Abstract:
The present document relates to a method for processing channel state information (CSI), base station and terminal. The method for processing channel state information includes: a base station configuring a plurality of CSI processes for a terminal, each CSI process at least including information of a channel measurement part and information of an interference measurement part; when the base station configures corresponding CSI reference processes for partial or all CSI processes, at least limiting a rank indicator (RI) of the CSI processes for calculating a CSI report to be consistent with an RI of the CSI reference processes by configuring the CSI reference processes; and for the CSI processes configured with the CSI reference processes, the base station receiving the CSI report of the CSI processes according to the RI, or the RI and a PTI, or the RI and a PMI0 corresponding to the CSI reference processes.
Abstract:
A method and system for indicating a transmission parameter are provided in the present invention. The method includes: when multi-user multi-input multi-output (MIMO) data are transmitted, using a newly-added indication signaling in a downlink control information format to indicate different joint encoded parameters when numbers of enabled transport blocks are different. Through adding new indication signaling in the present invention, different joint encoded parameters are indicated during the multi-user MIMO data transmission and the MIMO multi-user transmission based on the demodulation reference signal is supported.
Abstract:
Provided is a method and device for interacting signaling between nodes, a method and device for controlling uplink power, and an uplink transmission method and device, wherein the method includes that: a node respectively receives uplink power control information transmitted by other nodes using a basic resource element as a unit, and transmits the uplink power control information of the node to the other nodes by using the basic resource element as a unit, wherein the basic resource element includes at least one of the followings: a terminal or a terminal cluster, and a basic unit resource. The disclosure solves the problem in the related art that an uplink power reduction method cannot ensure uplink transmission reliability in a double-link scenario, thus ensuring the accuracy of uplink transmission in the double-link scenario.
Abstract:
Disclosed in the present invention are a transmission method and a reception method for data and control information, an eNB and a user equipment, wherein the transmission method includes: an eNB transmitting data and/or downlink control information to a user equipment within a service range in TDD special subframes in accordance with specific rules; wherein the specific rules are pre-configured in the eNB or pre-indicated by the eNB to the user equipment via a high-layer signaling; wherein, a serving cell in which the user equipment is located currently performs a coordinated multiple-point (CoMP) transmission with one or more other cells and has an independent TDD special subframe configuration compared with other cells. The eNB includes a memory module and a transmitting module.
Abstract:
An interference measurement method, a network side device and a terminal device are disclosed. The interference measurement method includes: a network side sending interference measurement indication information to a terminal, and indicating the terminal to perform interference measurement, wherein the interference measurement indication information is used for indicating one or more kinds of the following information to the terminal: interference measurement modes used for performing interference measurement; and parameter configuration information used for interference measurement.
Abstract:
Provided are a method and device for determining indication signalling of a pilot signal for channel measurement, and method and device for feeding back CSI. The method for determining indication signalling of pilot signal for channel measurement includes: a NodeB sends DL control signalling, which includes transmission resource configuration information of a non-periodic CSI-RS, to a terminal, wherein the transmission resource configuration information of the non-periodic CSI-RS is used for determining a location of the non-periodic CSI-RS, and the non-periodic CSI-RS is used for instructing the terminal to perform channel measurement. The non-periodic CSI-RS is determined according to the transmission resource configuration information of the non-periodic CSI-RS, and channel measurement is further performed according to the non-periodic CSI-RS, so that the problems of higher overhead and resource waste caused by periodical sending of a CSI-RS in the related art may be solved, resources are saved, and sending overhead is reduced.
Abstract:
The present invention provides a method and device for generating and mapping a Channel State Information Reference Signal (CSI-RS) sequence, and the method includes: generating a pseudo-random sequence according to a pseudo-random sequence initial value, performing a Quadrature Phase-Shift Keying (QPSK) modulation on the pseudo-random sequence, and obtaining a first CSI-RS sequence according to maximum bandwidth of system; and cutting the first CSI-RS sequence according to the actual bandwidth of the system, obtaining a second CSI-RS sequence, and mapping the second CSI-RS sequence to a time frequency location of a CSI-RS antenna port. The CSI-RS reference signal sequence can be generated or obtained respectively at the UE terminal and eNB terminal in accordance with the stated methods for generating and mapping the reference sequence according to known parameters by the present invention, so that the calculated CSI-RS sequence can be utilized to measure the channel at the UE terminal.