160results about How to "Good switching effect" patented technology

A system and method for supporting handovers between different radio access technologies is provided. A method for communications device operations includes sending a request to a controller of the communications device to change an operating mode of the communications device, and receiving a transmission responsive to the request. The method also includes in response to determining that the controller has granted the request to change the operating mode and that the communications device is operating in a border cell, changing the operating mode of the communications device, tuning at least one receiver of the communications device to an alternate radio access technology (RAT), and initiating a handover with the alternate RAT.

A method and apparatus are provided where a neighbor cell interference signal is canceled upon receiving a signal transmitted from a serving base station (BS) in a receiver of an Orthogonal Frequency Division Multiple Access (OFDMA) system. The interference signals are detected from signals received from neighbor BSs and a serving BS. The strength of the detected interference signals is measures, and a determination is made whether the measured strength is higher than a threshold value. A list of neighbor BSs satisfying the determination result is reordered, and interference signals in order of the reordered neighbor BSs are selected and detected. An interference/noise variance for the detected interference signal is calculated and normalized. The normalized interference signal is decoded and regenerated, and the regenerated interference signal is subtracted from the received signal.

According to an embodiment, an apparatus such as a femto base station may include a transmitter to send via a local network an information to a mobile network for informing on an active state of apparatus. The apparatus may be configured to send the information when being switched on, or on a periodical or repeated basis in a switched-on state of the apparatus. A macro base station may add the femto base station to a network configuration list. Respective methods are also provided.

A method is provided for controlling uplink data traffic in a wireless communication system. If Internet Protocol (IP) packets are received from a higher layer, one or more medium access control service data units (MAC SDUs) are generated in units of sub-blocks. A modified packing sub-header (PSH) used for distinguishing between the MAC SDUs is added to the generated MAC SDUs. MAC SDUs having the same connection identifier (CID) among the modified PSH-added MAC SDUs are grouped. A modified MAC header (MH) used for distinguishing between the MAC SDU groups is added to generate one or more tunnel messages, and the generated tunnel messages are grouped. A tunnel frame header used for distinguishing between the tunnel messages to generate a tunnel frame is added thereto. The generated tunnel frame is transmitted to a base station.

According to the present invention, a method of performing coordinated multi-point transmission and reception in an overlaid cellular system in which a first base station and a second base station overlay each other, the method comprising performing a handover using a coordinated multi-point transmission and reception scheme based on CRS-RS (Channel State Indicator-Reference Signal) information of user equipment by the first and second base stations.

The invention discloses a wireless network, which comprises wireless communication systems of different standards. In addition, the wireless network comprises a different network coordinating device which is used for the coordination and switching between wireless communication systems of different standards or the coordination and process of a plurality of attachments to user equipment. The invention further discloses a corresponding user equipment switching and attachment method, which can provide convenient intersystem intercommunication, attachment, and optimized switch performance on the premise of keeping the access system standards developing independently and reducing the cross linkage.

The invention discloses a neighboring-area message routing method and a message routing method. The neighboring-area message routing method comprises the following steps: a base station transmits messages containing neighboring-area messages to a terminal, wherein the neighboring-area messages carries parameter messages of each base station in a reference base station set, and each base station in the reference base station set is a base station which allows the access of the terminal. By virtue of the technical proposal, the relevant messages of each base station capable of providing service to the terminal are transmitted to the terminal through the base station, thereby solving the problems of large expense on the system control and long scanning time of the terminal. The invention can improve the switching performance of the system and reduce the energy loss of the terminal.

The invention discloses a method for regulating a discontinuous reception cycle. The method comprises the following steps of: determining a service activity by a node B evolved base station (eNB) through a data packet arrival rate of service data; reporting mobile state information to the eNB by user equipment (UE); and configuring a discontinuous reception (DRX) cycle by the eNB depending on the service activity and the mobile state information. Through the application of the embodiment disclosed by the invention, the DRX cycle is precisely configured, waste of UE power is reduced and switching performance is improved.

A method, device and system for implementing optimized inter-RAT handover are disclosed. When a user equipment or a source network prepares for a handover to a target network, a corresponding target network ID is obtained from a configured mapping between cell IDs and target IDs according to a received cell ID, target network bearers are established following identification of an access node of the target network, and the user equipment is connected to the target network after handover preparation is complete. With the present invention, when a user equipment is handed-over from a source network to a target network, service continuity can be maintained with an enhanced quality of user experience.

The invention discloses a report set measurement and trigger measurement report based method. The method comprises the following step of: after user equipment (UE) receives a measurement control parameter from a network element (NE) of a network side, establishing a report set according to the measurement control parameter and measuring a cell in a monitoring set. The invention also discloses a report set measurement and trigger measurement report based system which comprises a report set establishing unit and a measuring unit, wherein the report set establishing unit is used for establishing the report set according to the measurement control parameter, and the measuring unit is used for measuring the cell in the monitoring set according to the measurement control parameter. The invention also discloses UE applying the method, which comprises a report set establishing unit and a measuring unit, wherein the report establishing unit is used for establishing the report set according to the measurement control parameter, and the measuring unit is used for measuring the cell in the monitoring set according to the measurement control parameter. By adopting the method, the system and the UE, UE measurement and UE trigger measurement reports can be accurately reported in time.

The invention discloses a multi-function wireless access equipment and a wireless access method thereof, wherein the equipment comprises a voice gateway function unit, a data gateway and transmission interface unit, a power supply and equipment control unit and a multi-function wireless access unit. The voice gateway function unit is connected with the multi-function wireless access unit and the power supply and equipment control unit, and is connected with a remote PSTN switch by a transmission medium; the multi-function wireless access unit is connected with the voice gateway function unit, the power supply and equipment control unit and the data gateway and transmission interface unit; and the data gateway and transmission interface unit is connected with the multi-function wireless access unit and the power supply and equipment control unit and is connected with a broadband remote access server (BRAS), a macro network core-network and other wireless access networks through a transmission network. The multi-function wireless access equipment has the multi-function wireless access unit which can provide macro network wireless access network function, micro network function, wireless telephone function and wireless gateway function.

The invention discloses a CDMA soft handover method which can be used in present code division multiple access systems. The invention preserves current soft handover mechanisms triggered by a pilot signal strength variation measured by a mobile station. At the same time it introduces a communication quality indication parameter—continuous error frame indication measured by mobile station. Both function together to launch and to activate system soft handover. Without changing present soft handover processes, soft handover performance is improved, possibility of lost conversation is decreased and communication quality is raised.

A multiple LMA selection method in the mobile node switching process in the PWIPv6 domain is provided, wherein an N-MAG transmits the specific IBU message to the all LMAs in one PWIPv6 domain via respectively spreading the PBU message and the PBA message between the MAG and the LMA when the MN is switched from the p-MAG to the n-MAG, only the LMA preserving the MN previously bound information can update the MN bound information according to the content of the IBU message, and transmit the corresponding IBA message, other LMA can not echo, the n-MAG finally set up the binding relation for the identical LMA selected by the MN so as to ensure that the MN is all bound with the same LMA before and after the MN switching, thus solving the problem of the re-authentication of the AAA server, keeping the AAA information availability and service continuity, and optimizing the MN switching performance. The method can not spread the other protocol, has little change for the present message format and the process flow of the PMIPv6, and can not depend on the other external structure added method, with simple, convenient and easy operation steps.