Patent application number | Description | Published |
20100238847 | METHOD AND APPARATUS FOR DATA TRANSMISSION IN A TIME DIVISION DUPLEXING SYSTEM - A method for data transmission in a TDD system is disclosed. The method includes: configuring, by a base station, a length respectively for a Downlink Pilot Slot (DwPTS) and an Uplink Pilot Slot (UpPTS) within a special field of a radio half-frame based on a current coverage area taking one Orthogonal Frequency Division Multiplexing (OFDM) symbol as a unit, and issuing a configured result to a user device, wherein a total length of the DwPTS, a Guard Period (GP) slot and the UpPTS is kept to be 1 ms; constructing, by the base station, radio half-frames for data transmission according to the configured result. An apparatus for data transmission in the TDD system is also disclosed. According to the present invention, coverage area of different levels with smaller granularity is supported, radio resources are saved and transmission efficiency is increased. | 09-23-2010 |
20100246456 | METHOD AND AN APPARATUS FOR DETERMINING THE RADIO FRAME STRUCTURE OF TIME DIVISION DUPLEX SYSTEM - A method for determining the radio frame structure of a Time Division Duplex system is disclosed, which comprises: configuring, by the network side, the radio frame structure used for service transmission as containing two half-frames each of 5 ms, wherein each half-frame consists of eight service time slots of 0.5 ms and one special time slot field of 1 ms, two consecutive service time slots form a subframe of which the length is 1 ms, and the special time slot field contains a DwPTS, a GP and an UpPTS; determining the lengths of the DwPTS, the GP and the UpPTS in the special time slot field according to the requirements of the coverage range, and determining the radio frame structure used for service transmission. By reconfiguring the radio frame structure, the invention can flexibly support different coverage ranges, enhance the flexibility of satisfying different service requirements, and implement the coexistence of two types of TDD systems. | 09-30-2010 |
20100278080 | TRANSMISSION METHOD AND DEVICE IN LONG TERM EVOLUTION TIME DIVISION DUPLEX SYSTEM - A transmission method in a Long Term Evolution time division duplex system can carry out reconfiguration for half-frame structures. According to the coverage range requirements of the system, it performs flexible configuration of the number of special time slot areas and the downlink pilot time slots, guard intervals or uplink pilot time slots included therein, and so can support different coverage ranges. A base station and user terminal using above method in the Long Term Evolution time division duplex system. | 11-04-2010 |
20100284289 | METHOD, SYSTEM AND BASE STATION FOR DETERMINING DATA TRANSMISSION OFFSETS - A method for determining a data transmission offset includes: synchronizing a first time division duplex TDD system with a second TDD system (a | 11-11-2010 |
20110044181 | METHOD, SYSTEM AND APPARATUS FOR PROCESSING UPLINK SIGNALS - The present invention discloses a method for processing uplink signal. In this method, when a random access channel of a cell where a user equipment (UE) locates is within an uplink pilot timeslot, the UE determining whether there is a conflict between the random access channel and time-frequency position of an uplink channel quality sounding pilot of the UE; and if there is a conflict, the uplink channel quality sounding pilot will not be transmitted by the UE within the uplink pilot timeslot. The present invention also discloses a system and apparatus for processing uplink signal. By applying the method, system and apparatus of the present invention, the interference to detection performance of the random access channel caused by the uplink channel quality sounding pilot will be avoided, thereby increasing the detection performance of the random access channel. | 02-24-2011 |
20110051633 | METHOD AND APPARATUS FOR IMPLEMENTING INDICATION OF UPLINK TRANSMISSION TIMING ADVANCE - The present invention provides a method for implementing uplink transmission TA. The method includes: receiving, by a UE, a TA command, adding a TA value corresponding to the TA command and a pre-configured TA adjusting offset to obtain a practical uplink transmission timing advance TA′; and transmitting, by the UE, uplink data according to the TA′. The present invention also provides another method for implementing uplink transmission TA. Compared with the prior art, in the methods provided by the present invention, a TA adjustment indicating table is respectively configured in the eNodeB and the UE, and some items of the TA adjustment indicating table are commonly-used by a TDD system and an FDD system. The present invention also provides apparatuses for implementing uplink transmission TA. The present invention provides detailed solutions for implementing uplink transmission TA in the TDD system and achieves coherence between the designs of the TDD system and the FDD system to the largest extent. | 03-03-2011 |
20110058505 | Method And Device For Configuring Uplink Sounding Reference Signal - The present invention provides a method for configuring a Sounding Reference Signal (SRS). The method includes: determining, by a base station, an SRS periodicity available for a cell, and determining at least one SRS configuration position available in a sub-frame for the cell based on the SRS periodicity determined; and jointly coding, by the base station, the SRS periodicity and the at least one SRS configuration position, and transmitting a result of the joint coding to all User Equipments (UE) in the cell through broadcast signaling. The present invention also provides an apparatus for configuring an SRS. The present invention implements configuration of SRS transmission and can avoid conflict between SRS and uplink control information. | 03-10-2011 |
20110105167 | Method for Transmitting and Receiving Uplink Sounding Reference Signal, Base Station and Mobile Terminal - The field of wireless communications is related, especially the technique of transmitting uplink sounding reference signal (SRS) by a mobile terminal with multiple transmission antennas is related. A method for receiving uplink sounding reference signal includes the following steps: receiving the SRS signals, which are respectively transmitted from respective radio frequency transmission modules of the mobile terminal according to the respectively allocated Transmission Comb (TC) values and Cyclic Shift (CS) values when the transmission period arrives, wherein TC values and/or CS values allocated for any two radio frequency transmission modules are different; determining the radio frequency transmission module corresponding to every received SRS signal according to the TC values and CS values respectively allocated for respective radio frequency transmission modules. A device for receiving uplink sounding reference signal, a method and a device for transmitting uplink sounding reference signal are also provided. Because different TC values and/or different CS values are allocated for respective radio frequency transmission modules, (multiple) radio frequency transmission modules can transmit SRS signals through (multiple) transmission antennas during the same transmission period by way of Frequency Division Multiplex (FDM) or Code Division Multiplex (CDM). | 05-05-2011 |
20110261714 | METHOD AND DEVICE FOR ENABLING MULTI-CARRIERS AGGREGATION TRANSMISSION - The present invention discloses a transmission method with multi-carrier aggregation, which includes: performing uplink and downlink configurations for each of the component carriers aggregated in a cell and ensuring coexistence of at least one identical uplink sub-frame and at least one identical downlink sub-frame between at least two of the component carriers and compliance of the configuration of at least one of the component carriers with an uplink and downlink configuration of R8; and transmitting the uplink and downlink configuration of any one of the component carriers and those of the other component carriers aggregated with the any one component carrier to an LTE-A UE accessing the corresponding component carrier. The invention further provides a transmission device with multi-carrier aggregation. With the invention, uplink and downlink configurations in an LTE-A system can be performed to accommodate a demand of a TDD system. | 10-27-2011 |
