340 results about "Cell Broadcast" patented technology

This invention provides for the use of an index message in a Cell Broadcast Service. An index message is considered to be a special type of Cell Broadcast message which contains general information about actual broadcast messages. The index message is transmitted in a predetermined logical S-BCCH subchannel, and contains information elements such as (a) message overviews or summaries for each cell broadcast message, (b) information concerning emergency messages, (c) information concerning the language used in different broadcast messages, (d) an alphanumeric broadcast domain operator name and a specific operator greeting, (e) information concerning changes in broadcast messages, and (f) information concerning subchannels.

Load redistribution and other benefits may be achieved by dynamically distributing or “steering” idle mobile stations to a particular cell or area. For example, idle mobile stations may be steered from a loaded cell to less loaded cells by changing one or more cell broadcast parameters.

A system and method are disclosed for providing multicast channel handover in a mobile device within a mobile network. First and second transmitters within first and second cells broadcast datagrams associated with a logical identifier according to link-level access parameters common to the first and second transmitters. A mobile device receives the broadcast datagrams for the logical identifier from the first transmitter by configuring the common link-level access parameters. As part of handover from the first cell to the second cell, the mobile device continues receiving the broadcast datagrams from the second transmitter by maintaining the common link-level access parameters. In one embodiment, the datagrams are IP datagrams transmitted in an MPEG2 transport stream. The link-level access parameters may include time slice parameters associated with burst transmissions from the first and second transmitters according to an embodiment of the invention.

A telecommunications system and method for rapid start-up of a Global Position System (GPS) receiver integrated with a mobile terminal is disclosed. The location of a reference GPS receiver associated with a Base Transceiver Station (BTS) within the cell that the mobile terminal is currently located is used as the local position estimate for that mobile terminal. The GSM TDMA frame numbers are first correlated with the GPS clock signal. Optionally, this correlation is adjusted using the adaptive frame alignment mechanism. This local position estimate is used to ascertain the location of the GPS receiver. The correlation data is then sent to the GPS-capable mobile terminal through the Short Messaging Service (SMS) cell broadcast facility or the Broadcast Control Channel (BCCH) facility of the GSM network to enable the built-in GPS receiver to calculate its position relatively quickly.

This invention provides for the use of an index message in a Cell Broadcast Service. An index message is considered to be a special type of Cell Broadcast message which contains general information about actual broadcast messages. The index message is transmitted in a predetermined logical S-BCCH subchannel, and contains information elements such as (a) message overviews or summaries for each cell broadcast message, (b) information concerning emergency messages, (c) information concerning the language used in different broadcast messages, (d) an alphanumeric broadcast domain operator name and a specific operator greeting, (e) information concerning changes in broadcast messages, and (f) information concerning subchannels.

The present document provides a terminal access method, system and a terminal. The method includes: a terminal downloading from an Internet server and storing a network cloud chart containing cell related information, which includes a terminal common air interface configuration parameter of a cell, wherein the terminal common air interface configuration parameter and / or a cell broadcast message includes a first uplink pilot frequency for intelligent access; performing a random access procedure, wherein the first uplink pilot frequency is sent if the network cloud chart stored by the terminal includes the cell related information of the cell to be accessed and the cell related information is valid, otherwise a second uplink pilot frequency for non-intelligent access is sent; and performing a parameter configuration procedure, wherein terminal common air interface configuration corresponding to the terminal common air interface configuration parameter is not performed if the terminal sends the first uplink pilot frequency.

A method for a time division duplex mobile communication system comprises that setting a minimum unit of transmission time interval and a system frame structure, wherein each radio sub frame is composed of a downlink pilot time slot, a switching guard period, a synchronization time slot and a plurality of service time slots, and the transmission time interval uses the length of time slot as a unit; a user obtaining downlink synchronization by receiving downlink pilot information of the downlink pilot time slot, and obtaining corresponding configuration information of cell by reading cell broadcasting information, and then transmitting uplink synchronization information in the synchronization time slot to fulfill a random access process, wherein the configuration information includes transmission time interval and system frame structure information; the network side / the user transmitting call information to an opposite end, and the opposite end processing call acknowledgement according to the transmission time interval; the network side allocating a channel for the user, wherein the network side and the user communicates through the allocated channel. The method reduces data transmission delay during communication, improves call throughout.

