Patent application number | Description | Published |
20110170508 | METHOD AND APPARATUS FOR SELECTING DOWNLINK PRIMARY CARRIER FOR TRANSMITTING DATA - A method, an apparatus and a system for selecting a downlink primary carrier for transmitting data are disclosed. The method includes the following steps: A terminal obtains primary carrier selection information configured by a network; and the terminal determines a downlink carrier corresponding to an uplink carrier of the terminal as a downlink primary carrier for transmitting data according to the primary carrier selection information. In the embodiments of the present invention, the network selects a downlink carrier corresponding to an uplink carrier of the terminal as a downlink primary carrier for transmitting data. The terminal needs to detect only the downlink primary carrier, and the downlink carrier needs to be switched or detected only if the primary carrier receives a signaling message for detecting or receiving other carriers, so it is not necessary to switch or detect the downlink carrier frequently, which reduces battery consumption of the terminal. | 07-14-2011 |
20120236812 | Method, Base Station, and User Equipment for Feeding Back ACK/NACK Information for Carrier Aggregation - The present invention provides a method, a base station, and a user equipment for feeding back ACK/NACK information for carrier aggregation. The method includes: configuring a common field preset in DCI as at least one type of command field related to ACK/NACK feedback of at least two types of command fields related to ACK/NACK feedback, where the common field can be configured as the command fields related to ACK/NACK feedback; and sending the DCI to a user equipment, so that the user equipment feeds back ACK/NACK information according to the DCI. The present invention may realize backward compatibility of the ACK/NACK information feedback with an LTE system in carrier aggregation. | 09-20-2012 |
20130016686 | METHOD, SYSTEM AND APPARATUS OF MULTI-SUBFRAME SCHEDULING - The present invention discloses a method, system and apparatus of multi-subframe scheduling. The method of multi-subframe scheduling comprises: sending a terminal a continuous scheduling indication, a first Hybrid Automatic Repeat Request (HARQ) process number corresponding to a first scheduled subframe, and a scheduling configuration parameter of multi-subframe scheduling; acquiring a second HARQ process number corresponding to a currently-scheduling subframe according to the first HARQ process number corresponding to the first scheduled subframe and the continuous scheduling indication, and performing a data packet transmission of the corresponding second HARQ process number in the currently-scheduling subframe by using the scheduling configuration parameter, each scheduled subframe of the multi-subframe scheduling carrying one data packet, and each scheduled subframe of the multi-subframe scheduling using the scheduling configuration parameter. The embodiments of the present invention may save control signaling overhead of the system and improve spectrum efficiency of the system. | 01-17-2013 |
20130107838 | METHOD AND APPARATUS FOR CONTENTION BASED UPLINK TRANSMISSION | 05-02-2013 |
20140029486 | METHOD, BASE STATION AND USER EQUIPMENT FOR SUBFRAME CONFIGURATION IN TIME DIVISION DUPLEX SYSTEM - Disclosed are a method, a base station and a user equipment for subframe configuration in a time division duplex system. The method comprises: a base station determining a subframe number of a flexible subframe in a radio frame; the base station determining a feature of the flexible subframe corresponding to the subframe number, where the feature indicates that the flexible subframe is an uplink subframe or a downlink subframe; and the base station sending to a user equipment a first signaling via a downlink control channel, where the first signaling includes the feature of the flexible subframe corresponding to the subframe number. | 01-30-2014 |
20150085805 | RADIO COMMUNICATION METHOD, BASE STATION AND USER EQUIPMENT - Embodiments of the present invention disclose a radio communication method, a base station and a user equipment. In a system in which the base station supports a full-duplex radio communication, the base station needs to group user equipments within its service range, configure an identical radio resource pattern for user equipments in a same group and configures different radio resource patterns for user equipments in different groups. In this way, in a process that the base station selects, according to the configured radio resource patterns, multiple user equipments, which are in different communication states on the same radio resource for communication, not all the user equipments will receive the uplink data sent by other user equipment, and only user equipments in different groups may have different communication states on the same radio resource respectively. In this way, an interference between user equipments can be reduced appropriately. | 03-26-2015 |
20150319779 | RADIO COMMUNICATION METHOD, NETWORK SIDE DEVICE AND USER EQUIPMENT - The present disclosure provides a radio communication method, a user equipment, and a network side device, the radio communication method includes: receiving, by a network side device, a random access preamble signal transmitted by a user equipment, where duration of the random access preamble signal is one SC-FDMA symbol or one OFDM symbol, thus air interface overhead of random access can be greatly reduced in a condition that a user equipment can access a cell randomly. The cell may be a microcell or other similar cells. | 11-05-2015 |
