15 results about "Mobile communication systems" patented technology

An apparatus and method are provided for performing scheduling in a Node B for data transmission of a user equipment (UE) in a mobile communication system supporting an enhanced uplink dedicated channel (E-DCH). The Node B receives, from a radio network controller (RNC), scheduling assistance information for an uplink service to be provided from the UE. The Node B estimates a data amount for the uplink service on the basis of the scheduling assistance information in each scheduling period. The Node B schedules data transmission for the uplink service according to the estimated data amount.

A method for grouping a control channel resource in an Orthogonal Frequency Division Multiplexing based mobile communication system for adjusting inter-cell interference and an apparatus performing the same are disclosed. Inter-cell inference used between cells or base stations is controlled or distributed to secure reception of a control channel in a heterogeneous system, and interference may be efficiently controlled through coordination of resource groups by cells. The method and apparatus are equally applicable when resources of backhaul transmission channel of a relay cell in a cell are grouped.

A mobile communications system including a mobile terminal 1 and a base station 2 which relays communications between a network and the mobile terminal 1, in which the base station 2 can deliver information to the mobile terminal 1 by using an MBMS, in which the base station 2 sets a flag indicating presence or absence of emergency information to a control channel used for the MBMS, and notifies the presence or absence of the emergency information to the mobile terminal 1 by using the description of the flag set to the control channel for the MBMS.

A mobile communication system that supports Device to Device (D2D) communications, comprises: a base station that notifies a plurality of user terminals of a D2D common RNTI that is a radio network temporary identifier (RNTI) which is common in the plurality of user terminals, and that is used to collectively transmit, to the plurality of user terminals, a D2D control signal for controlling the D2D communications.

A mobile communication system with a packet switching function which enables sharing of radio resources among mobile stations, wherein a mobile station which has generated a request for communication quality assurance periodically sends a packet for requesting preferential use of a radio channel in order to prevent timeout of the state transition timer, timeout of which would cancel radio channel assignment to the mobile station and bring it into a dormant state if a certain period elapses without transmission or reception of a signal, so that it can remain in the active state and hold the radio channel continuously. In addition, when the mobile station requesting communication quality assurance moves from one cell to another or requests radio channel assignment, the base station controller controls the radio base station so that the mobile station can be assigned a radio channel by sending a priority request packet.

A transmitting unit divides a transmit data into a plurality of code blocks, and encodes each of the plurality of code blocks to generate a transmission signal. The transmitting unit transmits the transmission signal, and a receiving unit receives the transmission signal as a reception signal. The receiving unit receives performs an iterative decoding to each of the plurality of code blocks of the reception signal. The iterative decoding is terminated to a first code block group in which an error has not been detected before a first setting iteration count. The receiving unit, when being an error in the reception signal, transmits a retransmission request feedback data which contains a NACK data and a data indicating the first code block group to the transmitting unit. First resources are assigned for each of the plurality of code blocks of the transmission signal. The transmitting unit assigns resources of the first code block group of the plurality of code blocks of the transmission signal to second resources which are fewer than the first resources, based on the retransmission request feedback data, and retransmits the transmission signal to the receiving unit.

In a mobile communication system in which a plurality of component carriers are used, transmitting and receiving control information of HARQ effectively is realized. In a mobile communication system in which a base station apparatus (100) sets a plurality of downlink component carriers for a mobile station apparatus (200), the base station apparatus (100) transmits a downlink transport block to the mobile station apparatus (200) on one or a plurality of downlink component carriers among the plurality of downlink component carriers, and the mobile station apparatus transmits, to the base station apparatus (100), control information of HARQ for the downlink transport block on any one of physical uplink control channel resources corresponding to the one or plurality of downlink component carriers on which the downlink transport block has been transmitted.

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 a rectangular waveguide covered with a dielectric layer in the technical field of communication cables. A waveguide structurally comprises the rectangular waveguide and the dielectric layer, wherein the dielectric layer is arranged on the rectangular waveguide; the wall of the rectangular waveguide is provided with a slot array formed by a plurality of slots at uniform intervals along the axis direction. The dielectric layer is added on the rectangular slot waveguide, and the electric field intensity of a working area on the surface of the rectangular slot waveguide is obviously improved; the divergence degree of an electromagnetic field is reduced; meanwhile, proper thickness and dielectric constant of the dielectric layer are selected, and the radiation intensity of a working area of a rectangular slot waveguide cable can be controlled. The rectangular waveguide can be applied to a communications based train control (CBTC) railway mobile communication system, the near field intensity on the upper side of the rectangular slot waveguide is improved, the space convergence of an electric field is improved, and the system has the best working condition.

A method and apparatus for simultaneous voice and data (SVD) service in mobile communication system are disclosed. SVD service can be provided by designating a new voice RLP frame type and adding the new voice RLP frame type in the RLP frame transmittal standard for packet data in CDMA mobile communication system. Further, by designating the new SVD service option or additional signaling message exchange, the signaling procedures or multiplexing and de-multiplexing procedures used for SVD service can be simplified. Thus, mobile terminals and base stations, which could not provide SVD service, can be enabled to provide SVD service by performing SVD call processing between mobile terminals and base stations with only one service option.

The invention discloses a method for processing a mobile communication system, a terminal, network equipment and an emergency call. The method comprises the following steps that: a mobile terminal obtains an emergency call type selected a user; the mobile terminal transmits a message carried with the emergency call type to mobile communication network; the mobile communication network receives the message; the mobile communication network routes the emergency call to an emergency service center corresponding to the emergency call type. Adopting the method for processing a mobile communication system, a terminal, network equipment and an emergency call in the invention the user can make an emergency call conveniently when in an assigned country or roaming in a country.

The method includes following steps: mobile positioning center receives positioning request; mobile positioning center sends request information to home location register (HLR) registered by corresponding mobile terminal requesting positioning service, the request information requests address of mobile exchanging center at location the said mobile terminal roams at; mobile positioning center sends positioning request to corresponding positioning entity; positioning message interaction is carried out between positioning entity and mobile terminal so as to calculate position information of mobile terminal; positioning entity sends position information to mobile positioning center. In the invention, mobile terminal is in area covered by GPS satellite data. The invention raises positioning precision and success ratio.

The invention belongs to the technical field of microwave antennas, and discloses a quaternary GPS anti-interference antenna array loaded with a director and a mobile communication system, the quaternary GPS anti-interference antenna array loaded with the director is provided with an antenna cavity, the antenna cavity is provided with a microstrip antenna array, and antenna units are tightly fixed by screws with the diameter of 2.5 mm. The quaternary GPS anti-interference antenna array loaded with the director is simple and compact in structure, the problem that miniaturization and high performance of a current GPS anti-interference antenna are difficult to achieve at the same time can be solved through combination of antenna unit array design and the director, and therefore the quaternary GPS anti-interference antenna array loaded with the director can be widely applied to a GPS anti-interference antenna system needing miniaturization. According to the director designed by the invention, the gain of the antenna of the corresponding frequency band is improved under the condition that the antenna of other frequency bands is not greatly influenced, the axial ratio of the corresponding antenna is improved, meanwhile, the director is compact in structure and easy to install, and the overall performance of the quaternary GPS anti-interference antenna is ensured.