Systems and methods for beam indication in multi-beam cell

1 . A wireless communication method, comprising:

applying, by a base station, code sequences to repetitions of broadcast information of a plurality of resources of a cell of the base station, each of the code sequences being specific to a corresponding one of the plurality of resources;

transmitting, by the base station to a wireless communication device, the repetitions of the broadcast information with the code sequences applied; and

receiving, by base station from the wireless communication device, measurements for a number of neighboring resources, wherein the measurements are performed by the wireless communication device using the resource-specific code sequence, wherein the number of neighboring resources of the cell to be measured is implicitly indicated by the base station to the wireless communication device via a length of one of the code sequences, the wireless communication device determines the number of neighboring resources based at least on the one of the code sequences.

2 . The wireless communication method of claim 1 , wherein

the repetitions of the broadcast information for each resource of the plurality of resources comprise a number of repetitions of Physical Broadcast Channel (PBCH); and

the PBCH is identical in each of the number of repetitions.

3 . The wireless communication method of claim 1 , wherein each of the plurality of resources is a beam of the cell.

4 . The wireless communication method of claim 1 , wherein the code sequences comprise at least one of Orthogonal Code Cover (OCC) codes or low correlated codes.

5 . The wireless communication method of claim 4 , wherein at least one of:

the OCC codes are generated from a Hadamard matrix;

the OCC codes corresponds to a Zadoff-Chu (ZC) sequence set, wherein the ZC sequence set comprises resource-specific ZC sequence corresponding to the plurality of resources; and the ZC sequence set is determined using a cell-specific ZC root and a resource-specific cyclic shift; or

the OCC codes are generated from a Discrete Fourier Transform (DFT) matrix.

6 . The wireless communication method of claim 1 , wherein each of the code sequence has a length that is no more than a number of repetitions of a Physical Broadcast Channel (PBCH).

7 . The wireless communication method of claim 1 , wherein

applying the code sequence to the repetitions of the broadcast information comprises combining the repetitions of a Physical Broadcast Channel (PBCH) for each resource of the plurality of resources with a corresponding one of the code sequence that is specific to each resource; and

combining the repetitions of the PBCH for each resource of the plurality of resources with the corresponding one of the code sequence comprises one of:

multiplying each repetition of the repetitions of the PBCH for each resource with a corresponding element of the corresponding one of the code sequence in response to determining that a length of the code sequence equals to the repetition number of PBCH; or

applying the code sequence to a predetermined portion of the repetitions of the PBCH in response to determining that the length of the code sequence is less than the repetition number of PBCH, wherein the portion of the repetitions of the PBCH is predetermined.

8 . The wireless communication method of claim 1 , further comprising:

transmitting, by the base station to the wireless communication device, a length of the code sequence, wherein the wireless communication device determines a maximum value of the number of neighboring resources based on the length of the code sequence.

9 . A base station comprising:

at least one processor configured to:

apply code sequences to repetitions of broadcast information of a plurality of resources of a cell of the base station, each of the code sequences being specific to a corresponding one of the plurality of resources;

transmit, via a transmitter to a wireless communication device, the repetitions of the broadcast information with the code sequences applied; and

receive, via a receiver from the wireless communication device, measurements for a number of neighboring resources, wherein the measurements are performed by the wireless communication device using the resource-specific code sequence, wherein the number of neighboring resources of the cell to be measured is implicitly indicated by the base station to the wireless communication device via a length of one of the code sequences, the wireless communication device determines the number of neighboring resources based at least on the one of the code sequences.

10 . The base station of claim 9 , wherein

the repetitions of the broadcast information for each resource of the plurality of resources comprise a number of repetitions of Physical Broadcast Channel (PBCH); and

the PBCH is identical in each repetition of the number of repetitions.

11 . A wireless communication method, comprising:

receiving, by a wireless communication device from a base station, repetitions of broadcast information of a plurality of resources of a cell of the base station with code sequence applied, each of the code sequence being specific to a corresponding one of the plurality of resources;

determining, by the wireless communication device, measurements for each of the plurality of resources distinguished using the code sequences; and

determining, by the wireless communication device, a parameter corresponding to a number of neighboring resources of the cell to be measured, wherein determining the measurements for each of the neighboring resources distinguished using the code sequence comprises determining measurements for the number of neighboring resources using the resource-specific code sequence, wherein the number of neighboring resources of the cell to be measured is implicitly indicated by the base station to the wireless communication device via a length of one of the code sequences, the wireless communication device determines the number of neighboring resources based at least on the one of the code sequences.

12 . The method of claim 11 , wherein

the repetitions of the broadcast information for each resource of the plurality of resources comprise a number of repetitions of Physical Broadcast Channel (PBCH); and

the PBCH is identical in each repetition of the number of repetitions.

13 . The method of claim 11 , wherein each of the plurality of resources is a beam of the cell.

14 . The method of claim 11 , wherein the code sequences comprise at least one of Orthogonal Code Cover (OCC) codes or low correlated codes.

15 . The method of claim 11 , further comprising:

reporting, by the wireless communication device to the base station, the measurements for the number of the neighboring resources.

16 . The method of claim 11 , further comprising determining, by the wireless communication device, a maximum value of the number of the neighboring resources of the cell based on a length of the code sequence received from the base station.

17 . A wireless communication device, comprising:

at least one processor configured to:

receive, via a receiver from a base station, repetitions of broadcast information of a plurality of resources of a cell of the base station with code sequence applied, each of the code sequence being specific to a corresponding one of the plurality of resources;

determine measurements for each of the plurality of resources distinguished using the code sequences; and

determine a parameter corresponding to a number of neighboring resources of the cell to be measured, wherein determining the measurements for each of the neighboring resources distinguished using the code sequence comprises determining measurements for the number of neighboring resources using the resource-specific code sequence, wherein the number of neighboring resources of the cell to be measured is implicitly indicated by the base station to the wireless communication device via a length of one of the code sequences, the wireless communication device determines the number of neighboring resources based at least on the one of the code sequences.

18 . The wireless communication device of claim 17 , wherein

the repetitions of the broadcast information for each resource of the plurality of resources comprise a number of repetitions of Physical Broadcast Channel (PBCH); and

the PBCH is identical in each repetition of the number of repetitions.

19 . The wireless communication device of claim 17 , wherein each of the plurality of resources is a beam of the cell.