Patent application number | Description | Published |
20110170510 | METHOD, APPARATUS AND SYSTEM FOR MAPPING ACCESS POINT TO CELL - A method for mapping Access Points (APs) to cells includes: allocating multiple carriers to one AP if the AP serves different User Equipments (UEs) located in a same cell or different cells; and setting up a mapping relation between the AP, the multiple carriers, and the cells for the AP, so as to map the AP to the same cell or different cells through the multiple carriers. In the embodiments of the present invention, the APs in different cells serve the same UE based on the same carrier, which is equivalent to converting inter-cell coordination into intra-cell coordination, thus reducing signaling overheads and simplifying the Coordinated Multi-Point (CoMP) transmitting and CoMP receiving. | 07-14-2011 |
20110182200 | Method, Device and User Equipment for Transmitting Multi-Cell Scheduling Information - A method, device and user equipment (UE) for transmitting multi-cell scheduling information is provided. When at least two cells are serving the UE, the method for transmitting multi-cell scheduling information includes the following steps: determining a main cell of the UE from the at least two cells; transmitting, in the main cell, the scheduling information of the main cell and an auxiliary cell which are serving the UE. | 07-28-2011 |
20110235603 | METHOD, NETWORK DEVICE AND SYSTEM FOR DETERMINING RESOURCE MAPPING IN COORDINATED MULTI-POINT TRANSMISSION - A method, a network device, and a system for determining resource mapping in CoMP transmission are disclosed. The method includes: the cooperative cells that perform CoMP transmission for a UE negotiate a mapping rule used by the cooperative cells when the status of the CoMP transmission of the UE changes, where the mapping rule includes the number of and position of OFDM symbols allocated to a PDCCH domain and/or a data channel domain; and the negotiated mapping rule is notified to the UE. In this embodiment, before the downlink signals are transmitted, the mapping rule used by each cooperative cell for CoMP transmission is negotiated between the cooperative cells, and therefore, the UE can accurately receive the signal sent by multiple cooperative cells and the performance of CoMP transmission in the system is improved. | 09-29-2011 |
20110268077 | DOWNLINK TRANSMISSION METHOD IN A COORDINATED MULTI-POINT TRANSMISSION SYSTEM, NETWORK DEVICE, AND WIRELESS SYSTEM - A downlink transmission method in a Coordinated Multi-Point (COMP) transmission system, a network device, and a wireless system are disclosed. The method includes: determining a downlink physical resource and a downlink mapping rule corresponding to a physical downlink channel and/or a reference signal negotiated by cooperating cells; and mapping the physical downlink channel and/or the reference signal to the downlink physical resource according to the downlink mapping rule, and sending the physical downlink channel and/or the reference signal to a User Equipment (UE). According to the method, effective coverage can be improved and the problem of mutual interference between cells can be prevented. | 11-03-2011 |
20110292906 | METHOD, APPARATUS, AND SYSTEM FOR COORDINATED MULTI-POINT TRANSMISSION - A method, an apparatus, and a system for Coordinated Multi-Point (CoMP) transmission are provided, which can effectively improve the transmission reliability over the control channel and flexibility of the application. The method includes: allocating different resources to a control channel carrying coordination information and a data channel, and performing CoMP transmission over the control channel and the data channel by using the allocated different resources. The technical solutions provided in the present invention are applicable to an Orthogonal Frequency Division Multiplexing (OFDM) system, a Code Division Multiple Access (CDMA) system, a Time Division Multiple Access (TDMA) system, or other mobile communication systems. | 12-01-2011 |
20120002660 | METHOD FOR TRANSMITTING A SIGNAL AND COMMUNICATIONS APPARATUS - A method for transmitting a signal and a communications apparatus are provided. The method includes: obtaining a signal transmission mode, where the signal transmission mode indicates that an uplink signal is transmitted in a multiplexing mode; and transmitting the uplink signal on an uplink band and a downlink band in the multiplexing mode according to the obtained signal transmission mode. The communications apparatus includes: a first obtaining unit, configured to obtain a signal transmission mode, where the signal transmission mode indicates that an uplink signals is transmitted in a multiplexing mode; and a transmitting unit, configured to transmit the uplink signal on an uplink band and a downlink band in the multiplexing mode according to the obtained signal transmission mode. The technical solutions of embodiments of the present invention can reduce signaling overheads of the system and improve spectrum efficiency of the system when obtaining channel state information (CSI). | 01-05-2012 |
20120002662 | METHOD AND APPARATUS FOR COEXISTENCE OF MULTIPLE OPERATING ENTITY SYSTEMS - The present invention discloses a method and an apparatus for coexistence of multiple operating entity systems, where the method includes: setting part or all of bandwidths of an operating entity in uplink timeslots of a downlink carrier frequency interference region to be in an idle state. By using the present invention, the uplink timeslots of the operating entity in the downlink carrier frequency interference region are set to be in an idle state and do not transmit an uplink transmit signal any longer, which prevents a downlink transmit signal of another operating entity from interfering with an uplink transmit signal of the operating entity. | 01-05-2012 |
