摘要:
The present invention provides a method and device for selecting a resource processing manner, wherein the method is applied to a communication system including a user terminal, a relay station and a base station, and comprises the following operations: a configuring step of configuring a dedicated pilot, wherein the dedicated pilot is configured to measure parameters of a link from the relay station to the user terminal; an acquiring step of acquiring a first parameter value of a common pilot and a second parameter value of the dedicated pilot; a comparing step of comparing the first parameter value with the second parameter value; and a selecting step of selecting a resource processing manner according to the comparison result, wherein the resource processing manner comprises: a cooperation manner and/or a non-cooperation manner.
摘要:
The present invention discloses a method for scheduling users in coordinated scheduling, which is applied in a long term evaluation-advanced system, a coordinated cell determines and stores user pairing information in initial scheduling, and the coordinated cell uses the user pairing information that has been stored to determine a scheduled user in subsequent iterative scheduling. The present invention also discloses a corresponding base station. With the scheduling schemes in the present invention, in intra-cell scheduling, user pairing information is stored in an initial scheduling process and is used in subsequent iterative scheduling without performing multiple user pairing search in the iterative scheduling, which reduces the computation amount in the iterative scheduling and system resources occupied by the iterative scheduling and accelerates the system processing time in a premise of not reducing the system performance, thereby making the performance in the whole domain trend to the optimal.
摘要:
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.
摘要:
A method of downlink power allocation is provided in order to fully utilize the available power and to avoid imbalanced power in different symbols. The method comprising muting a cell's resource elements (REs) that correspond to locations of common reference signal (CRS) REs of an interfering cell, and allocating unused power of the muted REs to CRS REs or a Physical Downlink Shared Channel (PDSCH) data RE of the cell after the muting.
摘要:
The invention provides a method and a device for confirming a downlink inner loop power control mode by a Node B in an idle mode and in a CELL_FACH state. The method includes that: when the Node B detects that there is User Equipment (UE) using an E-DCH in the idle mode or in the CELL_FACH state, confirming to use a mode 0 to receive Transmit Power Control (TPC) bit information sent on a Dedicated Physical Control Channel (DPCCH) by the UE, and performing downlink inner loop power control on a Fractional Dedicated Physical Channel (F-DPCH). The method and device provided in the invention enable the inner loop power control mode for the F-DPCH made by the Node B to be consistent with the TPC bit information mode fed back by the UE, and enable the F-DPCH to use proper transmit power to transmit.
摘要:
A method of CQI feedback comprises: in a CoMP system, a terminal feeding back a CQI corresponding to a comprehensive channel formed between the terminal and all transmission nodes in a CATS or each CQI corresponding to each channel between the terminal and each transmission node. A system of CQI feedback; in the system is also disclosed, a feedback unit at the terminal side is used in the CoMP system to calculate and feed back the CQI corresponding to the comprehensive channel formed between the terminal and all the transmission nodes in the CATS or each CQI corresponding to each channel between the terminal and each transmission node. With the method and system of the present invention, not only the CQI feedback in the CoMP system can be realized, but also the difference between the CQI feedback in the control channel and that in the traffic channel can be avoided.
摘要:
The present invention provides a method and device for selecting a resource processing manner, wherein the method is applied to a communication system including a user terminal, a relay station and a base station, and comprises the following operations: a configuring step of configuring a dedicated pilot, wherein the dedicated pilot is configured to measure parameters of a link from the relay station to the user terminal; an acquiring step of acquiring a first parameter value of a common pilot and a second parameter value of the dedicated pilot; a comparing step of comparing the first parameter value with the second parameter value; and a selecting step of selecting a resource processing manner according to the comparison result, wherein the resource processing manner comprises: a cooperation manner and/or a non-cooperation manner.
摘要:
The present application discloses a dynamic sub-frame configuration method in the TDD system. The method includes: in the case that the uplink and downlink sub-frame configuration of a cell and the uplink and downlink sub-frame configuration of its neighboring cell are different in the configuration of a sub-frame, a part of resources on the sub-frame are made to be silent for the cell, and the resources on the sub-frame corresponding to the resources not silenced on the sub-frame for cell are made to be silent for the neighboring cell; or, a part of resources on the sub-frame are made to be silent for the neighboring cell, and the resources on the sub-frame corresponding to the resources not silenced on the sub-frame for the neighboring cell are made to be silent for the cell. The present application further provides a dynamic sub-frame configuration apparatus in the TDD system. Not only can the problem that inter-cell interference is introduced during sub-frame switching in the TDD system be solved, but also the normal uplink and downlink measurement can be guaranteed, without affecting ACK/NACK is feedback and HARQ process, and meantime the frequency spectrum utilization ratio is increased.
摘要:
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.
摘要:
In the invention, a method for determining a channel quality indicator (CQI) value in coordinated multi-point transmission/reception (COMP) is provided, wherein the method comprises the following steps: a receiving side feeds back an independent CQI value or normalized useful signal power of each point of all or part of the points in a COMP measurement set or reporting set to a network side; the receiving side feeds back the correlation coefficient between the channel of each point and the channel of a master serving point to the network side; and the network side determines, according to the correlation coefficient and the independent CQI value of each point or normalized useful signal power, the CQI value used for coordinated multi-point transmission/reception. In the invention, a device is also provided for determining the CQI value in COMP. The feedback overhead is low in the present invention, and a more accurate final CQI value can be obtained through function operation.