Patent application number | Description | Published |
20080198814 | Mapping Of Shared Physical Channels Depending On The Quality Of Service Class - A method, a base station and a wireless communication system are provided which allow to provide optimized Quality of Service to each of a plurality of services belonging to different QoS classes and different users, transmitted over shared physical channels. Data packets are assigned to service categories. To each service category only packets are assigned exclusively belonging to services associated with one user or user group and exclusively belonging to one of said Quality of Service classes. Based on information about the packets, the service categories and/or the shared physical channels, scheduling metrics are calculated, based upon the scheduling metrics, it is decided which of said service categories is to be served next. | 08-21-2008 |
20080268852 | Delayed Base Station Relocation in Distributed Radio Access Networks - The present invention relates to a method for relocating control plane functionality of a serving base station in a mobile communication system comprising a mobile terminal and a plurality of base stations. Further, the present invention relates to a base station in a mobile communication system and to the mobile communication system. To tackle potentially intolerable delay of control signaling due to frequent serving network element relocations in the network architecture the present invention suggests a partial relocation of a serving network element wherein the control plane functionality is relocated but connection to the core network via a gateway is maintained through the previous serving network element. A further aspect of the present invention suggests a total relocation, where control plane functionalities are relocated and where a new connection to the core network is established between the new serving network element and the gateway. Also decision criteria on whether to perform partial or total relocation are provided. | 10-30-2008 |
20080276148 | Interference Limitation for Uplink Retransmissions - The present invention relates to a method for transmitting data packets from a mobile terminal to a base station using a hybrid automatic repeat request protocol and soft combining of received data. Further, the present invention provides a base station and a mo-bile terminal both configured to perform the respective method steps. Moreover, a communication system is provided which comprises at least one base station and at least one mobile terminal. In order to decrease the interference caused by retransmissions, the present invention suggests the use of separated channels for initial transmissions and their retransmissions. In order to decrease the interference caused by retransmissions, the present invention suggests the use of separated channels for initial transmissions and their retransmissions. | 11-06-2008 |
20090063924 | HYBRID ARQ RETRANSMISSION WITH REORDERING SCHEME EMPLOYING MULTIPLE REDUNDANCY VERSIONS AND RECEIVER/TRANSMITTER THEREFOR - A hybrid ARQ retransmission method in a communication system, wherein data packets consisting of symbols encoded with a forward error correction (FEC) technique prior to transmission are retransmitted based on an automatic repeat request and subsequently combined with previously received data packets the symbols of said data packets being modulated by a mapping unit employing a predetermined signal constellation. The retransmitted data packets being retransmitted in form of a selected one of a plurality of different redundancy versions. According to the invention the transmitted bits of the modulated symbols are reordered over the retransmissions in accordance with the selected redundancy version. | 03-05-2009 |
20090122765 | METHOD AND APPARATUS FOR THE SYNCHRONISATION OF THE PHYSICAL LAYERS IN HETEROGENEOUS MOBILE COMMUNICATIONS NETWORKS - The method according to the present invention provides synchronization in a heterogeneous mobile network, for the purpose of interoperability, of a wireless local area network, in which a medium is reserved for a certain service or user in radio channel reservation periods ( | 05-14-2009 |
20090245407 | CONSTELLATION REARRANGEMENT FOR TRANSMIT DIVERSITY SCHEMES - A method of transmitting data in a wireless communication system from a transmitter to a receiver, comprising the steps of modulating data at the transmitter using a first signal constellation pattern to obtain a first data symbol. The first data symbol is transmitted to the receiver using a first diversity branch. Further, the data is modulated at the transmitter using a second signal constellation pattern to obtain a second data symbol. Then, the second data symbol is transmitted to the receiver over a second diversity path. Finally, the received first and second data symbol are diversity combined at the receiver. | 10-01-2009 |
20100095183 | METHOD OF PROCESS CONFIGURATION FOR MULTIPLE HARQ PROCESSES - A method of HARQ process configuration in a mobile communication system, wherein a plurality of HARQ processes are transmitted from a transmitter to a receiver including the step of configuring a plurality of HARQ processes of unrestricted use for data flows having different priorities and the step of pre-configuring at least one reserved HARQ process for specific data flows of high priority. According to another embodiment, instead of a reserved HARQ process, an additional HARQ process is pre-configured. | 04-15-2010 |
