92 results about "Access network controller" patented technology

The invention discloses a method for double transmission mode switching between general access network and other access network, establishing user data link in both circuit switched domain and packet switched domain for terminals by general access controller, and processing switching operation between circuit switched domain and packet switched domain related to the same terminal. The invention also provides general access network controller suitable for the mentioned method. The invention makes mobile terminal which can carry out service in both circuit switched domain and packet switched domain freely surf the wireless core network with different access technology, improves user's mobility and service feeling.

A synchronization apparatus and method in a mobile communication system. The apparatus and method include measuring transmission delay time by a Packet Control Function (PCF) or an Access Network Controller (ANC) by exchanging packets with each ANTS, and selecting via the PCF or the ANC the longest transmission delay time of the measured time as an initial wireless transmission time, transmitting by the PCF or the ANC the wireless transmission time of the packet to said each ANTS together with packets, calculating a packet waiting time, which is a difference between the time at which said each ANTS has received the packets and the time at which the corresponding packets has been actually transmitted wirelessly, and reporting the calculated packet waiting time to the PCF or the ANC, and updating via the PCF or the ANC the wireless transmission time of next packets by means of information for the packet waiting time from each ANTS, and transmitting via the PCF or the ANC the updated wireless transmission time to the ANTSs.

A method and system for handover of a mobile station (MS) to an unlicensed mobile access network controller (UNC) in an unlicensed mobile access network (UMAN). In one embodiment, the MS sends an unlicensed mobile access (UMA) radio resource (URR) Registration Request message to the UNC with one or more location identifiers for the MS. The location identifiers may include a GSM Cell Global Identity, an access point (AP) Radio Identity, a set of GPS coordinates, or an AP location. The UNC selects absolute radio frequency channel numbers (ARFCN) and base station identity codes (BSIC) values from a table based on the location identifiers and returns them to the MS in a URR Registration Accept message.

A method and system wherein a Voice over LTE via Generic Access (VoLGA) Access Network Controller (VANC)1 upon receiving a REGISTER and REGISTER UPDATE message from the UE1 notifies a Hand Over Selection Function node (HOSF) that a user equipment (UE) is registered in the VANC. This will only be done if the HOSF has not theretofore been notified.

In cellular mobile networks handover between base stations of adjacent cells requires the identity, address and frequency of all adjacent cells to be known to other elements of the network. Conventional networks (e.g.cellular networks) can be extended by the addition of unlicensed-radio access networks. Said unlicensed networks can include an access network controller preferably connected via a broadband network to a plurality of low-power local base stations, which communicate with mobile stations over an unlicensed radio interface. The number and changing location of the local base station renders the operation and maintenance required to enable handover from the conventional network to these access networks prohibitively complex. This difficulty is alleviated by assigning to all the mini-cells of the unlicensed network a single identifier being said single identifier associated to the access network controller. With this arrangement regardless of which base station mini-cell an active call is being handed-over to, the conventional network will be able to route the request to the access network controller.

The present invention provides a method and architecture on how mobile stations (MS) are provisioned about information of an unlicensed mobile access (UMA) network controller (UNC). The UNC in accordance with the present invention provides three different logical roles (i.e., provisioning, default and serving). More specifically, the present invention provides a method for assigning a mobile station (MS) to an unlicensed mobile access (UMA) network controller (UNC) in an unlicensed mobile access network (UMAN). The MS is connected to a provisioning UNC and discovers a default UNC. A serving UNC is then determined to assign the MS to and the MS is assigned to the serving UNC. The serving UNC can be the default UNC, the provisioning UNC or another UNC.

The invention discloses a grouping switch method which essentially means that a judgment step on executing a switch condition is added to a switch process and the current switch initiating or executing is controlled via a pre-placed switch condition. The judgment step may be carried out at any time before the completion of a switch by any related node of the switch like a mobile station, a base station controller or a universal access network controller, etc. The invention avoids an unusual backward and forward switch between the cells according to the judgment of unusual performance by the pre-placed switch condition, and reduces the signaling flow, thereby improving the stability of the service.

The invention discloses a method for mobility management, comprising the following steps: a universal access network controller receives indication information sent by a mobile station; and the universal access network controller selects a mode of the universal access network according to the indication information. The invention also discloses a system and equipment of mobility management. In the embodiment of the invention, when registration between GERAN/UTRAN and GAN is initiated, a user terminal can preferably select different GAN modes according to the own network to carry out registration or select an expected GAN mode to carry out registration, thus being capable of optimizing the network resource.

An Unlicensed Mobile Access Network Controller (UNC) and method for providing an early indication of service failure to a mobile station registered with the UNC. When the UNC detects a network failure that prevents service to the mobile station, the UNC prohibits new registrations by other mobile stations, starts a timer, and monitors the network failure to determine if the failure clears. If the failure clears before the timer expires, new registrations are accepted from other mobile stations. However, if the timer expires before the failure clears, the UNC continues to prohibit new registrations from other mobile stations, and deregisters the mobile station when a network Keep Alive timer expires for the mobile station. When a plurality of mobile stations are registered with the UNC, the UNC deregisters the plurality of mobile stations one at a time as the network Keep Alive timer expires for each mobile station.

The invention discloses a method for monitoring packet transmission channel in the switching process between access network sub-districts and other sub-districts using random access techniques. In the packet transmission channel switch process, the terminal or universal access network controller triggers the releasing protection operations to packet transmission channel, thereby avoiding the release of packet transmission channel. The invention also discloses the corresponding terminal and universal access network controller. Since the invention logically links together the packet transmission channel switch process and the monitoring of the packet transmission channel, the packet transmission channel will not release beforehand in the switching process, and the terminal can smoothly and timely come back in the source sub-district for avoiding service jitter when abnormity occurs in the switching process.

The present invention proposes a method for performing a relocation procedure for a user equipment (UE) communicating in a communication network and being movable therein, said communication network comprising at least two serving nodes (SGSN1, SGSN2) of a core network of said communication network, each of which serving nodes being connected to at least one access network controller (RNC1, RNC2) of a access network of said communication network, each of which access network controllers being adapted to perform a communication with said user equipment (UE) within its coverage area, and each serving node being assigned to a respective routing area (RA1, RA2), said method comprising the steps of monitoring (S100) the occurrence of a relocation condition, deciding (S200), whether said relocation condition is an inter serving node relocation condition, switching (S400) the communication from a first access network controller (RNC1) of a first serving node (SGSN1) to a second access network controller (RNC2) of a second serving node (SGSN2), when the decision in said decision step (S200) is positive; maintaining (S600) the control of communication in the core network anchored in the first serving node (SGSN1) while the communication connection is in a first state (S500); and changing (S700) the control of communication in the core network to the second serving node (SGSN2), when a changing condition is detected (S500). The present invention also proposes a corresponding system and network element.