Patent application number | Description | Published |
20080267166 | Method and Apparatus for Providing a Multimedia Service - A method of providing a combinational communication service to a user of a communication network where a physical channel is defined for the user in respect of a circuit switched connection primarily for carrying real time data, the method comprising interrupting the transmission of real time data on said physical channel in order to allow non-real time data to be transmitted on the physical channel or to allow signalling, for setting up a packet switched bearer for carrying non-real time data, to be transmitted on the physical channel. | 10-30-2008 |
20090016328 | METHOD FOR SCHEDULING VoIP TRAFFIC FLOWS - The present invention relates to a method for scheduling a data transmission to a user equipment in a communication system comprising at least one radio network controller (RNC) governing a number of base stations, wherein the communication system supports data transmission from a base station to an user equipment on a high speed packet access (HSPA) bearer or a dedicated channel (DHC) or on similar bearers in a CDMA2000 system. The method comprises the steps of: identifying at least one predetermined scheduling condition for data transmissions for the user equipment; determining at least one current scheduling conditions of the user equipment; comparing the predetermined scheduling conditions of the user equipment with the current conditions of the user equipment; selecting a bearer for the data transmissions during a session from a base station based on the comparison; and using the selected data bearer during the data transmission session or until a new data bearer has been selected. Furthermore, the invention relates to a user equipment, a radio network controller, a computer readable medium and mobile communication system for data transmissions such as VoIP service transmissions in wireless communications systems | 01-15-2009 |
20090052322 | Selecting Channel Bandwidth and Data Error Target Dynamically Based On a Determined Transmission Need - In a mobile communication system having channels with different bandwidths, a channel bandwidth can be dynamically selected for transmitting data over a connection between a radio access network and a mobile station. According to the invention, a channel bandwidth and also a target for a data error rate for the transmission is selected based on a determined transmission need, i.e. a determined characteristics of the data to be transmitted and on a determined load of a communication resource, e.g. channel power and/or total carrier power used in a cell. By making it possible to dynamically select a data error rate, a connection can, by increasing the data error rate and consequently decreasing the channel power, carry on using a certain channel bandwidth even if at a first instance a load threshold level is achieved for the channel power or the total power used in the cell. Thereby, the capacity of the system can be increased, while at the same time the throughput over the connection is increased. | 02-26-2009 |
20090103450 | VOIP PERFORMANCE OPTIMIZATION FOR E-DCH POWER LIMITATION - User equipment in a wireless communication system monitors scheduling information and locally detects a change in link data rate of the uplink channel based on the monitored scheduling information. In this way, a change in link data rate can be detected directly without significant delay. This direct or early detection of a rate change is then combined with an appropriate system reaction. The information of the detected change in link data rate is preferably utilized for adapting the application data rate of an IP application running in the user equipment. As an alternative, or as a complement, data packets are classified based on relative importance and selected for transfer of information over the uplink channel based on the classification of data packets and in dependence on the detected change in link data rate. | 04-23-2009 |
20090245272 | METHOD AND ARRANGEMENT FOR IMPROVING MEDIA TRANSMISSION QUALITY USING ROBUST REPRESENTATION OF MEDIA FRAMES - In a method of improved media frame transmission in a communication network. Initially a plurality of “original” or regular media frames are provided for transmission. According to the invention, robust representations of the provided regular media frames are generated and stored locally. Subsequently, one or more of the regular media frames is/are transmitted. The invention detects an indication of a loss of a transmitted media frame, and the idea is to transmit, in response to a detected frame loss, a stored robust representation of the lost media frame and/or a stored robust representation of a subsequent, not yet transmitted, media frame to increase the media quality. | 10-01-2009 |
