91 results about "Packet control unit" patented technology

A method for dynamic division of the radio capacity in a Time Division Multiple Access (TDMA) system between different packet radio services. Each packet radio service is composed of packets with the same or different priority. Several MSs can share a time slot. Information regarding to the interference for each MS is obtained by a request from a mobile station (MS) or through a traffic measurement at the base transceiver station. This information, along with the QoS contract, is used as criteria in allocating more time slots to packet radio service. A framework of dynamic scheduling for mobile communication (DSMC) comprising a Channel Codec Unit (CCU) and a Packet Control Unit (PCU) determines the service rate upon the required QoS of a user and the interference level.

There is provided a radio system comprising a remote network element, a packet control unit and a mobile station, the radio system being configured to communicate control blocks and data blocks between the mobile station, the packet control unit and the remote network element, the control blocks controlling data transmission in the radio system. The packet control unit is configured to determine which given packet control unit functionalities related to the transmission of given control or data blocks are to be distributed from the packet control unit to a remote net-work element, and to provide to the remote network element control information on which packet control unit functionalities are distributed to the remote network element; and the remote network element is configured to perform the given packet control unit functionalities for given control blocks or data blocks on the basis of the control information received from the packet control unit.

There is provided a radio system comprising a base station, a packet control unit and a mobile station, the radio system being configured to communicate control and data blocks between the mobile station, the packet control unit and the base station, the control blocks controlling data transmission in the packet radio system. The packet control unit is configured to determine which given packet control unit functionalities related to the transmission of given control or data blocks are to be distributed from the packet control unit to the base station, and to provide to the base station control information on which packet control unit functionalities are distributed to the base station; and the base station is configured to perform the given packet control unit functionalities for given control or data blocks on the basis of the control information received from the packet control unit.

A method for establishing a packet data connection in a telecommunications system which includes an office network, an operator network, and a local area network between them. Data transmission from the office network through the local area network is adapted to a data transmission protocol according to a mobile system. The office network also includes a serving support node, a packet control unit, and a gateway support node, which are arranged to support the packet data protocol of the mobile system. The serving support node, packet control unit, and gateway support node are arranged to have a functional connection with each other and with a radio access gateway. A packet data connection request is made from a mobile station to the office network, and a packet data connection is established from the serving support node and gateway support node to a destination address defined by the link request.

Methods and apparatus are described for optimising the allocations of resources, e.g. time slots on the Agprs interface in a cellular mobile telecommunications network for packet data. The Agprs interface is provided between a packet control unit (PCU) and a base station controller (BSC). The PCU determines which cells of the network are least and most loaded and sends a request to the BSC to reallocate one resource unit (time slot).

A decryption key for decrypting data from an access node is distributed to an access terminal intending to receive the data. An authentication unit receives a message for terminal authentication including a terminal identifier from the terminal and authenticates the terminal. The authentication unit refers to a content registration table having stored in advance the content type of a content which the terminal can receive, in association with the terminal identifier, according to the received terminal identifier to obtain a corresponding content type. The authentication unit refers to a decryption data base having stored in advance a decryption key and its valid period in association with a content type, according to the obtained content type to obtain a corresponding decryption key and valid period. The authentication unit sends an authentication result and the decryption key and valid period to the terminal or to a packet control unit.

The invention discloses a piece of cab integrated radio communication equipment comprising a CAN interface conversion unit 1, a GSM-R voice unit connected with the CAN interface conversion unit 1, a main control unit, a satellite positioning unit, a spare control unit, a CAN interface conversion unit 2, a GSM-R data unit connected with the CAN interface conversion unit 2, a 400MHz / 450MHz communication unit, an LBJ communication unit, a record unit, a wireless broadband unit, a power supply unit, a power bus, a CAN bus 1, and a CAN bus 2. The main control unit is connected with the CAN interface conversion unit 1, the satellite positioning unit, the spare control unit, an exchange interface unit, the CAN interface conversion unit 2, the 400MHz / 450MHz communication unit, the LBJ communication unit and the record unit through the CAN bus 1 and the CAN bus 2, and is connected with the spare control unit, the exchange interface unit, the record unit and the wireless broadband unit through an LAN cable. The exchange interface unit is connected with a plurality of MMI terminals. The equipment has the advantages of high reliability, high security and high flexibility, can achieve a function of remote software and database upgrading, and can meet the requirement of a 400MHz band.