20110267994 | Method, System, and Apparatus for Determining Uplink Transmission Power in Time Division Duplex System - A method for determining uplink transmission power in time division duplex system is disclosed: a base station determines the current distribution manner of uplink and downlink sub-frames, acquires the frame correspondence information that corresponds to the distribution manner of said uplink and downlink sub-frames, selects, based on said frame correspondence information, downlink sub-frames to transmit to a terminal the power control (TPC) commands that correspond to the uplink sub-frames. Before using the uplink sub-frames to transmit data, the terminal determines the current distribution manner of uplink and downlink sub-frames, acquires the frame correspondence information that corresponds to the distribution manner of said uplink and downlink sub-frames, determines, based on the frame correspondence information, the downlink sub-frames that are used for transmitting the TPC commands; acquires the TPC commands received by the downlink sub-frames, and determines the data transmission power of the uplink sub-frames based on said TPC commands. The present invention also discloses a time division duplex data transmission system and an apparatus therefor. With the present invention, a time division duplex system can transmit and receive TPC commands based on the frame correspondence information, thereby enabling correct and effective uplink power control performance. | 11-03-2011 |
20120008574 | METHOD, SYSTEM AND DEVICE FOR ADAPTIVE MODULATION AND CODING - An adaptive modulation and coding method is provided by the present invention, comprising: selecting punctured Physical Resource Blocks (PRBs) to transmit the downlink data for the User Equipment (UE); determining the Transport Block Size (TBS) and the number of punctured PRB pairs for transmission to the UE based on the carried service; scheduling the downlink data for the UE based on the determined TBS, and transmitting the number of the used punctured PRB pairs and a Modulation and Coding Scheme (MCS) sequence number to the UE; and the UE converting the number of the punctured PRB pairs to the number of normal PRB pairs, determining the modulation scheme and the TBS sequence number based on the MCS sequence number, and determining the TBS of the downlink data based on the number of the normal PRB pairs and the TBS sequence number. The specific condition when downlink data are transmitted with punctured PRBs may be performed in the present invention on the basis of utilizing the existing resources and adaptive processing of the general subframes by performing conversion between the number of punctured PRBs and the number of normal PRBs in scheduling resource for the UE with the NodeB, which may be implemented simply and efficiently. | 01-12-2012 |
20120014358 | METHOD, SYSTEM AND DEVICE FOR DETERMINING BANDWIDTH OF UPLINK SOUNDING REFERENCE SIGNAL - The present invention discloses a method, system and device for determining a bandwidth of an uplink sounding reference signal SRS. The method for determining the bandwidth of the uplink SRS comprises the following steps: determining whether SRS is transmitted with the uplink pilot time slot if the SRS is transmitted with the largest bandwidth level; transmitting SRS with the non-extensive SRS bandwidth if SRS is determined to be transmitted with the uplink pilot time slot and the UE reaches the power limit. In the present invention, the signal-to-noise ratio detected on the bandwidth with which SRS transmitted can be maintained, and the accurate detection of the channel information is thereby realized. | 01-19-2012 |
20120044852 | Resource Scheduling Method and System, Base Station and Relay Node - The present invention discloses a resource scheduling method and system, a BS and a RN, which include that: the BS allocates an uplink subframe for performing uplink transmission of a backhaul link and a downlink subframe for performing downlink transmission of the backhaul link, and informs the RN of the allocation information of the uplink subframe and the downlink subframe of the backhaul link, or the BS only informs the RN of the allocation information of the uplink subframe or the downlink subframe of the backhaul link; the RN may determine, according to the received allocation information and a predefined timing relationship, an uplink subframe and a downlink subframe of the backhaul link of which the BS does not inform. By the solution of the present invention, an MBSFN subframe can be indicated to the RN, and uplink transmission conflict can be avoided. | 02-23-2012 |
20120069778 | METHOD, DEVICE AND SYSTEM FOR BACKHAUL LINK COMMUNICATION IN TDD SYSTEM - The present invention provides a method, device and system for backhaul link communication in a TDD system. Wherein, the method includes: a base station allocating an uplink subframe for uplink transmitting of the backhaul link and a downlink subframe for downlink transmitting of the backhaul link, and notifying subframe allocating information to a relay node; and the base station communicating with the relay node by the uplink subframe and the to downlink subframe of the backhaul link. The solution allocates the uplink subframe and the downlink subframe of the backhaul link according to certain rules, performs related HARQ operation based on the allocated uplink subframe and downlink subframe, and ensures the availability and reliability of backhaul link communication. | 03-22-2012 |
20120120906 | Configuration Method, System And Device For Uplink Channel - The embodiments of the present invention disclose a configuration method, system and device for an uplink channel. The method includes: The terminal achieve the information the network side device sending of carrying uplink transmission mode, and use the transmission mode transfer uplink signal; the terminal obtains the channel quality information according to the uplink transmission mode; the channel quality information the terminal obtained report to the network side device, as well as enables the network side device configures the uplink channel according to the channel quality information. The present invention performs the configuration of uplink channels in multicarrier transmission. | 05-17-2012 |
20120127913 | METHOD, SYSTEM AND DEVICE FOR CHANNEL CONTENT ALTERNATION NOTIFICATION AND CHANNEL RE-DETECTING - A method for channel content alternation notification and channel re-detecting is provided. The method is: a base station determines that the configured carried content of multimedia broadcast multicast service (MBMS) point to multipoint control channel (MCCH) is altered, and transmits the notification about alternation of the carried content of MCCH to a terminal through a physical downlink control channel (PDCCH); the terminal re-detects MCCH according to the notification after the terminal received the notification. A system and a device for channel re-detecting are provided. The terminal can recognize whether the carried content of MCCH is altered, and re-detect MCCH in case of altered without re-detecting MCCH periodically, therefore it is beneficial to save the resources of terminal. | 05-24-2012 |
20120127932 | METHOD AND DEVICE FOR TRANSMITTING SOUNDING REFERENCE SIGNAL - A method and device for transmitting sounding reference signal (SRS). The method includes that: in at least two cells which need a user equipment (UE) to perform uplink channel sounding, the SRS resources for performing sounding to each cell are distributed to the UE; the UE is indicated to transmit the SRS on the distributed SRS resources. The method of the present invention can enable the UE to detect the channels of a plurality of cells and to be used in multipoint cooperative transmission, avoid the UE feeding back the channel information of a plurality of cells, and reduce the feedback overhead and improve the system performance. | 05-24-2012 |
