Method for communication and an apparatus thereof

1. A method, comprising:

sending, by a base station (BS), first downlink control information (DCI) with a format 1_0 and in a user equipment (UE) specific search space with cyclic redundancy check (CRC) scrambled by a UE identifier (UE ID) of a UE, the first DCI scheduling communication of a first physical downlink shared channel (PDSCH) for the UE; and

in response to the first DCI with the format 1_0 and in the UE specific search space, scrambling, by the BS, first data to be transmitted on the first PDSCH using a first sequence that is generated by the BS based on a configurable parameter that is sent to the UE, with the first sequence initialized by the BS with the configurable parameter, and sending, by the BS, the scrambled first data on the first PDSCH,

wherein initializing the first sequence with the configurable parameter comprises obtaining, by the BS, the first sequence using an initialized sequence that is determined, by the BS, based on the configurable parameter represented by n ID wherein n ID ∈{0,1, . . . , 1023} is to be configured by higher-layer signaling to the UE, wherein the initialized sequence is determined based on the configurable parameter represented by N D , and wherein the initialized sequence satisfies c init =n RNTI ·2 15 +q·2 14 +n ID , c init is the initialized sequence, and n RNTI corresponds to a network temporary identifier (RNTI) associated with a PDSCH transmission.

2. The method of claim 1 , further comprising:

sending, by the BS, second DCI in a common search space with CRC scrambled by the UE ID of the UE, the second DCI scheduling communication of a second PDSCH for the UE; and

in response to the second DCI being in the common search space, scrambling, by the BS, second data to be transmitted on the second PDSCH using a second sequence that is generated by the BS based on a cell ID, with the second sequence initialized with the cell ID, and transmitting, by the BS, the scrambled second data on the second PDSCH.

3. The method of claim 2 , wherein the second DCI uses the format 1_0.

4. The method of claim 1 , wherein initializing the first sequence with the configurable parameter comprises:

generating, by the BS, the initialized sequence of the first sequence based on the configurable parameter.

5. The method of claim 1 , wherein the UE ID comprises a cell-radio network temporary identifier (C-RNTI), a modulation and coding scheme-C-RNTI (MCS-C-RNTI) or a configured scheduling-RNTI (CS-RNTI).

6. The method of claim 1 , wherein sending the first DCI comprises sending the first DCI after a radio resource control (RRC) configuration procedure is performed.

7. The method of claim 1 , further comprising:

sending, by the BS, the first PDSCH scheduled by the first DCI.

8. A method, comprising:

sending, by a base station (BS), first downlink control information (DCI) with a format 0_0 and in a user equipment (UE) specific search space with cyclic redundancy check (CRC) scrambled by a UE identifier (UE ID) of a UE, the first DCI scheduling communication of a first physical uplink shared channel (PUSCH) for the UE; and

in response to the first DCI with the format 0_0 and in the UE specific search space, receiving, by the BS, the first PUSCH scrambled by a first sequence which is initialized with a configurable parameter sent to the UE,

wherein the first sequence is based on an initialized sequence that is determined based on the configurable parameter represented by n ID , wherein n ID ∈{0,1, . . . , 1023} is to be configured by higher-layer signaling to the UE and wherein the initialized sequence satisfies c init =n RNTI ·2 15 +n ID wherein cant is the initialized sequence, and n RNTI corresponds to a network temporary identifier (RNTI) associated with a PUSCH transmission.

9. The method according to claim 8 , further comprising:

sending, by the BS, second DCI in a common search space with CRC scrambled by the UE ID of the UE, the second DCI scheduling communication of a second PUSCH for the UE; and

in response to the second DCI being in the common search space, generating, by the BS, a second sequence by initializing, by the BS, the second sequence with a cell ID, and descrambling, by the BS, the second PUSCH using the second sequence.

10. The method of claim 9 , wherein the second DCI uses the format 0_0.

11. The method of claim 8 , further comprising:

sending, by the BS, the configurable parameter to the UE.

12. The method of claim 8 , wherein the UE ID comprises a cell-radio network temporary identifier (C-RNTI), a modulation and coding scheme-C-RNTI (MCS-C-RNTI) or a configured scheduling-RNTI (CS-RNTI).

13. The method according to claim 8 , further comprising:

generating, by the BS, the first sequence by initializing the first sequence with the configurable parameter sent to the UE, and

descrambling, by the BS, the first PUSCH using the first sequence.

14. The method of claim 13 , wherein initializing the first sequence with the configurable parameter comprises:

generating, by the BS, the initialized sequence of the first sequence based on the configurable parameter.

15. The method of claim 13 , wherein initializing the first sequence with the configurable parameter comprises:

obtaining, by the BS, the first sequence using the initialized sequence.

16. The method of claim 8 , wherein sending the first DCI comprises sending the first DCI after a radio resource control (RRC) configuration procedure is performed.

17. The method of claim 8 , further comprising:

receiving, by the BS, the first PUSCH scheduled by the first DCI.

