Cell-specific interleaving, rate-matching, and/or resource element mapping

1. A method of wireless communications at a network entity, comprising:

for each of a plurality of cells in a network:

scrambling each of a plurality of physical broadcast channel (PBCH) payload codewords based on a scrambling sequence;

rate-matching each scrambled codeword based on a cell identifier; and

communicating, in the identified cell, with a user equipment in accordance with the rate-matched scrambled codewords.

2. The method of claim 1 , wherein the rate-matching is adjusted as a function of the cell identifier such that a scrambling sequence of each codeword is uniquely mapped to one or more PBCH resource elements.

3. The method of claim 1 , wherein the rate-matching based on the cell identifier results in an inter-cell interference randomization between the network entity and at least one other network entity.

4. The method of claim 3 , wherein the inter-cell interference randomization corresponds to an adjustment of a first physical resource element mapping of a physical broadcast channel (PBCH) payload of the network entity from a second physical resource element mapping of a PBCH payload of at least one other network entity.

5. The method of claim 1 , wherein performing the rate-matching on each codeword based on the cell identifier includes:

determining a matrix having a size based on the size of each codeword and a number of rate-matched bits; and

adjusting the rate-matched bits based on the cell identifier.

6. A method of wireless communication at a user equipment (UE), comprising:

receiving a message from a network entity on a physical broadcast channel (PBCH) of a cell of the network entity;

identifying a cell identifier associated with the network entity based on a primary synchronization signal or secondary synchronization signal detection of the PBCH; and

performing de-rate-matching on the message based on the cell identifier, the de-rate-matching is associated with a rate-matching that is adjusted as a function of the cell identifier such that a scrambling sequence including a non-zero PBCH payload of the message is uniquely mapped to one or more resource elements of the PBCH.

7. A network entity for wireless communications, comprising:

a memory; and

at least one processor in communication with the memory, wherein the at least one processor is configured to:

scramble at least one physical broadcast channel (PBCH) codeword based on a scrambling sequence;

rate-matching each scrambled codeword based on a cell identifier; and

communicate, in the identified cell, with a user equipment in accordance with performing the rate-matching on the scrambled rate-matched at least one codeword.

8. The network entity of claim 7 , wherein the rate-matching is adjusted as a function of the cell identifier such that a scrambling sequence of each codeword is uniquely mapped to one or more PBCH resource elements.

9. The network entity of claim 7 , wherein the rate-matching based on the cell identifier results in an inter-cell interference randomization between the network entity and at least one other network entity.

10. The network entity of claim 9 , wherein the inter-cell interference randomization corresponds to an adjustment of a first physical resource element mapping of a physical broadcast channel (PBCH) payload of the network entity from a second physical resource element mapping of a PBCH payload of at least one other network entity.

11. The network entity of claim 7 , wherein perform the rate-matching on each codeword based on the cell identifier, the at least one processor is further configured to:

determine a matrix having a size based on the size of each codeword and a number of rate-matched bits; and

adjust the rate-matched bits based on the cell identifier.

12. A user equipment (UE) for wireless communications, comprising:

a memory; and

at least one processor in communication with the memory, wherein the at least one processor is configured to:

receive a message from a network entity on a physical broadcast channel (PBCH) of a cell of the network entity;

identify a cell identifier associated with a cell of the network entity based on a primary synchronization signal or secondary synchronization signal detection; and

perform at least a de-rate-matching on the message based on the cell identifier, the de-rate-matching is associated with a rate-matching that is adjusted as a function of the cell identifier such that a scrambling sequence including a non-zero broadcast communication payload of the at least one message is uniquely mapped to one or more resource elements of the PBCH.

13. A non-transitory computer-readable medium storing computer executable code that when executed by at least one processor of a network entity of a wireless network causes the network entity to, for each of a plurality of cells in the network: scramble each of a plurality of physical broadcast channel (PBCH) payload codewords based on a scrambling sequence; rate-match each scrambled codeword based on a cell identifier; and communicate, in the identified cell, with a user equipment in accordance with the rate-matched scrambled codewords.

14. The non-transitory computer-readable medium of claim 13 , wherein the rate-matching is adjusted as a function of the cell identifier such that a scrambling sequence of each codeword is uniquely mapped to one or more PBCH resource elements.

15. The non-transitory computer-readable medium of claim 13 , wherein the rate-matching based on the cell identifier results in an inter-cell interference randomization between the network entity and at least one other network entity.

16. The non-transitory computer-readable medium of claim 15 , wherein the inter-cell interference randomization corresponds to an adjustment of a first physical resource element mapping of a physical broadcast channel (PBCH) payload of the network entity from a second physical resource element mapping of a PBCH payload of at least one other network entity.

17. The non-transitory computer-readable medium of claim 13 , wherein performing the rate-matching on each codeword based on the cell identifier includes: determining a matrix having a size based on the size of each codeword and a number of rate-matched bits; and adjusting the rate-matched bits based on the cell identifier.

18. A non-transitory computer-readable medium storing computer executable code, that when executed by at least one processor of a user equipment (UE) a wireless network causes the UE to: receiving a message from a network entity on a physical broadcast channel (PBCH) of a cell of the network entity; identifying a cell identifier associated with the network entity based on a primary synchronization signal or secondary synchronization signal detection of the PBCH; and performing de-rate-matching on the message based on the cell identifier, the de-rate-matching is associated with a rate-matching that is adjusted as a function of the cell identifier such that a scrambling sequence including a non-zero PBCH payload of the message is uniquely mapped to one or more resource elements of the PBCH.

19. A network entity for wireless communications, comprising:

means for scrambling, for each of a plurality of cells in a network, each of a plurality of physical broadcast channel (PBCH) payload codewords based on a scrambling sequence;

means for rate-matching each scrambled codeword based on a cell identifier; and

means for communicating, in the identified cell, with a user equipment in accordance with the rate-matched scrambled codewords.

20. The network entity of claim 19 , wherein the rate-matching is adjusted as a function of the cell identifier such that a scrambling sequence of each codeword is uniquely mapped to one or more PBCH resource elements.

21. The network entity of claim 19 , wherein the rate-matching based on the cell identifier results in an inter-cell interference randomization between the network entity and at least one other network entity.

22. The network entity of claim 21 , wherein the inter-cell interference randomization corresponds to an adjustment of a first physical resource element mapping of a physical broadcast channel (PBCH) payload of the network entity from a second physical resource element mapping of a PBCH payload of at least one other network entity.

23. The network entity of claim 19 , wherein means performing the rate-matching on each codeword based on the cell identifier includes:

means determining a matrix having a size based on the size of each codeword and a number of rate-matched bits; and

means adjusting the rate-matched bits based on the cell identifier.

24. A user equipment (UE) of a wireless network, comprising:

means receiving a message from a network entity on a physical broadcast channel (PBCH) of a cell of the network entity;

means identifying a cell identifier associated with the network entity based on a primary synchronization signal or secondary synchronization signal detection of the PBCH; and

means performing de-rate-matching on the message based on the cell identifier, the de-rate-matching is associated with a rate-matching that is adjusted as a function of the cell identifier such that a scrambling sequence including a non-zero PBCH payload of the message is uniquely mapped to one or more resource elements of the PBCH.