Class / Patent application number | Description | Number of patent applications / Date published |
370340000 | Using trunking | 23 |
20080247373 | MULTICAST PUSH TO TALK GROUPS, APPARATUS, AND METHODS - A terminal (such as that belonging to or carried by an emergency first responder, for example) participates in a push to talk multicast group in either of two modes or levels. In a first mode or first level of participation, the terminal can join a multicast address for the push to talk multicast group as a passive recipient of transmissions and can thereby listen to the multicast address. In a second mode or second level of participation, the terminal becomes an active participant in the push to talk session. As an active participant in the push to talk session, the terminal can, e.g., receive sender identification (e.g., identification of other participants who may be talking in the push to talk multicast group) and send media bursts to the multicast group. | 10-09-2008 |
20080285532 | Floor Control for Multimedia Push-To-Talk Applications - The invention relates to a Push-to-Talk application enabling the transmission of different types of content, for example voice content and video content. In Push-to-Talk applications, only one user of a group can talk at a time and a floor control procedure is used to control access to the floor by the users of the group. According to the invention, separate implementations of the floor control procedure are used with the framework of one single session for managing access to the floor for the transmission of different types of content. For example a first implementation of the floor control procedure is used to manage floor access for the transmission of voice content and a second independent implementation of the floor control procedure is used to manage floor access for the transmission of picture content. | 11-20-2008 |
20080285533 | NEIGHBOURING DEVICE AID IN RECEIVING SETS OF DATA - According to one embodiment, a first wireless communication device may receive a data file via a first wireless network interface, determine if the whole file has been properly received, receive at least the data of the file that have not been properly received via the first wireless interface from a neighboring second wireless communication device and combine the data received via the first wireless network interface with data received from the neighboring wireless communication device in order to obtain the complete file. The second wireless communication device may also receive the data file via a second wireless network interface and send at least the data of the file that have not been properly received over a neighbor device interface. | 11-20-2008 |
20080316991 | Control Method for Reaccessing After the Terminal in the Trunked System Has Existed the Group Call - The present invention relates to a control method for re-access after the terminal in the trunking system exits the group call, which includes the following steps: it is to maintain one message number for every group call for updating and send the message number to the terminal when the call is established, and the terminal retains the message number after accessing the call; the terminal sets the exit symbol as “unable to passively access” when it exits the call normally, and as “able to passively access” when it exits the call abnormally; after the terminal has received periodically transmitted paging message in its idle state, it judges whether the exit symbol of the corresponding group is the type of “able to passively access”, if yes, it accesses the call and then the procedure end; if the exit symbol is “unable to passively access”, then the terminal judges whether the message number retained in the group is the same as the message number in the paging message, if not, it accesses the call, otherwise discards the paging message. According to the present invention, the terminal will not passively re-access the call because of receiving the periodical paging message after normally exiting the call, and at the same time, the terminal can re-access the call after abnormally exiting the call. | 12-25-2008 |
20090003300 | DYNAMIC EXPANSION OF A FRAME SELECTION INTERVAL IN A WIRELESS COMMUNICATION NETWORK - Methods and systems are provided for dynamically expanding and retracting a frame selection interval in a wireless communication network. A frame selector receives a sequence of frames for a call from each of a plurality of base stations serving a mobile communication device for the call, and performs a frame selection process based on an initial selection interval to select a best frame from the sequence of frames received from each of the base stations during each instance of the initial selection interval. The frame selector is adapted to track the presence and absence of late or early frames, and uses this information to dynamically expand the frame selection interval when late or early frames are detected. The frame selector then performs the frame selection process based on the expanded selection interval to select the best frame from the sequence of frames during subsequent instances of the expanded selection interval. | 01-01-2009 |
20090092116 | Trunking System for CDMA Wireless Communication - Methods and systems for implementing trunking techniques in CDMA systems for handling group calls and push-to-talk services. | 04-09-2009 |
20090245218 | Media gateway preferential routing circuit allocation techniques in UMA - The present invention provides for giving preference to a specific media gateway in the selection of the next circuit so that in a multi-media-gateway soft-switch where a call may take any of many possible paths, an outgoing circuit on the same media-gateway as the incoming circuit is preferably selected, so if one is available, the need for using more bearer ports on media gateways to bridge the two sides is eliminated. Instead of interconnection, the same facilities can be provisioned to the bearer interface between the soft-switch and the rest of the network. This invention maximizes the bearer capacity of a distributed media gateway for external network access. | 10-01-2009 |