A telecommunication network transmission divergence system and method is disclosed. A first multi-service-packet-control-unit and a second multi-service-packet-control-unit are disposed between a base station and a radio network controller. Packets are diverged to one or more low-stability & long-delay routes based on priorities of the packets. The system and method reduce transmission load of a frame exchange protocol interface (Iub) while maintaining a stable quality of service for divergent packet transmissions. As a result, transmission load and cost are significantly reduced and transmission efficiency is improved.

A telecommunication network broadband off-loading system and method, wherein, a first multi-service-packet-control unit and a second first multi-service-packet-control unit are provided in offsetting and off-loading packets onto one or a plurality of xDSLs or fiber glass cables through a load balance mechanism to proceed with packet transmission, and in this way of packet offsetting and off-loading transmission, a stable quality of service can be maintained. Through application of said telecommunication network broadband off-loading system and method disclosed, the load of transmission equipment and transmission cost can be significantly reduced, hereby raising transmission efficacy and performance.

A packet control unit for a radio telecommunications system such as GPRS has a radio link control / medium access control blocks scheduler which allocates a number of temporary block flow queues to a timeslot for transmission to a mobile system; a fixed allocation table is provided having allocation slots corresponding to RAC blocks, and the RAC blocks scheduler reads the table cyclically and allocates slots according to the reading. Timeslots are requested later during increased demand conditions and are released earlier during decreasing demand conditions than in currently known arrangements.

A method, system, and mobile station are presented for informing a packet control unit (PCU) whether the dual transfer mode (DTM) capable mobile station has an ongoing circuit switched connection and is in dedicated mode. The packet control unit will typically be located at a base station. Upon entering the dedicated mode, the mobile station alerts the PCU of entry into the dedicated mode, using a mobility management (MM) procedure. This mobility management procedure is utilized for alerting the PCU about the dedicated mode, regardless of physical movement of the mobile station such as movement from one cell to another.

A buffer in a packet control network unit may overflow or underflow during data transmission from an external network to a user terminal, thus causing many kinds of problems in data transmission. The problems can be prevented in a packet network providing a data flow control algorithm performed by the packet control unit. The packet control unit indicates to the network node, from which it receives data packets, the actual transmission rate of a specified data flow, as well as the buffering capacity for that flow. Then the said network node adjusts its transmission rate for the indicated flow.

A multiple services system through sensors having a central monitoring unit for vessels, consisting of a central monitoring unit and a set of sensors being connected to each other in a wireless way, and being susceptible to establish communication through the central monitoring unit with a remote user.

To address the need for a communication infrastructure and method to speed uplink data setup, the present invention provides for the assignment of uplink packet data resources by basestation transceiver systems (BTSs) without the need to communicate with any packet control unit (PCUs) first. The present invention accomplishes this by reserving packet data resources before they are needed or requested and providing them to BTSs for assignment. Thus, BTS-PCU communication occurs in the period before an uplink connection is needed and after uplink data is established, effectively eliminating the BTS-PCU delay from uplink data setup. Moreover, the present invention provides for the transmission of transmit allowance messages before an uplink request is made by the communication unit, further reducing uplink data setup time.

A communication apparatus that sequentially transmits a plurality of pieces of packet data over a network, each piece of packet data including a piece of block data, the communication apparatus including a storage circuit operable to generate a plurality of pieces of verification data in one-to-one correspondence with the plurality of pieces of block data, each piece of verification data reflecting content of the corresponding piece of block data which is data having a first size, and a store each pair of a piece of verification data and a corresponding piece of block data in a different one of a plurality of areas having a second size in an external memory; a packet control unit that includes a CPU and causes the CPU to execute a program to, for each piece of block data stored in the external memory by the storage circuit, read the piece of verification data corresponding to the piece of block data, generate a piece of header information including the read piece of verification data, and perform control to transmit a piece of packet data including the generated piece of header information and the piece of block data corresponding to the piece of verification data included in the generated piece of header information, and a network unit operable to sequentially transmit each piece of packet data according to the control performed by the packet control unit, wherein the storage circuit that generates the plurality of pieces of verification data and stores the plurality of pieces of verification data and the corresponding plurality of pieces of block data and the CPU that executes the program for generating the plurality of pieces of header information and performing control to sequentially transmit each piece of packet data operate in parallel.