20090323541 | METHOD AND ARRANGEMENT FOR TRANSMITTING CQ1 ON THE UPLINK - A method for transmitting data flows between a network element and a number of receivers over a first channel. The method comprises the steps of: performing a link adaptation for the transmission of a data flow by said network element, and transmitting the data flow, transmitting an indication of a channel quality required for reception of the data flow on a second channel, receiving by said receivers said indication of channel quality, measuring a link quality by said receivers by monitoring a pilot channel, comparing said measured link quality with said received indication of the channel quality, and transmitting to said network element result of said comparison of said measured link quality with said received indication of the channel quality, if said result is lower than a predetermined value. The invention also relates to a network element and a user equipment. | 12-31-2009 |
20090325580 | Method and Arrangement in a Telecommunication System - A method is described of assigning to a user equipment one or more idle gap patterns in uplink and/or downlink communications between the user equipment and a radio base station, to allow the user equipment to perform downlink measurements on neighbour cells during the idle gaps. The method comprises defining a pre-assigned idle gap pattern; and modifying the pre-assigned idle gap pattern on the basis of one or more short commands sent between the user equipment and the radio base station. | 12-31-2009 |
20100046405 | METHOD AND ARRANGEMENT FOR ALIGNMENT OF PROTOCOL DATA UNITS IN A WIRELESS COMMUNICATION SYSTEM - The present invention relates to a method and arrangement for communicating a Protocol Data Unit (PDU) between a transmitter unit and a receiver unit in a wireless communication network. Said PDU comprising protocol headers associated with at least a first and a second protocol layers involved in the communication and a payload to be communicated. The method comprises the step of interacting between the at least first and second protocol layers, such that the sum of the bits of the protocol headers is n-bit aligned such as octet aligned independently of non-alignment of at least one of the protocol headers comprised in the PDU. | 02-25-2010 |
20100046448 | Single Bit Segmentation Indicator - Data units according to the first transmission format are divided into data units according to the second transmission format. A single-bit segmentation indicator inserted into the header of a data unit according to the second transmission format indicates whether the data unit according to the first transmission format ends in a data unit according to the second transmission format. | 02-25-2010 |
20100074192 | METHOD FOR MAPPING LOGICAL CHANNEL ON SHARED CHANNEL - According to the invention data in a number of logical downlink intended for one or more mobile terminals are received in a first mapping unit, where at least a first High Speed Radio Network Temporary identity is allocated to these logical downlink channels addressing a group of mobile terminals for allowing transmission of channel data for reception by mobile terminals. A mobile terminal then reads, from a Broadcast Control Channel, necessary information including a High Speed Radio Network Temporary identity allocated to at least one logical downlink channel, where at least said first identity exists among possible identities. It then listens to a high speed shared control channel for the read identity. In case it detects the identity, the terminal follows a scheduling command, receives data on a high-speed downlink shared channel and processes said data. | 03-25-2010 |
20100077272 | HARDQ SYNCHRONIZATION METHOD FOR LTE - A method and apparatus according to the present invention addresses and/or prevents lost protocol synchronization in HARQ systems caused by ACK/NACK errors. One embodiment detects lost synchronization errors for NDI-based retransmission protocols and restores synchronization by sending an explicit RESET message. In response to the RESET message, the transmitter aborts the transmission of a current PDU and transmits a new PDU and corresponding NDI. Another embodiment prevents protocol synchronization errors by sending scheduling grants on a packet by packet basis. The receiver sends a subsequent explicit scheduling grant to the transmitter based on an error evaluation of a received PDU. The transmitter will not send the next PDU unless it receives the subsequent explicit scheduling grant. | 03-25-2010 |
20100080170 | Improved MAC-D Multiplexing in UTRAN HSDPA Wireless Networks - UTRAN MAC-d multiplexing of data from multiple logical channels to a single MAC-d flow is supported while reducing overhead and achieving octet alignment in MAC-d PDU length. In one embodiment, the C/T field of a multiplexed MAC-d PDU is eliminated, and the logical channels multiplexed into the MAC-d flow are mapped to a MAC-hs PQ in at least the NodeB (and preferably in the UE as well). In other embodiments, the C/T field is retained, and an octet-aligned length indicator is transmitted from the RNC to the UE. In one embodiment, the length indicator is octet-aligned by padding the MAC-d PDUs. In another embodiment, transmitters and receivers in the path from RNC to UE are configured with an offset to add to the length indicator to achieve octet alignment. The padding or offset is (8−n) bits, where n=the number of bits in C/T field. | 04-01-2010 |