Idle mobile stations are steered to a particular cell or service area to accommodate subscriber preferences or restrictions, subscription services, or network operator preferences or restrictions and / or to accomplish load redistribution or other network management functions. Multiple idle mobile station steering factors are considered. Steering may be accomplished using a variety of techniques such as rejecting registration attempts in certain cells and accepting those attempts in others and adjusting cell broadcast parameters.

The present invention proposes a method of making use of Cell Broadcast to support MBMS transfer service announcement or service notification transfer. The method of transferring service announcement comprises the following steps: CBC commands UTRAN connected with it by a signaling message to send service announcement; UTRAN arranges the prescribed time of sending MBMS service announcement message, adds the brief description information to the schedule message and sends the schedule message; after receiving the schedule message, UE configures physical layer thereof to prepare for receiving MBMS service announcement message. UTARN sends MBMS service announcement message at the prescribed time.

In a network having multiple wireless transmitters, a mobile device operating with the network may be assigned one or more wireless transmitters as a virtual cell. Transmissions to the mobile device may be broadcast from several cells simultaneously, so that the mobile device will receive the transmissions in any of the areas covered by the cells. When the network determines that the mobile device is moving out of one cell area and into another, the virtual cell may move as well. The virtual cell may consist of one or many areas covered by a wireless network, and may have a shape that is determined by geography, trajectory, wireless coverage, or other factors.

A system and method for providing a message broadcast service using an open API is provided, which allows a third party information provider to easily broadcast messages to the general public in a specific service area using a Cell Broadcast Service (CBS) of a mobile communication system. A message broadcast application server provides a user interface for composing a broadcast message and defining a service area to a third party information provider. When a broadcast message transmission request is received from the third party information provider through the user interface, a broadcast message transmission request command, a broadcast message transmission request cancellation command, or a status query message is created according to the message broadcast service request, and is then processed by a Cell Broadcast Center (CBC) in the mobile communication system through an open API of a Parlay gateway.

A cell reselection method and system using an active measurement set in a mobile communication, which determines whether the user equipment enters in a power-saving mode based on the signal strength and strength variability of a serving cell and the mobile feature of a user equipment. In the power-saving mode, in accordance with the signal strength of neighboring cells on the serving cell, an active measurement set is formed with cells that are selected from the neighboring cells broadcasted by a WCDMA system and have stronger signals. The user equipment only requires measuring the cells in the active measurement set. Thus, since the cell number of the active measurement set is smaller than that defined by the WCDMA system, the number of neighboring cells required to be measured is reduced, so as to reduce the power dissipation and increase the idle time on the user equipment.

This document describes, e.g., a system and method for minimizing superfluous signaling traffic and for minimizing data processing pressures on a network including a network information repository (NIR), comprising: having mobile stations that enter a network domain compare and detect inconsistencies in network information received through different sources and report those inconsistencies to the NIR; having the NIR update a cell broadcast controller (CBC) / BMSC with said network information; and having the CBC / BMSC broadcast or multicast the updated information.

The invention relates to an implementation method of PDCCH (Physical Downlink Control Channel) total blindness detection in an LTE (Long Term Evolution) system. The method comprises the following steps of detecting power of a control domain CCE (Communication Control Equipment) by UE; dividing the control domain into an occupied area and a non-occupied area; respectively carrying out total blindness detection for the two different areas; after getting PDCCH candidate sets, i.e. the start CCE position and polymerization grade of CCE of two control domains of the two different areas, respectively carrying out CRC (Cyclic Redundancy Check) and DCI (Downlink Control Information) and RNTI (Radio Network Temporary Identity) information decoding, and descrambling and checking CRC by utilizing the RNTI; analyzing to obtain all system and UE dispatch control information in each subframe; saving an RNTI value for quick decoding next time. The method is not limited by unknown RNTI, and does not rely on extra known conditions. As long as a user receives cell broadcast information, i.e. the user successfully detects the PDCCH in any format in each subframe sent to all users , decoding can be carried out any time. A decoding process only relies on a data format standard regulated by a protocol, the RNTI information of the PDCCH received in each subframe can be analyzed, and by utilizing the RNTI information, a decoding manner is optimized, and the transmission performance is improved.

A System Frame Number (SFN) acquisition method is provided. The System Frame Number (SFN) acquisition method of a terminal according to the present invention includes receiving a first message for adding a secondary cell of a secondary base station from a primary cell of a primary base station, receiving a Master Information Block (MIB) broadcast in the secondary cell, and acquiring a SFN information for the secondary cell from the MIB, and applying the SFN information to at least one cell of the secondary base station.

