APPARATUS AND METHOD FOR OPERATING AN IDLE MODE IN A WIRELESS COMMUNICATION SYSTEM

• US 20080311933A1
• Filed: 06/16/2008
• Published: 12/18/2008
• Est. Priority Date: 06/15/2007
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Kim, Young-Hak, Lim, Ae-Ri
• Granted Patent: US 8,660,589 B2
• Time in Patent Office: Days
• US Class Current: 455/458
• CPC Class Codes: H04W 68/02 Arrangements for increasing efficiency of notification or paging channel
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

An apparatus and method for operating an idle mode in a wireless communication system. The method includes transmitting, by a Mobile Station (MS) to a Base Station (BS), a RaNGing REQuest (RNG-REQ) message for changing a paging cycle while operating the idle mode; transmitting, by the BS to the MS, a RaNGing ReSPonse (RNG-RSP) message including paging information to be changed; and operating a new idle mode by the MS and the BS according to the paging information transmitted and received while operating the idle mode.

Claims

1. A method of operating an idle mode of a Mobile Station (MS) in a wireless communication, the method comprising:

transmitting, by the MS to a Base Station (BS), a RaNGing REQuest (RNG-REQ) message for changing a paging cycle while operating the idle mode;

transmitting, by the BS to the MS, a RaNGing ReSPonse (RNG-RSP) message including paging information to be changed; and

operating a new idle mode, by the MS and the BS, according to the paging information transmitted and received while operating the idle mode.

2. The method of claim 1, wherein transmitting the RNG-REQ message comprises transmitting a paging cycle request Type Length Value (TLV), and the RNG-REQ message is used to request the BS to change the paging cycle.

3. The method of claim 1, wherein the RNG-REQ message is used to request the BS to change the paging cycle by using a ranging purpose indication TLV among TLV items included in the RNG-REQ message.

4. The method of claim 1, wherein the paging information includes at least one of the paging cycle, a paging offset, and a paging group IDentifier (ID).

5. The method of claim 1, further comprising:

determining, by the MS, whether the paging cycle needs to be changed while operating the idle mode; and

if the paging cycle needs to be changed, transmitting, by the MS, the RNG-REQ message.

6. The method of claim 1, further comprising:

determining, by the BS, if there is a need to change the paging cycle of the MS that is operating the idle mode;

transmitting, by the BS, a MOBile PAGing ADVertisement (MOB_PAG_ADV) message for requesting location update to the MS; and

transmitting the RNG-REQ message by the MS to the BS in response to the MOB_PAG_ADV message.

7. The method of claim 5, wherein a need to change the paging cycle is determined considering at least one of an aspect of whether traffic is generated for a predetermined time duration and a resource management aspect.

8. The method of claim 1, wherein the paging cycle to be changed includes a paging cycle determined and requested by the MS or a paging cycle determined by the BS.

9. A method of operating a Mobile Station (MS) in an idle mode in a wireless communication system, the method comprising:

transmitting, to a Base Station (BS), a RaNGing REQuest (RNG-REQ) message for changing a paging cycle while operating the idle mode;

receiving, from the BS, a RaNGing ReSPonse (RNG-RSP) message including paging information to be changed; and

operating a new idle mode according to the paging information received while operating the idle mode.

10. The method of claim 9, wherein transmitting the RNG-REQ message comprises transmitting a paging cycle request Type Length Value (TLV), and the RNG-REQ message is used to request the BS to change the paging cycle.

11. The method of claim 9, wherein the RNG-REQ message is used to request the BS to change the paging cycle by using a ranging purpose indication TLV among TLV items included in the RNG-REQ message.

12. The method of claim 9, wherein the paging information includes at least one of the paging cycle, a paging offset, and a paging group IDentifier (ID).

13. The method of claim 9, further comprising:

determining whether the paging cycle needs to be changed while operating the idle mode; and

if the paging cycle needs to be changed, transmitting the RNG-REQ message by the MS.

14. The method of claim 13, wherein a need to change the paging cycle is determined considering at least one of an aspect of whether traffic is generated for a predetermined time duration and a resource management aspect.

15. The method of claim 9, further comprising:

receiving, from the BS, a MOBile PAGing ADVertisement (MOB_PAG_ADV) message for requesting location update; and

transmitting the RNG-REQ message in response to the MOB_PAG_ADV message.

16. The method of claim 9, wherein the paging cycle to be changed includes a paging cycle determined and requested by the MS or a paging cycle determined by the BS.

17. A method of operating a Base Station (BS) that operates an idle mode of a Mobile Station (MS) in a wireless communication system, the method comprising:

receiving a RaNGing REQuest (RNG-REQ) message for changing a paging cycle from the MS that is operating the idle mode;

transmitting, to the MS, a RaNGing ReSPonse (RNG-RSP) message including paging information indicating a paging cycle to be changed; and

operating the idle mode of the MS according to the paging information.

