Patent application number | Description | Published |
20130022082 | METHOD AND APPARATUS FOR GENERATING REFERENCE SIGNAL - The disclosure discloses a method for generating a reference signal. The method includes: a user equipment receiving a first signaling carrying reference signal solution information sent by a base station, wherein the reference signal solution information has at least one mapping relation with at least one piece of orthogonal code configuration information and at least one hopping mode, and the at least one mapping relation is stored in the base station and the user equipment; determining a corresponding piece of orthogonal code configuration information and a corresponding hopping mode according to the received reference signal solution information and the stored at least one mapping relation; and generating a reference signal according to the determined piece of orthogonal code configuration information and the determined hopping mode. | 01-24-2013 |
20130039386 | METHOD AND DEVICE FOR TRANSMITTING SOUNDING REFERENCE SIGNAL IN MULTI-ANTENNA SYSTEM - The present invention discloses a method and a device for transmitting sounding reference signal in a multi-antenna system, wherein the method includes acquiring antenna grouping information, and grouping antennas according to the antenna grouping information; and transmitting SRS on the respective antennas, wherein different antenna groups transmit the SRS in different frequency bands at a same moment. With the present invention, the interference with a base station of an adjacent cell in a certain frequency band is enabled to be reduced. | 02-14-2013 |
20130100935 | METHOD AND DEVICE FOR TRANSMITTING A REFERENCE SIGNAL - A method and a device for transmitting a reference signal (RS) are provided. The method includes following steps: based on a mapping relationship between antennas, transmission layers and RS resources, a user equipment (UE) generates an RS on each transmission layer by using an RS resource corresponding to the transmission layer, and transmits the generated RS at a first RS transmission time via an antenna corresponding to the transmission layer; the UE updates the mapping relationship, and generates an RS on each transmission layer by using an RS resource corresponding to the transmission layer based on the updated mapping relationship, and transmits the generated RS at a second RS transmission time via an antenna corresponding to the transmission layer. | 04-25-2013 |
20130136199 | CHANNEL ESTIMATION METHOD, APPARATUS AND SYSTEM - A channel estimation method, comprising when it is determined that in-band SRSs are required to be transmitted, acquiring the number of transmitting antenna ports and the number of layers of the currently transmitted DMRSs; calculating the difference of the number of the transmitting antenna ports and the number of layers of the currently transmitted DMRSs, and using the difference as the number of in-band SRSs that are required to be transmitted; transmitting in-band SRSs to a receiving-end device according to the number of in-band SRSs that are required to be transmitted, to enable the receiving-end device to perform channel estimation according to the currently transmitted DMRSs and the received in-band SRSs. | 05-30-2013 |
20130201941 | METHOD, BASE STATION AND USER EQUIPMENT FOR SENDING AND RECEIVING SOUNDING REFERENCE SIGNAL - A method for sending and receiving a Sounding Reference Signal (SRS) is provided. The method includes: receiving, by a user equipment (UE), a control signaling from a Base Station (BS), wherein a first field in the control signaling indicates the UE transmitting data or sending the SRS, a second field in the control signaling indicates a frequency-hopping mode for the UE transmitting the data or sending the SRS, and a third field in the control signaling indicates frequency-band information for the UE transmitting the data or sending the SRS; and sending, by the UE, the SRS, on a frequency-band according to the frequency-band information indicated by the third field, through the frequency-hopping mode indicated by the second field, when the first field indicates the UE sending the SRS. | 08-08-2013 |
20140016475 | METHOD AND DEVICE FOR RESOLVING COLLISION BETWEEN APERIODIC SRS AND UPLINK CONTROL SIGNALING - The present invention provides a method and device for resolving a collision between an aperiodic sounding reference signal (SRS) and an uplink control signaling. The method includes: acquiring priority criteria of the aperiodic SRS and the uplink control signaling of a UE; receiving, by the UE, a downlink control signaling transmitted by a base station, and acquiring a time when a transmission of the aperiodic SRS is needed; if a transmission of the uplink control signaling through a physical uplink control channel (PUCCH) is needed at the time when the transmission of the aperiodic SRS is needed, transmitting, by the UE, the aperiodic SRS or the uplink control signaling with a higher priority at the time according to the acquired priority criteria; if the transmission of the uplink control signaling through the PUCCH is not needed at the time, transmitting the aperiodic SRS at the time. | 01-16-2014 |
20140133340 | METHOD AND APPARATUS FOR OBTAINING CHANNEL STATE INFORMATION - This invention discloses method and apparatus for obtaining channel state information, and relates to the field of communication techniques, capable of reducing signaling and feedback overheads and lowering UE operation complexity. According to the solutions provided in embodiments of this invention, a RS predetermined transmission time and a RS predetermined frequency are transmitted to a UE by any one cell of at least two cells; each cell or cell group out of the at least two cells, according to the RS predetermined transmission time and the RS predetermined frequency, transmits a RS to the UE on different RS resources; the measurement result transmitted by the UE is received, which comprises CSI between any one cell or cell group out of at least two cells and the UE. The solutions provided in embodiments of this invention are applicable when it is required to obtain CSI between multiple cells and a UE. | 05-15-2014 |
20140241194 | METHOD AND DEVICE FOR MEASURING CHANNEL QUALITY - A method and a device for measuring channel quality are provided. The method includes: receiving first signal characteristic information and second signal characteristic information sent by a network side, where the first signal characteristic information is used to indicate a first signal, and the second signal characteristic information is used to indicate a second signal; receiving a downlink signal sent by each node in multiple nodes, obtaining a downlink channel response and downlink interference of each node respectively according to the first signal and the second signal in the downlink signal sent by each node; obtaining downlink channel quality information of each node according to the downlink channel response and the downlink interference of each node; and reporting the downlink channel quality information of each node to the network side. According to embodiments of the present invention, overheads for the node to send signaling is greatly lowered. | 08-28-2014 |
