A method at a receiver, the method employing the IEEE802.11ay standard and comprising: receiving a wireless packet including a received short training field, STF, and a received channel estimation field, CEF; determining whether the received STF matches an assigned STF assigned for a target link for the receiver, by performing cross-correlation between the STF and at least one component sequence from a set of at least four different component sequences, the set of component sequences being a set of pairs of Golay sequences, and comparing an output of the cross-correlation with an expected output, wherein when the received STF matches the assigned STF, the wireless packet is determined to be a target packet for the target link for the receiver; performing a channel estimation by performing a cross-correlation of the received CEF with an assigned CEF assigned for the target link for the receiver, the assigned CEF being assigned from a set of two or more CEFs, each CEF in the set of CEFs being formed from a pair of complementary Golay sequences of the set of at least four different component sequences, the CEFs within the set of CEFs being pairwise zero-correlation zone, ZCZ, sequences, such that each pair of CEFs has negligible cross-correlation output over a ZCZ and each CEF has a delta function auto-correlation over the ZCZ; and demodulating or ignoring a remaining portion of the wireless packet, based on whether the wireless packet is a target packet; and characterized in that the set of at least four different component sequences includes sequence Gc 128 and sequence Gd 128 wherein: the Sequence Gc 128, from left to right, up to down, has binary values: +1 -1 -1 +1 -1 +1 -1 +1 -1 -1 -1 -1 +1 +1 -1 -1 +1 -1 -1 +1 +1 -1 +1 -1 -1 -1 -1 -1 -1 -1 +1 +1 -1 +1 +1 -1 +1 -1 +1 -1 +1 +1 +1 +1 -1 -1 +1 +1 +1 -1 -1 +1 +1 -1 +1 -1 -1 -1 -1 -1 -1 -1 +1 +1 -1 +1 +1 -1 +1 -1 +1 -1 +1 +1 +1 +1 -1 -1 +1 +1 -1 +1 +1 -1 -1 +1 -1 +1 +1 +1 +1 +1 +1 +1 -1 - 1 -1 +1 +1 -1 +1 -1 +1 -1 +1 +1 +1 +1 -1 -1 +1 +1 +1 -1 -1 +1 +1 -1 +1 -1 -1 -1 -1 -1 -1 -1 +1 +1 the Sequence Gd 128 from left to right, up to down, has binary values: +1 -1 -1 +1 -1 +1 -1 +1 -1 -1 -1 -1 +1 +1 -1 -1 +1 -1 -1 +1 +1 -1 +1 -1 -1 -1 -1 -1 -1 -1 +1 +1 -1 +1 +1 -1 +1 -1 +1 -1 +1 +1 +1 +1 -1 -1 +1 +1 +1 -1 -1 +1 +1 -1 +1 -1 -1 -1 -1 -1 -1 -1 +1 +1 +1 -1 -1 +1 -1 +1 -1 +1 -1 -1 -1 -1 +1 +1 -1 -1 +1 -1 -1 +1 +1 -1 +1 -1 -1 -1 -1 -1 -1 -1 +1 +1 +1 -1 -1 +1 -1 +1 -1 +1 -1 -1 -1 -1 +1 +1 -1 -1 -1 +1 +1 -1 -1 +1 -1 +1 +1 +1 +1 +1 +1 +1 -1 -1 and includes sequence Ga 128 and sequence Gb 128, wherein: the Sequence Ga 128, from left to right, up to down, has binary values: +1 +1 -1 -1 -1 -1 -1 -1 -1 +1 -1 +1 +1 -1-1 +1 +1 +1 -1 -1 +1 +1 +1 +1 -1 +1 -1 +1 -1 +1 +1 -1 -1 -1 +1 +1 +1 +1 +1 +1 +1 -1 +1 -1 -1 +1 +1 -1 +1 +1 -1 -1 +1 +1 +1 +1 -1 +1 -1 +1 -1 +1 +1 -1 +1 +1 -1 -1 -1 -1 -1 -1 -1 +1 -1 +1 +1 -1 -1 +1 +1 +1 -1 -1 +1 +1 +1 +1 -1 +1 -1 +1 -1 +1 +1 -1 +1 +1 -1 -1 -1 -1 -1 -1 -1 +1 -1 +1 +1 -1 -1 +1 -1 -1 +1 +1 -1 -1 -1 -1 +1 -1 +1 -1 +1 -1 -1 +1 the Sequence Gb 128 from left to right, up to down, has binary values: -1 -1 +1 +1 +1 +1 +1 +1 +1 -1 +1 -1 -1 +1 +1 -1 -1 -1 +1 +1 -1 -1 -1 -1 +1 -1 +1 -1 +1 -1 -1 +1 +1 +1 -1 -1 -1 -1 -1 -1 -1 +1 -1 +1 +1 -1 -1 +1 -1 -1 +1 +1 -1 -1 -1 -1 +1 -1 +1 -1 +1 -1 -1 +1 +1 +1 -1 -1 -1 -1 -1 -1 -1 +1 -1 +1 +1 -1 -1 +1 +1 +1 -1 -1 +1 +1 +1 +1 -1 +1 -1 +1 -1 +1 +1 -1 +1 +1 -1 -1 -1 -1 -1 -1 -1 +1 -1 +1 +1 -1 -1 +1 -1 -1 +1 +1 -1 -1 -1 -1 +1 -1 +1 -1 +1 -1 -1 +1 receiving a wireless packet including a received short training field, STF, and a received channel estimation field, CEF; determining whether the received STF matches an assigned STF assigned for a target link for the receiver, by performing cross-correlation between the STF and at least one component sequence from a set of at least four different component sequences, the set of component sequences being a set of pairs of Golay sequences, and comparing an output of the cross-correlation with an expected output, wherein when the received STF matches the assigned STF, the wireless packet is determined to be a target packet for the target link for the receiver; performing a channel estimation by performing a cross-correlation of the received CEF with an assigned CEF assigned for the target link for the receiver, the assigned CEF being assigned from a set of two or more CEFs, each CEF in the set of CEFs being formed from a pair of complementary Golay sequences of the set of at least four different component sequences, the CEFs within the set of CEFs being pairwise zero-correlation zone, ZCZ, sequences, such that each pair of CEFs has negligible cross-correlation output over a ZCZ and each CEF has a delta function auto-correlation over the ZCZ; and demodulating or ignoring a remaining portion of the wireless packet, based on whether the wireless packet is a target packet; and