18. An apparatus, comprising:

one or more processors, configured to couple with a memory storage, wherein the memory storage is configured to store instructions, which when executed, cause the apparatus to perform:

sending first downlink control information (DCI) with a format 1_0 and in a user equipment (UE) specific search space with cyclic redundancy check (CRC) scrambled by a UE identifier (UE ID) of a UE, the first DCI scheduling communication of a first physical downlink shared channel (PDSCH) for the UE; and

in response to the first DCI with the format 1_0 and in the UE specific search space, scrambling first data to be transmitted on the first PDSCH using a first sequence that is generated based on a configurable parameter that is sent to the UE, with the first sequence initialized with the configurable parameter, and sending the scrambled first data on the first PDSCH,

wherein initializing the first sequence with the configurable parameter comprises obtaining the first sequence using an initialized sequence that is determined based on the configurable parameter represented by n ID wherein n ID ∈{0,1, . . . , 1023} is to be configured by higher-layer signaling to the UE, wherein the initialized sequence is determined based on the configurable parameter represented by n ID , and wherein the initialized sequence satisfies c init =n RNTI ·2 15 +q·2 14 +n ID , c init is the initialized sequence, and n RNTI corresponds to a network temporary identifier (RNTI) associated with a PDSCH transmission.

19. The apparatus of claim 18 , wherein the instructions, when executed, cause the apparatus further to perform:

sending second DCI in a common search space with CRC scrambled by the UE ID of the UE, the second DCI scheduling communication of a second PDSCH for the UE; and

in response to the second DCI being in the common search space, scrambling second data to be transmitted on the second PDSCH using a second sequence that is generated based on a cell ID, with the second sequence initialized with the cell ID, and transmitting the scrambled second data on the second PDSCH.

20. The apparatus of claim 19 , wherein the second DCI uses the format 1_0.

21. The apparatus of claim 18 , wherein initializing the first sequence with the configurable parameter comprises:

generating the initialized sequence of the first sequence based on the configurable parameter.

22. The apparatus of claim 18 , wherein the UE ID comprises a cell-radio network temporary identifier (C-RNTI), a modulation and coding scheme-C-RNTI (MCS-C-RNTI) or a configured scheduling-RNTI (CS-RNTI).

23. The apparatus of claim 18 , wherein sending the first DCI comprises sending the first DCI after a radio resource control (RRC) configuration procedure is performed.

24. The apparatus of claim 18 , wherein the instructions, when executed, cause the apparatus further to perform:

sending the first PDSCH scheduled by the first DCI.

25. An apparatus, comprising:

one or more processors, configured to couple with a memory storage, wherein the memory storage is configured to store instructions, which when executed, cause the apparatus to perform:

sending first downlink control information (DCI) with a format 0_0 and in a user equipment (UE) specific search space with cyclic redundancy check (CRC) scrambled by a UE identifier (UE ID) of a UE, the first DCI scheduling communication of a first physical uplink shared channel (PUSCH) for the UE; and

in response to the first DCI with the format 0_0 and in the UE specific search space, receiving the first PUSCH scrambled by a first sequence which is initialized with a configurable parameter sent to the UE,

wherein the first sequence is based on an initialized sequence that is determined based on the configurable parameter represented by n ID , wherein n ID ∈{0,1, . . . , 1023} is to be configured by higher-layer signaling to the UE and wherein the initialized sequence satisfies c init =n RNTI ·2 15 +n ID , wherein c init is the initialized sequence, and n RNTI corresponds to a network temporary identifier (RNTI) associated with a PUSCH transmission.

26. The apparatus according to claim 25 , wherein the instructions, when executed, cause the apparatus further to perform:

sending second DCI in a common search space with CRC scrambled by the UE ID of the UE, the second DCI scheduling communication of a second PUSCH for the UE; and

in response to the second DCI being in the common search space, generating a second sequence by initializing the second sequence with a cell ID, and descrambling the second PUSCH using the second sequence.

27. The apparatus of claim 26 , wherein the second DCI uses the format 0_0.

28. The apparatus of claim 25 , wherein the instructions, when executed, cause the apparatus further to perform:

sending the configurable parameter to the UE.

29. The apparatus of claim 25 , wherein the UE ID comprises a cell-radio network temporary identifier (C-RNTI), a modulation and coding scheme-C-RNTI (MCS-C-RNTI) or a configured scheduling-RNTI (CS-RNTI).

30. The apparatus according to claim 25 , wherein the instructions, when executed, cause the apparatus further to perform:

generating the first sequence by initializing the first sequence with the configurable parameter sent to the UE; and

descrambling the first PUSCH using the first sequence.

31. The apparatus of claim 30 , wherein initializing the first sequence with the configurable parameter comprises:

generating the initialized sequence of the first sequence based on the configurable parameter.

32. The apparatus of claim 30 , wherein initializing the first sequence with the configurable parameter comprises:

obtaining the first sequence using the initialized sequence.

33. The apparatus of claim 25 , wherein sending the first DCI comprises sending the first DCI after a radio resource control (RRC) configuration procedure is performed.

34. The apparatus of claim 25 , wherein the instructions, when executed, cause the apparatus further to perform:

receiving the first PUSCH scheduled by the first DCI.