20120134332 | TRANSMISSION METHOD AND DEVICE FOR UPLINK CONTROL CHANNEL - A transmission method for uplink control channel is provided, and the method comprises the following steps: a base station configures a transmission mode for the uplink control channel of a user equipment (UE) via high signaling; according to the transmission mode, the base station receives the uplink control channel sent by the UE via a transmit diversity or a single antenna port. A device for implementing the transmission for uplink control channel is also provided. With the present solution, according to the operation state of the system the base station flexibly configures the UE having multiple transmitting antennas to transfer uplink control channel by using different modes, so as to improve the reliability and efficiency of the system and enhance the performance of the system effectively. | 05-31-2012 |
20120140746 | METHOD AND DEVICE FOR TRANSMITTING DOWNLINK INFORMATION IN MULTI-CARRIER AGGREGATION SYSTEM - A method and a device for transmitting downlink information in a multi-carrier aggregation system are provided. The Method includes: a base station side sends a downlink subframe to a terminal side, wherein, the physical downlink control channel (PDCCH) in the downlink subframe is used for bearing the downlink control indicating information and the carrier scheduling indicating information corresponding to each downlink control indicating information. It solves the problem that the terminal side can not clearly identify the downlink control information (DCI) of different carriers, which is caused by that the length of DCI may be same due to the difference of the bandwidths of carriers in the carrier aggregation system. | 06-07-2012 |
20120147775 | METHOD, SYSTEM AND APPARATUS FOR TRANSMITTING CHANNEL QUALITY INDICATOR INFORMATION OF MULTIPLE USER TERMINALS - Provide are a method, a system and an apparatus for transmitting channel quality indicator information of multiple user terminals. The method includes: at least two user terminals transmit their own channel quality indicator information using the same time and frequency resources, wherein the time and frequency resources include at least one frequency-domain unit in frequency domain and at least two sets of data time-domain units in time domain, each set of data time-domain units including at least two data time-domain units; and the channel quality indicator information of each user terminal is transmitted on at least one set of data time-domain units by means of time-domain Code Division Multiple Address. Therefore, it is possible to adjust the transmitted bits according to size of the channel quality indicator information. | 06-14-2012 |
20120182908 | METHOD AND USER EQUIPMENT FOR SENDING UPLINK RESOURCE SCHEDULING REQUEST - A method for a user equipment sending an uplink resource scheduling request in a long term evolution mobile communication system and the user equipment thereof are provided. The present invention relates to a technique for the user equipment sending the uplink resource scheduling request in a long term evolution system, for reducing the user data transmission delay. The embodiments of the present invention set the minimum alternative option of the scheduling request transmission cycle configuration parameter as 2 ms or 1 ms, that is to say, add 2 ms or 1 ms, or 2 ms and 1 ms to the alternative option of the scheduling request transmission cycle configuration parameter, therefore, improving the flexibility of the whole system in the scheduling request transmission cycle configuration. When the data delay is required to be less, the user data transmission delay can be reduced, by using the 2 ms or 1 ms scheduling request transmission cycle configuration, to the delay requirement of 10 ms as close as possible. | 07-19-2012 |
20120182931 | Transmission Method, Detection Method and Equipment For Control Channels Of A Relay System - A configuration method, detection method and equipment for control channels of a relay system are provided in the present invention. The configuration method comprises: the network side transmits a Relay-Physical Downlink Control Channel (R-PDCCH) of a control channel to its service relay equipment, the related control information of said relay equipment is included in said R-PDCCH, said R-PDCCH is a dedicated R-PDCCH of said relay equipment. In the present invention, the dedicated control channel of the relay system is configured according to the number of Orthogonal Frequency Division Multiplexing (OFDM) symbols occupied by a R-PDCCH, and the mapping from a R-PDDCH/Relay-Physical Downlink Shared Channel (R-PDSCH) to a Resource Element (RE), and the demand that one relay node dedicates a R-PDCCH is satisfied. | 07-19-2012 |
20120188937 | METHOD, SYSTEM AND DEVICE FOR TRANSMITTING DEMODULATION REFERENCE SIGNAL AND DEMODULATING CHANNEL OVER BACKHAUL LINK - The present invention discloses a method on a Long Term Evolution-Advanced (LTE-A) system backhaul link for demodulation pilot transmission, wherein the method includes that: among the resource areas occupied by a Relay-Physical Downlink Shared Channel (R-PDSCH) on the backhaul link, a base station selects the resource units which are preconfigured for sending the demodulation pilot signal of the R-PDSCH; the base station sends the demodulation pilot signal to a Relay Node (RN) belonging to the base station by using the selected resource units. The present invention also discloses a channel demodulation method on the LTE-A system backhaul link, an LTE-A communication system and device. The demodulation performance of the R-PDSCH in the LTE-A system can be ensured with the present invention. | 07-26-2012 |
20120190395 | METHOD AND DEVICE FOR CONFIGURING DOWNLINK SCHEDULING INFORMATION - A method and apparatus for configuring downlink scheduling information are used to control times of blind detection in multi-carrier system. The method includes that: a downlink carrier set and an uplink carrier set are allocated to a terminal which sends a service request; according to the bandwidth information of each carrier of the system, obtained terminal type information, currently received channel quality information fed back from the terminal, transmission modes which are allocated to each member carrier in the downlink carrier set and the uplink carrier set and determined carrier scheduling modes of the terminal, at least one member carrier in the downlink carrier set is selected as a member carrier of Physical Downlink Control Channel (PDCCH) activation carrier set; the times of PDCCH blind detection can not exceed the each sub frame maximum blind detection times supported by the terminal in the terminal type information, wherein the PDCCH blind detection is used for uplink and downlink scheduling, and the PDCCH activation carrier set is used to be provided for the terminal to perform the PDCCH blind detection. | 07-26-2012 |
20120207059 | RESOURCE CONFIGURATION METHOD, EQUIPMENT AND SYSTEM FOR UPLINK CONTROL CHANNEL - The present invention disclosed a resource configuration method for uplink control channel, The method comprises: network side equipment determines downlink carrier that exists cell specific linkage in uplink carrier set and downlink carrier set of User Equipment UE; said network side equipment configures uplink control channel resource for downlink carrier which doesn't exist cell specific linkage according to said determinate result. The method of the present invention is simple and easy to implement, it could use the method in FDD and TDD system to advance system capability of Long Term Evolution multi-carrier update system, and advancing compatibility with the present LTE system primely. | 08-16-2012 |