20100085880 | METHOD AND ARRANGEMENT IN A WIRELESS COMMUNICATION NETWORK - Method and arrangement in a first node for requesting a status report from a second node. The first node and the second node are both comprised within a wireless communication network. The status report comprises positive and/or negative acknowledgement of data sent from the first node, to be received by the second node. The first node comprises a first counter configured to count the number of transmitted Protocol Data Units, PDUS, and a second counter configured to count the number of transmitted data bytes. The method and arrangements comprises initialising the first and the second counter to zero, transmitting data to be received by the second node, comparing the value of the first and the second counters with a first threshold limit value and a second threshold limit value and requesting a status report from the second node if any of the threshold limit values is reached or exceeded. | 04-08-2010 |
20100118876 | Link Layer Control Protocol Implementation - The present invention relates to a link layer control protocol implementation in a communication system. To improve operative efficiency of the link layer control protocol implementation it is suggested to delay issuance of a retransmission request for a missing data unit during a retransmission delay time period. Therefore, according to the present invention a retransmission request is not issued immediately upon detection of a missing data unit. Therefore, the present invention avoids issuance of false alarm for the missing data unit when it is received during the retransmission delay period. | 05-13-2010 |
20100135249 | Method and Apparatus for Seamless Handover in a Wireless Communication Network - In a wireless communication network where base stations receive protocol data units (PDUs) from mobile stations for decompression and deciphering for ordered, sequential transfer as service data units (SDUs) to an associated core network, the teachings presented herein provide a method of supporting seamless handover of a mobile station from a source base station to a target base station. By way of example, the teachings herein apply to a network based on the E-UTRA specifications, as promulgated by the 3GPP. However, that example is non-limiting, as the teachings herein apply to any network that employs in-sequence data delivery and duplicate data detection at handover. Broadly, the source base station forwards out-of-sequence SDUs and corresponding sequence number information to the target base station in support of seamless handover, and the target base station uses that information to request retransmissions as needed for packet reordering. | 06-03-2010 |
20100172295 | Technique for Uplink Data Transmissions in Communication Networks - The invention relates to a technique for uplink data transmissions in, e.g., mobile networks. A method embodiment for performing the technique in a transmitter ( | 07-08-2010 |
20100177721 | METHOD AND A USER EQUIPMENT IN A TELECOMMUNICATIONS SYSTEM - The present invention relates to a method for use in a user equipment ( | 07-15-2010 |
20100197315 | CONDITIONAL PARALLEL EXECUTION OF ACCESS STRATUM (AS) AND NON-ACCESS STRATUM (NAS) SIGNALING - The present invention relates to methods and arrangements for facilitating an efficient connection setup. The present invention specifies rules for defining the signaling of connection setup messages from user equipments such as to apply one single transmission if an assigned uplink transmission grant for transmitting the connection setup messages is sufficiently large while applying separate transmissions if the size indicated in said uplink transmission grant is not sufficient. Thus, a sufficiently large grant allows a parallel execution of the connection setup messages. | 08-05-2010 |
20100216471 | Link Layer Control Protocol Implementation - A radio base station suitable for performing a handover operation for a LTE-variant of a radio access network comprises a transceiver and a status report requester. The transceiver is configured to facilitate wireless transmission between the radio base station and a wireless terminal over an air interface, including transmission of a radio link bearer for the connection over a downlink from the radio base station to the wireless terminal. The status report requester is configured to determine, according to one or more pre-defined criteria, whether to request from the wireless terminal a status report for a radio bearer prior to the radio base station transferring user data for the connection to another radio base station in conjunction with a handover. | 08-26-2010 |
20100220709 | Sequence Number Update - The invention relates to a method and device in a communications network when a User Equipment, UE, needs to update a next expected Transmission Sequence Number, TSN, continuously in order to avoid discarding successive transmissions. The method comprises: resetting a next expected TSN value in said network and UE to predetermined values after a predetermined inactivity time. | 09-02-2010 |
