Patent application number | Description | Published |
20120135741 | METHOD, DEVICE AND USER EQUIPMENT FOR CONFIGURING REFERENCE SIGNAL - Embodiments of the present invention relate to a method, device and user equipment for configuring a reference signal (RS). The method includes: acquiring group number information of a RS allocated for a UE respectively by each cell; acquiring, according to the group number information, group offset information of a RS of a UEm served by at least two cells at the same time in the UE; and sending the group offset information to the UEm, so that the UEm acquires new group number information according to the allocated group number information of the RS and the group offset information, and sends a RS according to the new group number information. In the method, a RS is sent according to new group number information, thereby avoiding interference generated by a UE in each cell on a scheduled UEm when an eNB schedules the UEm. | 05-31-2012 |
20130250886 | METHOD, BASE STATION AND USER EQUIPMENT FOR TRANSMITTING CHANNEL QUALITY INFORMATION - Methods and apparatus are provided for transmitting channel quality information. User equipment receives a control signaling for uplink scheduling. The control signaling for uplink scheduling includes at least one modulation and coding scheme (MCS) field, a channel quality information request field, and a resource block allocation field indicating the number of resource blocks (RBs), N | 09-26-2013 |
20130286958 | METHOD, BASE STATION, AND USER EQUIPMENT FOR ACCESSING PHYSICAL RANDOM ACCESS CHANNEL - A method, a base station, and a user equipment for PRACH access are provided. The method includes: determining a PRACH sequence group used by multiple base stations, where the multiple base stations use a same cell identity and include a macro base station and at least one pico base station, the PRACH sequence group includes k1 first PRACH sequences, k2 second PRACH sequences, k3 third PRACH sequences, k4 fourth PRACH sequences, k5 fifth PRACH sequences, and k6 sixth PRACH sequences, k1 and k4 are positive integers, and k2, k3, k5, and k6 are nonnegative integers; and sending an indication parameter of the PRACH sequence group to the UE for the UE to randomly access a network, where the indication parameter is used for indicating the first PRACH sequences to the sixth PRACH sequences. thereby the fierceness of contention access to a PRACH can be reduced. | 10-31-2013 |
20140086093 | REFERENCE SIGNAL SEQUENCE CONFIGURATION METHOD AND NETWORK DEVICE - An implementation manner of the present invention provides a reference signal sequence configuration method. The method includes: selecting, by a network device and from candidate IDs, an ID used for generating a reference signal initialization sequence for a terminal, where the candidate IDs include at least two IDs, and the selected ID does not include a scrambling ID; and generating a reference signal initialization sequence for the terminal according to the selected ID. An implementation manner of the present invention further provides a network device. In the reference signal sequence configuration method and the network device, a reference signal initialization sequence is generated according to the selected ID, thereby providing a manner of generating a reference signal initialization sequence different from the manner in the prior art. | 03-27-2014 |
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 |
20140321399 | METHODS FOR TRANSMITTING AND RECEIVING CONTROL CHANNEL, BASE STATION, AND USER EQUIPMENT - Embodiments of the present invention provide methods for transmitting and receiving a control channel, a base station, and a user equipment, which relate to the communication field, and can solve a transmission problem of available changing transmission resources caused by introduction of an E-PDCCH. A method for configuring a control channel resource includes: determining, by a base station according to a system configuration and/or user configuration, resource elements REs included in an extended control channel element E-CCE, and transmitting an extended physical downlink control channel E-PDCCH to a user equipment, where the E-PDCCH is carried by the E-CCE; and receiving, by the user equipment, the E-PDCCH, and obtaining the REs included in the E-CCE, and receiving, over the REs included in the E-CCE, the E-PDCCH transmitted by the base station. The embodiments of the present invention are used for configuring and detecting a control channel resource. | 10-30-2014 |
20140334408 | METHOD FOR MAPPING CONTROL CHANNEL RESOURCES, BASE STATION, AND USER EQUIPMENT - Embodiments of the present invention provide a method for mapping control channel resources, a base station, and a user equipment. The method for mapping control channel resources includes: determining, by a base station, the number of E-CCEs multiplexed in one resource set, where the E-CCEs are borne over REs for transmission in the resource set, and the E-CCEs constitute an E-PDCCH; sending the E-PDCCH to a user equipment according to the determined number of E-CCEs multiplexed in one resource set; and receiving, by the user equipment, the E-PDCCH, and obtaining the number of E-CCEs multiplexed in one resource set. The embodiments of the present invention apply to a resource mapping. | 11-13-2014 |
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 |
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 |