20120004007 | Method, Apparatus, and Network Device for Power Control - A method for power control includes: if a downlink serving Access Point (AP) of a User Equipment (UE) is different from an uplink serving AP of the UE, sending, by a base station, downlink signaling to the UE so that the UE adjusts uplink transmitting power according to the downlink signaling. In addition, the present invention discloses an apparatus and a network device for power control. | 01-05-2012 |
20120039260 | METHOD, SYSTEM, AND EQUIPMENT FOR INFORMATION PROCESSING - A method, a system, and equipment for information processing are provided. The method includes receiving information sent by a source eNodeB of UE, where the information includes processing status information and data information which are obtained after the source eNodeB processes data transmitted by the UE, or data information in at least two user plane protocol stacks of the source eNodeB, or data information in user plane protocol stacks except PDCP in the source eNodeB; and correspondingly, transmitting data with the UE according to the processing status information and data information, or the data information in the at least two user plane protocol stacks, or the data information in user plane protocol stacks except PDCP. | 02-16-2012 |
20120040622 | METHOD FOR REPORTING CHANNEL STATE INFORMATION, METHOD FOR CHANNEL ESTIMATION, TERMINAL DEVICE, AND BASE STATION - A method for reporting channel state information includes: obtaining channel state information of a described object; and feeding back the obtained channel state information to a base station in a comb manner. A method for channel estimation includes: receiving channel state information that is reported by a terminal in a comb manner; and determining, according to the channel state information that is reported in the comb manner, channel state information corresponding to a described object that does not report channel state information. | 02-16-2012 |
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 |
20120224559 | METHOD AND APPARATUS FOR NOTIFICATION OF EMITTED ENERGY - The present invention discloses a method and an apparatus for notification of emitted energy. The method includes: performing an emitted energy decrease on resource elements in a current cell that have a same time-frequency location as part or all of resource elements where a reference signal of a neighboring cell is located; obtaining an emitted energy parameter of an energy non-decreased resource element (NRE) in the current cell according to a decreased amount of emitted energy of an emitted energy decreased resource element (DRE); and notifying the emitted energy parameter of the NRE to a user equipment (UE). According to embodiments of the present invention, the waste of emitted energy may be avoided, the emitted energy of part of REs is increased, and further, the signal to interference plus noise ratio (SINR) and throughput of service data may be increased. | 09-06-2012 |
20120307868 | METHOD, BASE STATION, AND TERMINAL FOR GENERATING REFERENCE SIGNAL - The present invention relates to a method for generating a reference signal, including: obtaining first control information, where the first control information indicates or includes cyclic shift related information which is used by a terminal belonging to a serving cell to send a reference signal; and sending the first control information to the terminal belonging to the serving cell, so that the terminal belonging to the serving cell generates the reference signal according to the cyclic shift related information which is indicated or included by the first control information and used by the terminal to send the reference signal, where a variation rule of a cyclic shift which the terminal belonging to the serving cell uses to generate the reference signal is the same as that of a cyclic shift which a terminal belonging to a coordinated cell uses to generate the reference signal. | 12-06-2012 |
20140056282 | INTERFERENCE COORDINATION METHOD, BASE STATION, AND COMMUNICATION SYSTEM - Embodiments of the present invention provide an interference coordination method, a base station, and a communication system. The method includes: acquiring first user channel state information on a first time-frequency resource on which interference coordination is to be performed; acquiring second user channel state information on the first time-frequency resource; pairing a first user and a second user according to the first user channel state information and the second user channel state information to obtain transmit power and a precoding matrix that are corresponding to the second user; and transmitting data to the second user on the first time-frequency resource according to the transmit power and the precoding matrix, but not transmitting data to the first user on the first time-frequency resource. | 02-27-2014 |