20100222006 | Reading Neighboring Cell System Information - A base station indicates to mobile stations as to whether specific offsets apply for use when measuring a signal strength of base stations in neighboring cells. Additionally, if the neighboring cells do use offsets, the present invention may indicate as to whether the neighboring cell offsets are the same as the current serving cell offset. | 09-02-2010 |
20100240410 | Reducing State Transition Time From Power Saving State - The present invention relates to a method and an arrangement for reducing a state transition time from a power saving state for a user equipment ( | 09-23-2010 |
20100273451 | Method and Apparatus for Mobile Terminal Positioning Operations - In one aspect of the invention presented herein, a mobile terminal requests positioning assistance data from its supporting wireless communication network, in response to receiving a positioning request from a positioning node. Further, in response to receiving the positioning assistance data from the network, the mobile terminal sends the positioning assistance data to the positioning node. In this manner, the positioning node advantageously gains access to network-generated positioning assistance data without need for requesting it from the network. In at least one embodiment, the mobile terminal receives the positioning request from the positioning node over a User Plane (UP) connection. However, the mobile terminal sends the positioning assistance data request to the base station over a Control Plane (CP) connection, and receives the requested positioning assistance data via the CP. The terminal transfers that data to the UP and sends it to the positioning node. | 10-28-2010 |
20100284314 | Compressed Buffer Status Reports in LTE - Methods and apparatus for producing a compressed buffer status report ( | 11-11-2010 |
20100309892 | Method and Arrangement for Transmitting a Data Unit in a Wireless Communications System - An object of the present invention is to provide a mechanism for improving coverage in a wireless communications system. The object is achieved by a method in a sending node ( | 12-09-2010 |
20100322098 | METHOD AND ARRANGEMENT IN A TELECOMMUNICATION SYSTEM - A method for sending buffer status information includes checking if a quality of service (QoS) parameter is defined for a first logical channel and at least one condition of a set of predetermined conditions associated with a logical channel group is fulfilled. If the QoS parameter is defined and at least one condition of the set is fulfilled, the method includes setting a number of bits in a media access control header according to a first semantic. The bits carry buffer status information, and the first semantic is based on the QoS parameter of the first logical channel. Otherwise, the method includes setting the number of bits carrying the buffer status information according to a second semantic that is based on an amount of data available for transmission across the logical channel group. | 12-23-2010 |
20100329135 | Buffer Status Reporting Based on Radio Bearer Configuration - The present invention relates to wireless communication systems, and more particularly to a method and an apparatus for periodically reporting the buffer status in a wireless communication system. Methods and arrangements for an improved buffer status reporting taking the type of radio bearer configuration into account is provided. This is achieved according to an embodiment of the present invention by taking the type of radio bearer configuration into account when determining the content of the buffer status report sent by the UE to the eNodeB. | 12-30-2010 |
20110007755 | COMMUNICATION WITH COMPRESSED HEADERS - Communication efficiency may be enhanced by using compressed headers. In an example embodiment, a method is performed by a transmitting device to reduce header size. A mapping is created between a logical channel identifier and a compressed logical channel identifier. The compressed logical channel identifier occupies fewer bits than the logical channel identifier. The mapping is transmitted to a receiving device. A compressed header that includes the compressed logical channel identifier is formulated. A communication that includes the compressed header is transmitted to the receiving device. In another example embodiment, a method is performed by a receiving device to decode a header having a reduced size. A mapping and a communication including a compressed header are received. A compressed logical channel identifier is extracted from the compressed header. A logical channel identifier is recovered from the compressed logical channel identifier using the mapping. | 01-13-2011 |
20110014917 | Configuration of HS-DSCH Serving Cell Change Improvements - The present solution relates to a method in a user equipment ( | 01-20-2011 |
20110032819 | Method and Nodes for Congestion Notification - A method of performing congestion notification for a data transmission ( | 02-10-2011 |
20110044195 | Method and a Transceiver for HARQ Failure Detection - The present invention relates to a method and to a transceiver ( | 02-24-2011 |
