72 results about "UMTS Terrestrial Radio Access Network" patented technology

Disclosed is an uplink random access procedure in an NB-TDD (Narrow Band Time Division Duplexing) system. To achieve an acknowledgement for data transmission from a UTRAN (UMTS Terrestrial Radio Access Network), a UE selects one of a plurality of sync codes by which the UTRAN identifies UEs that request data transmission and transmits the selected sync code in a time slot of a sub-frame to the UTRAN. Then, the UE receives the sync code information, information about the arrival time of the sync code, time update information indicating a variation in the transmission time of data, and power information indicating an adjustment to a power gain in the UE from the UTRAN on an FPACH (Fast Physical Access Channel). The UE transmits the data on a P-RACH (Physical Random Access Channel) mapped from the FPACH according to the time update information and the power information.

An inter system handovers in a mobile telecommunication system is performed when a dual mode user equipment (UE) covered by both GSM/GPRS network and UMTS network connects a dedicated channel and sets up a call in a BSS region where the GSM/GPRS provides coverage, and then moves to a UTRAN (UMTS Terrestrial Radio Access Network) where the UMTS provides coverage, wherein the method includes the steps of: if the dual mode UE receives an inter system handover command, i.e. from the BSS to the UTRAN, requesting GSM/GPRS data link layer to suspend a GSM/GPRS data link by a sublayer RR of GSM/GPRS network layer in the UE, requesting a GSM/GPRS physical layer to release a physical channel of the GSM/GPRS, and sending the inter system handover command to the UTRAN for authorizing a sublayer RRC of UMTS network layer in the UE to continue a call; requesting, at the RRC in the UE, a UMTS physical channel to be configured as a UMTS physical channel, and monitoring if the UMTS physical layer succeeds to have the configuration of the UMTS physical channel as requested; if the UMTS physical layer succeeds to have the configuration of the UMTS physical channel, requesting, at the RRC in the UE, a UMTS data link layer to configure a UMTS data link, and conveying information to the UTRAN through a UMTS channel that the handover between systems from the BSS to the UTRAN has been successfully performed; and sending, at the RRC, a GSM/GPRS resource release message to RR/GRR, thereby resetting the GSM/GPRS physical layer and the GSM/GPRS data link layer.

A method of controlling the flow of data, in respect of a given mobile terminal, between a Radio Network Controller (RNC) and a NodeB of a UMTS Terrestrial Radio Access Network (UTRAN) where an Automatic-Repeat-Request (ARQ) mechanism is implemented between the NodeB and said mobile terminal to provide for the retransmission of unsuccessfully transmitted data. The method comprises generating control messages at the NodeB and sending these control messages to the RNC, each control message enabling the RNC to identify which data should next be sent to the NodeB.

Disclosed is a method for handling inter-RAT cell measurement in a dual-mode UE in a connected mode, which supports both GSM/GPRS (Global System for Mobile communication/General Packet Radio Service) RAT (Radio Access Technology) and UMTS (Universal Mobile Telecommunications System) RAT. A UTRAN (UMTS Terrestrial Radio Access Network) of the UMTS RAT transmits a measurement control message to a URRC (UMTS Radio Resource Control) of a UMTS network layer in the UE. Upon receiving the measurement control message, the URRC sends a measurement request for GSM cells to an RR/GRR (Radio Resource/GPRS Radio Resource) of a GSM/GPRS network layer. The RR/GRR activates a GSM physical layer and sends a measurement request for the GSM cells to the GSM physical layer. The GSM physical layer performs measurement on the GSM cells and reports a measurement value to the RR/GRR. The RR/GRR reports the measurement value for GSM cells, received from the GSM physical layer, to the URRC. The URRC reports the received measurement value for GSM cells to the UTRAN.

The invention provides a generation method of a secret key, and the users equipment is updated to universal terrestrial radio access networks or global system for mobile communication or enhanced data rate for GSM evolved radio access network from the switching or tracking area of evolved terrestrial radio access networks; wherein, mobility management entities and the users equipment use secret keys needed by the generation of universal terrestrial radio access networks or the global system for mobile communication or the enhanced data rate GSM evolved radio access network through prefixing parameters which comprise the root key of the evolved terrestrial radio access networks and the value of a non-access stratum counter. The method of the invention also provides a secret key generation system for generating the secret key.

