摘要:
The present disclosure provides a method for allocating physical hybrid ARQ indicator channels, which is used for sending indication information corresponding to multiple uplink sub-frames in the same downlink sub-frame in a TDD system. The method includes: in the TDD system, through an index of a physical resource block where uplink data resides as well as an index of an uplink sub-frame where the uplink data resides, determining an index of a physical hybrid ARQ indicator channel group where a physical hybrid ARQ indicator channel in an downlink sub-frame resides and an intra-group index of the physical hybrid ARQ indicator channel in the physical hybrid ARQ indicator channel group according to an indexing rule, and further determining an index of the physical hybrid ARQ indicator channel by using the index of the physical hybrid ARQ indicator channel group and the intra-group index. According to implicit mapping, the method of the present disclosure implements the allocation of the physical hybrid ARQ indicator channels over which the downlink indication messages corresponding to each uplink sub-frame are transmitted, thereby being capable of overcoming the problem potentially present in existing technologies that multiple indication messages reside on the same physical hybrid ARQ indicator channel.
摘要:
The disclosure provides a physical uplink control channel (PUCCH) power control method. A user equipment (UE) determines a power control parameter nHARQ for a PUCCH format 3 transmission and performs power control on the PUCCH format 3 based on the nHARQ. The disclosure also provides a PUCCH power control apparatus. According to the disclosure, for a TDD system, the power control parameter nHARQ for the PUCCH format 3 transmission may be determined, which efficiently solves the problem regarding power control when feedback is performed in PUCCH format 3.
摘要:
The present invention discloses an information multiplexing method, comprising: coding multiple feedback information according to number of the feedback information and a linear block code sequence, and truncating corresponding coded information according to a target length of the feedback information coded (S302); dividing the truncated coded information into multiple feedback information logic units sequentially, and multiplexing together the multiple feedback information logic units, multiple rank indication information logic units, multiple control information logic units and data information logic units are; wherein the control information logic units, the multiple rank indication information logic units, the data information logic units, and the feedback information logic units contain the same bit number (S304). Transmission of more than two ACK/NACKs is achieved by the present invention and transmission performance of the system is improved.
摘要:
A method for transmitting feedback information and a user equipment are disclosed in the present document, wherein, one method includes: a User Equipment (UE) performing time domain extension on feedback information within one subframe; and mapping respectively data which go through the time domain extension and demodulation reference signals corresponding to the data which go through the time domain extension to multiple uplink Single Carrier-Frequency Division Multiple Access (SC-FDMA) symbols within the subframe, and transmitting the data which go through the time domain extension and the demodulation reference signals corresponding to the data which go through the time domain extension in the same frequency domain position in a way of time division multiplexing; wherein, each uplink SC-FDMA symbol occupies n successive physical resource blocks in the frequency domain, and n is a positive integer.
摘要:
The disclosure discloses a method and terminal for transmitting uplink control information. The method includes: coding the uplink control information required to be transmitted and data information corresponding to one or two transport blocks respectively, obtaining an encoded sequence according to a target length, and forming a corresponding coded modulation sequence from the encoded sequence according to a modulation mode (401); interleaving the obtained coded modulation sequence, and transmitting the interleaved coded modulation sequence on a layer corresponding to a Physical Uplink Shared Channel (PUSCH) (402). By adopting the method and terminal according to the disclosure the transmission of uplink control information with greater bits on the PUSCH is realized. The disclosure also provides a method for determining a number of code symbols required in each layer when transmitting uplink control information on the PUSCH, thus the purpose of determining a number of code symbols required in each layer when transmitting uplink control information on the PUSCH is realized.
摘要:
A transmitting method of a signal on a random access channel in a wireless communication system, comprises the steps that: a terminal transmits a preamble on the random access channel with a set time length ahead of the end position of an uplink pilot time slot, and the length of the preamble is the length of two symbols without a cyclic prefix. Another transmitting method of a signal on a random access channel in a wireless communication system, comprises the steps that: a terminal transmits a cyclic prefix and a preamble on the random access channel with a set time length ahead of the end position of an uplink pilot time slot, and the length of the preamble is the length of two symbols without a cyclic prefix. The methods can avoid the interference of the preamble to the data of the uplink subframe, and can improve the coverage area of the random access channel and the work efficiency of the time division duplex system.
摘要:
The present invention provides a method and system for processing an uplink control signaling feedback. The method comprises: a base station configuring a feedback mode of an uplink control signaling for user equipment, wherein the feedback mode is used for instructing the user equipment a manner in which to transmit the uplink control signaling on a physical uplink control channel (PUCCH) and/or a physical uplink shared channel (PUSCH); and the user equipment sending the uplink control signaling according to the feedback mode. By way of the present invention, it is ensured that the base station can correctly demodulate the uplink control signaling.
摘要:
The present invention discloses a method and an apparatus for sending rank indication (RI) information, and a method and an apparatus for receiving RI information, wherein the method for sending the RI information includes: carrying the RI information on a physical uplink control channel (PUCCH) for transmitting scheduling request (SR) information when the RI information and the SR information are sent within a same subframe, and sending the RI information and the SR information by using the PUCCH for transmitting SR information. According to the present invention, the problem that the orthogonality of codes between PUCCHs is destroyed due to that the RI information and the SR information are sent within a same subframe is solved, the overall system performance thereby can be guaranteed.
摘要:
A method for sending a physical broadcast channel in the TDD system is disclosed, which is: a signal of a physical broadcast channel is not sent in a pilot position, and the signal of the physical broadcast channel is sent on 4 OFDM symbols of the first subframe of one radio frame. Through the present invention, the extension requirement of the physical broadcast channel capacity in the TDD can be met, and the system complexity is reduced due to the normal cyclic prefix and extended prefix using the same sending method.
摘要:
The present invention discloses a method for mapping physical random access channels, which comprises the following steps: the PRACHs in the same time domain location are mapped from low frequency to high frequency, or from high frequency to low frequency in usable frequency resource, wherein one PRACH occupies 6 resource blocks, and the frequency bands occupied by two adjacent PRACHs in the frequency domain do not overlap; or the PRACHs in the same time domain location are mapped from two sides to the middle in usable frequency resource, wherein one PRACH occupies 6 resource blocks, and the frequency bands occupied by two adjacent PRACHs in the frequency domain do not overlap. The present invention enables uniformly distributing the PRACHs which require to be processed by the same base station in the time domain, and decreasing the inter-cell interference of the second type PRACH to the utmost extent at the same time.