20110124360 | Methods and Arrangements in a Mobile Telecommunications Network - The present invention relates to method and arrangements for using an identifier of a predefined type, e.g. an RNTI identifying one configuration on an out-band control channel for activating the configuration identifiable by that identifier. The identifier is sent from the network to the UE, when a configuration corresponding to that identifier is to be activated. This implies that both the UE and the radio base station comprise a mapping between each configuration and the corresponding identity of each configuration. | 05-26-2011 |
20110136465 | METHODS AND DEVICES FOR EMERGENCY NOTIFICATIONS - Embodiments disclose a method in a communication device in a telecommunications network. The first communication device receives an emergency notification from a broadcasting unit indicating a cell associated to the first communication device wherein the emergency is to be notified to a user equipment. The first communication device determines a paging channel to be used to page and broadcast within the cell a notification indicating an emergency and orders the notification indicating an emergency to be transmitted on the paging channel. The first communication device determines a common control channel to be used to broadcast an emergency confirm message within the cell, and orders the emergency confirm message to be transmitted on the common control channel. | 06-09-2011 |
20110164664 | RLC Segmentation for Carrier Aggregation - Systems, devices, methods and software according to these exemplary embodiments provide for reducing the number of different sequence numbers used to transmit radio link control, RLC, data blocks to avoid, for example, sequence number stalling. This can be accomplished by, for example, transmitting or receiving RLC protocol data unit, PDU, segments as the initial or original instance of data communication. | 07-07-2011 |
20110199923 | Enabling Reporting of Non-Real-Time MDT Measurements - Methods and apparatus for informing a network node of a wireless communication network of the presence of logged measurements are disclosed. A first mobile station performs measurements concerning one or more connectivity aspects for the first mobile station in relation to the wireless communication network and stores the measurements in an internal log, where the measurements are performed according to a reporting configuration for the first mobile station. The first mobile station then sends a notification to the first network node regarding the presence of logged measurements in order to enable the first network node to respond to the notification with a request for a logged measurement report. | 08-18-2011 |
20110200032 | METHODS AND ARRANGEMENTS IN RADIO COMMUNICATION SYSTEMS - Methods and arrangements for adjusting timing of transmissions in a radio communication system in which aggregation of component carriers is employed are disclosed. A base station sends a first TA command applicable to a first component carrier to a user equipment. A need to maintain different uplink transmission timing for the first user equipment component carrier and second uplink component carrier is detected by the base station. The base station then sends a second TA command based on the detected need to maintain different uplink transmission timing. The second TA command is applicable to uplink transmissions on the first component carrier and/or the second component carrier. The user equipment adjusts uplink transmissions on the first component carrier and/or the second uplink component carrier based on the second timing advance command. | 08-18-2011 |
20110201324 | Reporting of Non-Real-Time MDT Measurements - Methods and apparatus for providing measurement reports to a wireless communication network from a mobile station are disclosed. A first mobile station performs measurements concerning one or more connectivity aspects for the first mobile station in relation to the wireless communication network and stores the measurements in an internal log, where the measurements are performed according to a reporting configuration for the first mobile station. A first network node of the network sends a request for a logged measurement report, which is received by the first mobile station. The first mobile station then sends a logged measurement report as a response to the, which report is then received by the first network node. | 08-18-2011 |
20110205926 | METHOD AND ARRANGEMENT IN A WIRELESS COMMUNICATION NETWORK - Method and arrangement in a first node for requesting a status report from a second node. The first node and the second node are both comprised within a wireless communication network. The status report comprises positive and/or negative acknowledgement of data sent from the first node, to be received by the second node. The first node comprises a first counter configured to count the number of transmitted Protocol Data Units, PDUs, and a second counter configured to count the number of transmitted data bytes. The method and arrangements comprises initialising the first and the second counter to zero, transmitting data to be received by the second node, comparing the value of the first and the second counters with a first threshold limit value and a second threshold limit value and requesting a status report from the second node if any of the threshold limit values is reached or exceeded. | 08-25-2011 |