20120218935 | METHOD, SYSTEM AND DEVICE FOR TRANSMITTING UPLINK FEEDBACK INFORMATION - There are a method, system and device for transmitting uplink feedback information by allocating a PUCCH resource to an RN device in LTE-A system so that the RN device can transmit uplink feedback information over the allocated PUCCH resource. The method according to an embodiment of the present invention includes: a base station selecting from a PUCCH resources pool at least one dedicated PUCCH resources for each RN device served by the base station and transmitting a resources index number corresponding to the PUCCH resource to the each RN device respectively in higher layer signaling, the resource index number is used for indicating the RN device to transmit the uplink feedback information over the PUCCH resources corresponding to the resources index number. In the embodiment of the present invention, a PUCCH resource can be allocated to the RN device in LTE-A system so that the RN device can transmit the uplink feedback information over the allocated PUCCH resources. | 08-30-2012 |
20120243448 | METHOD,SYSTEM AND DEVICE FOR SENDING UPLINK FEEDBACK INFORMATION - A method and device for acquiring user equipment duplex mode information are disclosed by the present invention, wherein, the method includes: the user equipment establishes a radio resource control connection with a base station, and reports the user equipment duplex mode information when establishing the radio resource control connection. With the technical scheme provided in the embodiments of the present invention, the network side acquires the duplex mode of the user equipment. | 09-27-2012 |
20120294250 | METHOD AND DEVICE FOR ALLOCATING DOWNLINK RESOURCE AND RECEIVING DOWNLINK DATA - A method and apparatus for allocating downlink resources and implementing downlink data reception in a broadband evolution system are disclosed in the present invention, so as to implement the allocation of resources in case of carrier resource expansion and implement the reception of downlink data in case of carrier resource expansion. A method for receiving downlink data includes that: emission bandwidth resources are divided into multiple frequency-domain Resource Blocks (RBs), and every frequency-domain Resource Block (RB) corresponds to an RB serial number, wherein the frequency-domain RBs corresponding to Release-8 (Rel-8) compatible frequency-domain resources are numbered in a numbering mode of a Long Term Evolution (LTE) system, and the frequency-domain RBs corresponding to incompatible frequency-domain resources are orderly numbered based on the largest serial number corresponding to the Rel-8 compatible frequency-domain resources; when receiving a downlink control signaling including RB serial numbers transferred from a network side, a broadband evolution terminal obtains frequency-domain RBs corresponding to the RB serial numbers, and can receive downlink data from the obtained frequency-domain RBs. | 11-22-2012 |
20120307777 | METHOD, SYSTEM AND DEVICE FOR SCHEDULING NON-CONTENTION BASED RANDOM ACCESS AND TRANSMITTING PREAMBLE - A method, system and device for scheduling a non-contention based random access and transmitting a preamble are provided in the present invention. The present invention belongs to wireless telecommunication field and is used to solve a problem that the prior art is not able to support cross carrier non-competing random access scheduled by a Physical Downlink Control Channel (PDCCH). In the present invention, a Base Station (BS) adds Uplink Component Carrier (ul cc) identification information in a Downlink Control Information (DCI) signaling which is used to schedule a User Equipment (UE) to implement non-competing random access; and sends the UE the DCI signaling through the PDCCH. After detecting the DCI signaling, the UE sends the network side a preamble sequence on a UL CC corresponding to the UL CC identification. With the present invention, support is provided to realize cross carrier non-competing random access scheduled by PDCCH. | 12-06-2012 |
20120327842 | METHOD, SYSTEM AND DEVICE FOR TRANSMITTING AND DETECTING CONTROL SIGNALING IN BACKHAUL LINK - A method, system and device for transmitting and detecting control signaling in a backhaul link are disclosed in the present application, and the application relating to the wireless communication field is used for saving time-frequency resources occupied by a base station for transmitting the control signaling on a Relay Physical Downlink Control Channel (R-PDCCH) of the backhaul link and reducing the complexity of the R-PDCCH detection by a relay node. In the present application, the base station, according to the preset correspondence between the control signaling and the R-PDCCH resource sub-regions, determines the R-PDCCH resource sub-region corresponding to the control signaling to be transmitted among a plurality of resource sub-regions included in the resource region occupied by the R-PDCCH; the control signaling to be transmitted is transmitted to the relay node by using the time-frequency resources in the determined R-PDCCH resource sub-region; the relay node acquires the location information of the R-PDCCH resource sub-region and detects the control signaling to be transmitted in the R-PDCCH resource sub-region according to the location information. With the present application, the time-frequency resources occupied by the base station for transmitting the control signaling on the R-PDCCH are saved and the complexity of the R-PDCCH detection by the relay node is reduced. | 12-27-2012 |
20130003647 | METHOD AND DEVICE FOR TRANSMITTING PILOT CONFIGURATION INFORMATION - A method and device for transmitting pilot configuration information are provided for transmitting the pilot configuration information to relay nodes, and enabling the relay nodes to receive pilots according to the pilot configuration information and implement channel demodulation. Said method includes the following steps: a Node B generates a high-level signaling which includes the pilot configuration information configured for the Relay-Physical Downlink Control Channel (R-PDCCH); the Node B transmits said high-level signaling to a relay device. | 01-03-2013 |
20130039304 | METHOD FOR SENDING SOUNDING REFERENCE SIGNALS (SRS), TRIGGER METHOD AND DEVICE THEREOF - The present invention discloses a method for triggering the sending of Sounding Reference Signals (SRS), a method for sending the SRS and an device thereof. The method for triggering the sending of SRS includes that a base station sends a downlink transmission scheduling signal to the user equipment (UE), wherein the signal carries the indication information for instructing the UE to send the SRS. By adopting the present invention, one or a plurality of UEs can be triggered by one piece of physical downlink control channel (PDCCH) signal to send the SRS. | 02-14-2013 |
20130070720 | METHOD, BASE STATION AND SYSTEM FOR INDICATING CSI FEEDBACK - The present invention relates to the technical field of wireless communications. Provided arc an indication method, a base station, and a system for channel state information (CSI) feedback. The indication method comprises: the base station allocating to a user equipment (UE) a CSI feedback method (S | 03-21-2013 |
20130077541 | METHOD AND DEVICE FOR DETERMINING UPLINK CONTROL CHANNEL RESOURCES - A method and a device for determining uplink control channel resources are disclosed by the embodiments of the present invention. With the technical solutions of the embodiments of the present invention, the uplink control resources, such as the ACK/NACK and the like, can be configured semi-statically. The method is applicable for both the FDD system and the TDD system. The overhead of the uplink feedback channel in the Long Term Evolution (LTE) carrier aggregation system is reduced. Therefore the system performance of the LTE multi-carrier advanced system is improved, and the system is compatible with the LTE Release 8 system well. | 03-28-2013 |
20130100896 | METHOD AND DEVICE FOR TRANSMITTING APERIODIC SOUNDING REFERENCE SIGNAL (SRS) - Embodiments of the present invention disclose a transmission method and device for aperiodic Sounding Reference Signal (SRS). By applying the technical solution of the embodiments in the present invention, a Base Station (BS) performing semi-static configuration of the aperiodic SRS on a mobile terminal through higher layer signaling to decrease signaling overhead. On the one hand, different sub-frames can be set with different or the same Cycle Shift (CS) and resource positions to increase the flexibility of system setting; On the other hand, aperiodic SRS may be transmitted in a plurality of sub-frames to reduce system delay and increase detection bandwidth. Moreover, the relatively flexible timing mode can be set in the terminal without bringing too many limits on the scheduling. | 04-25-2013 |
