摘要:
A method, an eNodeB, and a system for timing adjustment to a component carrier are provided. The method includes the following steps: receiving an instruction signaling, in which the instruction signaling is used for instructing a downlink component carrier used as a timing reference for an uplink component carrier; and adjusting the uplink component carrier by using the downlink component carrier as timing reference time. Through the embodiments of the present disclosure, the downlink component carrier used as the timing adjustment reference for the uplink component carrier is specified in the sent instruction signaling. The timing reference time used by the terminal during the TA adjustment of the uplink component carrier may be clarified and the TA adjustment of the uplink component carrier may be accurately confirmed.
摘要:
According to methods and apparatuses for performing error detection and error correction for a synchronization frame in embodiments of the present invention, a transmitter acquires a transmitter check sequence according to contents of a synchronization frame sequence; and a receiver acquires a receiver information sequence related to the check sequence. When performing error detection, the receiver acquires a receiver check sequence according to the receiver information sequence and a generator polynomial and determines whether the synchronization frame transmission is valid according to the receiver check sequence and the transmitter check sequence; when performing error correction, the receiver acquires a syndrome sequence according to the receiver information sequence, acquires an error pattern according to the syndrome sequence and acquires a result of error correction according to the error pattern and the receiver information sequence.
摘要:
A method, a device, and a system for sending reference signals (RSs) are provided, which are capable of least modifying an original system and controlling the system overhead of the RSs. The method includes: grouping expanded transmitting antennas, wherein each group includes two transmitting antenna ports; and in two adjacent RS periods 2T, the RSs sent through the two transmitting antenna ports of each group are [a*s1, b*s1*ejw] respectively in a first period T and [a*s2, −b*s2*ejw] respectively in a second period T. The method, the device, and the system for sending RSs are applicable in design of transmitting antennas of an LTE Advanced system.
摘要:
A method, a device, and a system for sending reference signals (RSs) are provided, which are capable of least modifying an original system and controlling the system overhead of the RSs. The method includes: grouping expanded transmitting antennas, wherein each group includes two transmitting antenna ports; and in two adjacent RS periods 2T, the RSs sent through the two transmitting antenna ports of each group are [a*s1, b*s1*ejw] respectively in a first period T and [a*s2, −b*s2*ejw] respectively in a second period T. The method, the device, and the system for sending RSs are applicable in design of transmitting antennas of an LTE Advanced system.
摘要:
According to methods and apparatuses for performing error detection and error correction for a synchronization frame in embodiments of the present invention, a transmitter acquires a transmitter check sequence according to contents of a synchronization frame sequence; and a receiver acquires a receiver information sequence related to the check sequence. When performing error detection, the receiver acquires a receiver check sequence according to the receiver information sequence and a generator polynomial and determines whether the synchronization frame transmission is valid according to the receiver check sequence and the transmitter check sequence; when performing error correction, the receiver acquires a syndrome sequence according to the receiver information sequence, acquires an error pattern according to the syndrome sequence and acquires a result of error correction according to the error pattern and the receiver information sequence.
摘要:
Embodiments of the present invention disclose a method, an apparatus and a system for downlink channel transmission. The method for downlink channel transmission includes: sending PDCCH information, where original information of the information includes a first part of the information and a second part of the information; the second part of the information includes downlink control information DCI content information, and the first part of the information includes indication information for indicating a related parameter of the DCI content information in the second part of the information; after receiving the PDCCH, obtaining, by a receiving end, the first part of the information and verifies it, if correct, obtaining the related parameter of the DCI content information in the second part of the information according to the indication information, and performing convolutional decoding for specific DCI content information in the second part of the information according to the related parameter.
摘要:
Embodiments of the present disclosure disclose a system, apparatuses and methods for determining the right to speak. In the embodiments, each Secondary Protective Device (SPD) selects a Request to Send (RTS) sequence from a preconfigured RTS sequence set and sends the selected RTS sequence to a Primary Protective Device (PPD). The PPD chooses one RTS sequence from the RTS sequence sent by the SPDs and sends the chosen RTS sequence to all the SPDs and then each SPD determines whether the right to speak is obtained according to the RTS sequence from the PPD. The system, apparatuses and methods provided by the embodiments of the present disclosure ensure that the RTS sequences sent to the PPD by the SPDs are almost always different. Therefore the efficiency of determining the right to speak is greatly improved and the satisfaction of users is improved effectively.
摘要:
The present invention discloses a method for LDPC code erasure decoding, including: generating a first code word through setting a value as a value in Galois field having two elements GF(2) at each of erasure locations in a code word; generating a second code word through setting the value as an inverse value of the value in GF(2) at each of the erasure locations in the code word; conducting a MLD error correcting operation for the first code word and the second code word to get a first result of hard decoding and a second result of hard decoding respectively; determining a result of erasure decoding according to the first result of hard decoding and the second result of hard decoding. Thus the present invention allows LDPC code erasure decoding aimed at the BEC, and increases the error correcting capability for BED signal transmitted data.
摘要:
Embodiments of the present disclosure disclose a system, apparatuses and methods for determining the right to speak. In the embodiments, each Secondary Protective Device (SPD) selects a Request to Send (RTS) sequence from a preconfigured RTS sequence set and sends the selected RTS sequence to a Primary Protective Device (PPD). The PPD chooses one RTS sequence from the RTS sequence sent by the SPDs and sends the chosen RTS sequence to all the SPDs and then each SPD determines whether the right to speak is obtained according to the RTS sequence from the PPD. The system, apparatuses and methods provided by the embodiments of the present disclosure ensure that the RTS sequences sent to the PPD by the SPDs are almost always different. Therefore the efficiency of determining the right to speak is greatly improved and the satisfaction of users is improved effectively.
摘要:
The present disclosure relates to the field of electronic device accessories, and in particular, to a random quick-charging apparatus and method. The random quick-charging apparatus and method of the present disclosure do not require a fixed quick-charging interface, an electronic device may be randomly inserted into any interface to achieve a quick-charging function, and thus high convenience in use is achieved.