Link level support of wireless data

• US 6,708,040 B1
• Filed: 06/19/2000
• Issued: 03/16/2004
• Est. Priority Date: 06/19/2000
• Status: Expired due to Term

• Current Assignee: WSOU Investments, LLC (WSOU Holdings, LLC)
• Original Assignee: Lucent Technologies, Inc. (Nokia Corporation)
• Inventors: Uppala, Sathyadev Venkata, Li, Junyi, Laroia, Rajiv
• Primary Examiner(s): MOORE, JAMES K
• Assistant Examiner(s): Lei, Tsuleun R.
• Application Number:
  US09/596,817
• Time in Patent Office: 1,366 Days
• Field of Search: 455/509, 455/515, 455/434, 455/435, 455/450, 455/455, 455/458, 340/7.48, 340/7.22, 340/7.21, 340/7.59
• US Class Current: 455/515
• CPC Class Codes: H04W 68/00 User notification, e.g. alerting and paging, for incoming communication, change of service or the like
• CPC Class Codes: H04W 74/0866 using a dedicated channel for access

Abstract

In a wireless communication system, mobile unit and base station access request and page transmissions are addressed by employing an efficient unified approach for the transmission and detection of both access requests from a mobile unit and pages from a base station. To this end, a mobile unit monitors for access requests and monitors a prescribed resource to detect if a page has been received. Upon detection of an access request, a corresponding request message is generated and transmitting substantially immediately to a base station, thereby minimizing latency in the access process. Concurrently, a base station monitors to determine if a page indication has been received and monitors a prescribed resource to determine if an access request message has been received. In this process, the processing of request messages takes precedence over the processing of pages. Upon detecting a received request message a request response message is generated and transmitted substantially immediately to the mobile unit, thereby also minimizing latency in the access process.

Claims

1. A method for use in a wireless communications mobile unit comprising the steps of:

monitoring for an access request;

monitoring an assigned resource for received page messages;

determining whether an access request and/or a received page message has been detected;

if an access request is detected, wherein processing of said access requests takes precedence over processing of said received pages, transmitting a request message to a base station on a resource dedicated to this mobile unit;

monitoring for received request response messages;

if a request response message is received, controllably transmitting an acknowledgment indicating reception of the request response message; and

if a page message is detected, transmitting an acknowledgment indicating reception of the page message,

whereby latency is minimized in gaining access by said mobile unit from said base station.

2. The method as defined in claim 1 wherein said step of monitoring for page messages and said step of monitoring for an access request are performed substantially simultaneously.

3. The method as defined in claim 1 further including a step of performing action indicated in said received page message.

4. The method as defined in claim 1 wherein said step of transmitting said request message includes a step of generating and transmitting said request message substantially immediately.

5. The method as defined in claim 1 wherein said step of controllably transmitting includes a step of determining the correctness of a received request response message.

6. The method as defined in claim 5 wherein said step of determining the correctness includes a step of determining if said received request response message is consistent with said transmitted request message and a step of transmitting said acknowledgment when said received request response message is consistent with said transmitted request message.

7. The method as defined in claim 6 further including a step of performing action indicated in a received request response message.

8. The invention as defined in claim 1 wherein said resource is a segment.

9. The method as defined in claim 8 wherein said step of monitoring for page messages includes a step of monitoring assignment segments assigned to this mobile unit.

10. The method as defined in claim 9 wherein said request response messages are received in assignment segments and said step of monitoring for request response messages includes a step of monitoring all of received assignment segments.

11. The method as defined in claim 10 wherein individual ones of said received assignment segments include a request response messages and a page message.

12. A method for use in a wireless communications base station comprising the steps of:

monitoring for pages;

monitoring for request messages;

determining whether a request message and/or a page has been detected;

if a page is detected, transmitting a page message in an assigned resource;

determining if an acknowledgment has been received indicating that the page message was received by a mobile unit;

if a request message has been received, substantially immediately transmitting a request response message in a prescribed resource, wherein processing of said received request messages takes precedence over processing of said pages; and

determining if an acknowledgment has been received indicating that the request response message was received by a mobile unit,

whereby latency in providing a mobile unit with access is minimized.

13. The method as defined in claim 12 wherein said step of monitoring for pages and said step of monitoring for request messages are performed substantially simultaneously.

14. The method as defined in claim 12 further including a step of performing action indicated in said received request message.

15. The method as defined in claim 12 further including a step of performing action indicated in said page message.

16. The method as defined in claim 12 wherein said resource is a segment.

17. The method as defined in claim 16 wherein said step of transmitting said request response message includes a step of transmitting said request response message in an assignment segment.

18. The method as defined in claim 12 wherein said transmitted messages include message indicators indicating a class of message and a type of message.

19. The method as defined in claim 18 wherein said request response message includes one of said indicators including an indication that the received message was a request and an indication of the message class.

