Space-time-frequency multiplexing (STFM) schemes for radio frequency (RF) scanning are disclosed in which complementary pairs of sequences (or Golay pairs) are transmitted at different times using multiple frequencies. The transmission and reception of the sequences can occur over multiple transmit (Tx) and/or receive (Rx) radio sectors to scan an entire area for range, azimuth, elevation, and (optionally) velocity of objects therein.

This disclosure describes methods, apparatus, and systems to increase the transmission data rate in wireless networks, for example, by using one or more Multiple Input Multiple Output (MIMO) and/or channel bonding techniques. In one embodiment, the disclosure describes the use of Golay Sequence Sets (GSS) to define guard intervals (GIs) for single carrier (SC) single channel bonding and multiple input multiple output (MIMO) transmission. In various embodiments, the disclosure describes the design of guard interval sequence for 3 types of guard intervals having lengths that can be classified as short, medium, and long. In another embodiment, the disclosure defines the guard interval for single channel transmission channel bonding and for MIMO transmission.

Some demonstrative embodiments include apparatus, system and method of communicating a transmission according to a symbol block structure and Guard Interval (GI) scheme. For example, an apparatus may include logic and circuitry configured to cause a wireless station to generate a plurality of Single Carrier (SC) blocks according to a SC block structure corresponding to a GI type of a plurality of GI types, a SC block of the plurality of SC blocks including a GI followed by a data block, the GI including a Golay sequence having a length based at least on the GI type, a length of the data block is based at least on the GI type; and to transmit a SC transmission over a millimeter Wave (mmWave) frequency band based on the plurality of SC blocks.

This application discloses a signal processing method and an apparatus. The method includes: A transmit device generates a PPDU, and sends the PPDU; and a receive device receives the PPDU, and processes M sequences carried in the PPDU. The PPDU shown in this application includes a first field, the first field is used for carrying M sequences, the M sequences correspond to M space-time streams, one sequence corresponds to one space-time stream, and M is a positive integer. According to the method provided in this application, sequence sending efficiency can be effectively improved.

Disclosed are a method for a station for transmitting and receiving a signal in a wireless local area network (WLAN) system, and an apparatus for the method. More specifically, disclosed are a method for transmitting and receiving a signal and an apparatus for the method, the method, when a station transmits and receives a signal by means of a channel in which three channels have been bonded, generating an enhanced directional multi gigabit (EDMG) short training field (STF) for an orthogonal frequency division multiplexing (OFDM) packet, and transmitting and receiving a signal comprising the generated EDMG STF field.

The present disclosure relates to beam training sequence design methods and apparatus. One example method includes generating, by a transmit end, N.sub.T beam training sequences, where each beam training sequence includes a cyclic prefix and a Golay sequence with a length of 2NL, and the N.sub.T beam training sequences are orthogonal to each other, and sending, by the transmit end, the N.sub.T beam training sequences.

Various embodiments are generally directed to an apparatus, method and other techniques to perform beamforming training in a MIMO environment. Some embodiments may include communicating one or more beamforming refinement packets having training subfields with orthogonal structures such that devices may simultaneously perform beamforming training for each pair of phased array antennas. Embodiments may also include the beamforming refinement packets with channel estimation fields with orthogonal structures.

In an ultra-wideband (UWB) communication system comprising a pair of UWB transceivers, methods for securely performing channel sounding. In a first GCP Sync method, a pre-determined set of Golay Complementary Pairs is added to an 802.15.4a frame. In a second CLASS method, a cyphered low auto-correlation sum set is added to frame. In a third LCSSS method, a low cross-correlation sidelobe sum set is added to the frame. In general, these methods are adapted to transmit a pseudo-randomly generated codeset which may have inherent sidelobe distortions, and then, in the receiver, to compensate for this, and any channel-induced, distortion by selectively modifing the cross-correlation codeset.

The present disclosure relates to a pre-5.sup.th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4.sup.th-Generation (4G) communication system such as Long Term Evolution (LTE). The present invention relates to a method and apparatus for channel estimation in a wireless communication system. A method for operating a transmitter comprises the operations of: transmitting a first reference signal through a first antenna; and transmitting a second reference signal through a second antenna, wherein the first reference signal includes a first Golay sequence, and the second reference signal includes a second Golay sequence.

This disclosure describes the generation and implementation of Golay sequences and Golay Sequence Sets (GSSs) for channel estimation in wireless networks. In one embodiment, this disclosure describes an extension of the Golay sequences Ga and Gb defined in various legacy standards to GSSs. In various embodiments, the disclosed GSSs can include a number of Golay complementary pairs (e.g., Ga and Gb). In one embodiment, the disclosed Golay complementary pairs can meet various predetermined design rules and can be used to define enhanced directional multi-gigabit (EDMG) short training field (STF) and/or channel estimation field (CEF) fields for multiple-input and multiple-output (MIMO) transmission.