Patent application number | Description | Published |
20110212730 | METHOD IN A WIRELESS COMMUNICATION SYSTEM - A method in a Central Node (CN), a method in a Remote Node (RN), and a method in a wireless communication system for allocating reference signals to be used for uplink transmission are disclosed. According to one aspect reference signals are allocated with a method comprising the steps of: determining in a CN a number of reference signals N to be used for uplink transmission by a Remote Node RN; indicating to the RN the number of reference signals N to be used for uplink transmission by the RN; configuring an uplink transmission by the RN with at most the number of reference signals N; and performing by the RN the uplink transmission with at most the number of reference signals N on transmit antennas comprised in the RN. The present invention further discloses a CN and a RN relating to said methods. | 09-01-2011 |
20110274024 | METHOD AND USER EQUIPMENT FOR TRANSMITTING MULTIPLE A/N INFORMATION - A method and a user equipment (UE) for transmitting multiple A/N information are provided. The method includes: determining reserved resources; determining A/N information that needs to be transmitted; and determining that the number of transmission resources is N (N is an integer greater than or equal to 2) and corresponding modulation symbols according to the number of the reserved resources and the A/N information that needs to be transmitted; and transmitting multiple A/N information by transmitting the modulation symbols by using the transmission resources. By transmitting multiple A/N information, a downlink frequency band where an error occurs can be correctly located. The A/N information includes acknowledgement (ACK) information, negative acknowledgement (NACK) information or Discontinuous Transmission (DTX) state information. | 11-10-2011 |
20110286423 | METHOD FOR GENERATING REFERENCE SIGNALS - The present disclosure relates to a method for generating reference signals in a cellular wireless communication system having a set of resource blocks. Each resource block includes a plurality of resource elements. Each reference signal is associated with an antenna port in a cell. At least one reference signal in a cell is transmitted on at least one resource element only in resource blocks belonging to a subset of said set of resource blocks. The method includes shifting frequency in the resource blocks in the subset of resource blocks. The frequency shifting of the resource blocks belonging to said subset of resource blocks is cell-specific and is determined from an integer sequence having a length less than or equal to a total number of cell identities in said cellular wireless communication system. The disclosure also relates to methods and devices for transmitting and receiving such reference signals; and to a device for generating reference signals. | 11-24-2011 |
20110286548 | METHOD AND SYSTEM FOR ASSIGNING REFERENCE SIGNALS IN A MULTI-ANTENNA CONTEXT - A method and system of assigning reference signals to antennas and nodes in a wireless communication system, the wireless communication system comprising N number of transmitting nodes, wherein N is an integer N≧1, is disclosed. The transmitting nodes are transmitting reference signals in a first slot and a second slot within sub-frames, over the same bandwidth. Each transmitting node has at least one transmit antenna, wherein different nodes can have different number of transmit antennas. The reference signals are of two different types, a first type of reference signals used for demodulation, and a second type of reference signals used for measurements. According to the method, reference signals of the first type is assigned to a number of transmitting nodes with at least one transmit antenna in the first and second slot in a predefined bandwidth; and reference signals of the second type is assigned to at least one transmitting node with at least transmit antennas in at least one of the first and second slot in a predefined bandwidth. | 11-24-2011 |
20110293037 | METHOD FOR TRANSMITTING REFERENCE SIGNALS - A method and apparatus for transmitting reference signals in a wireless communication system is disclosed. The method and apparatus includes reference signal, RS, transmission in resource blocks supporting multiple antenna port transmission, at least one broadcast channel being provided in resource blocks belonging to a first set of resource blocks, a first number of reference signals being transmitted in at least one resource block supporting multiple antenna port transmission and a second number of reference signals being transmitted in at least one resource block belonging to a second set of resource blocks. Preferably, different resource elements, REs, are used for each reference signal in resource blocks. An example embodiment of reference signal support of, e.g., eight antenna ports is provided. | 12-01-2011 |