The invention discloses a time slot distribution method of a wireless digital repeater in a communication system of a time division duplex. The time slot emitting a cell broadcast is set. Ports that the wireless digital repeater faces a base station and a mobile terminal respectively are set to emit signals at the same time in the part to which an uplink service channel of the base station corresponds or in the whole time slot. Ports that the wireless digital repeater faces the base station and the mobile terminal respectively are set to receive signals at the same time in the part to which a downlink service channel of the base station corresponds or in the whole time slot. The frame structure of the invention ensures that the access signal between the mobile terminal and the wireless digital repeater can not be disturbed by the signal emitted from the adjacent base station.

A wireless communication system (100) is configured to send signaling messages through a cell broadcast service (CBS). CBS message pages used to transport signaling messages are identified by assigned message identifiers. Mobile devices (114) within the communication system (100) recognize the CBS messages transporting signaling messages by the message identifiers and pass the signaling messages to an appropriate application or control program module. The message identifier may be used to specify the application or control program module to process the signaling message. The signaling messages transported by the CBS may be used in controlling a multicasting or broadcasting service. Duplicate copies of the CBS message pages may be transmitted and then buffered at the mobile device (114) as they are received until all parts of the signaling message have been received.

Apparatus (58), and an associated method, for facilitating delivery of network-specific dialing codes to a mobile node (12). Broadcasts of the network-specific dialing codes are scheduled by a broadcast scheduler 64 embodied at a cell broadcast center (38). Signals containing the codes are broadcast and detected by the mobile node (12), thereby to download the values to the mobile node. And, the downloaded dialing codes are indexed (88) together with the dialing codes normally used by the mobile node (12) to call the corresponding service centers (44). Subsequently, when a call is placed to a service center, the dialing codes are transposed (94), if necessary, to permit the call to a designated service center (44) to be completed.

A communications platform for mobile devices transmits data (such as alert messages) to at least one mobile device user. The platform comprises a server and an alert client responsible for receiving alert messages sent by the server. The alert client may also perform specific functions on a mobile communications device to insure that the alert message does not remain unnoticed or ignored. The platform may further comprise a cell broadcast service server to limit transmission of an alert message to mobile device users in a particular locality or localities.

A system provides push services and information to mobile stations via broadcast messages. The broadcast messages are made on predetermined cell broadcast channels, which are associated with an inbox on the mobile stations. Contained within the messages are Uniform Resource Locators (URL) that, when accessed, provide multimedia and other rich content to the mobile station. The system allows wireless carriers to provide features such as Wireless Access Protocol (WAP) push operations via cell broadcast to many mobile stations in a geographic area without the need to individual address messages to the mobile stations.

A weather forecasting umbrella includes a display device in the umbrella's handle that provides a visual indication of the day's weather, such as the probability of precipitation. The display device may take the form of one or more lamps that emit a color, or flash at a varying rate, to indicate forecast weather conditions. The weather forecast that is displayed is preferably obtained using a wireless receiver built into the umbrella that receives data via a wireless paging or cell broadcast network. A display screen may be used to display forecasted information in more detail, including the likelihood of precipitation and / or the forecast high and low temperature for the day.

A “cell broadcast information accumulation section” which accumulates cell broadcast information received by a “cell broadcast receiver” by relating it to the reception date and time, and especially information of a category for which the distribution area is “only one cell” (regional information). According to the cell broadcast information (especially regional information) accumulated in the “cell broadcast information accumulation section”, the “location judgment section” judges the address of the area where the mobile terminal existed (that is, where the user was present) at the aforementioned reception date and time.

A network approach for aided GPS broadcast positioning where A-GPS data is made available in the network and broadcast via cell broadcast servers to wireless devices in order to reduce the time required to determine the position of a wireless device.

The present invention discloses a transmitting method for community broadcasting service, which can reduce the data volume of CBS information on the radio network control part and at the Iub interface coming from the radio base station to save network resources, simplify thd dispatching course to increas the information volume of community broadcasting through laying a broadcast multibroadcasting physical channel which is parallel to auxiliary public control physical channel to be used for broadcasting service of communit clients. The control module of multi broadcasting will be set in the radio base station and the community broadcasting information will be transmitted to the corresponding radio base station first by radio network control part through the client face of Iub interface and then to dispatch the information to the control module of multi broadcasting corresponding to the community.