20130128826 | METHOD AND APPARATUS FOR UPLINK CONTROL CHANNEL RESOURCE CONFIGURATION - Disclosed are a method and an apparatus for uplink control channel resource configuration. A base station allocates an uplink control channel resource set, and the resource set includes channel resource elements which can be used by acknowledgement/negative acknowledgement ACK/NACK feedback. The base station sends a configuration signaling to a user terminal according to the channel resource elements circumstances included in the uplink control channel resource set and/or that if the uplink control channel resources to be fed back corresponding to a downlink subframe control district Control Channel Element CCE can satisfy all of the antenna ports to process transmission diversity. The user terminal configured with two antenna ports uses the corresponding channel resources to process ACK/NACK feedback according to the configuration signaling. Applying the method, apparatus and system provided by the present invention can solve the problems that the limited feedback channel resources affect the flexibility of Physical Downlink Shared Channel PDCCH scheduling and the complexity of blind tests the user terminal processes for PDCCH. | 05-23-2013 |
20130142106 | Method, Device and System for Relay Timing Adjustment - An embodiment of the present application provides a relay timing adjustment method, system and device, relating to the technical field of wireless communications, for use in solving the problem of how to synchronize base station downlink transmission and relay device downlink transmission in an Advanced Long Term Evolution (LTE-A) system. In this application, the base station sends an access downlink transmission timing adjustment command to the relay device. When the relay device receives said access downlink transmission timing adjustment command, the downlink transmission timing is adjusted in said relay device according to said received access downlink transmission timing adjustment command. This invention is thus able to synchronize relay device access downlink transmission timing with base station downlink transmission timing. | 06-06-2013 |
20130176919 | TRANSMISSION METHOD AND DEVICE IN LONG TERM EVOLUTION TIME DIVISION DUPLEX SYSTEM - A transmission method in a Long Term Evolution time division duplex system can carry out reconfiguration for half-frame structures. According to the coverage range requirements of the system, it performs flexible configuration of the number of special time slot areas and the downlink pilot time slots, guard intervals or uplink pilot time slots included therein, and so can support different coverage ranges. A base station and user terminal using above method in the Long Term Evolution time division duplex system. | 07-11-2013 |
20130176957 | CONFIGURATION METHOD AND DEVICE FOR TRANSMITTING UPLINK CONTROL INFORMATION (UCI) - The present invention discloses a method and equipment for UCI transmission. Upon application of the technical solution provided in embodiments of the present invention, UE transmitting UCI through a selected PUSCH is realized when multiple PUSCH transmissions are available for a UE in one uplink subframe in LTE-A carrier aggregation system, which solves the problem on how to transmit UCI only through one PUSCH when multiple PUSCH transmissions are available. | 07-11-2013 |
20130182618 | METHOD AND DEVICE FOR TRANSMITTING APERIODIC SRS IN TDD SYSTEM - Disclosed are a method and a device for transmitting an aperiodic SRS in a TDD system. In the technical solution of the present invention,a symbol is defined for the transmission of the aperiodic SRS in a special subframe in the TDD system. This avoids a scenario in which the transmission position of the aperiodic SRS is undefined when a plurality of symbols that can be used to transmit the aperiodic SRS are available in an uplink pilot time slot (UpPTS). The problem of transmitting aperiodic SRS in a TDD system special subframe is thus solved. The modification to corresponding instruction messages is not extensive, and there is no overuse of system resources. | 07-18-2013 |
20130190028 | Method, Device and System for Implementing Frequency Point Switch Based on CR - The present application relates to of the communication field and discloses a method, device and system for implementing frequency point shift based on CR. The method comprises: determining, by a cognitive base station, a candidate working frequency point for UE deployed in a cognitive frequency band; then sending to the UE broadcast information which at least carries the candidate working frequency point and instructing the UE to shift from the working frequency point currently used thereby to the candidate working frequency point by way of a frequency point shift command. In this way, the UE deployed in the cognitive frequency band can achieve frequency point shift quickly and accurately according to the instruction from the cognitive base station when an authorized user accesses the working frequency point currently used by the UE, effectively avoiding interference to the authorized user and thereby ensuring the service performance and service continuity of the system. The present application also discloses a corresponding device and system. | 07-25-2013 |
20130208611 | METHOD AND APPARATUS FOR RECEIVING SIGNALS - The present invention discloses a method and apparatus for receiving signals, which comprises the followings: receive signals on at least one receiving branch, which comprises at least two reception units, including one data reception unit and one pilot reception unit at least. Said signal refers to a codeword in a transmission codebook; calculate metric value of each codeword in said transmission codebook according to said received signal; obtain the codeword with maximal metric value among all said codewords and the metric value corresponding to this codeword; if this value exceeds threshold value, Determining the codeword corresponding to said maximal metric value; if this value is less than the threshold value, Determining discontinuously-sent DTX. In the present invention, perform joint demodulation of data symbol and pilot symbol to make the demodulation results more reliable; meanwhile; judge whether it is discontinuous transmission based on joint demodulation of data symbol and pilot symbol. | 08-15-2013 |
20130208669 | METHOD AND DEVICE FOR RESOURCE ALLOCATION OF BACKHAUL LINK CONTROL CHANNEL INFORMATION - The present invention discloses a method and device for resource allocation of backhaul link control channel information. Upon application of a technical solution proposed by embodiments of this invention and based on the condition of introducing DMRS and CSI-RS, make remaining REs which are not occupied by CSI-RS and/or DM-RS in OFDM symbol that contains REs for transmitting CSI-RS and/or DM-RS constitute REG to transmit backhaul link control channel information or abandon them; thus, on the basis of maximizing the reservation of existing LTE system specification, specifying resource allocation scheme of backhaul link control channel information in corresponding physical resource block, giving consideration to both simple specification design and full utilization of resources, and realizing flexible design and allocation in light of the demand of a real system. | 08-15-2013 |
20130208675 | Method and Device for Reporting and Obtaining Power Headroom - Disclosed are a method and device for reporting and obtaining power headroom. The method comprises: user equipment (UE) configuring a maximum transmit power (Pcmax); the UE using the Pcmax to calculate power headroom (PH); and the UE reporting the Pcmax and the PH to a base station. In embodiments of the present invention, the UE uses configured Pcmax to calculate power headroom (PH) and reports the Pcmax and the PH to the base station, so that the base station obtains the Pcmax and the PH at the same time, and thus the base station can use the PH accurately according to the Pcmax. | 08-15-2013 |
