| Patent application number | Description | Published |
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| 20080254804 | Scheduling of Mobile Terminals in a Mobile Communication System - The invention relates to a method for scheduling mobile terminals within a mobile communication network and to a base station performing this method. Further, the invention relates to a method for acting upon the reception of scheduling grants in a mobile communication system and to a mobile terminal performing this method. To allow the serving cell to control resource utilization for uplink transmissions of UEs in soft-handover, without thereby decreasing the system throughput of UEs in the serving cell which are not in soft-handover, the invention proposes to use control information transmitted via a shared absolute grant channel to the UEs along with an absolute grant, wherein the control information indicate whether the absolute grant is valid for mobile terminals in soft-handover only. | 10-16-2008 |
| 20080311923 | Fast Radio Bearer Establishment in a Mobile Communication System - The invention relates to methods for establishing a radio bearer between a network element terminating radio resource control protocol and a mobile terminal. The invention provides RNC for establishing a radio bearer between the RNC and a mobile terminal, especially adapted mobile terminals and a system comprising the network element and at least one mobile terminal. In order to reduce the delays implied by the signaling in the procedure the invention proposes two mechanisms. The first mechanism aims at reducing the delay implied by setting up the radio link for the radio bearer by preconfiguring a pool of resources comprising a set of at least radio bearer configuration and making the available radio bearer configurations known to the mobile terminals. The second mechanism aims at avoiding the delay implied by the explicit assignment of a radio network temporary identifier by signaling a set of available identifiers from which the mobile terminal may choose an identifier. | 12-18-2008 |
| 20090097444 | OVERHEAD REDUCTION OF UPLINK CONTROL SIGNALING IN A MOBILE COMMUNICATION SYSTEM - The present invention relates to a method and mobile terminal for transmitting data on uplink within a mobile communication system. Further the invention relates to a network entity for allocating uplink resources to such a mobile terminal. When a user equipment is transmitting uplink (UL) data according to allocated resources, it has to indicate the transport format of the current data transmission to Node B by means of UL control signaling. To propose a scheduling scheme which reduces the overhead of uplink control signaling, a method is proposed that achieves a significant reduction of the UL control signaling overhead by considering characteristics of an orthogonal radio access scheme used for evolved UTRA uplink scheme and using differential signaling of the transport format information. Although the invention is particularly suitable for uplink transmissions in an orthogonal single-carrier radio access scheme, it is not restricted to this particular embodiment. | 04-16-2009 |
| 20090116434 | UPLINK RESOURCE ALLOCATION IN A MOBILE COMMUNICATION SYSTEM - The present invention relates to a method and mobile terminal for requesting resources for transmitting data on uplink within a mobile communication system. Further the invention relates to a network entity for allocating uplink resources to mobile terminal. To provide a flexible scheduling scheme for uplink transmission, the invention proposes different scheduling procedures based on a request grant scheme. The resource request of the mobile terminal is provided via a contention-based channel, while all further communication uses scheduled resources. Consequently subsequent transmissions of user data and/or scheduling information utilize scheduled resources. | 05-07-2009 |
| 20090116490 | METHOD AND APPARATUS FOR PACKET SEGMENTATION AND CONCATENATION SIGNALING IN A COMMUNICATION SYSTEM - The invention relates to a data packet structure for conveying data of service data units (SDU) using protocol data units (PDU). The data packet comprise a data packet payload comprising at least one protocol data unit (PDU), wherein a protocol data unit (PDU) comprises a service data unit (SDU) or a fragment of a service data unit; and a data packet header comprising an indicator (FFF, SFF) indicating whether or not the data packet payload begins with a protocol data unit (PDU) being a fragment of a service data unit and whether or not the data packet payload ends with a protocol data unit (PDU) being a fragment of a service data unit. | 05-07-2009 |
| 20090219870 | RESOURCE BLOCK CANDIDATE SELECTION TECHNIQUE EMPLOYING PACKET SCHEDULING IN WIRELESS COMMUNICATION SYSTEMS - A method of transmitting data packets over a plurality of dynamically allocated resource blocks in at least one or a combination of a time, code or frequency domain on a shared channel of a wireless communication system, comprising the steps of selecting a number of resource block candidates for potential transmission of data packets destined for a receiver and transmitting the data packet to the receiver using at least one allocated resource block from the selected resource block candidates. The invention also relates to a corresponding method of decoding data packets, a transmitter, receiver and communication system. | 09-03-2009 |
| 20090262699 | RESOURCE RESERVATION FOR USERS IN A MOBILE COMMUNICATION SYSTEM - The invention relates to a method and scheduling apparatus for reserving radio resources in radio resource block units in a mobile communication system for a plurality of users. Further, another aspect of the invention is the indication of a radio resource reservation in radio resource block units in a mobile communication system to one of a plurality of mobile terminals. To provide a new mechanism allowing an efficient utilization of radio resources the invention proposes a resource reservation mechanism that reserves radio resources for a plurality of users in resource block units. Thereby, individual resource blocks are reserved for the individual users for a reservation period that comprises a plurality of time slots (or sub-frames). Further, the resource block reservations for the users overlap at least partially among the users, i.e. individual ones of the resource blocks are reserved for plural users. | 10-22-2009 |