Patent application number | Description | Published |
20120155316 | Method and Device for Determining Search Space, and Method and Device for Determining Candidate Control Channel Resources - A method and a device for determining a search space and for determining candidate control channel resources are provided in present invention. The method for determining the search space includes: determining the number of downlink control information bits of each type of control channel currently required to be monitored by a UE; determining a temporary search space corresponding to the each type of control channel according to a mapping relationship currently used by the UE; and determining that an actual search space corresponding to a selected type of control channel is all or a part of CCEs of a union of temporary search spaces corresponding to all or a part of control channels with the same number of the downlink control information bits, when the DCI bit number of one or more other control channels is the same as the DCI bit number of the selected type of control channel. | 06-21-2012 |
20120188978 | METHOD FOR SENDING AND RECEIVING CONTROL INFORMATION, APPARATUS AND COMMUNICATION SYSTEM - The present invention provides a method for sending and receiving control information, an apparatus and a communication system. The method for sending control information includes: setting respective control bits in a downlink control information (DCI) format to generate control information applied by a network side to a terminal, where the control bits include validity indication bits and transmission control bits, indication information indicating whether transmission control exercised by the network side on a transmission block is valid relative to the terminal is written into the validity indication bits, and the validity indication bits are located outside the transmission control bits; and sending the generated control information to the terminal. In the embodiments of the present invention improve efficiency of using an overhead required for transmitting the control information. | 07-26-2012 |
20120327886 | DATA TRANSMISSION METHOD, BASE STATION, AND COMMUNICATION SYSTEM - The present invention discloses a data transmission method, a base station, and a communication system, which are applied in the communication field. The method includes: determining to perform semi-persistent scheduling on data of a user equipment; setting a value of first information for the user equipment, so that the user equipment determines a cyclic shift value of a reference signal sequence of the user equipment according to the value of the first information; and obtaining the reference signal sequence of the user equipment, performing channel estimation according to the reference signal sequence of the user equipment, and performing demodulation on data information of the user equipment according to a channel coefficient obtained by performing the channel estimation. | 12-27-2012 |
20130107844 | Method and Device for Determining Search Space, and Method and Device for Determining Candidate Control Channel Resources | 05-02-2013 |
20140029552 | METHOD, APPARATUS, AND SYSTEM FOR TRANSMITTING DATA - Embodiments of the present invention disclose a method, an apparatus, and a system for transmitting data and relate to the communications field. In order to enable more flexible configuration of flexible subframes and increase downlink throughput, a technical solution provided in the present invention is as follows: configuring an HARQ synchronization attribute of a data packet, where the HARQ synchronization attribute includes synchronous HARQ or asynchronous HARQ; configuring an HARQ process ID of the data packet when the HARQ synchronization attribute is configured to asynchronous HARQ; and sending downlink control information for scheduling the data packet to a user equipment. | 01-30-2014 |
20140086184 | METHOD, APPARATUS AND SYSTEM FOR RECEIVING AND SENDING SCHEDULING INFORMATION - The present invention discloses a method and a terminal for receiving and sending scheduling information, and relates to the field of communications technologies. The method comprises: obtaining, by a terminal, transmission mode information of each carrier of N carriers configured by a network device, where N is a natural number greater than 1; determining a set of candidate downlink control information DCI formats according to the transmission mode information, where the set of candidate DCI formats includes at least a first DCI format and a second DCI format, where a physical downlink control channel PDCCH corresponding to the first DCI format carries scheduling information of at least two carriers of the N carriers, and a PDCCH corresponding to the second DCI format carries scheduling information of one carrier of the N carriers; and receiving and detecting a PDCCH corresponding to each DCI format in the set of candidate DCI formats. | 03-27-2014 |
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 |