20140233555 | Method for Managing Access to a Shared Communication Medium - The methods for managing access to a communication medium shared by a plurality of radio communication devices. The method of accessing a radio communication medium shared between a plurality of communication terminals. The method is based on a variant of the CSMA/CD access protocol. The method is based on monitoring of the medium and the emission of a token to request permission to emit. The terminals that receive this token then emit an acknowledgement intended to signal that the medium can be used, or a collision message if they receive a plurality of tokens simultaneously. In the latter case, the emitter retries its attempt to use the medium later on. | 08-21-2014 |
20150305007 | METHOD AND APPARATUS FOR FREQUENCY ALLOCATION IN A TRUNKED RADIO COMMUNICATION SYSTEM - A wireless communication system ( | 10-22-2015 |
20160099861 | SYSTEMS AND METHODS FOR PERFORMING LAYER ONE LINK AGGREGATION OVER WIRELESS LINKS - A first layer one link aggregation master comprises a first port coupled to receive customer traffic; a first channel; a second channel; an aggregation engine coupled to the first and second channels; a first switch circuit coupled to the first port and to the first channel, and configured to communicate the customer traffic from the first port over the first channel to the aggregation engine, the aggregation engine including a splitter circuit configured to use layer one information to segment at least a portion of the customer traffic into a first virtual container and a second virtual container, the aggregation engine further including an encapsulation circuit configured to encapsulate the second virtual container using Ethernet standards for transport over the second channel; a radio access card configured to generate an air frame based on the first virtual container for wireless transmission over a first wireless link of a link aggregation group to the receiver; and a second switch circuit coupled to the second channel, and configured to communicate the Ethernet-encapsulated second virtual container over an Ethernet cable to a slave for wireless transmission over a second wireless link of the link aggregation group to the receiver. | 04-07-2016 |
370341000 | Channel assignment | 13 |
20080205365 | METHOD AND APPARATUS FOR COEXISTENCE - A method for coexistence of an orthogonal frequency division multiple access (OFDMA) receiver ( | 08-28-2008 |
20080298334 | REDUCING FALSE DETECTION IN AN HSDPA 3G TERMINAL - In one embodiment, a method for determining whether an encoded message in a shared channel is not intended for a communications device. The method includes: (a) decoding the message to recover a multi-bit codeword; (b) determining whether the codeword is valid or invalid, wherein, if the codeword is determined to be invalid, then the encoded message is not intended for the communications device; and (c) if the codeword is determined to be valid, then performing one or more other steps of the method to determine whether the encoded message in the shared channel is not intended for the communications device. | 12-04-2008 |
20080316992 | PROVISIONING OF NON REAL TIME SERVICES IN WIRELESS NETWORKS - A method is described for the provisioning of latency-tolerant services in an access network. The method comprises the steps of: setting a demand to provide a service to a user; determining the network resources required to provide this service; establishing based upon the resources required to provide that service, the available network resources and/or the network's service provisioning policy, whether the provisioning of this service shall be immediately effected or be postponed to a later stage. If it has been established that the service will be provided at a later stage, it will be provided at a time when the available resources and/or the network's service provisioning policy match that of the resources required for the provisioning of the service. | 12-25-2008 |
20090028123 | SYSTEM FOR PERMITTING CONTROL OF THE PURGING OF A NODE B BY THE SERVING RADIO NETWORK CONTROLLER - A system and method which permit the RNC to control purging of data buffered in the Node B. The RNC monitors for a triggering event, which initiates the purging process. The RNC then informs the Node B of the need to purge data by transmitting a purge command, which prompts the Node B to delete at least a portion of buffered data. The purge command can include instructions for the Node B to purge all data for a particular UE, data in one or several user priority transmission queues or in one or more logical channels in the Node B, depending upon the particular data purge triggering event realized in the RNC. | 01-29-2009 |
20090073950 | Wireless Audio Gateway Headset - A wireless, multi-function audio gateway device provides communication between the headset and at least one audio gateway. The headset includes a housing having at least one multifunction button, and a first and a second microphone. The first microphone is located closer to a user's mouth than the second microphone. The headset also includes a flexible ear bud, a speaker, a volume control button, a rechargeable battery, a USB port, a detachable ear wrap, and a programmable baseband IC. The programmable baseband IC is configured for wireless communications to allow interfacing between the at least one audio gateway and the wireless headset. Methods for improved noise suppression, pairing and communicating with multiple audio gateways simultaneously, and allowing headset-to-headset communications between two wireless, multiple audio gateway headsets are also disclosed. | 03-19-2009 |
