A method for use in a wireless receiver (110; 120), the method comprising: receiving a first signal block on a first beam, the first signal block comprising a first set of bits encoded with a first channel code and representing a non-time-varying component and a second set of bits encoded with a second channel code and representing a first time-varying component, wherein the first time varying-component of the second set of bits is associated with the first beam, and wherein the non-time-varying component comprises system information; receiving a second signal block on a second beam, the second signal block comprising the first set of bits encoded with the first channel code and representing the non-time-varying component and a third set of bits encoded with the second channel code and representing a second time-varying component different than the first time-varying component, wherein the second time varying-component of the third set of bits is associated with the second beam, and wherein the first and second time-varying components each comprise a time index; descrambling the first signal block and the second signal block according to a time difference between the second set of time-varying bits and the third set of time-varying bits by computing the codeword of the second channel code that corresponds to the hypothesized difference in the time index in the adjacent first and second signal blocks and using the codeword to flip the signs in values of log-likelihood ratios, LLRs, from the adjacent first and second signal blocks before adding them together into a combined LLR; combining LLRs of the first descrambled signal block with LLRs of the second descrambled signal block to combine the received LLRs from the adjacent first and second signal blocks; and decoding the first set of coded bits using the combined LLRs to decode both the time index and the system information. receiving a first signal block on a first beam, the first signal block comprising a first set of bits encoded with a first channel code and representing a non-time-varying component and a second set of bits encoded with a second channel code and representing a first time-varying component, wherein the first time varying-component of the second set of bits is associated with the first beam, and wherein the non-time-varying component comprises system information; receiving a second signal block on a second beam, the second signal block comprising the first set of bits encoded with the first channel code and representing the non-time-varying component and a third set of bits encoded with the second channel code and representing a second time-varying component different than the first time-varying component, wherein the second time varying-component of the third set of bits is associated with the second beam, and wherein the first and second time-varying components each comprise a time index; descrambling the first signal block and the second signal block according to a time difference between the second set of time-varying bits and the third set of time-varying bits by computing the codeword of the second channel code that corresponds to the hypothesized difference in the time index in the adjacent first and second signal blocks and using the codeword to flip the signs in values of log-likelihood ratios, LLRs, from the adjacent first and second signal blocks before adding them together into a combined LLR; combining LLRs of the first descrambled signal block with LLRs of the second descrambled signal block to combine the received LLRs from the adjacent first and second signal blocks; and decoding the first set of coded bits using the combined LLRs to decode both the time index and the system information.