20130272157 | POWER CONTROL METHOD AND DEVICE FOR PHYSICAL UPLINK CONTROL CHANNEL - This application discloses a power control method and device of a Physical Uplink Control Channel (PUCCH) in a long term evolution (LTE) advanced system, relates to the technical field of wireless communications and is intended to reasonably determine the signal transmit power of a user equipment (UE) on the PUCCH to thereby improve the power utilization ratio of the user equipment. In this application, upon determining to bundle generated positive acknowledge (ACK)/negative acknowledge (NACK) information, the UE bundles the ACK/NACK information in a predefined bundling scheme, determines the power offset value corresponding to the number of bits carried on the PUCCH according to the bundling scheme and further determines the transmit power of the PUCCH. With the invention, the transmit power of the UE can be determined more reasonably. | 10-17-2013 |
20130279400 | METHOD AND DEVICE FOR R-PDCCH TRANSMISSION IN SCENARIO OF CARRIER AGGREGATION - Disclosed are a method and device for R-PDCCH transmission in the scenario of carrier aggregation. By way of applying the technical solution of the embodiments of the present invention, multi-carrier aggregation transmission is supported between the relay node and the base station. The base station sends a component carrier carrying the R-PDCCH to the relay node and schedules the resources in each component carrier by way of the R-PDCCH carried in the component carrier. Thus what is achieved is that the base station communicates with the relay node by way of a plurality of aggregated component carriers, enabling the link transmission resources between the base station and the relay node to support multi-carrier PDCCH scheduling, improving the transmitting capacity of the link between the base station and the relay node, and improving the system performance. | 10-24-2013 |
20130286948 | UPLINK POWER CONTROL METHOD, POWER CONTROL PARAMETER CONFIGURATION METHOD AND APPARATUS THEREOF - Disclosed are an uplink power control method, power control parameter configuration method and apparatus thereof. The uplink power control method comprises: a user equipment receives data in M downlink sub-frames of N downlink carriers and generates uplink control information, wherein the uplink control information of the M downlink sub-frames is transmitted in one uplink sub-frame; the user equipment determines ΔF_PUCCH(F) and h(n) for calculating the transmit power of a physical uplink control channel (PUCCH) according to whether the number of bits of the uplink control information is larger than a predefined threshold; ΔF_PUCCH(F) represents the power offset of different PUCCH formats relative to the PUCCH format 1a, h(n) represents the power offset corresponding to the number of transmission bits of the PUCCH; the user equipment calculates the PUCCH transmit power according to ΔF_PUCCH(F) and h(n), and sending the uplink control information on the PUCCH using the calculated transmit power. The present is invention can improve the accuracy of power control, thus enhance the transmission performance of the uplink control information. | 10-31-2013 |
20130308563 | METHOD, SYSTEM AND DEVICE FOR ADAPTIVE MODULATION AND CODING - An adaptive modulation and coding method includes selecting punctured Physical Resource Blocks (PRBs) to transmit downlink data for User Equipment (UE); determining Transport Block Size (TBS) and number of punctured PRB pairs for transmission to the UE based on the carried service; scheduling downlink data for the UE based on determined TBS, and transmitting the number of used punctured PRB pairs and a Modulation and Coding Scheme (MCS) sequence number to the UE; and the UE converting number of the punctured PRB pairs to number of normal PRB pairs, determining modulation scheme and TBS sequence number based on the MCS sequence number, and determining TBS of the downlink data based on number of normal PRB pairs and TBS sequence number. | 11-21-2013 |
20130343217 | METHOD, SYSTEM, AND DEVICE FOR CONFIRMING UPLINK-DOWNLINK CONFIGURATION - Provided are a method, a system, and a device for confirming an uplink-downlink configuration, for use in confirming via interference detection whether or not a cell is capable of conducting independently the uplink-downlink configuration. The method comprises: a network side device confirming the value of an interference parameter of a target cell ( | 12-26-2013 |
20140003288 | METHOD, SYSTEM, AND DEVICE FOR CONFIRMING UPLINK-DOWNLINK CONFIGURATION | 01-02-2014 |
20140022994 | POWER CONTROL METHOD AND DEVICE - A power control method and device are disclosed. The method comprises: a user equipment receiving a power adjustment value corresponding to transmit diversity determined and sent by a network side device; the user equipment determines a transmission power for a PUCCH transmission according to the power adjustment value. In the embodiment of the present invention, the transmission power adopted by the transmission PUCCH channel is determined according to the power adjustment value corresponding to the transmission diversity, solving the problem of inaccurate power control after introducing the PUCCH transmission diversity, so that each PUCCH format is capable of performing transmission diversity power control independently. | 01-23-2014 |
20140126501 | METHOD AND DEVICE FOR INTER-CELL INTERFERENCE COORDINATION - The present invention provides a method and a device for inter-cell interference coordination. The method comprises: acquiring sub-frame configuration information of neighbor cells; determining whether the neighbor cells are configured with transmissions in different directions on the same sub-frame; and if yes, performing interference coordination between the neighbor cells according to acquired data transmission-related information of the neighbor cells on the same sub-frame. Through the present invention, neighbor TDD base station cells are enabled to perform transmissions in different directions on the same time resource, interference is avoided through the interference coordination, and the situation in the conventional TDD interference coordination method that different cells are forced to use the same sub-frame configuration and cannot adapt to service requirements of the cells is avoided. | 05-08-2014 |
20140133365 | Indication And Processing Method And Device For Resource Occupancy Mode - There is disclosed a method of indicating a resource occupancy scheme and processing a resource occupancy scheme indicator so as to enable a UE to be aware a resource occupancy scheme of the network side and avoid an unnecessary power waste and unnecessary interference, and in the method, a base station generates a corresponding resource indicator for a resource occupancy scheme of a legacy control resource area and an enhanced control resource area in each downlink subframe to be transmitted in a specific periodicity and sends the resource indicator to a UE in a resource indication message, and the UE determines from the obtained resource indicator the resource occupancy scheme of the legacy control resource area and the enhanced control resource area in each downlink subframe to be transmitted in the specific periodicity and performs a corresponding resource handling mode, so that the UE can blindly detect in PDCCH common and user spaces or receive control information carried on PHICH resource at an accurate position to thereby avoid an unnecessary power waste of and unnecessary interference to the UE due to blind detection or reception and improve effectively the performance of a system. | 05-15-2014 |
20140140251 | DATA TRANSMISSION METHOD AND DEVICE IN CARRIER AGGREGATION SYSTEM - Disclosed are a data transmission method and device in a carrier aggregation system, used for realizing the data transmission of UE which does not support uplink and downlink transmission simultaneously in a carrier aggregation system which uses different TDD uplink and downlink configurations. The data transmission method in a carrier aggregation system provided in the present application includes: an eNB performing data transmission with specific user equipment (UE) according to the time division duplex (TDD) uplink and downlink sub-frame configuration employed by a specific component carrier in a carrier aggregation system by means of a component carrier in the carrier aggregation system, wherein said specific UE is TDDUE which does not support simultaneously performing uplink data transmission and downlink data transmission in an identical sub-frame. | 05-22-2014 |