The invention relates to the technical field of network communication and discloses a method and equipment for realizing idle state saving signaling. The method comprises the following steps of: when idle user equipment is accessed into a second network from a first network and if ISR (Information Storage and Retrieval) is activated, preserving position area information of the second network by the user equipment, and maintaining the preserved position area information of the first network; if the user equipment moves outside the corresponding position area of the position area information of the first network and the position area information of the second network, triggering updating processes of a mobile switching center. The invention can be used for reducing signaling treatment when the idle UE (User Equipment) moves between an E-UTRAN (Evolved-Universal Terrestrial Radio Access Network) based on VoLGA and the traditional GERAN/UTRAN (UMTS Terrestrial Radio Access Network/ UMTS Terrestrial Radio Access Network) and realizes the ISR.

In a UMTS Terrestrial Radio Access Network (UTRAN), a method of switching from a current common channel to a dedicated channel for a UE. The method comprises estimating the round trip delay for data packets travelling between the UE and a peer node with which the UE is communicating. The product of the estimated round trip delay and the bandwidth of the common channel or the dedicated channel is determined and a threshold defined on the basis of that product. A switch from the common channel to a dedicated channel is initiated when the fill level of the RLC buffer(s) in the UTRAN for the UE reaches or exceeds said threshold.

The present invention relates to a router, computer program products and a method in a Universal Mobile Telecommunication System (UMTS). The router resides in an Internet Protocol (IP) based UMTS Terrestrial Radio Access Network (UTRAN) Transport Network. The UTRAN transport network carries Dedicated Channel (DCH) frames on DCHs between a RNC and at least one Node B, wherein the router comprises means for splitting one DCH traffic flow into at least two DCH traffic flows by using an IP multicast protocol.

A method of optimizing the timing offsets with which data frames are transmitted over the Iur/Iub interfaces of a UMTS Terrestrial Radio Access Network, UTRAN. The method comprises, for a given Iur/Iub interface or set of Iur/Iub interfaces over which identical user plane data is to be sent, defining a duration of a data frame receiving window for use by the receiving node(s), transmitting data frames from a sending node with an initial timing offset sufficient to ensure a likelihood that the frames will be received at the or each receiving node within the defined receiving window, reducing the timing offset at the sending node in a stepwise manner, and adjusting the timing offset at the sending node in response to the receipt of late Time of Arrival error reports at the sending node. In a second embodiment, the frame synchronisation of frames corresponding to speech services and data services is carried out by delaying the frames corresponding to speech services a fixed delay and the frames corresponding to data services a variable delay based on a received time of arrival feedback.

The present disclosure relates to a communication method between a terminal and a network during an inter PLMN (public land mobile network) handover in a mobile communication network that shares an E-UTRAN (evolved universal terrestrial radio access network), and a mobile communication system thereof According to the present invention, the terminal performs E-UTRAN registration through a base station (eNB) and an MME (MME), updates a routing area, activates ISR (idle state signaling reduction), receives a handover command to the previous PLMN or another PLMN and transmits a location update request message to the MME while the handover is being executed. As such, a communication disconnect or any authentication or security failure during the inter PLMN handover of the terminal can be avoided.

The invention discloses a terminal access method, network equipment and a communication system, which relate to the field of communication and aim to solve the problem that a plurality of terminals with the same identifier cannot access a network at the same time. The technical scheme provided by the invention is that: when an accessed terminal which has the same public identifier as a terminal to be accessed exists in the network, a control network element acquires the public identifier, serving as shared information of the plurality of terminals, of the terminal to be accessed; and the control network element accesses the terminal to be accessed to the network according to public identifier, serving as shared information of the plurality of terminals, of the terminal and continues to supply service to the accessed terminal. The embodiment of the invention can be applied to communication systems such as a Gsm edge radio access network (GERAN), a universal terrestrial radio access network (UTRAN) or an evolved universal terrestrial radio access network (E-UTRAN) so as to realize application of machine to machine (M2M) and the like.

The invention discloses a timely configuring method and a system of a relay network, which comprise the following step that a relay station carries out corresponding timely configuration of the relay station according to locally-measured timing parameters, or according to the locally-measured timing parameters and timely configuring information of the relay station which is acquired from an evolved-universal terrestrial radio access network (E-UTRAN). According to the timely configuring method and the system of the relay network, the timely configuration of the relay station is realized, the waste of network resources is reduced, and the working efficiency and the system performance of the relay station are improved.

The invention discloses a method and system for updating a report cycle of an MTC (machine type communication) device and an MTC device which is applicable to a UTRAN (UMTS terrestrial radio access network) and an E-UTRAN (evolved UMTS terrestrial radio access network). In the invention, either the MTC device or the network side can modify and determine the report cycle of the MTC device, and the one modifying and determining the report cycle of the MTC device notifies the other one by using a message carrying the report cycle. The network side modifies and determines the report cycle of the MTC device according to the reported data through a core network or MTC device server; or the core network or MTC device server determines the report cycle of the MTC device according to a request for modifying the report cycle of the MTC device; or the MTC device determines the report cycle. Through the invention, the report cycle of the MTC device can be flexibly configured and updated in real time, the MTC device reports data according to the updated report cycle, the electric energy can be saved, and the normal working time of the MTC device can be prolonged as much as possible.

