voice superframe as the basic unit to execute voice transmission, wherein the voice superframe is composed of multiple voice burst frames; 2) a voice frame synchronization word FS1 and a channel associated signaling field (CCF) are inserted into an effective load region of each voice burst frame, wherein the CCF comprises a channel associated signaling unit; and 3) multiple channel associated signaling units form one voice channel associated signaling, one voice channel associated signaling is transmitted when each voice superframe is transmitted, so as to realize a special function needed for the voice transmission process, and after the voice is transmitted overall, the voice transmitting end transmits one voice ending signaling to the voice receiving end so as to end the voice transmission. According to the method provided by the invention, multiple channel associated signaling units form one voice channel associated signaling, and the functions, such as access delaying and forced releasing, can be finished.
Owner:SHENZHEN TELETONE INFORMATION TECH

Method and system for synchronizing access node clock of synchronization Mesh network based on channel associated signaling

The invention relates to a method and system for synchronizing an access node clock of the synchronization Mesh network based on a channel associated signaling. The method comprises the steps that a Hello greeting package is utilized for achieving fast network access of an AN belonging to a BN/GN; timestamp information of local nodes is recorded at the same time through at least three times of channel associated signaling interaction; a clock drifting value, relative to the BN/GN, of the AN and wireless link transmission delay is calculated, and clock compensation is provided; interaction is carried out regularly or irregularly to achieve long time synchronization of the AN. According to the method, the problems that a role of a host node and a slave node is firstly determined through the spanning tree algorithm in the process of Mesh network synchronization in the prior art, too many service resources are occupied due to the interaction of related information when time for synchronization carried out on the host node and the slave node is shortened, the message data volume of information interaction is not reduced, the synchronization of the AN is achieved not through the information resources of the AN, and the synchronization of the AN depends too much on the host node information resources are solved.
Owner:北京天朗宇海科技有限责任公司

Method for implementing reanswer call

InactiveCN101304605ARealize re-answer call implementation methodInterconnection arrangementsConnection managementTime delaysSignaling protocol
The invention discloses a re-answer call realizing method, comprising the steps that: S402, a calling user located by a mobile terminal calls a called user located by a fixed terminal and carries out the conversation, a media gateway control device issues the detection events of re-answer signal to a media processing device; S404, when a fixed network located by the fixed terminal detects the hanging up of the called user, a message of hanging up of the called user is sent to the media processing device, and the media processing device sends the message of hanging up of the called user to the media gateway control device; S406, the media gateway control device does not immediately release the call after receiving the message of hanging up of the called user and starts the time-delay detection process to wait for the hanging up of the calling user, when a re-answer message which is reported form the media processing device is received during the time-delay detection period, the time-delay detection process is cancelled and the conversation between the calling user and the called user is carried out. The re-answer call realizing method can realize the re-answer call aiming at the situation that a TDM chain is adopted between a fixed network and the NGN media processing device and channel associated signaling protocols are used for carrying out the voice call.
Owner:ZTE CORP

Trunking communication method and device of low-orbit constellation satellite communication system

PendingCN114142910AMeet fast synchronization needsAchieve fast synchronizationSynchronisation arrangementBroadcast service distributionTelecommunications linkCommunications system
The invention discloses a trunking communication method of a low-orbit constellation satellite communication system, which comprises the following steps of: setting a low-orbit trunking communication frame structure: aiming at a trunking communication service of the low-orbit constellation satellite communication system, adding channel associated signaling on a service channel or an uplink shared channel, controlling a communication link, and setting a low-orbit trunking communication frame structure; synchronization between the satellite terminal and the satellite is realized; a low-orbit trunking communication switching process: satellite terminals are switched in the base stations under the same gateway station or among the base stations under the same gateway station; in the switching process, the cluster controller selects the matched frequency resources from the overall situation for allocation, and resource allocation and switching negotiation between the cluster controller and the base station are achieved. According to the invention, the frame structure meeting the rapid synchronization requirement is added on the service channel, the link is controlled, and rapid synchronization is realized; and a communication flow between the cluster controller and the base station is also designed, so that the functions of resource allocation, switching negotiation and the like between the cluster controller and the base station during the cluster service are realized.
Owner:NANJING PANDA HANDA TECH

