18 results about "Handover" patented technology

The invention provides a method of handover from an active network to a selected one of a plurality of potential other networks. In addition to the overall solution, the solution proposed has several individual aspects. All subsidiary aspects are related to the common problem mentioned above and sharing the underlying common solution concept of implementing a system in which selective handover is possible and in which a list of available other networks provided by an active network can be handled and selection made by a terminal, so that neighbor cell information can be transmitted based on expressed terminal preferences.

A radio communication apparatus includes: a transmitting section for transmitting a request message to a first cell and a second cell; a first combiner for demodulating a first common control channel transmitted from the first cell; a second combiner for demodulating a second common control channel transmitted from the second cell; a baseband controller for starting the first and second combiners, and for controlling the combiners into a state in which the combiners can demodulate the first and second common control channels simultaneously; and a radio communication controller for receiving a response message to the request message contained in one of the first and second common control channels. The radio communication apparatus can receive the response message contained in the common control channels positively even in a handover area where cell switching can occur frequently, and can improve the stability of the communication.

When a connecting destination base station apparatus included in a message including an identifier of a base station apparatus serving as a connecting destination of a mobile station apparatus is different from a connecting source base station apparatus stored in an EPS bearer context, rearrangement of local PDN connection is requested to an L-PGW unit of the connecting destination base station apparatus and local PDN connection is deleted. After establishment of a wireless bearer is completed between the mobile station apparatus and the connecting destination base station apparatus, the connecting destination base station apparatus is instructed to start proxy transmission of neighbor advertisement instead of the mobile station apparatus. In base stations that support local IP access, when UE performs service request processing or handover processing between home base stations, it is possible to continue communication session using local IP access while suppressing alterations to existing system to the minimum.

The invention discloses an FPGA implementation method of a multi-channel data source DDR buffer, including: hanging a plurality of DDR granules with the FPGA, randomly configuring the number of channels, and then arbitrating the DDR reading and writing of each channel, wnerein the arbitration rule is an arbitration rule through polling or matching the bandwidth. The invention buffers the data of each channel to the address space corresponding to each channel of the DDR, the address space size of each channel can be arbitrarily divided, the total address space size is the sum of the memory space of each DDR granule, and the channel data and the DDR are respectively transferred through asynchronous fifo. The invention flexibly and efficiently uses a plurality of DDR granules to carry out read-write arbitration on each channel, can carry out handover on the terminal domain channel when expanding a plurality of asynchronous clocks, flexibly matches the address space mapped by the cache DDR, and centralizes the cache data bandwidth of the plurality of DDRs to cache the arbitrated channel.

A method of determining a radio link failure associated with a handover of a user equipment from a source access node to a target access node includes acquiring a first information about a time associated with the user equipment communicating with an access node for establishing a connection associated with the handover and a second information indicating the access node with which the user equipment communicates for establishing a connection subsequent to the radio link failure, and determining the radio link failure based on the acquired first and/or second information.

A bridge-based cellular Ethernet system and a handover processing method therefore are provided. In the bridge-based cellular Ethernet system, an HLR manages configuration information about network entities, and a plurality of Base Station Bridges (BSBs) are connected to a plurality of Base Stations (BSs), each BSB including a layer 2 switch, and a plurality of SCBs connected to part of the BSBs under the SCBs. Each SCB includes a layer 2 switch forming a core network, and SCB monitors the signal power of a Mobile Node (MN) within its service area, determines whether the MN is to move to another site, selects a new SCB to which the MN is to move, sends necessary path information to associated SCBs and the HLR, for setting of the path information in the associated SCBs and the HLR, and commands a handover to the MN.

The present invention proposes a method and corresponding apparatus for coordinating the executions of intra-radio handover, wherein the method comprising determining an intra-radio handover is to be executed on a communication device; and coordinating the execution of the intra-radio handover to determine whether to postpone the execution of the intra-radio handover, so that there is at least one active radio on the communication device.

In systems and method of determining a reordering timer in a wireless communication network, when it is determined that a packet reordering of a plurality of data packets meets a reordering threshold, a handover probability that the wireless device will be handed over to a second access node is estimated based on a first congestion metric of the first access node and a second congestion metric of the second access node. The plurality of data packets is examined to determine application requirements of an application of the wireless device. Based on the handover probability, the application requirements and the second congestion metric, a reordering timer is determined for use by the second access node.

A technology is disclosed providing a crossover node detection pre-processing method and the like in which, when a MN performs a handover and detects a CRN, a layer, among an aggregation overlapping such as to be nested (a plurality of network layers), up to which a process for detecting the CRN is performed is decided and a number of layers from the outermost layer of the aggregation to the decided layer is decided. As a result, the CRN detection is not time-consuming, double reservation can be kept to a minimum, and QoS failure can be avoided. The technology includes a step of deciding, by a mobile node 10, a network layer, among a plurality of network layers overlapping such as to be nested, up to which the process for detecting the CRN is performed and deciding a number of layers from the outermost network layer of the plurality of network layers to the decided network layer, and a step of generating a message including information on the decided number of layers.

A radio communication system includes a terminal and a base station that reports power information in that base station to the terminal. The base station includes: a report period control unit that controls the period of reporting power information in its own base station to be a first period during normal operation and, when its own base station is the handover target of the terminal, controls the report period to be a second period that is shorter than the first period in a fixed interval that follows completion of a handover preparation phase in which a data path for the terminal is generated with a network; and a report unit that reports power information in its own base station to the terminal at the controlled report period.

Provided are apparatus and method for processing MBS data. The method for receiving multicast/broadcast service (MBS) by a user equipment (UE) may include, when handover is determined, receiving, through a source base station, radio bearer configuration information for receiving MBS session data through a target base station, configuring a radio bearer for receiving the MBS session data through the target base station based on the radio bearer configuration information, and receiving the MBS session data through the radio bearer. The radio bearer configuration information is information generated by the target base station and transmitted to the source base station.

A data processing method and apparatus is disclosed by the embodiments of the present invention. The method includes the following steps: on demand of handing over to a target system with different numbering ways of PDCP sequence numbers, determining the PDCP data packets waiting for being re-numbered; then re-numbering the PDCP data packets waiting for being re-numbered, and enabling the re-numbered PDCP sequence numbers to be in the support range of the target system. The embodiments of the present invention enable UE to implement lossless handover when handing over among the different systems with different numbering ways of PDCP sequence numbers.