The invention provides a D2D (device-to-device) communication resource allocation method as well as base station equipment and user equipment. The D2D communication resource allocation method comprises the steps: step A, allocating the resource to D2D communication users at the network side, to be specific, transmitting the resource to all D2D users who are under a honeycomb communication mode in a quasi-static way through a base station, transmitting the resource by adopting a cell broadcast signal or a special terminal signal, adjusting the configuration resource according to the application situation reported by the D2D users, and updating the allocation of the resource. By adopting the D2D communication resource allocation method, the simultaneous transmission of the D2D communication and honeycomb communication can be guaranteed, the interference between the two communication ways also can be alleviated, the reliability of the D2D communication among cells can be guaranteed, the transfer interference between D2D pairs or D2D groups can be alleviated, the detected physical resource blocks can be further reduced for a control channel in the D2D communication through the instruction of the network side or cells, and the complexity of a terminal for realizing the D2D communication can be reduced.

Load redistribution and other benefits may be achieved by dynamically distributing or “steering” idle mobile stations to a particular cell or area. For example, idle mobile stations may be steered from a loaded cell to less loaded cells by changing one or more cell broadcast parameters.

The present invention discloses a method for triggering communication between a group of MTC devices and an MTC server, and an MTC device. The method includes: receiving an MTC request message sent by a machine type communications MTC server, where the MTC request message carries a group ID of the group of MTC devices and a communication notification message for the group of MTC devices; obtaining area information of the group of MTC devices; and sending the area information, the group ID of the group of MTC devices, and the communication notification message for the group of MTC devices to a cell broadcast center CBC, so that the CBC sends a broadcast message to a device in an area, where the broadcast message includes the group ID of the group of MTC devices and the communication notification message for the group of MTC devices.

The embodiment of the invention discloses a method, device and system for inquiring sensor data. The method comprises the following steps: obtaining the data of base station and sensor corresponding to target data; according to the data of base station and sensor, requesting cell broadcast center corresponding to base station to transmit cell broadcast to the intelligent terminal within the coverage area of base station so as to inquire the target data; and receiving the query result of the target data which is obtained by the sensor and is returned from the intelligent terminal. The technical scheme of the invention can be used to ensure that the intelligent terminal in network is used as sink node to collect sensor data, the network deployment cost is reduced and the effect of collecting sensor data instantly can be realized.

The invention provides a data transmission method and device for vehicle communication, a base station, and network side equipment. The method comprises the steps: receiving vehicle communication data transmitted by a transmitting terminal; judging which one of a unicast mode and a broadcast mode is used for transmitting vehicle communication data according to the number of receiving terminals for receiving vehicle communication data or prompt information transmitted by the transmitting terminal; directly transmitting the vehicle communication data to the receiving terminal in a unicast mode when the unicast mode is determined to be employed for transmitting the vehicle communication data; determining a needed broadcast range of the vehicle communication data when the broadcast mode is determined to be employed for transmitting the vehicle communication data, and carrying out the transmission of the vehicle communication data in a mode of single-cell broadcast or multi-cell broadcast according to the needed broadcast range of the vehicle communication data. According to the technical scheme of the invention, the method achieves the support for a V2V transmission mechanism based on a Uu interface, and can achieve high-efficiency V2V communication saving the transmission resources.

The invention discloses a method supporting user equipment (UE) handover. Public land mobile networks (PLMN) broadcasted in a target community are filtered through the UE, and a proper PLMN in the filtered PLMNs in a source base station is selected for the UE to finish the handover process. Or a content service gateway (CSG) which the UE can be access to is learned in the source base station, and an identification data (ID) list of all PLMNs broadcasted in the target community, a registered (r) PLMN and an equivalent (e) PLMN of the UE are learned, and therefore the proper PLMN for the UE is selected to finish the handover process. Or after learning the ID list of all the PLMNs broadcasted in the target community, the ID list of the PLMN where the ID in all the PLMNs broadcasted in the target community is the r-PLMN or the e-PLMN of the UE is informed to a multiple media expansion (MME). The PLMN for the UE is selected by the MME to finish the handover process. Or after learning the ID list of all the PLMNs broadcasted in the target community at present through the source base station, the MME is used to select the PLMNs, and the source base station is used to select the PLMN serving the UE to finish the handover process. Through utilization of the method supporting UE handover, failures in the handover process can be avoided, and continuity of businesses is guaranteed.