A timing detection device includes a main reference code generation module, an auxiliary reference code generation module, a first correlation processing module, a second correlation processing module, and a subtraction module. The main reference code generation module generates a main reference code consisting of the same code for synchronization included in a received signal. Using a portion of the same code as the code for synchronization, the auxiliary reference code generation module generates an auxiliary reference code consisting of a code configuration different from the main reference code and without generating a main lobe during correlation processing. The first correlation processing module correlates the received signal with the main reference code and outputs a first correlation result. The second correlation processing module correlates the received signal with the auxiliary reference code and outputs a second correlation result. The subtraction module subtracts the first correlation result from the second correlation result.

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.

A base station may generate a low-power (LP) wake-up signal (LP-WUS) that includes on-off keying (OOK) symbols with complementary sequences overlaying at least one of the OOK symbols. The complementary sequences may include an indication of a user equipment (UE) to transition from a power saving mode to an active mode. The base station may communicate the LP-WUS to the UE, which may cause the UE to transition from the power saving mode to an active mode. The complementary sequence may include, or be generated creating, one or more Golay complementary sequences. These and many other features and examples are described herein.