20120026966 | METHOD, APPARATUS AND SYSTEM FOR DETERMINING RESOURCE INDICES - The present invention relates to a method, apparatus and system for determining resource indices in a wireless communication system, which explores and implements for at least two control channel elements (CCEs) for a user equipment (UE), maps the CCEs to at least two resource indices for the UE according to a predetermined mapping rule. It can determine multiple resource indices to a UE implicitly according to some embodiments of the present invention. | 02-02-2012 |
20120034928 | METHOD IN A WIRELESS COMMUNICATION SYSTEM - A method in a Central Node (CN), a method in a Remote Node (RN), and a method in a wireless communication system for allocating reference signals to be used for uplink transmission are disclosed. According to one aspect reference signals are allocated with a method comprising the steps of: determining in a CN a number of reference signals N to be used for uplink transmission by a Remote Node RN; indicating to the RN the number of reference signals N to be used for uplink transmission by the RN; configuring an uplink transmission by the RN with at most the number of reference signals N; and performing by the RN the uplink transmission with at most the number of reference signals N on transmit antennas comprised in the RN. The present disclosure further discloses a CN and a RN relating to the methods. | 02-09-2012 |
20120039342 | ARRANGEMENT AND METHOD FOR IMPROVING HARQ FEEDBACK IN TELECOMMUNICATION SYSTEMS - A method for execution on an apparatus configured to operate in a telecommunications network comprising a processor, wherein said processor is configured to execute said method, said method comprising encoding a plurality of uplink feedback information elements for carrier aggregation, by a set of codewords where each codeword comprises a channel, wherein at least two information elements have the same channel distribution. | 02-16-2012 |
20120063494 | PRECODING CODEBOOK AND FEEDBACK REPRESENTATION - The invention relates to a technical field of multiple-antenna transmission in a wireless communication system. Communication of feedback representation of and generating a codebook suitable for precoding of multiple-antenna transmission is disclosed. An example matrix representation of precoding of a first number of antenna ports comprises precoding sub-matrices of less antenna ports. | 03-15-2012 |
20120155368 | Method and Device for Service Time Division Multiplexing - A method and device for service time division multiplexing as well as a method and a device for transmitting service are disclosed. The method for service time division multiplexing includes: selecting a part or all of radio frames in one time unit as specific radio frames; and selecting a part or all of subframes in the specific radio frames as specific subframes for sending a specific service. The specific service is a multimedia broadcast multicast service, or a unicast service, or one or more than one kind of services transmitted in broadcast or multicast mode. | 06-21-2012 |
20120155369 | Method and Device for Service Time Division Multiplexing - A method and device for service time division multiplexing as well as a method and a device for transmitting service are disclosed. The method for service time division multiplexing includes: selecting a part or all of radio frames in one time unit as specific radio frames; and selecting a part or all of subframes in the specific radio frames as specific subframes for sending a specific service. The specific service is a multimedia broadcast multicast service, or a unicast service, or one or more than one kind of services transmitted in broadcast or multicast mode. | 06-21-2012 |
20120182956 | METHOD FOR TRANSMITTING REFERENCE SIGNALS - A method and apparatus for transmitting reference signals in a wireless communication system is disclosed. The method and apparatus includes reference signal, RS, transmission in resource blocks supporting multiple antenna port transmission, at least one broadcast channel being provided in resource blocks belonging to a first set of resource blocks, a first number of reference signals being transmitted in at least one resource block supporting multiple antenna port transmission and a second number of reference signals being transmitted in at least one resource block belonging to a second set of resource blocks. Preferably, different resource elements, REs, are used for each reference signal in resource blocks. An example embodiment of reference signal support of, e.g., eight antenna ports is provided. | 07-19-2012 |
20120275386 | Reporting of Channel State Information - A transmit node device includes a receiver that is configured to receive a first sub-index and, for each of one or more matrices, a second sub-index. The first and second sub-indices have different time-frequency reporting granularity. The transmit node device also includes a processor that is configured to reconstruct each of the one or more matrices, which are indexed by the first and second sub-indices. | 11-01-2012 |