20090161644 | Wireless Resource Allocation Control System, Road-Side Unit, Wireless Resource Allocation Control Method and Storage Medium Storing Program Thereof - A wireless resource allocation control system for allocating and releasing wireless resource used for communication between vehicles in a predetermined area is provided. The control system includes a unit mounted on a vehicle, and the unit includes a transmitter for transmitting first information associated with the vehicle. A station receives information from the unit and sends information to the unit. The station calculates a priority level for each of the units on the basis of the first information transmitted from each of the units, ranks the units in the order of the priority level, allocates wireless resources to the units in descending of the priority levels, and releases the wireless resource previously allocated to the unit in the case of the unit unworthy of current allocation of the wireless resource. | 06-25-2009 |
20090196269 | METHODS, SYSTEMS, AND COMPUTER READABLE MEDIA FOR CONTROLLING ACCESS TO VOICE RESOURCES IN MOBILE NETWORKS USING MOBILITY MANAGEMENT SIGNALING MESSAGES - Methods, systems, and computer readable media for controlling access to voice resources using mobility management messages are disclosed. According to one method, a mobility management message associated with a mobile subscriber is received. A priority level of the mobile subscriber is determined based on the mobility management message and access to voice resources in controlled based on the priority level. | 08-06-2009 |
20100085952 | Method of Communicating which Channel is to be Monitored by Subscriber Units that are Idle in a Communication System - The present invention discloses, in a two-way radio frequency (RF) communications system having at least one repeater, a plurality of channels, and a plurality of subscriber units, a repeater receives a message that identifies a channel that is selected to serve as a rest channel for the system. The channel that is currently serving as the rest channel for the system is monitored by subscriber units that are idle in the system. If the repeater determines that the channel selected to serve as the rest channel is hosted by the repeater, the repeater periodically transmits an identity of the channel as the channel currently serving as the rest channel on at least the channel. | 04-08-2010 |
20100085953 | METHOD FOR ENDING A CALL SESSION IN A COMMUNICATION SYSTEM - A repeater receives an indication that a subscriber unit is initiating a call session on a channel, and indicates that the channel is busy. The repeater repeats a transmission from the subscriber unit and sets a timer for a first time upon determination that the transmission has ended. The timer is set for a second time if a new transmission is not received from a subscriber unit that is allowed to transmit on the channel prior to the expiration of the first time; otherwise, the repeater accepts a new transmission from a subscriber unit that is allowed to transmit on the channel if the new transmission is received prior to an expiration of the second time. Upon receipt of each new transmission received prior to the expiration of the second time, the repeater clears the timer, repeats the transmission on the channel, and resets the timer for the first time upon determination that the transmission has ended. | 04-08-2010 |
20110211568 | BASE STATION - A base station includes a wireless communication interface configured to perform wireless communication with a mobile station being under control of the base station; and a processor configured to control the wireless communication interface to perform wireless communication with the mobile station being under control of the base station by making use of such subchannels which not only have different combinations of subcarriers when compared to any subchannel in a first subchannel group that is used by an adjacently-installed adjacent base station that performs wireless communication with a mobile station being under control thereof, but also include same subcarriers as subcarriers assigned to any one of subchannels in the first subchannel group. | 09-01-2011 |
20130250936 | METHOD AND DEVICE FOR ALLOCATING A CHANNEL IN A DECENTRALIZED TRUNKED RADIO COMMUNICATION SYSTEM - A method and device for allocating a channel in a decentralized trunked radio communication system enables efficient channel utilization. The method includes scanning at a first subscriber unit a plurality of channels to determine whether a call of interest to a first subscriber unit is active in the system (step | 09-26-2013 |
20150359013 | METHOD AND APPARATUS FOR MANAGING GROUP-BASED EMERGENCY NOTIFICATIONS AND ACKNOWLEDGMENTS - Group-based emergency notifications and acknowledgments are managed via a radio controller. A request to transmit an emergency notification with acknowledgment to an identified target group of subscriber devices is received at the radio controller from a requesting device. The radio controller identifies one or more base stations actively serving subscriber devices associated with the identified target group and identifies, for each of the identified one or more base stations, active channels including one or more of a control channel associated with the base station and active voice or data channels associated with the base station. The radio controller causes an emergency notification outbound signaling packet (OSP), requesting individual acknowledgment and identifying the target group of subscriber devices, to be broadcast on the identified active channels at the identified one or more base stations. Acknowledgments are forwarded back to one of the requesting device and a dispatch console. | 12-10-2015 |
20160142223 | RF BUS CONTROLLER - A radio frequency (RF) bus controller includes an interface and a processing module. The interface is coupled for communicating intra-device RF bus access requests and allocations. The processing module is coupled to receive an access request to an RF bus via the interface; determine RF bus resource availability; and when sufficient RF bus resources are available to fulfill the access request, allocate, via the interface, at least one RF bus resource in response to the access request. | 05-19-2016 |