20. The method as defined in claim 18 wherein said page message includes one of said indicators including an indication that the message being transmitted is a page and an indication of the message class.

21. A method for use in a wireless communication system comprising the steps of:

in a mobile unit,

monitoring for an access request,

monitoring an assigned resource for page messages,

determining whether an access request and/or a page message has been detected;

if an access request is detected, transmitting a request message on a resource dedicated to this mobile unit,

monitoring for received request response messages,

if a request response message is received, controllably transmitting an acknowledgment indicating reception of the request response message, and

if a page message is detected, transmitting an acknowledgment indicating reception of the page message; and

in a base station,

monitoring for pages,

monitoring for request messages,

determining whether a request message and/or a page has been detected,

if a page is detected, transmitting a page message in an assigned resource,

determining if an acknowledgment has been received indicating that the page message was received by a mobile unit,

if a request message has been received, substantially immediately transmitting a request response message in a prescribed resource, and

determining if an acknowledgment has been received indicating that the request response message was received by a mobile unit;

wherein in said mobile unit, processing of said requests takes precedence over processing of said received page messages, and in said base station, processing of said received request messages takes precedence over processing of said pages

whereby latency is minimized in providing access to said mobile unit.

22. The method as defined in claim 21 wherein said step of monitoring for page messages and said step of monitoring for an access request in said mobile unit are performed substantially simultaneously.

23. Tee method as defined in claim 21 wherein said step of monitoring for pages and said step of monitoring for request messages in said base station are performed substantially simultaneously.

24. The method as defined in claim 21 wherein said step of transmitting said request message includes the steps of generating and transmitting substantially immediately said request message.

25. The method as defined in claim 21 wherein said step of controllably transmitting includes a step of determining the correctness of a received request response message.

26. The method as defined in claim 21 wherein said resource is a segment.

27. The method as defined in claim 26 wherein said step of monitoring for page messages includes a step of monitoring assignment segments assigned to this mobile unit.

28. The method as defined in claim 26 wherein said step of transmitting said request response message includes a step of transmitting said request response message in an assignment segment.

29. The method as defined in claim 26 wherein said request response messages are received in assignment segments and said step of monitoring for request response messages includes a step of monitoring all of received assignment segments.

30. The method as defined in claim 29 wherein individual ones of said received assignment segments include a request response messages and a page message.

31. The method as defined in claim 26 wherein in said base station said step of transmitting said request response message includes a step of transmitting said request response message in assignment.

32. The method as defined in claim 21 wherein in said base station said transmitted messages include message indicators indicating a class of message and a type of message.

33. The method as defined in claim 32 wherein said request response message includes one of said indicators including an indication that the received message was a request and an indication of the message class.

34. The method as defined in claim 32 wherein said page message includes one of said indicators including an indication that the message being transmitted is a page and an indication of the message class.

35. Apparatus for use in a wireless communications mobile unit comprising:

a controllable receiver;

a controllable transmitter;

a controller;

said controllable receiver including a monitor for monitoring received signals to detect access requests, for monitoring an assigned resource in said received signals to detect received page messages and for monitoring said received signals to detect received request response messages;

said controller determining whether an access request and/or a page message has been detected;

said controller being responsive to an indication that an access request has been detected for controlling said controllable transmitter to transmit a request message on a resource dedicated to this mobile unit;

said controller being responsive to an indication that a request response message has been received for controlling said controllable transmitter to transmit an acknowledgment indicating reception of the request response message; and

said controller being responsive to an indication that a page message has been detected for controlling said controllable transmitter to transmit an acknowledgment indicating reception of the page message,

wherein said controller controls said mobile unit so that processing of said access requests takes precedence over processing of said received page messages,

whereby latency is minimized in gaining access to a base station.

36. The apparatus as defined in claim 35 wherein said monitor monitors for page messages and for access requests substantially simultaneously.

37. The apparatus as defined in claim 35 wherein said controller controls said mobile unit to perform action indicated in said received page message.

38. The apparatus as defined in claim 35 wherein said controller determines the correctness of a received request response message.

39. The apparatus as defined in claim 38 wherein said controller in determining correctness determines if said received request response message is consistent with said transmitted request message and wherein said controllable transmitter is controlled by said controller to transmit said acknowledgment when said received request response message is consistent with said transmitted request message.

40. The apparatus as defined in claim 39 wherein said controller controls said mobile unit to perform action indicated in a received request response message.

41. The apparatus as defined in claim 35 wherein said resource is a segment.

42. The apparatus as defined in claim 41 wherein said monitor in monitoring for said page messages monitors assignment segments.

43. The apparatus as defined in claim 42 wherein said request response messages are received in assignment segments and said monitor in monitoring for request response messages monitors all of received assignment segments.

44. The apparatus as defined in claim 43 wherein individual ones of said received assignment segments include a request response messages and a page message.