20130022008 | Method and Apparatus of Communication - In a radio communication system, a number of downlink component carriers can be aggregated for communication between a network node and a User Equipment (UE). A set of downlink component carriers is determined from the number of downlink component carriers. A downlink control channel for the UE is arranged to include information being usable for identifying at least one downlink component carrier of the set of downlink component carriers. A channel quality report is to be provided for each one of the at least one identified downlink component carrier. | 01-24-2013 |
20130148610 | FEEDBACK INFORMATION RELATING TO A MOBILE COMMUNICATIONS SYSTEM USING CARRIER AGGREGATION - The invention relates to a method for encoding a number of feedback information messages in a mobile radio communications system using carrier aggregation, the method comprising:encoding the number of feedback information messages by a set of codewords, where each feedback information message can be of at least a first kind or a second kind. The method is distinguished by that for at least one feedback information message there is at least one codeword corresponding to information of the first kind and at least one codeword corresponding to information of the second kind, wherein the modulation symbol of one of said at least one codeword corresponding to information of the first kind and the modulation symbol of one of said at least one codeword corresponding to information of the second kind have a maximum distance. The invention also relates to a mobile terminal and radio basestation for a communications system. | 06-13-2013 |
20130176963 | ARRANGEMENT AND METHOD FOR IMPROVING HARQ FEEDBACK IN TELECOMMUNICATION SYSTEMS - A method for execution on an apparatus configured to operate in a telecommunications network comprising a processor, wherein said processor is configured to execute said method, said method comprising encoding a plurality of uplink feedback information elements for carrier aggregation, by a set of codewords where each codeword comprises a channel, wherein at least two information elements have the same channel distribution. | 07-11-2013 |
20130182786 | Reporting of Channel State Information - A receive node device includes a processor coupled to a memory. The processor is configured to report a first sub-index and to report at least one additional second sub-index for each one of one or more matrices. Each one of the one or more matrices is indexed by the first sub-index and the second sub-index. The first sub-index and the second sub-index have different time-frequency reporting granularity. | 07-18-2013 |
20130194956 | System and Method for Common Control Channels in a Communications System - A method for operating a communications controller includes selecting a search space configuration out of a set of candidate search space configurations for a user equipment served by the communications controller, wherein the search space configuration specifies one or more search spaces to be monitored out of a set of search spaces, and signaling the selected search space configuration to the user equipment. | 08-01-2013 |
20130301561 | System and Method for Antenna Port Association - In one embodiment, a method for antenna port association includes determining a permutation index in accordance with a user equipment (UE) specific configuration parameter of a UE and determining a mapping of a first plurality of physical resource elements to a second plurality of antenna ports in accordance with the permutation index. The method also includes receiving, by the UE, data in a first antenna port of the second plurality of antenna ports in accordance with the mapping. | 11-14-2013 |
20130315176 | FEEDBACK INFORMATION RELATING TO A MOBILE COMMUNICATIONS SYSTEM USING CARRIER AGGREREGATION - The invention relates to a method for encoding a number of feedback information messages in a mobile radio communications system using carrier aggregation, the method comprising: encoding the number of feedback information messages by a set of codewords, where each feedback information message can be of at least a first kind or a second kind. The method is distinguished by that for at least one feedback information message there is at least one codeword corresponding to information of the first kind and at least one codeword corresponding to information of the second kind, wherein the modulation symbol of one of said at least one codeword corresponding to information of the first kind and the modulation symbol of one of said at least one codeword corresponding to information of the second kind have a maximum distance. The invention also relates to a mobile terminal and radio basestation for a communications system. | 11-28-2013 |
