CONTROL ARRANGEMENT AND METHOD FOR COMMUNICATING PAGING MESSAGES IN A WIRELESS COMMUNICATION SYSTEM

• US 20090143072A1
• Filed: 10/28/2008
• Published: 06/04/2009
• Est. Priority Date: 10/30/2007
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Malladi, Durga Prasad, Montojo, Juan, Kim, Byoung-Hoon, Sarkar, Sandip
• Granted Patent: US 8,600,413 B2
• Time in Patent Office: Days
• US Class Current: 455/450
• CPC Class Codes: H04W 68/02 Arrangements for increasing efficiency of notification or paging channel
• CPC Class Codes: H04W 68/025 Indirect paging

Abstract

Systems and methods for utilizing paging group IDs and paging indicators are disclosed for PDCCH and PDSCH transmissions to mobile terminals in a mobile communication system. By use of the paging group IDs and paging indicators, various groups of mobile terminals, including subsets of those groups can be paged with reduced decoding requirements. Nesting of the grouping is exploited and packing of the PDCCH frame to accomplish efficient use is described.

Claims

1. A method for transmitting paging messages in a wireless communication system, the method comprising:

time-hashing at least one user equipment (UE) to a particular subframe, the particular subframe defining a paging occasion for a paging group associated with the at least one UE;

associating a paging group ID for the paging group with a physical downlink control channel (PDCCH);

allocating in the PDCCH, resources associated with a physical downlink shared channel (PDSCH); and

transmitting, in the PDSCH, a paging message for the at least one UE during the paging occasion.

2. The method of claim 1, wherein associating the paging group ID with the PDCCH, further comprises CRC masking the PDCCH with the paging group ID.

3. The method of claim 1, further comprising transmitting on the PDCCH a paging indicator (PI) associated with the paging group associated with the at least one UE.

4. The method of claim 3, wherein the PI is identified by the time hashing and the CRC masking.

5. The method of claim 3, further comprising transmitting on a separate PDCCH the paging indicator (PI) associated with the paging group associated with the at least one UE.

6. The method of claim 2, wherein the PDCCH is the same as a conventional PDCCH with an exception of a terminating ID being replaced with a specialized paging group ID.

7. An apparatus operable in wireless communication system, the apparatus comprising:

means for time-hashing at least one user equipment (UE) to a particular subframe, the particular subframe defining a paging occasion for a paging group associated with the at least one UE;

means for associating a paging group ID for the paging group with a physical downlink control channel (PDCCH);

means for allocating, in the PDCCH, resources associated with a physical downlink shared channel (PDSCH); and

means for transmitting, in the PDSCH, a paging message for the at least one UE during the paging occasion.

8. The apparatus of claim 7, further comprising means for transmitting on the PDCCH a paging indicator (PI) associated with the paging group associated with the at least one UE.

9. The apparatus of claim 8, further comprising means for transmitting on a separate PDCCH the paging indicator (PI) associated with the paging group associated with the at least one UE.

10. The apparatus of claim 7, wherein the PDDCH is the same as a conventional PDDCH with an exception of a terminating ID being replaced with a specialized paging group ID.

11. A machine-readable medium comprising instructions which, when executed by a machine, cause the machine to perform operations including:

time-hashing at least one user equipment (UE) to a particular subframe, the particular subframe defining a paging occasion for a paging group associated with the at least one UE;

associating a paging group ID for the paging group with a physical downlink control channel (PDCCH);

allocating, in the PDCCH, resources associated with a physical downlink shared channel (PDSCH); and

transmitting, in the PDSCH, a paging message for the at least one UE during the paging occasion.

12. The machine-readable medium of claim 11, further comprising instructions for transmitting on the PDCCH a paging indicator (PI) associated with the paging group associated with the at least one UE.

13. The machine-readable medium of claim 12, further comprising instructions for transmitting on a separate PDCCH the paging indicator (PI) associated with the paging group associated with the at least one UE.

14. The machine-readable medium of claim 11, wherein the PDDCH is the same as a conventional PDDCH with an exception of a terminating ID being replaced with a specialized paging group ID.

15. An apparatus operable in a wireless communication system, the apparatus comprising:

a processor, configured for time-hashing at least one user equipment (UE) to a particular subframe, the particular subframe defining a paging occasion for a paging group associated with the at least one UE;

associating a paging group ID for the paging group with a physical downlink control channel (PDCCH);

allocating, in the PDCCH, resources associated with a physical downlink shared channel (PDSCH); and

transmitting, in the PDSCH, a paging message for the at least one UE during the paging occasion; and

a memory coupled to the processor for storing data.

16. The apparatus of claim 15, wherein the processor is further configured for transmitting on the PDCCH a paging indicator (PI) associated with the paging group associated with the at least one UE.

17. A method for transmitting paging messages in wireless communication system, the method comprising:

grouping user equipments (UEs) in paging groups according to different time instances with a particular DRX cycle;

grouping paging messages associated a particular paging group associated with multiples UEs into a single physical downlink shared channel (PDSCH) transmission; and

transmitting the single PDSCH during a corresponding time instance associated with a paging group, wherein the UEs of the particular paging group decodes the correct PDSCH based on a common paging group ID in a PDCCH transmitted to the UEs.

18. The method according to claim 17, wherein the PDCCH includes a paging indicator (PI) associated with a subset of the UEs having the common paging group ID.

19. The method of claim 18, further comprising transmitting on a separate PDCCH the paging indicator (PI).

20. The method of claim 17, wherein the PDDCH is the same as a conventional PDDCH with an exception of a terminating ID being replaced with a specialized paging group ID.