Frame synchronization method based on burst frame in tdma system

The invention discloses a frame synchronization method based on bursting frames of a TDMA (Time Division Multiple Access) system. The frame synchronization method comprises the following steps: 1) a transmitting end transmits voice or data to a receiving end by adopting a superframe as a basic unit which consists of a plurality of burst subframes; 2) a frame synchronization word FS is inserted into an effective load area of each burst subframe, the two sides of the frame synchronization word FS are respectively provided with a channel associated signaling domain CCF; and 3) the transmitting end and the receiving end acquire frame synchronization signals by the frame synchronization words FS of the burst subframes, and simultaneously judging the time slot type, the channel direction and the channel state according to the channel associated signaling domain CCF. The frame synchronization method disclosed by the invention has the advantages that each burst subframe is inserted with the frame synchronization word FS and the channel associated signaling domains CCF, so that not only can the frame synchronization be obtained in shorter time, but also the receiving end in a sleeping state can be awaken in shorter time, the total time length is delayed, and the transmission is more reliable. The frame synchronization method also can be used for finishing the functions of late entering and forced releasing and the like, obtaining indications of control and recognition information so as to be convenient for better recognition and processing of the receiving end for the received information.
Owner:SHENZHEN TELETONE INFORMATION TECH

Gateway equipment, system and method for implementing butt joint of trunks

The invention discloses gateway equipment, a system and a method for implementing butt joint of trunks. The system comprises soft switching equipment, the gateway equipment and butt joint equipment, wherein the soft switching equipment is used for realizing corresponding service through signaling interaction with the gateway equipment; the gateway equipment is used for allocating time slot resources to signaling of different standards, encoding interoffice signaling forwarded by the soft switching equipment into standard signaling according to managed butt joint equipment information, and transmitting the standard signaling to the corresponding butt joint equipment according to an appointed time slot; and the butt joint equipment is used for receiving the corresponding standard signaling from the gateway equipment in the appointed time slot according to the time slot resource allocation information of the butt joint equipment managed by the gateway equipment. By the gateway equipment, the system and the method, different time slot resources are allocated to any standard signaling of an E1/T1 trunk, and a networking requirement that one trunk supports various types of standard channel associated signaling is met; therefore, finite trunk resources of the E1/T1 are used effectively.
Owner:ZTE CORP

Access equipment and method for implementing channel associated signaling compatibility on the access equipment

The invention discloses an access device and a method for realizing the compatibility of channel associated signaling on the access device. The access device comprises an inlet module, a line signaling processing module and a register signaling processing module; the method includes the following steps: the access device distributes the received channel associated signaling information and forwards line signaling information in the channel associated signaling information to the line signaling processing module for processing as well as register signaling information to the register signalingprocessing module for processing. The line signaling processing module and the register signaling processing module queries that which associated channel is butt-jointed by the circuit according to circuit number information carried in the received signaling information. According to a flow specified by a signaling standard of the associated channel, the received signaling information is processed. The access device and the method of the invention solve the problem of the compatibility between the access device and an on-line device well, and improve the stability, succession and maintainability of the access device.
Owner:ZTE CORP

A method for integrating dedicated channel signaling and service channel-associated signaling

ActiveCN113825211BReduce load pressureCapability Requirements to Reduce Beam LoadingAssess restrictionTransmissionQuality of serviceEngineering
The invention discloses a method for integrating dedicated channel signaling and service channel-associated signaling, in which an independent signaling beam is added to the satellite system and dedicated channel signaling is designed in the signaling beam; channel-associated signaling is designed in the service beam , and work with the dedicated signaling of the signaling beam; the user is in the dedicated signaling mode before the service is initiated, and the system first completes the user's random access and control information interaction through the dedicated signaling channel; during the service scheduling process In this mode, the user works in the channel-associated signaling mode, completes channel-associated control information interaction through the service channel-associated signaling channel, and completes user access management and resource scheduling through the dedicated channel-associated signaling channel and service channel-associated signaling channel . The present invention adopts the integrated design of dedicated channel signaling and service channel-associated signaling, improves the flexibility of the system through dedicated channel signaling, realizes random access of users, reduces user access response time, and improves user service quality.
Owner:天地信息网络研究院(安徽)有限公司
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