20110222451 | Fast Dormancy Requests in Communication Systems - Methods and apparatus for operating a user equipment (UE) for a wireless communication system. A method includes determining, by the UE, whether the UE is in a battery-efficient state; if the UE is not in a battery-efficient state, configuring the UE to transmitting a signaling connection release indicator with a cause value; if the UE is in the battery-efficient state, determining whether the UE is in a high-mobility state; if the UE is in the high-mobility state and is in the battery-efficient state, enabling the UE to transmit the signaling connection release indicator with a cause value; and if the UE is not in the high-mobility state and is in the battery-efficient state, disabling the UE from transmitting the signaling connection release indicator with a cause value. | 09-15-2011 |
20110287738 | Method and Apparatus for Measurement of Active User Devices per Quality-of-Service Class Indicator - Methods, apparatus, and systems for measuring, on a per-QoS-class basis, the average number of user devices active on the uplink of a wireless communication system are disclosed. In an exemplary method, a number of mobile terminals with buffered data for transmission to a base station is estimated based on received buffer status reports. An estimated quantity of active mobile terminals is calculated, based on the received buffer status reports and a number of mobile terminals for which a semi-persistent scheduling grant has been granted. In some embodiments, the estimated quantity of active mobile terminals is estimated on a per-traffic-class basis, in which case the technique includes calculating first and second estimated quantities, corresponding to mobile terminals having active data bearers for first and second traffic classes, respectively, based on the received buffer status reports and the number of mobile terminals for which a semi-persistent scheduling grant has been granted. | 11-24-2011 |
20120002648 | METHODS AND ARRANGEMENTS IN A WIRELESS TELECOMMUNICATION SYSTEM - Using an extended reordering depth in order to avoid TSN reordering window stalling during a stop-and-wait HARQ-process of a multi-carrier operation in the downlink MAC-ehs protocol and in the uplink MAC-i/is protocol. The extended reordering depth corresponds to a reordering depth that is increased from the 32 sequence numbers obtained by a 6 bits TSN field, and it is based on the TSN of a data unit, and this TSN is indicated only in a header of the data unit. | 01-05-2012 |
20120099453 | Uplink Link Adaption at the User Equipment - Method and arrangement in a user equipment for link adaptation of signals sent from the user equipment to a base station. The base station and the user equipment are comprised within a wireless communication system. The method comprises receiving information from the base station, comprising an indication of resource blocks available for transmission of signals from the user equipment to the base station, obtaining at least one of a user equipment related parameter or a link related parameter, and selecting a subset of the indicated available resource blocks received from the base station, based on at least one of the measured user equipment related parameter or the measured link related parameter, to be used for sending signals to the base station. Also, a method and arrangement in a base station for assisting a user equipment in performing link adaptation of signals is presented. | 04-26-2012 |
20120147750 | Using the ECN Mechanism to Signal Congestion Directly to the Base Station - Techniques for a mobile station to signal a request for a reduction in data transmission rate to a base station are disclosed. An example method for facilitating flow control in a wireless communication system includes monitoring resource use associated with a mobile station and, based upon the resource use, setting a congestion indicator in a header of at least one uplink traffic data packet. The uplink traffic data packet is then sent to a wireless base station, which detects the congestion indicator. In some embodiments, ECN bits in an IP header of the uplink traffic data packet are set. In other embodiments, ECN bits in an IP header of a downlink traffic data packet are set, to trigger the generation of a TCP header that indicates congestion in subsequent uplink packets. | 06-14-2012 |
20120176951 | Mobile Terminal, Base Station and Methods Therein - Embodiments herein relate to a method in a mobile terminal ( | 07-12-2012 |
20120178456 | METHODS AND ARRANGEMENTS IN A MOBILE TELECOMMUNICATION SYSTEM - Methods and arrangements in a base station and a User Equipment are provided. The methods and arrangements relates to the scenario when the UE is handed over from a source base station to a target base station in a handover scenario, and wherein the target base station may not support functionalities which the source base station and the UE support. The method in the UE comprises receiving ( | 07-12-2012 |
