Abstract: The present invention discloses a method for beam forming transmission, comprising the following steps: the eNB mapping the downlink data of the user and the UE-specific reference signals carried in the DwPTS Field for beam forming transmission according to the preset mapping structure, and performing the beam forming process; the eNB performing the resource mapping on results of the beam forming process result, primary synchronization signal, control signaling, Cell specific reference signal and other user data to form the DwPTS Field data; and the eNB sending the DwPTS Field data to the UE. The present invention further discloses a system and a corresponding device for beam forming transmission. The present invention can realize beam forming transmission in the Special Field DwPTS and improve the performance of the system without introducing a new user UE-specific reference signal mapping structure, which is simple to be realized.

Abstract: The present invention discloses a method and device of reporting channel state information, including: user terminal selects the codebook used in reporting precoding matrix indicator (PMI) from double-stage codebook and selects PMI from the codebook; double-stage codebook involves codebook reflecting long-term/broadband information and that reflecting short-term/frequency selective channel information; and user terminal calculates channel quality indication; therein, when reporting through physical uplink control channel (PUCCH), the parameter used in calculating channel quality indication (CQI) includes the precoding matrix indicator (PMI) reported by user terminal through physical uplink shared channel (PUSCH); when reporting through physical uplink shared channel (PUSCH), the parameter used in calculating CQI includes the precoding matrix indicator (PMI) reported by user terminal through physical uplink control channel (PUCCH); user terminal selects the PMI and calculates CQI according to the specified rep

Abstract: 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.

Abstract: Disclosed are a buffer space allocation method and a device. The solution of the present invention enables the division of the buffer space in the buffer resource of a terminal equipment according to the currently configured carrier aggregation mode of the terminal equipment, so that the number of buffer spaces in the buffer can be adjusted according to the number of aggregated carriers, thereby improving the utilization rate of the buffer resource. The method is simple, easy to implement, and applicable to both FDD and TDD systems.

Abstract: The present invention discloses a transmission method and apparatus for non-periodic SRS. eNB configures time-domain configuration parameter of non-periodic SRS through higher layer signalling or downlink physical control channel signalling; terminal equipment transmits non-periodic SRS in indicated time-domain resource. The application of the technical solution of the embodiments of the present invention can reduce signalling consumption through high layer semi-static configuration of time-domain resource of non-periodic SRS. On one hand, flexible non-periodic SRS time-domain transmission is allowed for terminal equipment which can send non-periodic SRS in multiple subframes, which is featured by low sounding delay and great sounding bandwidth; on the other hand, flexible timing mode is also permitted for terminal equipment which brings little restriction to scheduling.

Abstract: 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.

Abstract: The present invention discloses a method and device for processing codebook subset restriction, which includes: the codebooks for every rank of N antenna ports are grouped, wherein N is a natural number; after grouping, the status of each group is identified as restricted or unrestricted by using one bit. The present invention can reduce the signaling overhead needed for codebook subset restriction.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: A method and apparatus for reporting channel state information (CSI) based on a physical uplink shared channel (PUSCH) are used to realize correct reporting of the CSI based on double code books. The method includes the following steps: a reporting mode configuration signaling for the CSI sent from a network side is received, and said reporting mode configuration signaling for the CSI at least carries a designated reporting mode identifier; a first CSI aiming at the whole bandwidth of a system is established according to a reporting type corresponding to said reporting mode identifier; the whole bandwidth of the system is divided into at least two frequency band subclasses, and a second CSI aiming at a designated frequency band subclass is established according to the reporting type corresponding to said reporting mode identifier; and when a reporting indication signaling sent from the network side is received, said first CSI and said second CSI are transmitted to the network side.

Abstract: 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.

Abstract: A method, apparatus and system for downlink pilot transmission solve the problem of power differences among OFDM symbols caused by Walsh Codes. The transmission method is that dedicated pilots are transmitted in the manner of code division multiplexing (CDM) or hybrid of CDM and frequency division multiplexing (FDM), wherein the dedicated pilots are configured with orthogonal sequence sets according to a preset frequency-domain granularity and rules on the resources for transmitting the dedicated pilots, and the same orthogonal sequence set is employed for the dedicated pilots in each frequency-domain granularity.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: A method and apparatus for configuring downlink scheduling information are used to control times of blind detection in multi-carrier system.

Abstract: 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.

Abstract: A method and an apparatus for an uplink control signaling transmission in a time division duplex OFDMA system are provided for the long term evolution time division duplex (LTE TDD). A signaling processing unit reserves frequency resource for an uplink control channel according to the total amount of the uplink control signaling, and the reserved frequency resource are assigned on both sides of the frequency domain used by uplink time slots, so that the uplink control signaling of a terminal UE is transmitted on the position and the bandwidth of the reserved frequency resource. The transmitted uplink control signaling is transmitted on respective reserved uplink control sub-channels by an intra-subframe hopping way, each terminal UE or a group of UEs corresponding to a frequency-hop sequence. The present invention is simple to realizes and capable of utilizing resource repeatedly and utilizing the time domain and frequency domain diversity simultaneously.