Abstract:
A communication method, a base station, a radio communication node, and a user equipment are provided. A base station determines first resource configuration information, where the first resource configuration information is used for indicating N radio resource sets that are used when N radio communication nodes separately perform communication with a user equipment UE, and the radio resource includes a time domain resource and/or a frequency domain resource. The base station sends the first resource configuration information to the UE, where the UE communicates with a corresponding transmission point by using respective radio resource sets of transmission points, and the respective radio resource sets of the transmission points do not intersect. Therefore, a base station does not need to schedule a radio resource, thereby lowering a delay requirement on a backhaul link and eliminating interference.
Abstract:
Embodiments of the present application provide a method, a terminal, and a base station for transmitting information. In the embodiments of the present application, subframe configuration information of a first carrier is obtained, where the subframe configuration information is used to indicate a type-1 subframe of the first carrier and a type-2 subframe of the first carrier, the type-1 subframe is used for the base station to transmit, in system bandwidth, first information including a first CRS, the first CRS is used for demodulation, and the type-2 subframe is not used for the base station to transmit a CRS used for demodulation, so that the terminal can receive, according to the subframe configuration information and on the first carrier, information sent by the base station.
Abstract:
The present invention provides a method includes: determining, by a base station, MBSFN subframe configuration signaling according to a configuration of a cell, where the MBSFN subframe configuration signaling includes CRS transmission configuration information used to indicate a region for transmitting a CRS in a time domain; sending, the MBSFN subframe configuration signaling to the user equipment; and transmitting a signal. Another method includes: determining configuration signaling according to a configuration of a cell, where the configuration signaling includes configuration information of the cell, transmitted by using a SIB 2 and used to indicate, to user equipment, configuration information of a subframe using an extended CP, or second configuration information of a CP length, used to indicate configuration information of a frequency band using an extended CP and/or a frequency band using a normal CP in at least one subframe; sending the configuration signaling to the user equipment.
Abstract:
The present disclosure discloses a method and an apparatus for resource mapping and code division multiplexing. In the present disclosure, each cell selects a mapping scheme among at least two mapping schemes to implement resource mapping, which effectively reduces interference imposed on reference signal symbols of users at the edge of a cell; vector switching is performed for an orthogonal matrix to obtain multiple different codeword sequences and implement codeword design, so that a problem that the output power of reference signal symbols is unbalanced can be effectively alleviated.
Abstract:
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.
Abstract:
A method and a device for scrambling sequence configuration, a user equipment and a base station are provided. The method includes: obtaining a search space and/or a transmission mode corresponding to an enhanced control channel; performing a scrambling initialization operation according to the search space and/or the transmission mode, and determining an initialization value of a scrambling sequence; determining the scrambling sequence according to the initialization value of the scrambling sequence; and scrambling a transmission signal transmitted by the enhanced control channel according to the scrambling sequence and then transmitting, so that a user equipment which receives the transmission signal performs a descrambling operation according to the scrambling sequence in the transmission signal. Randomization of interferences between different cells or terminals can be guaranteed as far as possible.
Abstract:
The present invention provides a method of processing reference signal configuration information, a base station and a terminal. The method includes: sending, by a base station, first reference signal configuration information and at least one piece of second reference signal configuration information to a terminal, such that the terminal performs detection of downlink channel state information according to the first reference signal configuration information and the at least one piece of second reference signal configuration information, wherein the first reference signal configuration information includes configuration information of a reference signal sent by antenna port(s) identified by a first number of ports, and the second reference signal configuration information includes configuration information of a reference signal sent by at least one antenna port of other antenna ports than the antenna port(s) identified by the first number of ports among the antenna ports configured by the base station.
Abstract:
A precoding processing method and user equipment are disclosed. The precoding processing method includes: selecting a codebook vector for performing precoding processing for data among a codebook set of Nt antennas, where the codebook set includes a first codebook vector [ A B ] of a uniform linear array and a second codebook vector [ A - B ] generated according to the first codebook vector, where A is a (Nt/2)×1 vector composed of a first half of elements of the first codebook vector, B is a (Nt/2)×1 vector composed of a last half of elements of the first codebook vector, and Nt is a positive even number; and sending an index number of the codebook vector to a base station, whereupon the base station uses the codebook vector corresponding to the index number to perform precoding processing for the data to be transmitted by the antennas. Embodiments of the present invention make the codebook set compatible with two types of antenna configuration modes.
Abstract:
A method for determining codebook generation mode is disclosed by the present disclosure, comprising: A: grouping M kinds of ranks among N kinds of ranks supported by a user equipment (UE) into Z sets of rank, and for each set, respectively selecting a codebook generation mode from at least two preset codebook generation modes, where N, M and Z are integers greater than or equal to 1, M is less than or equal to N, and Z is less than or equal to M; B: informing the UE or a serving cell thereof of the selection. The present disclosure also discloses a UE and a base station. The system performance can be improved by adopting the method and devices of the present disclosure.
Abstract:
A method and an apparatus for sending a Precoding Matrix Index (PMI) and performing precoding are provided in the embodiments of the present invention. The method for sending the PMI comprises the following steps: a user equipment acquires the transmission channel capability of carrying the PMI; according to the transmission channel capability of carrying the PMI, the precoding matrices are selected from a locally-stored first codebook set to form a second codebook set; a first precoding matrix is selected from the second codebook set; an index corresponding to the first precoding matrix is sent to a base station over the transmission channel so as to make the base station can find out the first precoding matrix according to the index and precode the data according to the first precoding matrix. The embodiments of the present invention can realize the flexible configuration and use of the PMI.