Patent classifications
H04L1/0079
TRANSMITTING APPARATUS FOR TRANSMITTING AN OFDM SIGNAL GENERATED BY PERFORMING IFFT PROCESSING ON A PREAMBLE AND ONE OR MORE SUBFRAMES INTO WHICH PILOT SIGNALS ARE INSERTED
A transmitting method includes: configuring a frame using a plurality of orthogonal frequency-division multiplexing (OFDM) symbols, by allocating a plurality of transmission data to a plurality of areas; and transmitting the frame. The plurality of areas are each identified by at least one time resource among resources and at least one frequency resource among frequency resources. The frame includes a first period in which a preamble is transmitted, and a second period in which the plurality of transmission data are transmitted by at least one of time division and frequency division. The second period includes a first area, and the first area includes a data symbol generated from first transmission data, a data symbol generated from second transmission data and subsequent to the data symbol generated from the first transmission data, and a dummy symbol subsequent to the data symbol generated from the second transmission data.
Method and apparatus for determining a dynamic HARQ-ACK codebook
The present disclosure is related to a method and apparatus for determining a dynamic hybrid automatic repeat request-acknowledge (HARQ-ACK) codebook. A method for determining a dynamic HARQ-ACK codebook for includes receiving a plurality of downlink (DL) transmissions, wherein each DL transmission has an associated first signal indicating whether the DL transmission is a last transmission of the plurality of DL transmissions. The method further includes transmitting a HARQ-ACK codebook corresponding to the plurality of DL transmissions, wherein, based on the first signal, HARQ-ACK feedback for the last transmission of the plurality of DL transmissions is arranged at the end of the HARQ-ACK codebook. The present disclosure reduces signaling overhead for a dynamic HARQ-ACK codebook and avoids misunderstanding between a base unit and a remote unit when determining the dynamic HARQ-ACK codebook.
Control channel signaling using a common signaling field for transport format, redundancy version, and new data indicator
A radio terminal in a radio communication system receives a physical downlink control signal comprising a control field and a new data indicator (NDI) field and determines that a value of the NDI field is one of a first value and a second value. A physical uplink shared channel signal is generated according to both a specific transport format and a specific redundancy version. The control field is used to determine the specific transport format when the NDI field is determined to be the first value, and the control field is used to determine the specific redundancy version when the NDI field is determined to be the second value.
Method and apparatus for generating a channel state information report adapted to support a partial omission
Generating a channel state informal ion (CSI) feedback report is provided. A set of reference signals is received (1302). A plurality of entries that are included in the CSI feedback report are computed (1304), where the entries of the CSI feedback report include at leas: a set of coefficients (1306). Each coefficient is associated with at least one or more of a spatial domain basis index, frequency domain basis index, and a layer index (1308). The plurality of entries of the CSI feedback report are arranged (1310) in an order known to both the user equipment and the network entity. The plurality of entries of the CSI feedback report are prioritized using predefined permutations of the indices (1314).
Buffer status reporting method, terminal, and computer storage medium
An embodiment of the present invention discloses a buffer status reporting method, where the method including: triggering, by a terminal, reporting of a padding buffer status report (padding BSR); and determining, by the terminal, a reported BSR format according to a size of padding bits, a size of a first type of BSR format plus its media access control (MAC) subheader, and a quantity of logical channel groups currently having to-be-transmitted data being buffered, where a quantity of logical channel groups corresponding to the BSR format is greater than or equal to 1, and less than or equal to a maximum quantity of logical channel groups currently having to-be-transmitted data being buffered.
Uplink control signaling in cellular telecommunication system
A method, apparatus, and computer program for controlling allocation of control message fields in uplink transmission in a cellular telecommunication system are presented. Uplink control message fields are allocated to the resources of a physical uplink shared traffic channel according to an uplink transmission scheme selected for a user terminal. The control message fields are allocated so that transmission performance of the control messages is optimized for the selected uplink transmission scheme.
BROADCAST SIGNAL TRANSMISSION APPARATUS, BROADCAST SIGNAL RECEPTION APPARATUS, BROADCAST SIGNAL TRANSMISSION METHOD, AND BROADCAST SIGNAL RECEPTION METHOD
The present invention proposes a method of transmitting a broadcast signal. The method of transmitting a broadcast signal according to the present invention proposes a system capable of supporting future broadcast services in an environment supporting future hybrid broadcast using terrestrial broadcast networks and the Internet. In addition, an efficient signaling method capable of covering terrestrial broadcast networks and the Internet in an environment supporting future hybrid broadcast is proposed.
UPLINK HYBRID AUTOMATIC REPEAT REQUEST ACKNOWLEDGEMENT (HARQ-ACK) FEEDBACK FOR MACHINE TYPE COMMUNICATION (MTC)
Systems and methods for efficient signaling Hybrid Automatic Repeat Request Acknowledgement (HARQ-ACK) for an uplink data transmission are disclosed. In some embodiments, a method of signaling HARQ-ACK feedback for an uplink data transmission sent from a wireless device to a radio network node comprises obtaining HARQ-ACK feedback for the uplink data transmission, encoding the obtained HARQ-ACK feedback on to an unused bit combination of a field in a downlink control channel, and transmitting the downlink control channel to the wireless device. Embodiments of the present disclosure enable wireless device power saving using positive HARQ-ACK feedback without increasing the static downlink control signaling overhead and without reducing coverage for downlink control information.
Memory misalignment correction
A system and module for, and a method of correcting, memory misalignment in a phase shift keying receiver is disclosed. Embodiments include a system having: an analog front end for receiving a demodulated signal having a preamble portion, and for generating a digital register input signal including a received preamble portion; a finite state machine for selecting a memory address of the demodulated signal based on the received preamble portion; a preamble memory for storing all possible preambles contained within the demodulated signal and for supplying a selected preamble memory output corresponding to the selected memory address; and a memory alignment module configured to compare phase information of symbols of the preamble portion and preamble phase information of symbols of the selected preamble memory output. This system checks that the preamble portion of the register input signal aligns with the selected preamble memory output and makes corrections when necessary.
METHOD FOR SYMBOL COMPENSATION AND RECEIVER
The present disclosure provides a method for symbol compensation. The method comprises, for a symbol consisting of a first portion and a second portion: estimating a length of the first portion; calculating an average power of the first portion and an average power of the second portion based on the length of the first portion; determining a relative scaling factor by which the average power of the first portion is scaled relative to that of the second portion; and compensating for the first portion based on the relative scaling factor.