摘要:
A telecommunications system (700, 800, 1000) is configured to perform a method for mapping synchronization signals. The method includes transmitting data, reference signals, synchronization signals and control elements to at least one of the plurality of subscriber stations. The method also includes configuring enhanced physical downlink control channel (e-PDCCH) DMRS parameters (400, 720, 725, 825, 830, 910, 920, 1020, 1030) for each of a plurality of e-PDCCH sets.
摘要:
A user equipment, UE, in a wireless communication system. The UE comprises a transceiver and at least one processor coupled to the transceiver and configured to receive reference signals within a discovery signals measurement timing configuration, DMTC, period, from an eNodeB, eNB, operating in a cell over an unlicensed spectrum band; and transmit, to the eNB, a channel state information, CSI, measurement report obtained based on the reference signals, wherein the reference signals are transmitted based on a channel sensing on the unlicensed spectrum band, wherein each of the reference signals comprises at least one of a cell-specific reference signal, CRS, or a CSI-RS, wherein the reference signals are received at a first detected occasion in a subframe containing a primary synchronization signal, PSS, a secondary synchronization signal, SSS, and a CRS.
摘要:
Methods and apparatus for transmitting power setting information in a downlink Physical Downlink Shared Channel (PDSCH) in a communication system. In this communication system, a plurality of methods for calculating traffic-to-pilot ratios (T2P) are established. In addition, a mapping scheme between a plurality of overhead signals and a plurality of reference signal (RS) overhead ratios, · RS , and the plurality of T2P calculation methods is established. A user-specific T2P ratio P B , k / P RS for certain OFDM symbols, a RS overhead ratio · RS and a calculation method selected from the plurality of T2P calculation methods are assigned to a wireless terminal. Then, an overhead signal corresponding to both of the assigned RS overhead ratio · RS and the assigned T2P calculation method is selected in accordance with the mapping scheme and is transmitted to the wireless terminal. In addition, the user-specific traffic-to-pilot ratio P B , k / P RS is transmitted to the wireless terminal. The wireless terminal may calculate the traffic-to-pilot ratios across different transmission antennas and different OFDM symbols in dependence upon the received traffic-to-pilot ratio P B,k / P RS , and the RS overhead ratio and the T2P calculation method indicated by the RS overhead signal.
摘要:
A method for CSI report transmission includes detecting a collision in a subframe, between a first PUCCH CSI report of one serving cell with which a UE is configured in one of transmission modes 1 to 9, and a second PUCCH CSI report of another serving cell with which the UE is configured in transmission mode 10. Upon the reporting types of the collided PUCCH CSI reports having a same priority, the method transmits the first PUCCH CSI report if the CSI process index of the second PUCCH CSI report has a positive value other than 1. A method for CSI report transmission includes configuring, via a higher layer, a UE configured in transmission mode 10 whether to create a respective CSI report(s) for each aperiodic CSI process or not, using an information element including at least three one-bit variables.
摘要:
Methods and apparatus of a base station or a User Equipment (UE) in communication with each other are provided. The UE is configured by the base station for operation with an adapted Time Division Duplex (TDD) UpLink-DownLink (UL-DL) configuration. A process enabling the base station to configure a UE with resources for obtaining channel and interference measurements in two sets of Transmission Time Intervals (TTIs) and a process for the UE to obtain a Channel State Information (CSI) from the channel and interference measurements in the two sets of TTIs are provided.
摘要:
A method and system for communication is disclosed. Allocating resource based on a resource block group determined dependent on a system bandwidth. Applying a same precoder to all physical resource block within a precoding subset dependent on the system bandwidth. A number of physical resource block within the precoding subset and a number of resource block within a resource block group for resource allocation are 1, if the system bandwidth is within 10 physical resource blocks. A number of physical resource block within the precoding subset and a number of resource block within a resource block group for resource allocation are 2 if the system bandwidth is between 11 and 26. A number of physical resource block within the precoding subset and a number of resource block within a resource block group for resource allocation are 3 if the system bandwidth is between 27 and 63.
摘要:
A base station is provided. The base station includes a transmit path circuitry to transmit an uplink grant to a subscriber station, the uplink grant indicating a first modulation and coding scheme (MCS) value for a first codeword transmission and a second MCS value for a second codeword transmission. The base station also includes a receive path circuitry to receive a multiple-input multiple-output (MIMO) uplink subframe from the subscriber station, the MIMO uplink subframe having a first subset of layers used for the first codeword transmission and a second subset of layers used for the second codeword transmission. Acknowledgement/negative acknowledgement (ACK/NACK) information and rank indication (RI) information are mapped onto both the first subset of layers and the second subset of layers. Channel quality information (CQI) is only mapped onto either the first subset of layers or the second subset of layers.
摘要:
In this invention, several open-loop solutions that encompass the small delay CDD codeword cycling, codeword cycling between different re-transmissions of both small and large delay CDD are proposed. In addition, an open-loop codeword cycling method for SFBC+FSTD scheme, as well as its extension to SFBC+FSTD based HARQ, are proposed. In one method, a plurality of information bits are encoded, scrambled and modulated to generate a plurality of modulation symbols. The plurality of modulation symbols are mapped onto the subcarriers in at least one transmission layer of a transmission resource. The modulation symbols are then precoded by using a matrix for cyclic delay diversity and a set of codewords from a certain codebook to generate a plurality of precoded symbols. The codewords are cycled for every a certain number of subcarriers. Finally, the precoded symbols are transmitted via a plurality of transmission antennas.