20100281325 | INTERFERENCE LIMITATION FOR RETRANSMISSIONS - The present invention relates to a method for transmitting data packets from a mobile terminal to a base station using a hybrid automatic repeat request protocol and soft combining of received data. Further, the present invention provides a base station and a mobile terminal both adapted to perform the respective method steps. Moreover, a communication system is provided which comprises at least one base station and at least one mobile terminal. The present invention also provides a computer-readable medium for storing instructions that, when executed on a processor, cause the processor to transmit data packets from a mobile terminal to a base station using a hybrid automatic repeat request protocol and soft combining of received data. In order to restrict the interference caused by retransmissions, the present invention suggests controlling the amount of information in the retransmissions and thus the transmission power required for their transmission by TFCS restriction. | 11-04-2010 |
20110141994 | CONSTELLATION REARRANGEMENT FOR ARQ TRANSMIT DIVERSITY SCHEMES - An ARQ (re-) transmission method of transmitting data in a wireless communication system wherein data packets are transmitted from a transmitter to a receiver, using a first transmission and a second transmission based on a repeat request. The method comprises the steps of modulating data at the transmitter using a first signal constellation pattern to obtain a first data symbol. The first data symbol is transmitted as the first transmission to the receiver using a first diversity branch. Further, the data is modulated at the transmitter using a second signal constellation pattern to obtain a second data symbol. Then, the second data symbol is transmitted as the second transmission to the receive over a second diversity branch. Finally, the received first and second data symbol data symbol are diversity combined at the receiver. The invention further relates to a transmitter and a receiver embodied to carry out the method of the invention. | 06-16-2011 |
20110274195 | CONSTELLATION REARRANGEMENT FOR TRANSMIT DIVERSITY SCHEMES - A method of transmitting data in a wireless communication system from a transmitter to a receiver, comprising the steps of modulating data at the transmitter using a first signal constellation pattern to obtain a first data symbol. The first data symbol is transmitted to the receiver using a first diversity branch. Further, the data is modulated at the transmitter using a second signal constellation pattern to obtain a second data symbol. Then, the second data symbol is transmitted to the receiver over a second diversity path. Finally, the received first and second data symbol are diversity combined at the receiver. | 11-10-2011 |
20120002603 | INTERFERENCE LIMITATION FOR RETRANSMISSIONS - The present invention relates to a method for transmitting data packets from a mobile terminal to a base station using a hybrid automatic repeat request protocol and soft combining of received data. Further, the present invention provides a base station and a mobile terminal both adapted to perform the respective method steps. Moreover, a communication system is provided which comprises at least one base station and at least one mobile terminal. The present invention also provides a computer-readable medium for storing instructions that, when executed on a processor, cause the processor to transmit data packets from a mobile terminal to a base station using a hybrid automatic repeat request protocol and soft combining of received data. In order to restrict the interference caused by retransmissions, the present invention suggests controlling the amount of information in the retransmissions and thus the transmission power required for their transmission by TFCS restriction. | 01-05-2012 |
20130215830 | SYNCHRONOUS HYBRID AUTOMATIC REPEAT REQUEST (HARQ) PROTOCOL EMPLOYING A FIRST INFORMATION ELEMENT INDICATING WHETHER TO PERFORM RETRANSMISSION OF AN UPLINK DATA PACKET AND A SECOND INFORMATION ELEMENT INDICATES MODULATION AND CODING SCHEME (MCS) FOR THE RETRANSMISSION - A base station receives an uplink data packet from a user equipment based on a synchronous hybrid automatic repeat request (HARQ) protocol, and transmits a first information element and a second information element in parallel to the user equipment. The first information element indicates whether to perform a retransmission of the uplink data packet, and the second information element indicates modulation and coding scheme (MCS) for the retransmission. The base station receives the retransmission from the user equipment according to the modulation and coding scheme. The first information element is for example an ACK/NACK feedback message. | 08-22-2013 |
20140211746 | AUTOMATIC REPEAT REQUEST (ARQ) PROTOCOL EMPLOYING A FIRSTINFORMATION ELEMENT INDICATING WHETHER TO PERFORMRETRANSMISSION OF AN UPLINK DATA PACKET AND A SECONDINFORMATION ELEMENT INDICATES A TRANSPORT FORMAT FOR THERETRANSMISSION - A base station receives an uplink data packet from a user equipment based on a synchronous hybrid automatic repeat request (HARQ) protocol, and transmits a first information element and a second information element in parallel to the user equipment. The first information element indicates whether to perform a retransmission of the uplink data packet, and the second information element indicates modulation and coding scheme (MCS) for the retransmission. The base station receives the retransmission from the user equipment according to the modulation and coding scheme. The first information element is for example an ACK/NACK feedback message. | 07-31-2014 |