20120188933 | Radio Resource Usage Optimisation In A Packet Network - A method of optimising the use of radio resources in a mobile radio communication system during a combinational multimedia session involving circuit switched and packet switched sessions between user terminals, the method comprising: disabling an in-sequence delivery option of packets between radio network control nodes of the radio access network(s) serving the user terminals for said packet switched session. | 07-26-2012 |
20120230261 | Mobile Terminal, Base Station and Methods Therein - Embodiments herein relate to a method in a mobile terminal ( | 09-13-2012 |
20130215907 | Communication with Compressed Headers - Communication efficiency may be enhanced by using compressed headers. In an example embodiment, a method is performed by a transmitting device to reduce header size. A mapping is created between a logical channel identifier and a compressed logical channel identifier. The compressed logical channel identifier occupies fewer bits than the logical channel identifier. The mapping is transmitted to a receiving device. A compressed header that includes the compressed logical channel identifier is formulated. A communication that includes the compressed header is transmitted to the receiving device. In another example embodiment, a method is performed by a receiving device to decode a header having a reduced size. A mapping and a communication including a compressed header are received. A compressed logical channel identifier is extracted from the compressed header. A logical channel identifier is recovered from the compressed logical channel identifier using the mapping. | 08-22-2013 |
20130244662 | Configuration of HS-DSCH Serving Cell Change Improvements - The present solution relates to a method in a user equipment for configuring a cell change procedure to be used for handover in a wireless communication network. The user equipment is situated in a serving cell and comprises an active set of cells. The active set of cells comprises a list of cells to which the user equipment can move from the serving cell. The user equipment sends a request to a network controller comprised in the wireless communication network to add at least one further cell to the active set. The user equipment then receives the requested active set update from the network controller. The received active set update comprises the at least one further cell to be added to the active set and a list of cells to which a modified cell change procedure shall be used for handover. A neighbour cell which is stronger than a current serving cell is detected. This detected stronger neighbour cell is matching with the received list of modified cell change procedure cells, and the modified cell change procedure for the handover to the stronger neighbour cell is applied if the stronger neighbour cell is found matching a cell on the list. | 09-19-2013 |
20130250877 | MAC-D Multiplexing in UTRAN HSDPA Wireless Networks - UTRAN MAC-d multiplexing of data from multiple logical channels to a single MAC-d flow is supported while reducing overhead and achieving octet alignment in MAC-d PDU length. In one embodiment, the C/T field of a multiplexed MAC-d PDU is eliminated, and the logical channels multiplexed into the MAC-d flow are mapped to a MAC-hs PQ in at least the NodeB (and preferably in the UE as well). In other embodiments, the C/T field is retained, and an octet-aligned length indicator is transmitted from the RNC to the UE. In one embodiment, the length indicator is octet-aligned by padding the MAC-d PDUs. In another embodiment, transmitters and receivers in the path from RNC to UE are configured with an offset to add to the length indicator to achieve octet alignment. The padding or offset is (8-n) bits, where n=the number of bits in C/T field. | 09-26-2013 |
20130258844 | METHOD AND ARRANGEMENT IN A WIRELESS COMMUNICATION NETWORK - Method and arrangement in a first node for requesting a status report from a second node. The first node and the second node are both comprised within a wireless communication network. The status report comprises positive and/or negative acknowledgement of data sent from the first node, to be received by the second node. The first node comprises a first counter configured to count the number of transmitted Protocol Data Units, PDUs, and a second counter configured to count the number of transmitted data bytes. The method and arrangements comprises initialising the first and the second counter to zero, transmitting data to be received by the second node, comparing the value of the first and the second counters with a first threshold limit value and a second threshold limit value and requesting a status report from the second node if any of the threshold limit values is reached or exceeded. | 10-03-2013 |