20140029689 | Method in a Wireless Communication System - The present invention relates to a method including signalling by a receive node at least one first transmission rank r to a transmit node, where 1≦r≦R, wherein R is a maximum available rank for a transmission, and at least one predefined precoding matrix corresponds to said first transmission rank r, determining by said transmit node a second transmission rank r′ for transmitting data from said transmit node to said receive node, where 1≦r′≦R, defining at least two subsets of precoding matrices for at least one of said at least one first transmission rank r, selecting one of said at least two subsets of precoding matrices in accordance with a channel quality estimate for a radio channel, and signalling said selected one subset of precoding matrices, wherein said selected one subset of precoding matrices is associated with said at least one predefined precoding matrix. | 01-30-2014 |
20140050172 | METHOD, APPARATUS AND SYSTEM FOR DETERMINING RESOURCE INDICES - The present invention relates to a method, apparatus and system for determining resource indices in a wireless communication system, which explores and implements for at least two control channel elements (CCEs) for a user equipment (UE), maps the CCEs to at least two resource indices for the UE according to a predetermined mapping rule. It can determine multiple resource indices to a UE implicitly according to some embodiments of the present invention. | 02-20-2014 |
20140071909 | Method and Apparatus of Wireless Communications - Uplink sounding comprising sending one or more representations of a sounding request or a sounding request and configuration information indicator of uplink sounding in a wireless radio communication system is disclosed. | 03-13-2014 |
20140080497 | METHOD IN A WIRELESS COMMUNICATION SYSTEM - A method in a Central Node (CN), a method in a Remote Node (RN), and a method in a wireless communication system for allocating reference signals to be used for uplink transmission are disclosed. According to one aspect reference signals are allocated with a method comprising the steps of: determining in a CN a number of reference signals N to be used for uplink transmission by a Remote Node RN; indicating to the RN the number of reference signals N to be used for uplink transmission by the RN; configuring an uplink transmission by the RN with at most the number of reference signals N; and performing by the RN the uplink transmission with at most the number of reference signals Non transmit antennas comprised in the RN. The present disclosure further discloses a CN and a RN relating to the methods. | 03-20-2014 |
20140105057 | METHOD AND USER EQUIPMENT FOR DETERMINING CONTROL CHANNEL RESOURCE - The present invention discloses a method and a user equipment for determining a control channel resource. The method includes: detecting a downlink control channel that carries scheduling information of a downlink data channel and is sent by a base station, where the downlink control channel is formed by at least one control channel logical element, and the at least one control channel logical element is mapped to at least one antenna port; acquiring at least one of antenna port information of a first antenna port corresponding to a first control channel logical element of the successfully detected downlink control channel and an offset, and sequence number information of the first control channel logical element; and determining, according to at least one of the antenna port information and the offset, as well as the sequence number information. | 04-17-2014 |
20140105148 | Data Transmission Method and User Equipment - A data transmission method includes mapping a state expressed by information elements into two transmit groups. A first sequence and a second sequence in each transmit group are determined according to a first channel in the same channel group of the at least one channel group. In each transmit group, the second sequence is used to spread the modulation symbol. The spread modulation symbol and the first sequence or multiplexed into one resource block. The resource block is transmitted over an antenna or an antenna port defined by the first sequence. | 04-17-2014 |
20140105162 | METHOD AND APPARATUS FOR TRANSMITTING CONTROL SIGNALING - The present invention discloses a method and an apparatus for transmitting control signaling. The method includes: determining that a physical downlink shared channel PDSCH transmission scheme for a non-backward compatible component carrier is a user equipment-specific reference signal UE RS-based non-precoding matrix indicator Non-PMI feedback transmission scheme or a UE RS-based up to 8 layer transmission scheme; and sending downlink control information DCI to a UE, where the DCI is used to indicate the determined PDSCH transmission scheme. The apparatus includes a determining module and a first sending module. The method and apparatus in embodiments of the present invention can expand application scenarios of the non-backward compatible component carrier, increase spectrum utilization of the system, and avoid a system capacity decrease problem caused by limitations on the application scenarios of the non-backward compatible component carrier. | 04-17-2014 |
