Automatic retransmission request

• US 5,633,874 A
• Filed: 10/31/1994
• Issued: 05/27/1997
• Est. Priority Date: 11/01/1993
• Status: Expired due to Term

• Current Assignee: Telefonaktiebolaget LM Ericsson
• Original Assignee: Telefonaktiebolaget LM Ericsson
• Inventors: Diachina, John W., Persson, Bengt, Andersson, H.ang.kan C.
• Primary Examiner(s): Olms, Douglas W.
• Assistant Examiner(s): Patel, Ajit
• Application Number:
  US08/332,114
• Time in Patent Office: 939 Days
• Field of Search: 370/95.1-95.3, 370/110.1, 370/13, 370/17, 370/85.8, 370/60, 370/60.1, 370/94.1-94.3, 370/85.2, 340/825.08, 340/825.54, 455/33.1, 455/33.2, 455/54.1, 455/54.2, 379/59, 379/60, 371/32, 371/33
• US Class Current: 370/329
• CPC Class Codes: H04B 7/2643 using time-division multiple access [TDMA] H04B7/2615, H04B7/2618 take precedence
• CPC Class Codes: H04B 7/2656 for structure of frame, burst
• CPC Class Codes: H04L 1/0002 by adapting the transmission rate
• CPC Class Codes: H04L 1/0046 Code rate detection or code type detection H04L1/0038 takes precedence; detection of the data rate H04L25/0262; for packet format H04L1/0091
• CPC Class Codes: H04L 1/0056 Systems characterized by the type of code used H04L1/08 takes precedence
• CPC Class Codes: H04L 1/0057 Block codes H04L1/0061, H04L1/0064 take precedence
• CPC Class Codes: H04L 1/0059 Convolutional codes
• CPC Class Codes: H04L 1/0061 Error detection codes
• CPC Class Codes: H04L 1/0071 Use of interleaving interleaving per se H03M13/27
• CPC Class Codes: H04L 1/0072 Error control for data other than payload data, e.g. control data
• CPC Class Codes: H04L 1/0083 Formatting with frames or packets; Protocol or part of protocol for error control
• CPC Class Codes: H04L 1/08 by repeating transmission, e.g. Verdan system H04L1/1858 and H04L1/189 take precedence
• CPC Class Codes: H04L 1/1614 using bitmaps
• CPC Class Codes: H04L 1/1685 the supervisory signal being transmitted in response to a specific request, e.g. to a polling signal
• CPC Class Codes: H04L 1/18 Automatic repetition systems, e.g. Van Duuren systems
• CPC Class Codes: H04L 1/1803 Stop-and-wait protocols
• CPC Class Codes: H04L 1/1809 Selective-repeat protocols
• CPC Class Codes: H04L 1/1848 Time-out mechanisms
• CPC Class Codes: H04L 1/188 Time-out mechanisms
• CPC Class Codes: H04L 1/20 using signal quality detector
• CPC Class Codes: H04L 2001/0093 : Point-to-multipoint
• CPC Class Codes: H04L 9/40 : Network security protocols
• CPC Class Codes: H04W 36/30 : by measured or perceived connection quality data
• CPC Class Codes: H04W 48/10 : using broadcasted information
• CPC Class Codes: H04W 48/16 : Discovering, processing access restriction or access information
• CPC Class Codes: H04W 48/20 : Selecting an access point
• CPC Class Codes: H04W 52/0212 : managed by the network, e.g. network or access point is master and terminal is slave
• CPC Class Codes: H04W 52/0245 : according to signal strength
• 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 68/025 : Indirect paging
• CPC Class Codes: H04W 88/02 : Terminal devices
• CPC Class Codes: Y02D 30/70 : in wireless communication networks

Abstract

A method for obtaining a report from a mobile station on the status of frames comprising an entire message transmitted to the mobile station is disclosed. First, a polling request is sent to the mobile station from a base station. A status report is then sent to the base station. The polling request specifies whether the mobile station should send the status report on a reservation basis (using a reserved frame) or on a contention basis (using an idle frame). The mobile station then transmits a bit map to the communication system to indicate which frames have been correctly received by the mobile station at the point when it received the polling request.

Claims

1. A method for obtaining a report on the status of frames comprising a message transmitted to a remote station, comprising the steps of:

transmitting said message to said remote station from a base station using layer 2 frames;

sending a status request to said remote station from the base station using a layer 2 bit which is distinct from layer 2 bits used to carry the message; and

sending a status report to said base station, wherein said status request contains a second layer 2 bit which specifies whether the remote station should send the status report on a reservation basis or on a contention basis.

2. A method according to claim 1, wherein said layer 2 information is the Busy/Reserved/Idle portion of shared channel feedback information.

3. A method according to claim 1, wherein said status request uses layer 2 information to identify said remote station to which said status request is being sent.

4. A method according to claim 3, wherein said layer 2 information is a partial echo (PE) portion of shared channel feedback information.

5. A base station for use in a cellular communication system, comprising:

means for transmitting a message to a mobile station using layer 2 frames;

means for transmitting a status request to the mobile station using a layer 2 bit which is distinct from layer 2 bits used to carry the message;

means for receiving a status report from said mobile station in response to said status request, wherein said status request contains a second layer 2 bit which specifies whether the mobile station should send the status report on a reservation basis or on a contention basis.

6. A base station according to claim 5, wherein said layer 2 information is a busy/reserved/idle portion of shared channel feedback information.

7. A mobile station for use in a cellular communication system, comprising:

means for receiving a message from said cellular system which is transmitted using layer 2 frames;

means for receiving a status request from said cellular system which is transmitted using a layer 2 bit which is distinct from layer 2 bits used to carry the message;

means for transmitting a status report to said cellular system in response to said status request, wherein said status request contains a second layer 2 bit which specifies whether the mobile station should send the status report on a reservation basis or on a contention basis.

8. A mobile station according to claim 7, wherein said layer 2 information is a busy/reserved/idle portion of shared channel feedback information.

9. A mobile station according to claim 7, wherein said mobile station transmits said status report to a base station in said cellular system.

10. A mobile station according to claim 7, wherein said status request includes layer 2 information to indicate which mobile station is being sent a status request.

11. A mobile station according to claim 10, wherein said layer 2 information are a partial echo portion of shared channel feedback information.