20140241284 | METHOD FOR SENDING UPLINK REFERENCE SIGNAL, USER EQUIPMENT, AND BASE STATION - The embodiments of the present application provide a method for sending an uplink reference signal, a user equipment, and a base station. The method for sending an uplink reference signal includes: receiving, by a user equipment, first information sent by a base station, where the first information is used for indicating that the user equipment sends a demodulation reference signal on a part of subcarriers allocated by the base station to the user equipment; receiving, by the user equipment, second information sent by the base station, where the second information is information used for indicating the subcarriers that are used for sending the demodulation reference signal; and generating, by the user equipment, the demodulation reference signal according to the first information and the second information, and mapping the demodulation reference signal to the subcarriers indicated by the second information to send the demodulation reference signal to the base station. | 08-28-2014 |
20140293815 | METHOD AND APPARATUS FOR OBTAINING CHANNEL STATE INFORMATION - Embodiments of the present application disclose a method and an apparatus for obtaining channel state information. The method includes: first, receiving, by a user equipment, at least two channel state information CSI measurement reference resource sets sent by a base station; then, measuring, by the user equipment according to each CSI measurement reference resource set of the at least two channel state information CSI measurement reference resource sets, CSI between the user equipment and a transmission point and/or a transmission point combination corresponding to each CSI measurement reference resource set, and obtaining a feedback mechanism satisfying a requirement of the CSI between the user equipment and the transmission point and/or the transmission point combination; and finally, feeding back, by the user equipment, a measurement result to the base station through the same or different feedback mechanisms. | 10-02-2014 |
20140313878 | Retransmission Method and Device - Embodiments of the present invention provide a retransmission method and device. The method includes: controlling, by a network side device, a network side node to send a second space processing mode to a terminal after the network side node receives a negative acknowledgement fed back by the terminal, where the negative acknowledgement is used to indicate that the terminal fails in decoding the downlink data sent by a first node, the second space processing mode is used to indicate a space processing mode applied by the second node to the downlink data, and the second space processing mode is different from a first space processing mode applied by the first node to the downlink data; and controlling, by the network side device, the second node to perform space processing for the downlink data by using the second space processing mode and then retransmit the downlink data to the terminal. | 10-23-2014 |
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 |
20140334431 | RADIO NETWORK CHANNEL ALLOCATION METHOD, DEVICE AND SYSTEM - Embodiments of the present invention provide a radio network channel allocation method, a device, and a system that relate to the communications field, so as to avoid that different UEs in a DAS cell occupy the same physical resources to send control signals, and enhance performance of a network side device in detecting the control signals sent by the UEs. The method includes: grouping user equipments UEs within a distributed antenna system DAS cell in a non-repeated manner; sending different cyclic shift value offset information to UEs in different groups, so that the UEs generate control signals according to the cyclic shift value offset information and send the control signals; and determining cyclic shift values used by the UEs according to the cyclic shift value offset information, and detecting the control signals sent by the UEs according to the cyclic shift values. | 11-13-2014 |
20140348123 | METHOD AND DEVICE FOR TRANSMITTING CONTROL SIGNALING - The present invention provides a method and a device for transmitting control signaling. The method includes: determining a first resource set and a second resource set, where the first resource set and the second resource set are two resource sets in each TTI that do not overlap; and transmitting control signaling in the first resource set and the second resource set respectively, where, in the first resource set, control signaling allocated to each UE can occupy all reserved bandwidth, and in the second resource set, control signaling allocated to each UE can occupy a part of all reserved bandwidth. Embodiments of the present invention can reduce complexity of blind detection of a UE. | 11-27-2014 |
20140348141 | Method for Transmitting Control Signaling, User Equipment, and Base Station - Embodiments of the present invention provide a method for transmitting control signaling. A base station determines a modulation mode adopted for one group of resources among multiple groups of resources. Different modulation modes are adopted for at least two groups of resources among the multiple groups of resources. The base station uses the modulation mode adopted for the one group of resources to modulate control signaling sent on the one group of resources. The base station sends the modulated control signaling to a UE on the one group of resources. | 11-27-2014 |
20150063287 | METHOD AND DEVICE FOR REPORTING REFERENCE SIGNAL RECEIVED POWER - Embodiments of the present invention provide a method and device for reporting reference signal received power. A base station determines at least one first channel-state information reference signal CSI-RS resource used by a terminal to report reference signal received power RSRP, where the first CSI-RS resource includes at least one antenna port group, and the antenna port group includes at least one antenna port; the base station sends first CSI-RS resource configuration information to the terminal, where the first CSI-RS resource configuration information carries the at least one first CSI-RS resource; and the base station receives RSRP that is of each antenna port group included in the first CSI-RS resource and is reported by the terminal. The embodiments of the present invention save overheads of reporting RSRP. | 03-05-2015 |
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 |