20140098770 | METHOD, APPARATUS, AND SYSTEM FOR COMP RETRANSMISSION - The present invention provides a method, an apparatus, and a system for CoMP retransmission. The method includes: sending downlink control signaling to a user equipment UE, so that the UE receives, according to the downlink control signaling, an initially transmitted signal sent by a serving transmission point and a cooperative transmission point by joint processing mode; receiving first NAK information corresponding to the initially transmitted signal and returned by the UE, and sending a retransmitted signal corresponding to the initially transmitted signal to the UE according to the first NAK information, where the initially transmitted signal also corresponds to second NAK information sent by the UE to the cooperative transmission point, where the second NAK information is used to instruct the cooperative transmission point to, when the serving transmission point sends the retransmitted signal to the UE, reduce interference to the UE with scheduling. | 04-10-2014 |
20140119325 | Method, Terminal, and Base Station for Feeding Back Channel Information - Embodiments of the present invention disclose a method, terminal, and base station for feeding back channel information. The method includes determining that channel information between access points needs to be fed back and sending feedback content to a base station on a resource configured by the base station, wherein the feedback content includes at least channel adjustment information between a reference access point and a non-reference access point. The resource configured by the base station includes a dedicated resource used to feed back the channel adjustment information and configured by the base station, or all or a part of resources used for periodic feedback and configured by the base station, or all or a part of resources used for aperiodic feedback and configured by the base station. | 05-01-2014 |
20140141832 | UPLINK POWER CONTROL METHOD, BASE STATION AND USER EQUIPMENT - A method includes: sending, by a user equipment (UE), uplink test signaling to transceivers for serving the UE, so that the transceivers calculate receive power of the uplink test signaling by testing the uplink test signaling; receiving, by the UE, the receive power of the uplink test signaling and transmit power of a common reference signal (CRS) from the transceivers; receiving and testing, by the UE, the CRS sent by the transceivers to obtain receive power of the CRS; calculating, by the UE, uplink path losses on paths between the UE and the transceivers according to the receive power of the uplink test signaling, the transmit power of the CRS, and the receive power of the CRS; calculating, by the UE, an aggregate path loss according to the uplink path losses on paths between the UE and the transceivers; and calculating, by the UE, uplink transmit power according to the aggregate path loss. | 05-22-2014 |
20140153527 | METHOD AND DEVICE FOR ALLOCATING PHYSICAL HYBRID ARQ INDICATOR CHANNEL, AND USER EQUIPMENT - Embodiments of the present invention disclose a method and a device for allocating a physical hybrid ARQ indicator channel, and a user equipment. The method for allocating a physical hybrid ARQ indicator channel includes: determining, according to an extended parameter, a cyclic shift value of a demodulation reference signal that is indicated in a Physical Downlink Control Channel PDCCH, and a minimum labeling index value of a physical resource block PRB that is occupied by an uplink data transmission block, a PHICH index number that corresponds to the uplink data transmission block, where the extended parameter includes a cell-specific parameter and a user-equipment-specific parameter; and allocating a PHICH to the uplink data transmission block according to the PHICH index number. | 06-05-2014 |
20140192744 | METHOD AND APPARATUS FOR COORDINATED MULTI-NODE TRANSMISSION - Embodiments of the present invention provide a method and an apparatus for coordinated multi-node transmission The method includes: acquiring, by a user equipment, channel state indicator information of each coordinating node; feeding back, by the user equipment, all information or a part of information in the acquired channel state indicator information to a base station, so that each coordinating node performs, according to the channel state indicator information that has been fed back, scheduling on the user equipment and/or one or more other user equipments served by each coordinating node; and if the user equipment is scheduled, receiving, by the user equipment, scheduling result notification information sent by the base station, and receiving, by the user equipment according to the scheduling result notification information, data transmitted by a base station that corresponds to a coordinating node serving the user equipment. The present invention is applicable to a radio communications system. | 07-10-2014 |
20140211723 | INTERFERENCE MEASUREMENT INDICATION METHOD, INTERFERENCE MEASUREMENT METHOD, RELATED DEVICE, AND COMMUNICATION SYSTEM - Embodiments of the present invention disclose an interference measurement indication method, an interference measurement method, a related device, and a communication system. The interference measurement indication method includes: transmitting, by a base station, at least one piece of first-type channel state information reference signal CSI-RS configuration signaling to a user equipment UE, where the at least one piece of first-type CSI-RS configuration signaling indicates a first resource set used for CSI-RS transmission; and transmitting, by the base station, at least one piece of second-type CSI-RS configuration signaling to the UE, where a second resource set used for CSI-RS transmission, which is indicated by the at least one piece of second-type CSI-RS configuration signaling, is a subset of the first resource set. Technical solutions provided by the embodiments of the present invention help improve the flexibility of interference measurement of the UE. | 07-31-2014 |