20130266001 | PROTOCOL SYNCHRONIZATION FOR HARQ BACKGROUND - A method and apparatus according to the present invention addresses and/or prevents lost protocol synchronization in HARQ systems caused by ACK/NACK errors. One embodiment detects lost synchronization errors for NDI-based retransmission protocols and restores synchronization by sending an explicit RESET message. In response to the RESET message, the transmitter aborts the transmission of a current PDU and transmits a new PDU and corresponding NDI. Another embodiment prevents protocol synchronization errors by sending scheduling grants on a packet by packet basis. The receiver sends a subsequent explicit scheduling grant to the transmitter based on an error evaluation of a received PDU. The transmitter will not send the next PDU unless it receives the subsequent explicit scheduling grant. | 10-10-2013 |
20140006892 | METHOD AND SYSTEM FOR RETRANSMISSION | 01-02-2014 |
20140153483 | L1 CONTROL SIGNALING FOR UTRAN HSDPA - A Level-1 (L1) signaling flag is mapped to unused (invalid) bit sequences in Part 1 of the HS-SCCH—that is Part 1 bit encodings that are not defined in the UTRAN specifications—and a corresponding L1 command is encoded in Part 2. This allows UE ( | 06-05-2014 |
20140153521 | Methods and Arrangements in a Mobile Telecommunications Network - The present invention relates to method and arrangements for using an identifier of a predefined type, e.g. an RNTI identifying one configuration on an out-band control channel for activating the configuration identifiable by that identifier. The identifier is sent from the network to the UE, when a configuration corresponding to that identifier is to be activated. This implies that both the UE and the radio base station comprise a mapping between each configuration and the corresponding identity of each configuration. | 06-05-2014 |
20140162594 | Method and Apparatus for Measurement of Active User Devices Per Quality-of-Service Class Indicator - Methods, apparatus, and systems for measuring, on a per-QoS-class basis, the average number of user devices active on the uplink of a wireless communication system are disclosed. In an exemplary method, a number of mobile terminals with buffered data for transmission to a base station is estimated based on received buffer status reports. An estimated quantity of active mobile terminals is calculated, based on the received buffer status reports and a number of mobile terminals for which a semi-persistent scheduling grant has been granted. In some embodiments, the estimated quantity of active mobile terminals is estimated on a per-traffic-class basis, in which case the technique includes calculating first and second estimated quantities, corresponding to mobile terminals having active data bearers for first and second traffic classes, respectively, based on the received buffer status reports and the number of mobile terminals for which a semi-persistent scheduling grant has been granted. | 06-12-2014 |
20140194108 | METHOD AND ARRANGEMENT IN A COMMUNICATION SYSTEM - The present invention relates to a method and an arrangement for reducing a state transition time from a power saving state for a user equipment ( | 07-10-2014 |
20140219231 | Method For Mapping Logical Channel On Shared Channel - According to the invention data in a number of logical downlink intended for one or more mobile terminals are received in a first mapping unit, where at least a first High Speed Radio Network Temporary identity is allocated to these logical downlink channels addressing a group of mobile terminals for allowing transmission of channel data for reception by mobile terminals. A mobile terminal then reads, from a Broadcast Control Channel, necessary information including a High Speed Radio Network Temporary identity allocated to at least one logical downlink channel, where at least said first identity exists among possible identities. It then listens to a high speed shared control channel for the read identity. In case it detects the identity, the terminal follows a scheduling command, receives data on a high-speed downlink shared channel and processes said data. | 08-07-2014 |
20140369314 | Method and Apparatus for Seamless Handover in a Wireless Communication Network - In a wireless communication network where base stations receive protocol data units (PDUs) from mobile stations for decompression and deciphering for ordered, sequential transfer as service data units (SDUs) to an associated core network, the teachings presented herein provide a method of supporting seamless handover of a mobile station from a source base station to a target base station. By way of example, the teachings herein apply to a network based on the E-UTRA specifications, as promulgated by the 3GPP. However, that example is non-limiting, as the teachings herein apply to any network that employs in-sequence data delivery and duplicate data detection at handover. Broadly, the source base station forwards out-of-sequence SDUs and corresponding sequence number information to the target base station in support of seamless handover, and the target base station uses that information to request retransmissions as needed for packet reordering. | 12-18-2014 |