20140247758 | METHOD FOR CONFIGURING TRANSMISSION RESOURCE, RELATED DEVICE, AND COMMUNICATION SYSTEM - Embodiments of the present disclosure related to a method for configuring a transmission resource, a related device, and a communication system. The method for configuring a transmission resource includes: notifying, by an access device, a user equipment of an uplink-downlink configuration change period, where the uplink-downlink configuration change period is less than a system message change period; and sending, by the access device, a first message to the user equipment, where the first message carries an uplink-downlink configuration indication corresponding to the uplink-downlink configuration change period, so that the user equipment updates, according to the uplink-downlink configuration indication, an uplink-downlink configuration used by the user equipment. The solutions according to the embodiments of the present disclosure help to improve flexibility for configuring a transmission resource and a utilization rate of a frequency spectrum resource. | 09-04-2014 |
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 |
20140328283 | METHOD AND APPARATUS FOR WIRELESS COMMUNICATIONS - The present invention discloses a method and an apparatus for wireless communications, which relate to the field of communications and are used to solve the problem of a relatively low communication quality in the advanced full duplex communication technology. The method provided in the present invention includes: dividing available radio resources in a communication system into first radio resources and second radio resources, where the first radio resources and the second radio resources occupy different radio resources; simultaneously performing bidirectional transmission of communication information with a user equipment through the first radio resources; and performing unidirectional transmission of communication information with the user equipment through the second radio resources. The present invention is applicable to the field of communications and used for wireless communications. | 11-06-2014 |
20150043517 | METHOD, BASE STATION, AND USER EQUIPMENT FOR FEEDING BACK ACK/NACK INFORMATION FOR CARRIER AGGREGATION - The present invention provides a method, a base station, and a user equipment for feeding back ACK/NACK information for carrier aggregation. The method includes: configuring a common field preset in DCI as at least one type of command field related to ACK/NACK feedback of at least two types of command fields related to ACK/NACK feedback, where the common field can be configured as the command fields related to ACK/NACK feedback; and sending the DCI to a user equipment, so that the user equipment feeds back ACK/NACK information according to the DCI. The present invention may realize backward compatibility of the ACK/NACK information feedback with an LTE system in carrier aggregation. | 02-12-2015 |
20150326354 | METHOD FOR PROCESSING FEEDBACK INFORMATION, BASE STATION, AND USER EQUIPMENT - Embodiments of the present invention provide a method for processing feedback information, a base station, and a user equipment. The method includes: determining, by a base station, a feedback manner of HARQ feedback information, where the feedback manner includes feeding back the HARQ feedback information or not feeding back the HARQ feedback information; and sending, by the base station, first signaling to a user equipment, where the first signaling carries the feedback manner of the HARQ feedback information. The embodiments of the present invention can improve an HARQ mechanism, so as to support new technologies in a small cell more effectively. | 11-12-2015 |
20150334692 | METHOD FOR SENDING AND RECEIVING CONTROL INFORMATION, APPARATUS AND COMMUNICATION SYSTEM - The present invention provides a method for sending and receiving control information, an apparatus and a communication system. The method for sending control information includes: setting respective control bits in a downlink control information (DCI) format to generate control information applied by a network side to a terminal, wherein indication information indicating whether to swap a corresponding relationship between a transmission block and a codeword is not carried in a control bit in the DCI format, if a dedicated demodulation reference signal used to demodulate data is preconfigured by the network side for the terminal and respective codewords correspond to the same number of layers; and the indication information is carried in a control bit in the DCI format, if the dedicated demodulation reference signal used to demodulate data is not preconfigured by the network side for the terminal; and sending the generated control information to the terminal. | 11-19-2015 |
20150358966 | METHOD AND DEVICE FOR GENERATING SUBFRAME, METHOD FOR DETERMINING SUBFRAME AND USER EQUIPMENT - This application provides a method and device for generating a subframe, a method for determining a subframe and a user equipment. The method for generating a subframe includes: determining, by a first device, patterns of at least two special subframes used in a broadcast control channel modification period, where guard period GP durations of the at least two special subframes are different; and generating, by the first device, the at least two special subframes. The method enhances flexibility and improves a system resource utilization rate. | 12-10-2015 |