20140153451 | METHOD, SYSTEM AND APPARATUS FOR SENDING AND RECEIVING FEEDBACK INFORMATION - The present invention relates to the technical field of wireless communication, particularly relates to a method, system and apparatus for sending and receiving feedback information, to be used for transmitting the feedback information after the aggregation of carriers with different time division duplex (TDD) uplink and downlink configurations. The method of an embodiment of the present invention comprises: determining a dedicated feedback timing relationship by using a user equipment (UE) aggregating carriers with different TDD uplink/downlink configurations; the UE transmitting the feedback information corresponding to the downlink data on the primary carrier according to the determined dedicated feedback timing relationship. Because the feedback information can be transmitted after the aggregation of carriers with different TDD uplink and downlink configurations, thus the transmission efficiency and system performance after the aggregation of carriers with different TDD uplink and downlink configurations are improved. | 06-05-2014 |
20140177556 | METHOD, SYSTEM AND APPARATUS FOR INDICATING RESOURCE POSITION AND BLINDLY DECODING CHANNEL - Disclosed in the embodiments of the present invention are a method, system and thereof equipment for resource location indication and blind channel estimation. The method, system and thereof equipment, relating to the wireless communication technology field, are disclosed to solve the problem that physical downlink control channel (PDCCH) can't be received by a terminal correctly. In the present invention, information about the resource locations of common search space (CSS) and UE-specific search space (UESS) of PDCCH is transmitted from a base station to a terminal. Blind estimation is implemented by the terminal according to the resource locations of CSS and UESS of the PDCCH. The problem that PDCCH can't be received by a terminal correctly is solved by applying the present invention. | 06-26-2014 |
20140219201 | ACK/NACK/SR RESOURCE MAPPING METHOD AND APPARATUS - Examples of the present disclosure provide an ACK/NACK/SR resource mapping method and an apparatus. According to the technical solution provided by the examples of the present disclosure, in a system including a terminal utilizing a first type protocol and a terminal utilizing a second type protocol, the base station allocates the ACK/NACK/SR resources corresponding to the second type protocol in an area outside of the ACK/NACK/SR resource area reserved for the terminal utilizing the first type protocol, and informs the terminal utilizing the second type protocol of the allocation information of the corresponding ACK/NACK/SR resources. Thus, the terminal utilizing the second type protocol may transmit feedback information via the corresponding ACK/NACK/SR resources. | 08-07-2014 |
20140286297 | METHOD AND APPARATUS FOR TRANSMITTING DOWNLINK CONTROL INFORMATION - Examples of the present disclosure provide a method for transmitting downlink control information to effectively support the two transmission modes of the E-PDCCH. The base station configures the localized E-PDCCH resource and the distributed E-PDCCH resource. The user terminal detects the DCI in the search space corresponding to the localized E-PDCCH resource and the search space corresponding to the distributed E-PDCCH resource, so as to obtain the downlink control information transmitted by the base station. | 09-25-2014 |
20140293909 | UPLINK FEEDBACK METHOD, SYSTEM AND DEVICE - There are disclosed a method of and system and apparatus for performing an uplink feedback, applicable to a dynamic sub-frame system, so as to avoid collision of ACK/NACK resources between a non-dynamic system and a dynamic system from occurring. The method includes: determining ACK/NACK resource for carrying ACK/NACK, corresponding to downlink data in a sub-frame n according to a set of sub-frames including a sub-frame in which the downlink data is received; and transmitting ACK/NACK information corresponding to the downlink data over the ACK/NACK resource in the sub-frame n, wherein the set of sub-frames includes a first set of sub-frames and/or a second set of sub-frames; the set of sub-frames is determined by obtained uplink/downlink sub-frame configuration information and flexible sub-frame information; the uplink/downlink sub-frame configuration information indicates the type of each sub-frame in a radio frame as an uplink sub-frame, a downlink sub-frame and a special sub-frame; and the flexible sub-frame information indicates the type of each sub-frame in a radio frame as an uplink sub-frame, a downlink sub-frame, a special sub-frame and a flexible sub-frame, wherein the flexible sub-frame can be used for transmission of uplink or downlink data. | 10-02-2014 |
20140301341 | INFORMATION SENDING AND BLIND DETECTION METHOD AND DEVICE - Disclosed are an information sending and blind detection method and device, relating to the technical field of wireless communication technologies and for realizing a new information sending and blind detection method over a physical downlink control channel (PDCCH). In the present application, a base station determines a plurality of preset blind detection candidate sets, each blind detection candidate set containing at least one PDCCH candidate resource; and uses the PDCCH Candidates in at least one blind detection candidate set of the plurality of blind detection candidate sets to send control information to a terminal. The terminal determines a plurality of preset blind detection candidate sets, and performs blind detection of control information over the PDCCH Candidates in each blind detection candidate set of the plurality of blind detection candidate sets. By applying the present applications, a new information sending and blind detection method over a PDCCH is realized. | 10-09-2014 |
20140328226 | DATA TRANSMISSION METHOD AND DEVICE - The embodiments of the present invention relate to the field of wireless communication technology, especially relate to a data transmission method and device, which are used for supporting the signal reception and transmission between other entities other than the communication between a user device and a base station in the premise of being applied to the signal reception and transmission between the user device and the base station. The signal transmission method provided by the embodiments of the present invention comprises the following: the user device determines the sub-frames belonging to the first set and the sub-frames belonging to the second set in the wireless frames, wherein each sub-frame only belongs to one set; the user device communicates with the resident cell base station by using the sub-frames in the first set, and communicates with the entities other than the resident cell base station by using the sub-frames in the second set. As the sub-frames in the wireless frames are divided into two kinds of sets with different use, so that in the premise of being applied to the signal reception and transmission between the user device and the base station, the signal reception and transmission between other entities can be supported. | 11-06-2014 |