Transferring communication within a communication system occurs as follows: during communication with a serving base station, in order to shorten the duration before downlink data can be initiated to a remote unit that has performed cell reselection, an automatic downlink procedure is executed. The auto downlink procedure transfers remote unit related information to a scheduler for appropriate allocation of air interface resources for a remote unit that recently has undergone a cell reselection procedure. When the remote unit reestablishes itself in a target cell, the source packet control unit determines that the cell reselection was successful and selectively transfers radio access capability information to the target packet control unit. The target packet control unit immediately is able to transfer downlink data arriving from the serving GPRS support node to the remote unit without first establishing a downlink temporary block flow, thereby significantly reducing the time required for cell reselection.

A packet data transmission protocol that uses transmission windows includes a packet control unit (PCU) (4, 8) that transmits (100) blocks of data packets from a first transmission window. A user equipment (UE) (2) sends (102) a negative acknowledgement to the PCU if the packets are not received properly, whereupon the PCU construct (106) a dummy radio link control (RLC) block (60), including at least header information upon event of an established (104) trigger (60) event. The PCU sends (108) the dummy RLC block at a more robust coding rate to prevent a RLC stall condition.

The invention discloses a packet data transmission system, which comprises a BTS (base transceiver station) and a BSC (base station controller). Correspondingly, the invention also discloses a packet data transmission method, which comprises that: the BTS builds a PCU (packet control unit) frame, packs the built PCU frame into a network protocol frame according to the carrier frequency and sends the network protocol frame to the BSC; and the BSC resolves the PCU frame from the network protocol frame, resolves PCU loads from the PCU frame, orders the resolved PCU loads, selects the ordered PCU loads to form a logic link control frame and sends the logic link control frame to a core network. Therefore, the system and the method can optimize system time delay and realize reliable transmission.

Communications are established between an originating mobile station (104) and a target mobile station (120) in an expedited manner. An initial short packet is transmitted from an originating mobile station (104) and the initial short packet is translated into an Internet Protocol (IP) packet. The IP packet is transmitted to a target Packet Control Unit (PCU) (116). An acknowledgment IP packet is responsively received from the target mobile station (120) via the target PCU (116) and a communication link is established between the originating mobile station (104) and the target mobile station (120).

The invention discloses a service access system of a mobile communication network. Through a service function of accessing a service supporting node (SGSN) or a packet control unit (PCU) / a radio network controller (RNC) into a virtual private network (VPN), the mobile communication network is enabled to support a fixed access mode. The invention further discloses a service access method of the mobile communication network. The invention expands the service access mode of the mobile communication network so that a terminal can continue to use mobile application services under a mobile network environment through a fixed IP (Internet Protocol) access mode.

A method and packet data support node in a radio telecommunications network supporting packet data communication between a packet data network and a mobile terminal in radio communication with a first packet control unit. The packet data support node receives a message from the mobile terminal requesting handover to a second packet control unit. A packet flow context detector in the packet data support node detects the number of packet flow contexts currently active in the first packet control unit for supporting the packet data connection. The detector sends a message during handover to the second packet control unit indicating the number of active packet flow contexts. The message is used for activation of a corresponding number of packet flow contexts in the second packet control unit.

A traffic management system and a method for managing in a network object traffic formed on a physical layer along path sections between individual path points. The traffic management system comprises a packet switched control network including said packet control units on a traffic control layer in which packets moving along packet routing links between packet control units simulate the movement of corresponding objects in the physical layer. If the arrival of an object is detected at a path point and the arrival of a corresponding packet is not detected at a packet control unit corresponding to the path point, a synchronization device in a packet control unit sends a packet corresponding to the object to the packet control unit corresponding to the path point at which the object has arrived. Thus, avoiding non-synchronous states between the packet routing and object movement.