45. Apparatus for use in a wireless communications base station comprising:

a controllable receiver;

a controllable transmitter;

a controller;

said controllable receiver including a monitor for monitoring received signals to detect pages and for monitoring said received signals to detect request messages;

said controller determining whether a request message and/or a page has been detected;

said controller being responsive to an indication that a page has been detected for controlling said controllable transmitter to transmit a page message in an assigned resource;

said monitor monitoring for a received acknowledgment indicating that the page message was received by a mobile unit;

said controller being responsive to an indication that a request message has been received for controlling said controllable transmitter to substantially immediately transmit a request response message in a prescribed resource,

wherein controller controls said base station so that processing of said request messages takes precedence over Processing of said pages; and

said monitor monitoring for a received acknowledgment indicating that the request response message was received by a mobile unit,

whereby latency is minimized in providing access to said mobile unit.

46. The apparatus as defined in claim 45 wherein said monitor monitors for pages and for request messages substantially simultaneously.

47. The apparatus as defined in claim 45 wherein said controller controls said base station to perform action indicated in said received request message.

48. The apparatus as defined in claim 45 wherein said controller controls said base station to perform action indicated in said page message.

49. The apparatus as defined in claim 45 wherein said resource is a segment.

50. The apparatus as defined in claim 49 wherein said controller controls said controllable transmitter to transmit said request response message in an assignment segment.

51. The apparatus as defined in claim 45 wherein said transmitted messages include message indicators indicating a class of message and a type of message.

52. The apparatus as defined in claim 51 wherein said request response message includes one of said indicators including an indication that the received message was a request and an indication of the message class.

53. The apparatus as defined in claim 51 wherein said page message includes one of said indicators including an indication that the message being transmitted is a page and an indication of the message class.

54. Apparatus for use in a wireless communication system:

in a mobile unit,

a first controllable receiver,

a first controllable transmitter,

a first controller,

said first controllable receiver including a first monitor for monitoring received signals to detect access requests, for monitoring an assigned resource in said received signals to detect received messages and for monitoring said received signals to detect received request response messages,

said first controller determining whether an access request and/or a page message has been detected;

said first controller being responsive to an indication that an access request has been detected for controlling said first controllable transmitter to transmit a request message on a resource dedicated to this mobile unit,

said first controller being responsive to an indication that a request response message has been received for controlling said first controllable transmitter to transmit an acknowledgment indicating reception of the request response message, and

said first controller being responsive to an indication that a page message has been detected for controlling said first controllable transmitter to transmit an acknowledgment indicating reception of the page message; and

in a base station,

a second controllable receiver,

a second controllable transmitter,

a second controller,

said second controllable receiver including a second monitor for monitoring received signals to detect pages and for monitoring said received signals to detect request messages,

said second controller determining whether a request message and/or a page has been detected,

said second controller being responsive to an indication that a page has been detected for controlling said controllable transmitter to transmit a page message in an assigned resource,

said second monitor monitoring for a received acknowledgment indicating that the page message was received by a mobile unit,

said second controller being responsive to an indication that a request message has been received for controlling said second controllable transmitter to substantially immediately transmit a request response message in a prescribed resource, and

said second monitor monitoring for a received acknowledgment indicating that the request response message was received by a mobile unit;

wherein said first controller controls said mobile unit so that processing of said requests takes precedence over processing of said received page messages, and wherein said second controller controls said base station so that processing of said received request messages takes precedence over processing of said pages,

whereby latency is minimized in providing access to said mobile unit.

55. The apparatus as defined in claim 54 wherein said first monitor monitors for page messages and for access requests in said mobile unit substantially simultaneously.

56. The apparatus as defined in claim 54 wherein said second monitor monitors for pages and for request messages in said base station substantially simultaneously.

57. The apparatus as defined in claim 54 wherein said first controller determines the correctness of a received request response message in said mobile unit.

58. The apparatus as defined in claim 54 wherein said resource is a segment.

59. The apparatus as defined in claim 58 wherein said first monitor in monitoring for said page messages monitors assignment segments.

60. The apparatus as defined in claim 58 wherein said second controller controls said second controllable transmitter to transmit said request response message in an assignment segment.

61. The apparatus as defined in claim 58 wherein said first receiver receives said request response messages in assignment segments and said first monitor in monitoring for request response messages monitors all of said received assignment segments.

62. The apparatus as defined in claim 61 wherein individual ones of said received assignment segments include a request response messages and a page message.

63. The apparatus as defined in claim 54 wherein said messages transmitted by said second transmitter include message indicators indicating a class of message and a type of message.

64. The apparatus as defined in claim 63 wherein said request response message includes one of said indicators including an indication that the received message was a request and an indication of the message class.

65. The apparatus as defined in claim 63 wherein said page message includes one of said indicators including an indication that the message being transmitted is a page and an indication of the message class.