IP Library › Granted Patent US 9,629,166

Granted Patent B2

US 9,629,166 · App. 13/890,129 · Granted Apr 18, 2017

Coexistence between legacy carrier types and new carrier types

Inventors: Yongbin Wei (San Diego, CA); Hao Xu (San Diego, CA); Durga Prasad Malladi (San Diego, CA); Tingfang Ji (San Diego, CA); Wanshi Chen (San Diego, CA); Tao Luo (San Diego, CA); Peter Gaal (San Diego, CA); Jelena M. Damnjanovic (San Diego, CA); Aleksandar Damnjanovic (San Diego, CA); Naga Bhushan (San Diego, CA)

Assignee: QUALCOMM INCORPORATED

H04W72/048 H04L5/00 H04W76/026 H04L5/001 H04L5/0048 H04L5/0053 H04L5/0091 H04W48/16 H04W72/0453

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Quick Facts

Patent No.: US 9,629,166
App. No.: 13/890,129
Granted: Apr 18, 2017
Kind: B2

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Abstract

A method of wireless communication occurs in a frequency band having a first set of resources associated with a first carrier type and a second set of resources associated with a second carrier type. In one configuration, the first carrier type is a new carrier type and the second carrier type is a legacy carrier type. Legacy UEs may only receive signals from the second carrier type. However, new UEs may receive signals from both the first carrier type and the second carrier type. Therefore, to provide backward compatibility while supporting new UEs, an eNodeB may signal support of the first carrier type to a new UE while maintaining signaling with legacy UEs. Additionally, the eNodeB may restrict operations of a UE to the first set of resources or second set of resources.

Claims (102)

1. A method of wireless communication, comprising:

transmitting resources on a carrier, the resources including a first set of resources associated with a first carrier type and a second set of resources associated with a second carrier type;

indicating that the carrier is either the first carrier type or the second carrier type; and

restricting operations of a user equipment (UE) to the first set of resources or the second set of resources.

2. The method of claim 1 , in which the first carrier type comprises a legacy carrier type and the second carrier type comprises a new carrier type.

3. The method of claim 1 , in which the carrier is a frequency band for communications.

4. The method of claim 1 , further comprising advertising a bandwidth that is different than an actual bandwidth being used.

5. The method of claim 1 , in which the operations comprise paging occasions, and the first set of resources are orthogonal from the second set of resources.

6. The method of claim 5 , further comprising defining paging occasions based at least in part on network loading.

7. The method of claim 5 , further comprising defining at least one first subframe for monitoring paging occasions for a first carrier type UE and at least one second subframe for monitoring paging occasions for a second carrier type UE.

8. The method of claim 7 , in which the second carrier type UE uses additional subframes for paging monitoring in comparison to the first carrier type UE.

9. The method of claim 5 , further comprising defining a new hashing function to map to a new paging location.

10. The method of claim 1 , in which the indicating comprises transmitting a reserved bit in a master information block (MIB) or a system information block (SIB) to indicate the carrier as the second carrier type.

11. The method of claim 1 , in which the operations comprise monitoring the first set of resources or the second set of resources.

12. The method of claim 1 , in which the resources comprise subframes or sub-bands.

13. A method of wireless communication, comprising:

receiving resources on a carrier, the resources including a first set of resources associated with a first carrier type and a second set of resources associated with a second carrier type;

determining whether the carrier is the first carrier type or the second carrier type; and

receiving a restriction of operations to the first set of resources or the second set of resources.

14. The method of claim 13 , in which the first carrier type comprises a legacy carrier type and the second carrier type comprises a new carrier type.

15. The method of claim 13 , in which the carrier is a frequency band for communications.

16. The method of claim 13 , in which the operations comprise paging occasions, and the first set of resources are orthogonal from the second set of resources.

17. The method of claim 13 , in which the determining is based at least in part on a reserved bit in a master information block (MIB) or a system information block (SIB) to indicate the carrier is the second carrier type.

18. The method of claim 13 , in which the operations comprise monitoring the first set of resources or the second set of resources.