20140119336 | METHODS AND RELATED DEVICES FOR SENDING AND RECEIVING UPLINK CONTROL SIGNALING - Embodiments of the present invention disclose methods and related devices for sending and receiving uplink control signaling. On a terminal side, the terminal performs data processing and resource mapping separately for the uplink control signaling and uplink data that are scheduled by a base station, so as to obtain a frequency domain signal, where the performing resource mapping separately refers to mapping the data-processed uplink control signaling and uplink data to different resource block groups in a system bandwidth separately; and the terminal performs frequency-to-time conversion for the obtained frequency domain signal to obtain a time domain signal, and then sends the signal to the base station. | 05-01-2014 |
20140140310 | METHODS AND APPARATUSES FOR RECEIVING AND SENDING CONTROL CHANNEL - Embodiments of the present invention disclose methods and apparatuses for receiving and sending a control channel, and are applicable to the field of communications technologies. In the embodiments of the present invention, a base station carries scheduling information of a user equipment of an R11 system in both the PDCCH region and the E-PDCCH region of a downlink subframe. In this way, the user equipment needs to detect the control channel within the PDCCH region and the E-PDCCH region, so that resources of the two regions are available to the user equipment of the R11 system. Moreover, the user equipment detects only the control channel of the first type in the PDCCH region, and detects control channels of the other type in the E-PDCCH region. The method in the embodiments of the present invention does not increase the number of control channel detections. | 05-22-2014 |
20140219372 | ARRANGEMENT AND METHOD FOR IMPROVING HARQ FEEDBACK IN TELECOMMUNICATION SYSTEMS - A method for execution on an apparatus configured to operate in a telecommunications network comprising a processor, wherein said processor is configured to execute said method, said method comprising encoding a plurality of uplink feedback information elements for carrier aggregation, by a set of codewords where each codeword comprises a channel, wherein at least two information elements have the same channel distribution. | 08-07-2014 |
20140241311 | METHOD FOR TRANSMIT DIVERSITY OF HARQ-ACK INFORMATION FEEDBACK - The present invention relates to a method for transmit diversity of HARQ-ACK information feedback in a wireless communication system, said system being adapted to employ transmit diversity and non-transmit diversity transmissions of HARQ-ACK information feedback, said method comprising: assigning uplink control channel resources and modulation symbols to HARQ-ACK states for at least two antenna ports such that said HARQ-ACK states are abled to be transmitted when associated uplink control channel resources are implicitly reserved, wherein at least one of said uplink control channel resources is assigned to more than one of said at least two antenna ports, and wherein uplink control channel resources and modulation symbols assigned to HARQ-ACK states for one of said at least two antenna ports is the same as when non-transmit diversity of HARQ-ACK information feedback is employed; and transmitting HARQ-ACK states assigned according to said assignment step on said at least two antenna ports. | 08-28-2014 |
20140307661 | METHOD AND DEVICE FOR TRANSMITTING DATA ON A PHYSICAL UPLINK CONTROL CHANNEL - When user equipments UEs in a cell have the same common cell identifier, the method includes: determining a first basic sequence according to the common cell identifier, and determining, according to the first basic sequence and correspondence between the first basic sequence and at least one second basic sequence, a first sequence group including the basic sequence and the at least one second basic sequence, where the at least one second basic sequence is obtained according to a correlation with the first basic sequence; determining a target basic sequence in the first sequence group; cyclically shifting the target basic sequence in a cyclic shift manner determined by negotiating with a base station, to obtain a sequence for sending a PUCCH; and sending the PUCCH according to the PUCCH sequence. | 10-16-2014 |
20140314018 | PILOT RESOURCE ALLOCATION METHOD AND DEVICE - Various embodiments of the present invention provide a pilot resource allocation method, where the method includes: determining, according to an aggregation level and multiplexing information of an enhanced control channel element E-CCE in a resource block pair, the number of resource elements REs that are allocated to and occupied by a demodulation pilot signal DMRS in the resource block pair. Various embodiments of the present invention further provide a corresponding user equipment. By implementing the method and device, the efficiency of time-frequency resource utilization can be improved. | 10-23-2014 |
20140314029 | METHOD AND BASE STATION FOR TRANSMITTING DATA BLOCK - A method and a base station of transmitting a data block are provided. At least one data block is transmitted via at least one of at least two downlink frequency bands. A modulation symbol and N spreading sequences are received. Acknowledgement/negative acknowledgement (A/N) information is determined in accordance with the modulation symbol and the N spreading sequences. The modulation symbol and the N spreading sequences jointly determine the A/N information. And the at least one data block may be retransmitted depending on the A/N information determined. | 10-23-2014 |