18. The method of claim 17, wherein receiving the RNG-REQ message comprises receiving a paging cycle request Type Length Value (TLV) and the RNG-REQ message is used to request the BS to change the paging cycle.

19. The method of claim 17, wherein the RNG-REQ message is used to request the BS to change the paging cycle by using a ranging purpose indication TLV among TLV items included in the RNG-REQ message.

20. The method of claim 17, wherein the paging information includes at least one of the paging cycle, a paging offset, and a paging group IDentifier (ID).

21. The method of claim 17, further comprising:

determining if there is a need to change the paging information of the MS that is operating the idle mode within a same paging zone; and

transmitting, to the MS, the RNG-RSP message including the paging information in order to change the paging information.

22. The method of claim 17, further comprising:

transmitting a MOBile PAGing ADVertisement (MOB_PAG_ADV) message for enabling the MS to transmit the RNG-REQ message in order to change the paging cycle of the MS that is operating the idle mode; and

receiving the RNG-REQ message from the MS.

23. The method of claim 22, further comprising:

determining if there is a need to change the paging cycle of the MS that is operating the idle mode; and

transmitting the MOB_PAG_ADV message to the MS.

24. The method of claim 23, wherein the need to change the paging cycle is determined considering at least one of an aspect of whether traffic is generated for a predetermined time duration and a resource management aspect.

25. A Mobile Station (MS) apparatus for operating an idle mode in a wireless communication system, the apparatus comprising:

a controller for evaluating a condition for changing a paging cycle while operating the idle mode, for controlling that a RaNGing REQuest (RNG-REQ) message is to be transmitted to a Base Station (BS) according to the condition, and for operating the idle mode by evaluating paging information included in a RaNGing ReSPonse (RNG-RSP) message received from the BS; and

a communication module for transmitting the RNG-REQ message to the BS under the control of the controller, for receiving the RNG-RSP message from the BS, and for providing the RNG-RSP message to the controller.

26. The apparatus of claim 25, wherein the RNG-REQ message comprises a paging cycle request Type Length Value (TLV), and the RNG-REQ message is used to request the BS to change the paging cycle.

27. The apparatus of claim 25, wherein the RNG-REQ message is used to request the BS to change the paging cycle by using a ranging purpose indication TLV among TLV items included in the RNG-REQ message.

28. The apparatus of claim 25, wherein the paging information comprises at least one of the paging cycle, a paging offset, and a paging group IDentifier (ID).

29. The apparatus of claim 25, wherein the controller determines if there is a need to change the paging cycle according to the condition for changing the paging cycle while operating the idle mode, and if the paging cycle needs to be changed, controls the RNG-REQ message for requesting the change of the paging cycle to be transmitted to the BS.

30. The apparatus of claim 29, wherein the need to change the paging cycle is determined considering at least one of an aspect of whether traffic is generated for a predetermined time duration and a resource management aspect.

31. A Base Station (BS) apparatus for operating an idle mode of a Mobile Station (MS) in a wireless communication system, the apparatus comprising:

a message processor for providing a network apparatus with a RaNGing REQuest (RNG-REQ) message received from the MS, for receiving control information from the network apparatus, and for preparing a RaNGing ReSPonse (RNG-RSP) message or a MOBile PAGing ADVertisement (MOB_PAG_ADV) message to be delivered to the MS; and

a communication module for transmitting and receiving messages to and from the MS.

32. The apparatus of claim 31, wherein the RNG-REQ message comprises a paging cycle request Type Length Value (TLV), and the RNG-REQ message is used to request the BS to change the paging cycle.

33. The apparatus of claim 31, wherein the RNG-REQ message is used to request the BS to change the paging cycle by using a ranging purpose indication TLV among TLV items included in the RNG-REQ message.

34. A network apparatus for operating an idle mode of a Mobile Station (MS) in a wireless communication system, the apparatus comprising:

a controller for determining to change paging information of the MS, which is operating the idle mode, according to a condition for changing a paging cycle or according to a request of the MS, and for operating the idle mode of the MS; and

a network communication module for delivering information for transmitting a MOBile PAGing ADVertisement (MOB_PAG_ADV) message to a Base Station (BS) in a paging group.

35. The apparatus of claim 34, wherein the controller determines if there is a need to change the paging cycle of the MS that is operating the idle mode and controls the MOB_PAG_ADV message, which enables transmission of a RaNGing REQuest (RNG-REQ) message, to be transmitted to the MS.

36. The apparatus of claim 35, wherein the need to change the paging cycle is determined considering at least one of an aspect of whether traffic is generated for a predetermined time duration and a resource management aspect.