| 20100098006 | AVOIDANCE OF FEEDBACK COLLISION IN MOBILE COMMUNICATIONS - The invention relates to feedback transmission for data packets in a mobile communication system. In particular the invention provides a communication system wherein feedback information of a retransmission protocol for transmitted data packets is transmitted. Further, the invention relates to a method for determining radio resources for the transmission of feedback information of a retransmission protocol for transmitted data packets as well as to a base station and a mobile station performing the method. In order to prevent potential collisions of feedback information while omitting a destination identifier for identifying the receiver of the feedback, the feedback resources for sending the feedback are determined at least based on a current transmission counter for a packet. | 04-22-2010 |
| 20100135229 | Communication of Scheduling Related Information in a Mobile Communication System - The invention relates to method for communicating scheduling related information from a mobile terminal to a base station in the radio access network of a mobile communication system. Further, the invention also relates to a mobile terminal and a base station utilizing this method and a communication system. To avoid the allocation of resources that a mobile terminal may not utilize in view of restriction of uplink rate control by a scheduler, the invention suggests informing the scheduler on the status of a rate enforcement functionality of the uplink rate control function within a mobile terminal, so as t allow an adequate scheduling of uplink resources. | 06-03-2010 |
| 20100296427 | Soft-Buffer Management of a Re-Transmission Protocol for Unicast and Multicast Transmissions - The invention relates to a method for transmitting data packets between an eNodeB and a mobile node (MN) when simultaneously using the HARQ protocol with soft-combining for unicast and multicast transmissions. Unicast transmissions are assigned to HARQ processes by the eNB, whereas multicast transmissions need to be assigned to a HARQ process by the MN. According to a first aspect, the soft-buffer memory is strictly separated into a unicast and multicast section, and HARQ protocol operations for unicast and multicast are independent. Due to the separation, the eNB can still correctly assign the unicast transmissions to a HARQ process. According to a second aspect, the soft-buffer is not separated but commonly used for unicast and multicast. However, in order for the eNB to still be able to correctly assign the unicast transmissions to a free HARQ process, the MN assigns the multicast transmission depending on a rule, known also to the eNB. | 11-25-2010 |
| 20110047430 | IMPROVED HARQ PROCESS MANAGEMENT - The invention relates to a method for receiving data units when using one HARQ process of an HARQ protocol. The memory associated to the HARQ process is divided into several sub-areas, which are addressable by an identifier. Then, when data is received, same is stored in one of the sub-areas. By providing more than one sub-area for one HARQ process, it is possible to actually use one HARQ process for two (or more) different received data units, being from the same data flow or from a different data flow. The actual sub-area of the HARQ process for storing data units can be either freely selected at the receiving end or is indicated by an identifier associated with the data. Furthermore, persistent scheduled data is transmitted in units, scheduled at fixed time intervals. Thus, a control signaling field, usually used for indicating new units, can be used to store the identifier. | 02-24-2011 |
| 20110103335 | CONTROL CHANNEL SIGNALLING FOR TRIGGERING THE INDEPENDENT TRANSMISSION OF A CHANNEL QUALITY INDICATOR - The invention suggests a method for providing control signalling in a communication system of generating a control channel signal comprising a transport format and a channel quality indicator trigger signal for triggering a transmission of a channel quality indicator by at least one terminal to the base station, and transmitting the generated control channel signal to at least one terminal, wherein said transport format is a predetermined format for user data transmission by the at least one terminal to the base station and said control channel signal indicates a predetermined mode for reporting the channel quality indicator to the base station, wherein the channel quality indicator transmission is to be triggered by the at least one terminal based on the channel quality indicator trigger signal. | 05-05-2011 |
| 20110107169 | ACTIVATION OF SEMI-PERSISTENT RESOURCE ALLOCATIONS IN A MOBILE COMMUNICATION NETWORK - The invention relates to a method for allocating radio resources to a mobile terminal for data transmission in a mobile communication system as performed by a mobile terminal and a base station, respectively. Moreover, the invention relates to a mobile terminal and a base station to perform such method, as well as an implementation of the method in software. The invention further provides a mobile communication system in which radio resources are allocated to a mobile terminal for uplink transmission. In order to avoid false activation of a semi-persistent resource allocation the invention defines new conditions under which a mobile terminal activates a semi-persistent resource allocation. Unlike for example in prior-art systems, a mobile terminal only activates a semi-persistent resource allocation, if it can confirm the activation command received from the access network. Preferably, the activation command and its confirmation are resource assignments. | 05-05-2011 |