20140341180 | DEMODULATION REFERENCE SIGNAL PROCESSING METHOD, BASE STATION AND USER EQUIPMENT - The embodiments of the present invention provide a demodulation reference signal processing method, a base station and a user equipment. A processing method includes: generating, by a base station, a DMRS corresponding to an E-PDCCH by using information that is available before a UE receives the E-PDCCH sent by the base station; and mapping, by the base station, the DMRS onto a time-and-frequency resource corresponding to a downlink control channel region and used for transmitting a reference signal, and sending the DMRS to the UE. In the technical solutions of the embodiments of the present invention, the base station and the UE no longer use an SCID for generating the DMRS, which solves the problem that the UE cannot obtain the SCID before receiving the E-PDCCH and cannot generate the DMRS, and further, cannot demodulate the E-PDCCH, and enables demodulation of the E-PDCCH. | 11-20-2014 |
20140355559 | CONTROL CHANNEL RESOURCE TRANSMISSION METHOD, BASE STATION AND USER EQUIPMENT - Embodiments of the present invention provide a control channel resource transmission method, a base station and a user equipment which can ensure balance between performance of E-CCEs on a resource set, and further ensure scheduling and receiving performance of the E-CCEs. A control channel resource transmission method includes: mapping, by a base station, more than one enhanced control channel element E-CCE onto a resource set, where each E-CCE is mapped onto a corresponding first resource subset and a corresponding second resource subset respectively, so that each E-CCE occupies a resource of the same size or a difference between sizes of resources occupied by the E-CCEs is less than a preset threshold, where the E-CCEs are carried on the resource set for transmission; and transmitting the resource set that carries the E-CCEs to a user equipment; and demodulating, by the user equipment, the resource set and performing receiving. | 12-04-2014 |
20140355709 | METHOD AND APPARATUS FOR TRANSMITTING DATA - Embodiments of the present invention disclose a method and an apparatus for transmitting data, and the method includes: first setting at least two second resource groups in each first resource group of at least one first resource group, and setting at least two reference signals in each of the second resource groups; then encoding data to be transmitted and generating two data streams from the encoded data; then, mapping the two data streams onto an available resource element of two different antenna ports, in which the reference signals corresponding to the two different antenna ports are set on two different second resource groups; and finally, transmitting, on the available resource element of the two different antenna ports, data on the two antenna ports. The present invention is applicable to the field of communications systems. | 12-04-2014 |
20140362806 | RANDOM ACCESS PROCESSING METHOD AND DEVICE - Embodiments of the present invention provide a method and a device for processing random access. The method includes: detecting a random access preamble sequence which is sent by a user equipment (UE) according to configuration information; determining a control channel corresponding to the detected random access preamble sequence, and scheduling random access response information corresponding to the random access preamble sequence by using the control channel. | 12-11-2014 |
20150023311 | APPARATUS, SYSTEM, AND METHOD FOR SIGNALLING A QUANTITY OF ANTENNA PORTS IN A WIRELESS COMMUNICATION SYSTEM - A quantity of antenna ports of a transmitting apparatus is signalled in a wireless communication system. The quantity of antenna ports of the transmitting apparatus is encoded into a first type information and a second type information. The first type information is transmitted on a physical broadcast channel (PBCH); and the second type information is transmitted on a physical downlink shared channel (PDSCH). The PDSCH is transmitted on at least one antenna port indicated by the first type information. | 01-22-2015 |
20150055543 | METHOD AND DEVICE FOR SERVICE TIME DIVISION MULTIPLEXING - A method and device for service time division multiplexing as well as a method and a device for transmitting service are disclosed. The method for service time division multiplexing includes selecting a part or all of radio frames in one time unit as specific radio frames; and selecting a part or all of subframes in the specific radio frames as specific subframes for sending a specific service. The specific service is a multimedia broadcast multicast service, or a unicast service, or one or more than one kind of services transmitted in broadcast or multicast mode. | 02-26-2015 |