20150063284 | METHOD, USER EQUIPMENT, AND BASE STATION FOR GENERATING PILOT SEQUENCE - The present invention discloses are a method, a user equipment, and a base station for generating a pilot sequence. The method includes: determining a first parameter used to generate a pilot sequence in a first parameter candidate set, where the first parameter candidate set includes at least two timeslot numbers of the following timeslot numbers: a timeslot number obtained after downlink synchronization, a predefined timeslot number, timeslot numbers in a second type pilot configuration parameter, a timeslot number obtained from a high layer notification, and a timeslot number obtained from a dynamic notification, where a second type pilot is different from a pilot corresponding to the pilot sequence; and generating the pilot sequence according to the first parameter. | 03-05-2015 |
20150131591 | Method for Assigning Number of Control Channel Candidates and Number of Blind Detection Times, Base Station, and User Equipment - The present invention provides a method for assigning the number of control channel candidates and the number of blind detection times, a base station, and a user equipment. The method includes determining a first aggregation level set {L | 05-14-2015 |
Patent application number | Description | Published |
20130142150 | METHOD, BASE STATION AND USER EQUIPMENT FOR TRANSMITTING PHYSICAL RESOURCE BLOCKS AND ESTIMATING CHANNELS - A method, a base station and a user equipment for transmitting physical resource blocks and estimating channels are provided. The method includes: scheduling, by a base station, M PRBs for the user equipment, and configuring reference signal patterns for the M PRBs as following: allocating (X−1)M+1 demodulation reference signal subcarriers for M PRBs in a frequency domain, configuring only one demodulation reference signal subcarrier within a range of (−N, N] subcarriers in a border of every two PRBs, where locations of the rest (X−2)M+2 demodulation reference signal subcarriers keep consistent with locations of demodulation reference signal subcarriers in M contiguous first demodulation reference signal patterns in a frequency domain; and transmitting the configured M PRBs to the user equipment, so that the user equipment performs joint channel estimation according to the configured M PRBs. This saves reference signal overheads and optimizes data transmission rate. | 06-06-2013 |
20140162717 | UPLINK POWER CONTROL METHOD, USER EQUIPMENT AND BASE STATION - Embodiments of the present disclosure provide an uplink power control method, a user equipment and a base station. The method comprises: receiving configuration information of a channel state information reference signal CSI-RS from the base station, wherein the configuration information of the CSI-RS comprises reference signal port information and reference signal power information; and measuring a path loss for uplink power control based on the configuration information of the CSI-RS. The embodiments of the present disclosure use the CSI-RS to measure the path loss, which differs from a common CRS in that the CSI-RS may aim at a specific base station. Therefore, path loss measurement may be performed in respect of a target base station of uplink transmission, enabling the path loss compensation to match the actual path loss, thus improving the performance of uplink power control. | 06-12-2014 |
20140341163 | METHOD, ENODEB AND USER EQUIPMENT FOR TRANSMITTING RANDOM ACCESS RESPONSE MESSAGES - A method, an eNodeB and a User Equipment for transmitting Random Access Response messages are provided. The method includes: receiving Random Access Preamble transmitted by the UE through the Random Access Channel; according to the RAP, determining whether the UE belongs to the central group or the edge group of the Random Access Area; after determining that the UE belongs to the central group of the RAA, determining the RAA which the UE belongs to; transmitting the first RAR message to the UE according to the RAP, the channel resource information of the RACH, and the RAA. By transmitting the RAR message on the basis of the RAP and the RAA, the method, eNB and UE for transmitting RAR messages enable different RAR messages to be transmitted with respect to identical Random Access requests of different RAAs. | 11-20-2014 |
20150078486 | CODE MODULATION AND DEMODULATION METHOD AND APPARATUS FOR HIGH ORDER MODULATION - Disclosed are a code modulation method and apparatus for high order modulation. The method comprises: converting information that needs to be transmitted into a bit data stream, and demultiplexing the bit data stream into more than one channel of bit data stream; performing first-type coding on at least one channel of bit data stream in the more than one channel of stream, to obtain first output data; performing second-type coding on at least one channel of the remaining channels of bit data stream on which the first-type coding is not performed, to obtain second output data; and performing quadrature amplitude modulation on the first output data, to generate a modulation symbol for output. Compared with the prior art, the correctness rate of demodulation in the technical solution is improved significantly, achieving higher transmission efficiency. | 03-19-2015 |
20150103956 | HIGH ORDER MODULATION METHOD, DEMAPPING METHOD, AND CORRESPONDING DEVICE - A high order modulation method, a demapping method, and a corresponding device are provided. With the high order modulation method, important bits is distinguished, and the important bits are divided into important bits for distinguishing large regions and important bits for distinguishing small regions according to the difficulty of judgment areas. Therefore, the judgment accuracy rate of a demodulator is further improved. | 04-16-2015 |