The invention relates to a method for releasing service connection and a system, a mobile station and a base station subsystem to carry out the method, wherein the method comprises the following steps of: releasing the service connection between a packet control unit and a packet data service node according to the information of a request to release the service connection received when service connection is in a dormant state. The mobile station comprises: a trigger module which is used to receive a normal or abnormal disconnection / connection request; a transmitting module which is used to transmit request information to release the service connection according to the normal or abnormal disconnection / connection request. The base station subsystem comprises a receiving module which is used to receive the request information to release the service connection; a configuration module which is used to configure the information for releasing the service connection between the packet control unit and the packet data service node. The system comprises the mobile station and the base station subsystem. The invention realizes to release the service connection between the packet control unit and the packet data service node when the service connection is in a dormant state and a normal or abnormal disconnection / connection occurs.

A cellular mobile radio network includes base stations, a packet control unit capable of communicating with a radio terminal via two or more base stations, and routing means for routing data between a remote unit and the packet control unit. The data transmitted by the remote unit to the terminal are stored temporarily in the packet control unit. The remote unit is adapted to receive from the terminal acknowledgments relating to transmitted data segments and to retransmit data segments that have not been acknowledged on the expiry of a retransmission time depending on the received acknowledgments. Data segments are transmitted from the remote unit to the terminal via a first base station connected to the packet control unit. In response to a request for communication transfer to a second base station connected to the packet control unit, only a portion of the data stored temporarily in the packet control unit is retransmitted to the terminal via the second base station.

Disclosed herein is a portable Internet analyzer (PIA) having a handover test function. The portable Internet analyzer includes a transmission unit, a reception unit, a switching unit, and a central control unit. The transmission unit encodes the various DownLink signals of a serving and / or target Base Station (stBS) using a preamble index, synthesizes the encoded signals, and sends the synthesized signals to a Portable Subscriber Station (PSS). The reception unit receives various UpLink (UL) signals from the PSS, and decodes the UL signals using the cell Parameters of the stBS. The switching unit selectively switches the transmission unit and the reception unit to the PSS. The central control unit generates various Media Access Control (MAC) messages to be sent to the PSS through the transmission unit in association with the handover test, analyzes handover test-related MAC messages received through the reception unit, and controls switching operation of the switching unit.

The invention provides a charging control method, a central control unit (CCU), a vehicle and a computing device. The charging control method is applied to the central control unit (CCU), and the central control unit (CCU) is used for being connected to a charging port of the vehicle. The method comprises the following steps: a connection confirmation (CC) signal on a circuit connected to the charging port is acquired; according to the connection confirmation (CC) signal, a charging plug head type connected to the charging port is determined, and the charging plug head type can be a fast charging plug head, a slow charging plug head, a vehicle-to-vehicle charging plug head or an external power supply charging plug head; and according to the charging plug head type, the vehicle is controlled to get into an operating mode corresponding to the charging plug head type. According to the embodiments of the invention, the connection confirmation (CC) signal on the circuit connected to the charging port is acquired by the central control unit (CCU), moreover, a charging plug head type is determined according to the signal, the vehicle is then controlled to get into a corresponding operating mode, the control and guiding functions of different parts are integrated, the material cost is reduced, and the future charging development trend is met.

The embodiment of the invention discloses an SGSN backup method, comprising that the supporting point SGSN of a standby service GPRS is linked with a packet control unit PCU, and the configuration data of a primary SCSN is synchronized through a channel arranged between the primary SCSN; when a standby SGSN tests that the primary SGSN is in failure, a business processing is done to the business data transmitted by the PCU, according to synchronous configuration data; correspondingly, the embodiment of the invention provides a communication system and communication equipment, and the technical proposal provided by the embodiment of the invention can improve the reliability of the communication network with little alteration towards the present networks.

There is provided a method and apparatus for controlling traffic according to user that includes a statistics processing unit measuring traffic volume used according to user, calculating a traffic variation ΔV by using the measured traffic volume, and updating a traffic user list by comparing the calculated traffic variation ΔV; a traffic detecting unit determining whether abnormal traffic is generated in a network and transferring a control command according to priority in the traffic user list; and a packet controlling unit controlling a user's traffic according to the control command received from the traffic detecting unit.