20140241193 | METHOD AND SYSTEM FOR MEASURING A CHANNEL QUALITY INDICATOR, USER EQUIPMENT AND BASE STATION - Embodiments of the present invention provide a method and a system for measuring a channel quality indicator, a user equipment and a base station. The method includes: obtaining a channel quality indicator configuration, where the channel quality indicator configuration includes a first combination, and the first combination includes a valid signal processing manner and an interfering signal processing manner; performing valid signal processing and interfering signal processing according to the valid signal processing manner and the interfering signal processing manner in the first combination to obtain a valid signal and an interfering signal; performing channel quality indicator calculation according to the valid signal and the interfering signal to obtain a channel quality indicator; and feeding the channel quality indicator back to a base station. | 08-28-2014 |
20140241198 | METHOD FOR MEASURING AND FEEDING BACK RADIO RESOURCE MANAGEMENT INFORMATION, BASE STATION, AND USER EQUIPMENT - The present application discloses a method for measuring and feeding back radio resource management information, a base station, and a user equipment, relates to the field of communications. The method includes: receiving, by a user equipment UE, a measurement indication from a base station, where the measurement indication includes: information used for indicating, to the UE, at least one channel-state information-reference signal CSI-RS resource used for measuring a received signal strength indicator RSSI; acquiring, by the UE, at least one RSSI according to the measurement indication; acquiring, by the UE, at least one reference signal received quality RSRQ according to the at least one RSSI, where the at least one RSRQ is one-to-one corresponding to the at least one RSSI; and feeding back, by the UE, the at least one RSRQ to the base station. | 08-28-2014 |
20140256374 | Method, Apparatus, and Network Device for Power Control - In a method for power control, a user equipment (UE) receives a path loss measurement indicator and at least one parameter sent by a base station and measures a path loss between the UE and at least one uplink serving access point of the UE according to the path loss measurement indicator. An uplink transmitting power adjustment value is calculated according to the measured path loss and the at least one parameter received from the base station. The UE adjusts uplink transmitting power according to the uplink transmitting power adjustment value. | 09-11-2014 |
20140355548 | DATA TRANSMISSION METHOD, USER EQUIPMENT, AND BASE STATION - Embodiments of the present invention provide a data transmission method, a user equipment, and a base station. The method includes: obtaining a resource element RE configuration, where an RE indicated by the RE configuration is a subset of the RE available for sending a channel state information reference signal CSI-RS and is the RE onto which a data symbol can be mapped; and receiving, according to the RE configuration, the data symbol that is sent by a base station on the RE indicated by the RE configuration. In the embodiments of the present invention, a data symbol can be mapped onto the RE that is used for sending the CSI-RS, so that a UE can receive the data symbol on the RE that is used for sending the CSI-RS, thereby improving the utilization efficiency of the RE. | 12-04-2014 |
20150029913 | SIGNAL TRANSMISSION METHOD AND APPARATUS - A signal transmission method and apparatus are provided. The method includes generating a first signal according to at least one protocol layer of a first protocol stack and a second protocol stack, and sending the first signal to a receive end by using a first uplink carrier; and/or receiving, by using a first downlink carrier, a third signal sent by receive end, and parsing the third signal according to the at least one protocol layer of the first protocol stack and the second protocol stack; where the first protocol stack is used to implement communication between a base station and a user equipment on a base station side, the second protocol stack is used to implement communication between devices, and the second protocol stack is connected to the at least one protocol layer of the first protocol stack. Therefore, signal transmission can be implemented by using uplink and downlink carriers. | 01-29-2015 |
20150055614 | DATA TRANSMISSION METHOD AND APPARATUS - Embodiments of the present invention provide a data transmission method that relates to the field of communications technologies and is invented for effectively improving the spectrum efficiency of data transmission. The data transmission method includes: mapping, to a resource element according to a preset rule, data that needs to be transmitted to a user equipment, where the preset rule includes: mapping data to the resource element corresponding to a non-zero power CSI-RS in a first set of the user equipment, unless the resource element is a specific resource element, where the specific resource element includes a resource element that is among the resource elements corresponding to the non-zero power CSI-RS in the first set and overlaps a resource element corresponding to a zero power CSI-RS; and transmitting the mapped data to the user equipment. The present invention is applicable to a radio communications system such as Long Term Evolution. | 02-26-2015 |