19. The method of claim 13 , in which the resources comprise subframes or sub-bands.

20. An apparatus for wireless communications, comprising:

a memory; and

at least one processor coupled to the memory, the at least one processor being configured:

to transmit resources on a carrier, the resources including a first set of resources associated with a first carrier type and a second set of resources associated with a second carrier type;

to indicate that the carrier is either the first carrier type or the second carrier type; and

to restrict operations of a user equipment (UE) to the first set of resources or the second set of resources.

21. The apparatus of claim 20 , in which the first carrier type comprises a legacy carrier type and the second carrier type comprises a new carrier type.

22. The apparatus of claim 20 , in which the carrier is a frequency band for communications.

23. The apparatus of claim 20 , in which the at least one processor is further configured to advertise a bandwidth that is different than an actual bandwidth being used.

24. The apparatus of claim 20 , in which the operations comprise paging occasions, and the first set of resources are orthogonal from the second set of resources.

25. The apparatus of claim 24 , in which the at least one processor is further configured to define paging occasions based at least in part on network loading.

26. The apparatus of claim 24 , in which the at least one processor is further configured to define at least one first subframe for monitoring paging occasions for a first carrier type UE and at least one second subframe for monitoring paging occasions for a second carrier type UE.

27. The apparatus of claim 26 , in which the second carrier type UE uses additional subframes for paging monitoring in comparison to the first carrier type UE.

28. The apparatus of claim 24 , in which the at least one processor is further configured to define a new hashing function to map to a new paging location.

29. The apparatus of claim 20 , in which the at least one processor is further configured to indicate by transmitting a reserved bit in a master information block (MIB) or a system information block (SIB) to indicate the carrier as the second carrier type.

30. The apparatus of claim 20 , in which the operations comprise monitoring the first set of resources or the second set of resources.

31. The apparatus of claim 20 , in which the resources comprise subframes or sub-bands.

32. An apparatus for wireless communications, comprising:

a memory; and

at least one processor coupled to the memory, the at least one processor being configured:

to receive resources on a carrier, the resources including a first set of resources associated with a first carrier type and a second set of resources associated with a second carrier type;

to determine whether the carrier is the first carrier type or the second carrier type; and

to receive a restriction of operations to the first set of resources or the second set of resources.

33. The apparatus of claim 32 , in which the first carrier type comprises a legacy carrier type and the second carrier type comprises a new carrier type.

34. The apparatus of claim 32 , in which the carrier is a frequency band for communications.

35. The apparatus of claim 32 , in which the operations comprise paging occasions, and the first set of resources are orthogonal from the second set of resources.

36. The apparatus of claim 32 , in which the at least one processor is configured to determine based at least in part on a reserved bit in a master information block (MIB) or a system information block (SIB) to indicate the carrier is the second carrier type.

37. The apparatus of claim 32 , in which the operations comprise monitoring the first set of resources or the second set of resources.

38. The apparatus of claim 32 , in which the resources comprise subframes or sub-bands.

39. An apparatus for wireless communications, comprising:

means for transmitting resources on a carrier, the resources including a first set of resources associated with a first carrier type and a second set of resources associated with a second carrier type;

means for indicating that the carrier is either the first carrier type or the second carrier type; and

means for restricting operations of a user equipment (UE) to the first set of resources or the second set of resources.

40. An apparatus for wireless communications, comprising:

means for receiving resources on a carrier, the resources including a first set of resources associated with a first carrier type and a second set of resources associated with a second carrier type;

means for determining whether the carrier is the first carrier type or the second carrier type; and

means for receiving a restriction of operations to the first set of resources or the second set of resources.

41. A non-transitory computer-readable medium having program code recorded thereon, the program code comprising:

program code to transmit resources on a carrier, the resources including a first set of resources associated with a first carrier type and a second set of resources associated with a second carrier type;

program code to indicate that the carrier is either the first carrier type or the second carrier type; and

program code to restrict operations of a user equipment (UE) to the first set of resources or the second set of resources.

42. A non-transitory computer-readable medium having program code recorded thereon, the program code comprising:

program code to receive resources on a carrier, the resources including a first set of resources associated with a first carrier type and a second set of resources associated with a second carrier type;

program code to determine whether the carrier is the first carrier type or the second carrier type; and

program code to receive a restriction of operations to the first set of resources or the second set of resources.

43. The method of claim 1 , in which at least one of:

a timing configuration of the first carrier type is different from a timing configuration of the second carrier type;