Abstract:
PROBLEM TO BE SOLVED: To improve quality of multimedia services delivered through a radio network. SOLUTION: A technique to provide a service such as a multicast service over different networks is described. Transmission of first and second data streams is established in first and second transmission modes over first and second networks. The first and second data streams carry the same content, and the first and second networks employ first and second radio access technologies. At the receiver, the first and second data streams are combined at the application layer into a combined data stream, which is decoded into an output for presentation to a user. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To improve signaling in a cellular communication system. SOLUTION: A device for transmitting uplink signaling information in a cellular communication system includes: a means to generate a scheduling request or assistance data for a base station type scheduler, wherein the scheduling request or the assistance data relates to uplink packet data transmission from user equipment UE; a selection means to select a first physical resource out of a plurality of physical resources of an uplink radio interface used for transmitting the scheduling request or the assistance data; and a means to transmit the scheduling request or the assistance data from the UE in the first physical resource. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To efficiently use a spectrum of an FDD downlink. SOLUTION: A user device for use in a communication system is configured so as to operate by simultaneously using double-frequency downlink carrier waves. A base station for use in the communication system is configured so as to operate by simultaneously using double-frequency downlink carrier waves. A method for communication in the communication system includes communicating with the user device by simultaneously using double-frequency downlink carrier waves. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide improved signaling in a cellular communication system. SOLUTION: The user equipment UE101 of the cellular communication system transmits scheduling support data to a base station 105 provided with a base station scheduler 209 for scheduling packet data. The scheduling support data are generated by a scheduling support data generator 223 connected to a packet data transmission buffer 211 relating to packet data transmission. A first transport channel controller 217 allocates other data to a first transport channel and a second transport channel controller 225 allocates the scheduling support data to a signaling transport channel. The transmission reliability of a retransmission and non-retransmission transport channel can be individually optimized. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a cellular communication system and method for broadcast communication. SOLUTION: A cellular communication system has a management logic arranged to support a common cell identifier reuse pattern for broadcast transmissions among a plurality of communication cells. A first wireless serving communication unit and a second wireless serving communication unit use the common cell identifier reuse pattern for broadcast transmissions. At least one wireless communication units detects broadcast communication from the first serving wireless communication unit and the second serving wireless communication unit, and the broadcast communication is allocated to a first timeslot 350 or a first sub-frame on the basis of it being more robust to multipath delay due to temporal dispersion of the same broadcast signal from the plurality of wireless serving communication units. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a method of determining a radio link quality state in a wireless communication system by predicting a signal quality metric of a secondary channel in the absence of a second signal. SOLUTION: The predicted signal quality metric may be determined from a measured signal strength of a received reference signal on a first channel, a measured interference level of a second channel, and a value of a difference between a transmission signal strength of the received reference signal on the first channel wirelessly transmitted from a network to a mobile terminal and a maximum transmission signal strength on the second channel. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To efficiently use a spectrum of an FDD downlink. SOLUTION: A base station communicating with a user device in a communication system has a lower downlink frequency carrier unit and an upper downlink frequency carrier unit and can be operated to communicate with the user device by simultaneously using both a lower downlink carrier frequency and an upper downlink carrier frequency. A method for communication between the base station and the user device in the communication system includes communication from the base station to the user device in both a lower frequency band and an upper frequency band at the same time. The user device communicating with the base station in the communication system has a lower downlink frequency carrier unit and an upper downlink frequency carrier unit and can be operated to communicate with the base station by simultaneously using both the lower downlink carrier frequency and the upper downlink carrier frequency. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a cellular communication system and a method for broadcast communication.SOLUTION: This cellular communication system has: a first cellular network constituted so that a reuse pattern of a single cell identifier is used; and a second cellular network which has a cluster of communication cells and constituted so that a reuse pattern of a common cell identifier is used for broadcast transmission. The cellular communication system further has: management logic (146) which has broadcast mode logic (150) operatively combined with at least the second cellular network; and a plurality of communication units for providing wireless service, which are operatively combined with the management logic. When broadcast communication is transmitted through the cluster of the communication cells of the second cellular network, the broadcast mode logic (150) applies the same common cell identifier used by the plurality of communication units for providing wireless service.
Abstract:
PROBLEM TO BE SOLVED: To utilize a spectrum of FDD down-link efficiently. SOLUTION: An user device used in a communication system operates in an upper and lower down-link carrier frequency, and is composed so as to operate the upper and lower down-link carrier frequencies as a single combined resource to allocate down-link. A base station used in the communication system operates in an upper and lower down-link carrier frequency, and is composed so as to operate the upper and lower down-link carrier frequencies as a single combined resource to allocate the down-link. The method to communicate in the communication system is to communicate from the base station using the upper and lower down-link carrier frequencies and to operate the upper and lower down-link carrier frequencies as the single combined resource to allocate the down-link. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a communication system, transmitter, receiver and method for appropriately controlling transmission power for HS-SCCH common channels. SOLUTION: The system, transmitter, receiver and method are for communication power control by a transmitting entity (150A) keeping a sequence number counter (200) per UE (130A) that is incremented whenever a common channel transmission is made specifically to that UE. The value of the counter is signalled inside the message itself (or possibly by other signalling means) across the Uu interface. When the intended recipient UE correctly decodes a message, it also decodes the counter value or the sequence number. It compares this counter value or the sequence number with the last correctly received sequence number, which it holds in a memory (300), and deduces whether there are any missing sequence numbers, and accordingly effects transmission power control. COPYRIGHT: (C)2010,JPO&INPIT