A cell reselection method comprises: after a user equipment UE resident in an evolved universal mobile telecommunications system terrestrial radio access network E-UTRAN sending a request message to a network side and the request message is rejected by the network side, when a designated condition is satisfied, the user equipment disabling an evolved universal mobile telecommunications system terrestrial wireless access E-UTRA capability, and reselecting another network, the designated condition comprising that: a rejection message of the network side carries a packet switched backoff timer and the user equipment locally does not run any circuit switched backoff timer. This application further provides a user equipment. This application is capable of implementing cell reselection of a UE when congestion occurs, so as to avoid the ping-pong effect, improve the user experience, and reduce UE power consumption.

A method of switching from a first to a second transport channel for User Equipment (UE) in a UMTS Terrestrial Radio Access Network (UTRAN) of a UMTS system. The method comprises initiating a channel switch, and initiating a synchronisation of the UE to the second channel. The first channel is maintained during the synchronisation phase such that data may be sent between the UE and UTRAN over the first channel during synchronisation. The first channel is terminated only after synchronisation of the UE to the second channel has been achieved.

The present invention relates to a method and an arrangement for controlling the user plane of a UMTS Terrestrial Radio Access Network, UTRAN, comprising a first edge node connected via a Transport Network Layer to a second edge node, by using Transport Network Layer, TNL, signalling. A radio link is set up by using the Node B Application Part between the first and second edge nodes of the UTRAN, RSVP-TE based TNL signalling messages are transmitted between said first and second edge nodes for each TNL flow, and each TNL flow is identified by using RSVP-TE messages, wherein the object SESSION and SENDER_TEMPLATE comprises an IP based 5-tuple flow information, which is adapted to be used as a TNL flow identity.

The invention provides a dual-mode single-standby voice service continuity realization method and an Internet protocol (IP) multimedia subsystem. The method comprises the following steps that: A, when local user equipment issues a session request from a long-term evolution (LTE) network, a service continuity control application server (SCC AS) in an information management system (IMS) anchors media links of the local user equipment and opposite user equipment onto a media functional processing entity in the IMS; and B, after the local user equipment is switched from evolved universal terrestrial radio access network (E-UTRAN) access to Gsm edge radio access network (GERAN)/terrestrial radio access network (UTRAN) access, the SCC AS updates the media link of the local user equipment to be the media link between a mobile switching center (MSC) Server and the media functional processing entity. By the method and the subsystem, the interruption time of a media plane in the switching of the user equipment from the LTE network to a 2G/3G network can be shortened, and user experiences are improved.

The invention relates to routing redirection method and system for user information query, which are applied to a scene for accessing a 2G/3G (second generation/third generation) user into an EPC (Evolved Packet Core) system by a GERAN (Gsm Edge Radio Access Network) or UTRAN (Umts Terrestrial Radio Access Network). An SGSN (Serving GPS Support Node) passing through when the 2G/3G user is accessed transmits request message for querying user information, identification information carrying the user and the routing information of the SGSN to an HSS (HomeSubscriber Server) of an EPC; after the HSS receives the information, the user is judged to be an unmigrated 2G or 3G user and the request message contains the routing information of the SGSN, an HLR (Home Location Register) for storing the user information is queried according to the identification information of the user, and the request message is forwarded to the HLR; and after receiving the request message transmitted by the HSS, the HLR processes the request message and transmits user information needing to be returned to the SGSN. The invention ensures that the 2G/3G user can be also accessed into an EPS (Evolved Packet System) under the condition of not carrying out data migration and develop businesses.

The invention discloses an intersystem cell switching method, device and system in a packet-switched domain service. The method comprises the following steps: UE (user equipment) confirms that an NAS (network attached storage) process fails in a process of switching to a target access network from UTRAN (Umts Terrestrial Radio Access Network); the UE is switched into the UTRAN again; and the UTRAN is informed that cell switching fails. With adoption of the intersystem cell switching method, device and system in the packet-switched domain service which are disclosed by the invention, the problem that the UE drops as NAS access is unsuccessful when the UE is switched into GERAN (Gsm Edge Radio Access Network) from the UTRAN is solved, system performance is improved, and user experience is improved.