20140329555 | UPLINK POWER CONTROL METHOD AND DEVICE - Disclosed is an uplink power control method, which is used for realizing power control over uplink channels with different uplink transmission times so as to ensure that the total transmit power of terminal equipment in a sub-frame does not exceed maximum transmit power and that a system can work normally. The method comprises the following steps: the terminal equipment determines the target transmit power of each uplink channel/signal transmitted in a current uplink sub-frame; the terminal equipment divides the transmission time of the uplink channels/signals in the current uplink sub-frame into a plurality of transmission time buckets, wherein the uplink channels/signals at any moment in each transmission time bucket are the same, and the uplink channels/signals in each transmission time bucket are not exactly the same as those in the other transmission time buckets; and in each transmission time bucket, the terminal equipment performs the power control on the target transmit power of the uplink channels/signals transmitted in the transmission time bucket to ensure that the transmit power sum of the uplink channels/signals transmitted in the transmission time bucket does not exceed the preset maximum transmit power of the terminal equipment after the power control. Also disclosed a device for implementing the method. | 11-06-2014 |
20140348125 | METHOD, SYSTEM AND APPARATUS FOR INFORMATION TRANSMISSION - Embodiments of this application relate to the field of wireless communications and particularly to a method of and system and apparatus for transmitting information so as to transmit DCI over E-PDCCHs. A method according to an embodiment of the invention includes: the network side selecting candidate E-PDCCHs for carrying DCI from a set of candidate E-PDCCHs, wherein the set of candidate E-PDCCHs includes E-PDCCHs occupying a plurality of time-frequency resources consecutive in frequency domain and E-PDCCHs occupying a plurality of time-frequency resources inconsecutive in frequency domain; and the network side transmitting the DCI over the selected candidate E-PDCCHs. With the method according to the embodiment of the invention, DCI can be transmitted over E-PDCCHs to thereby enable effectively the E-PDCCHs to occupy both the resources consecutive in frequency domain and the resources inconsecutive in frequency domain and improve the transmission efficiency and the system performance. | 11-27-2014 |
20150016386 | METHOD AND DEVICE FOR DETERMINING EPDCCH RESOURCES - The present disclosure provides a method and an apparatus for determining number of ePDCCH resource units. The method includes: determining number of symbols occupied by PDCCH, number of CRS ports, number of DMRS ports and CSI-RS configuration in a subframe; and determining resources available for transmitting an ePDCCH in PDSCH area of the subframe according to the number of symbols occupied by the PDCCH, the number of CRS ports, the number of DMRS ports and the CSI-RS configuration. | 01-15-2015 |
20150043394 | DOWNLINK CONTROL SIGNALLING TRANSMISSION METHOD AND DEVICE - The invention relates to the field of communications and provides a method of and apparatus for transmitting downlink control information, and the method includes: for transmission of DCI over any carrier, determining DAI information fields in uplink scheduling DCI and downlink scheduling DCI to be carried over the carrier and an HARQ process number information field in the downlink scheduling DCI dependent upon PDSCH HARQ feedback scheme currently in use; and determining a UL index information field in the uplink scheduling DCI to be carried over the carrier dependent upon a PUSCH scheduling scheme currently in use, so that an appropriate DCI design scheme is provided for an application scenario of across-system carrier aggregation to thereby satisfy a demand for the use of an evolved process in an LTE system and improve effectively the performance of the system. | 02-12-2015 |
20150045076 | METHOD AND DEVICE FOR PERFORMING INTERFERENCE CONTROL - An embodiment of the invention relates to wireless communication technical field, especially relates to a method and device for performing interference control to reduce crossed time slot interference in Time Division Duplex (TDD) networking. The method of embodiment of the present invention comprises: network side device determines service load parameter value of each cell and the measurement parameter between the base stations which random two cells belongs to; For the two cells, said network side device determines an interference control threshold according to the service load parameter value of the two cells, and compares the determined said measurement parameter with said interference control threshold, and performs cluster partition according to the comparing result. Said network side device performs interference control according to the partitioned cluster. Because the factor of cell service load is considered in performing TDD crossed time slot interference control, thus the crossed time slot interference in TDD networking is reduced. | 02-12-2015 |
20150049654 | TIME-DIVISION DUPLEXING COMMUNICATION METHOD, SYSTEM AND DEVICE - The embodiments of the present invention relate to the technical field of wireless communications, and particularly, to a time-division duplexing communication method, system and device, which are used for solving the problem in the prior art that there is no uplink or downlink HARQ sequential relationship for a dynamic uplink and downlink subframe distribution solution. A time-division duplexing uplink data sending method in the embodiments of the present invention comprises: through a subframe n in a wireless frame, user equipment receiving indication information which comes from the network side; and according to the indication information, when it is determined that PUSCH data is required to be sent to the network side, sending the PUSCH data through at least one uplink subframe after the subframe n, the subframe n being a downlink fixed subframe or a special subframe. Proposed is an uplink and downlink HARQ sequential relationship for a dynamic uplink and downlink subframe distribution solution, so that a dynamic TDD system can transmit uplink and downlink data. | 02-19-2015 |
20150071365 | METHOD, SYSTEM, AND DEVICE FOR PERFORMING UPLINK TRANSMISSION - The embodiments of the present invention relate to the technical field of wireless communications, and in particular, to a method, system and device for performing uplink transmission, which are used for solving the problems existing in the prior art that the spectrum efficiency and transmission efficiency are relatively low when the uplink transmission is performed in the case that the uplink transmission power is limited. The method of the embodiments of the present invention comprises: user equipment mapping complex symbol data obtained by modulation mapping to Q sub-frames, where Q is a positive integer; the user equipment modulating the complex symbol data mapped to each sub-frame, respectively, so as to generate sending signals corresponding to each sub-frame; and the user equipment sending the sending signals over the corresponding sub-frames. Since the embodiments of the present invention map the data in a data packet into a plurality of sub-frames for transmission, the total transmission power of the user equipment can be correctly received, thereby improving the spectrum efficiency and transmission efficiency when the uplink transmission is performed in the case that the uplink transmission power is limited. | 03-12-2015 |
20150085774 | RESPONSE INFORMATION TRANSMISSION METHOD, SYSTEM AND DEVICE - Disclosed are a response information transmission method, system and device. A base station can configure at least two PUCCH transmission carriers for user equipment, accordingly, the user equipment can select at least one PUCCH transmission carrier from the at least two PUCCH transmission carriers which are configured by the base station to transmit response information fed back on a corresponding subframe, and accordingly, the base station can receive the response information which is fed back by the user equipment on at least one PUCCH transmission carrier. The technical solution increases the number of PUCCH transmission carriers, so that compared with the manner of only configuring one PUCCH transmission carrier in the prior art, the reconfiguration operations caused by the movement of user equipment can be reduced, thereby reducing the condition that UE cannot normally communicate in the process of reconfiguration, and reducing the signaling overhead caused by the reconfiguration operation. | 03-26-2015 |