摘要:
A method and a device for determining uplink control channel resources are disclosed by the embodiments of the present invention. With the technical solutions of the embodiments of the present invention, the uplink control resources, such as the ACK/NACK and the like, can be configured semi-statically. The method is applicable for both the FDD system and the TDD system. The overhead of the uplink feedback channel in the Long Term Evolution (LTE) carrier aggregation system is reduced. Therefore the system performance of the LTE multi-carrier advanced system is improved, and the system is compatible with the LTE Release 8 system well.
摘要:
There are disclosed a method of and system and apparatus for performing an uplink feedback, applicable to a dynamic sub-frame system, so as to avoid collision of ACK/NACK resources between a non-dynamic system and a dynamic system from occurring. The method includes: determining ACK/NACK resource for carrying ACK/NACK, corresponding to downlink data in a sub-frame n according to a set of sub-frames including a sub-frame in which the downlink data is received; and transmitting ACK/NACK information corresponding to the downlink data over the ACK/NACK resource in the sub-frame n, wherein the set of sub-frames includes a first set of sub-frames and/or a second set of sub-frames; the set of sub-frames is determined by obtained uplink/downlink sub-frame configuration information and flexible sub-frame information; the uplink/downlink sub-frame configuration information indicates the type of each sub-frame in a radio frame as an uplink sub-frame, a downlink sub-frame and a special sub-frame; and the flexible sub-frame information indicates the type of each sub-frame in a radio frame as an uplink sub-frame, a downlink sub-frame, a special sub-frame and a flexible sub-frame, wherein the flexible sub-frame can be used for transmission of uplink or downlink data.
摘要:
The present invention discloses a method and apparatus for receiving signals, which comprises the followings: receive signals on at least one receiving branch, which comprises at least two reception units, including one data reception unit and one pilot reception unit at least. Said signal refers to a codeword in a transmission codebook; calculate metric value of each codeword in said transmission codebook according to said received signal; obtain the codeword with maximal metric value among all said codewords and the metric value corresponding to this codeword; if this value exceeds threshold value, Determining the codeword corresponding to said maximal metric value; if this value is less than the threshold value, Determining discontinuously-sent DTX. In the present invention, perform joint demodulation of data symbol and pilot symbol to make the demodulation results more reliable; meanwhile; judge whether it is discontinuous transmission based on joint demodulation of data symbol and pilot symbol.
摘要:
There are disclosed a method of and system and apparatus for performing an uplink feedback, applicable to a dynamic sub-frame system, so as to avoid collision of ACK/NACK resources between a non-dynamic system and a dynamic system from occurring. The method includes: determining ACK/NACK resource for carrying ACK/NACK, corresponding to downlink data in a sub-frame n according to a set of sub-frames including a sub-frame in which the downlink data is received; and transmitting ACK/NACK information corresponding to the downlink data over the ACK/NACK resource in the sub-frame n, wherein the set of sub-frames includes a first set of sub-frames and/or a second set of sub-frames; the set of sub-frames is determined by obtained uplink/downlink sub-frame configuration information and flexible sub-frame information; the uplink/downlink sub-frame configuration information indicates the type of each sub-frame in a radio frame as an uplink sub-frame, a downlink sub-frame and a special sub-frame; and the flexible sub-frame information indicates the type of each sub-frame in a radio frame as an uplink sub-frame, a downlink sub-frame, a special sub-frame and a flexible sub-frame, wherein the flexible sub-frame can be used for transmission of uplink or downlink data.
摘要:
The present invention discloses a method and equipment for UCI transmission. Upon application of the technical solution provided in embodiments of the present invention, UE transmitting UCI through a selected PUSCH is realized when multiple PUSCH transmissions are available for a UE in one uplink subframe in LTE-A carrier aggregation system, which solves the problem on how to transmit UCI only through one PUSCH when multiple PUSCH transmissions are available.
摘要:
The present invention discloses a method and equipment for UCI transmission. Upon application of the technical solution provided in embodiments of the present invention, UE transmitting UCI through a selected PUSCH is realized when multiple PUSCH transmissions are available for a UE in one uplink subframe in LTE-A carrier aggregation system, which solves the problem on how to transmit UCI only through one PUSCH when multiple PUSCH transmissions are available.
摘要:
The present invention relates to the technical field of wireless communication, particularly relates to a method, system and apparatus for sending and receiving feedback information, to be used for transmitting the feedback information after the aggregation of carriers with different time division duplex (TDD) uplink and downlink configurations. The method of an embodiment of the present invention comprises: determining a dedicated feedback timing relationship by using a user equipment (UE) aggregating carriers with different TDD uplink/downlink configurations; the UE transmitting the feedback information corresponding to the downlink data on the primary carrier according to the determined dedicated feedback timing relationship. Because the feedback information can be transmitted after the aggregation of carriers with different TDD uplink and downlink configurations, thus the transmission efficiency and system performance after the aggregation of carriers with different TDD uplink and downlink configurations are improved.
摘要:
The present invention relates to the technical field of wireless communication, particularly relates to a method, system and apparatus for sending and receiving feedback information, to be used for transmitting the feedback information after the aggregation of carriers with different time division duplex (TDD) uplink and downlink configurations. The method of an embodiment of the present invention comprises: determining a dedicated feedback timing relationship by using a user equipment (UE) aggregating carriers with different TDD uplink/downlink configurations; the UE transmitting the feedback information corresponding to the downlink data on the primary carrier according to the determined dedicated feedback timing relationship. Because the feedback information can be transmitted after the aggregation of carriers with different TDD uplink and downlink configurations, thus the transmission efficiency and system performance after the aggregation of carriers with different TDD uplink and downlink configurations are improved.
摘要:
The present invention discloses a method and apparatus for receiving signals, which comprises the followings: receive signals on at least one receiving branch, which comprises at least two reception units, including one data reception unit and one pilot reception unit at least. Said signal refers to a codeword in a transmission codebook; calculate metric value of each codeword in said transmission codebook according to said received signal; obtain the codeword with maximal metric value among all said codewords and the metric value corresponding to this codeword; if this value exceeds threshold value, Determining the codeword corresponding to said maximal metric value; if this value is less than the threshold value, Determining discontinuously-sent DTX. In the present invention, perform joint demodulation of data symbol and pilot symbol to make the demodulation results more reliable; meanwhile; judge whether it is discontinuous transmission based on joint demodulation of data symbol and pilot symbol.
摘要:
Disclosed are an uplink power control method, power control parameter configuration method and apparatus thereof. The uplink power control method comprises: a user equipment receives data in M downlink sub-frames of N downlink carriers and generates uplink control information, wherein the uplink control information of the M downlink sub-frames is transmitted in one uplink sub-frame; the user equipment determines ΔF_PUCCH(F) and h(n) for calculating the transmit power of a physical uplink control channel (PUCCH) according to whether the number of bits of the uplink control information is larger than a predefined threshold; ΔF_PUCCH(F) represents the power offset of different PUCCH formats relative to the PUCCH format 1a, h(n) represents the power offset corresponding to the number of transmission bits of the PUCCH; the user equipment calculates the PUCCH transmit power according to ΔF_PUCCH(F) and h(n), and sending the uplink control information on the PUCCH using the calculated transmit power. The present is invention can improve the accuracy of power control, thus enhance the transmission performance of the uplink control information.