Patent application number | Description | Published |
20120142340 | METHOD AND APPARATUS FOR CONVEYING USAGE AND ACCESS RIGHTS INFORMATION FOR EACH SUB-SLOT ON A CARRIER - Apparatuses and methods are disclosed for increasing calling capacity in a carrier by dividing timeslots on the carrier into sub-slots and for conveying usage and access rights information for each sub-slot on a carrier. A base station configures a control signal that is associated with each of a plurality of timeslots on a carrier. Each of the plurality of timeslots is divided into sub-slots and specific fields in the control signal are associated with each sub-slot. The base station provides, to mobile stations, at least one of a usage marker or access rights information through the control signal. The mobile stations use the usage marker or access rights information to determine whether transmission of voice traffic and control signaling is permitted on each sub-slot. | 06-07-2012 |
20120142363 | METHOD AND APPARATUS FOR INCREASING CALL CAPACITY ON A CARRIER - A method and apparatus is disclosed for increasing calling capacity in a carrier using enhanced Terrestrial Trunk Radio (TETRA) protocols. The method includes transmitting, by a base station to at least one mobile station, a permission signal for an assigned timeslot on a carrier, wherein each timeslot is divided into at least two sub-slots. The method also includes configuring a control signal that is associated with each of the plurality of timeslots. Specific fields in the control signal are associated with each sub-slot on each of the plurality of timeslots. The method further includes providing usage markers through the control signal. Usage markers values are divided into ranges, each range used to identify a timeslot or a sub-slot assignment on the carrier. The base station sends a time advance value to the mobile station to indicate when transmission from the mobile station is to begin. | 06-07-2012 |
20130024902 | SOURCE RATE AND CHANNEL RATE MATCHING FOR SCALABLE VIDEO TRANSMISSON - A source rate associated with a video bit stream ( | 01-24-2013 |
20130209057 | METHOD AND APPARATUS FOR CAPTURING AN IMAGE - A method and apparatus are provided for capturing an image so that color degradations can be minimized. During operation, a video-recording system will fetch and record the scene without the illumination of the light bars. More particularly, as a video recorder/transmitter is set to record, logic circuitry triggers the light bars to turn off for a short period of time (e.g., a few seconds), and then turned back on. During that time period, the field-of-vision (unencumbered by the stroboscopic illumination and color) is sampled by the camera as a reference. Color correction/compensation is performed using the unencumbered field-of-vision as a reference. | 08-15-2013 |
20150031405 | METHOD AND SYSTEM FOR SEAMLESSLY SWITCHING BETWEEN A TRUNKED MODE OPERATION AND A DIRECT MODE OPERATION - A method and a system for operating a subscriber unit to seamlessly switch between a trunked mode operation (TMO) and a direct mode operation (DMO) in a communication system. The communication system includes one or more subscriber units communicating in trunked mode operation on a first communication channel via a base station and the subscriber units communicating in direct mode operation on a second communication channel via a direct mode gateway station. When the subscriber units communicate in the TMO and when the signal quality on the first communication channel is below the predetermined threshold, the subscriber units automatically switch to the direct mode operation. When the subscriber units communicate in DMO and when the signal quality on the second communication channel is below the predetermined threshold, the subscriber units automatically switch to the trunked mode operation. | 01-29-2015 |
20150373700 | METHODS AND SYSTEMS FOR NODE OPERATION ACCORDING TO NETWORK-WIDE RESOURCE-ALLOCATION SCHEDULES - Disclosed herein are methods and systems for node operation according to network-wide resource-allocation schedules. One embodiment takes the form of a method carried out by a given node within an ad-hoc wireless network, which includes a controller node for a current time period. The method includes obtaining one or more air-interface resource requests for the current time period, where each obtained resource request indicates a requesting node and a requested resource. The method further includes using a network-standard algorithm for deriving a network-wide resource-allocation schedule for the current time period based at least in part on the obtained resource requests. The method further includes verifying the derived resource-allocation schedule based at least in part on a verification value derived by the controller node from the network-wide resource-allocation schedule using a network-standard verification function. The method also includes operating according to the verified resource-allocation schedule for the current time period. | 12-24-2015 |
20150382233 | METHOD AND SYSTEM FOR DATA TRANSMISSION - A method and system for data transmission is provided. Compressed payload packets are transmitted on one or more payload channels. On a header restoration channel, header restoration packets are transmitted for restoring headers of at least some of the compressed payload packets. | 12-31-2015 |
20160094607 | METHOD AND APPARATUS FOR REAL-TIME PROTOCOL HEADER GENERATION - A media server and method of operation of a media server in a wireless communication system are provided. The media server receives media streams from mobile communication devices in the wireless communication system, and routes the media streams sequentially to a packet header compression encoder. A processor of the media server is configured to receive a first media stream from a first mobile communication device, receive a request from a second mobile communication device to transmit a second media stream to the media server, and transmit data derived from an RTP header of the first media stream to the second mobile communication device. The second mobile communication device is enabled to commence transmission of the second transmitted media stream using the data derived from the RTP header. The wireless communication system may be a PTT wireless communication system or a group video wireless communication system. | 03-31-2016 |