CA2350822A1 - Packet traffic channel deallocation - Google Patents
Packet traffic channel deallocation Download PDFInfo
- Publication number
- CA2350822A1 CA2350822A1 CA002350822A CA2350822A CA2350822A1 CA 2350822 A1 CA2350822 A1 CA 2350822A1 CA 002350822 A CA002350822 A CA 002350822A CA 2350822 A CA2350822 A CA 2350822A CA 2350822 A1 CA2350822 A1 CA 2350822A1
- Authority
- CA
- Canada
- Prior art keywords
- multicast address
- mobile stations
- field
- packet
- channel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/30—Resource management for broadcast services
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/30—Connection release
Abstract
The present invention provides a method and system for quickly deallocating packet traffic channels. According to exemplary embodiments of the present invention, the capability of performing point-to-multipoint communications i s provided on the PTCH by defining a multicast address that all mobiles read. Through the use of a multicast address, a plurality of mobile stations can simultaneously be notified of the termination of PTCH services. As a result, the network can reallocate PTCH resources in a minimum amount of time.</SDOA B>
Claims (32)
1. A method for deallocating a packet traffic channel on which a plurality of mobile stations are active, said method comprising the steps of:
transmitting a multicast address to said plurality of mobile stations on said packet traffic channel; and removing said plurality of mobile stations from said packet traffic channel upon a receipt of said multicast address.
transmitting a multicast address to said plurality of mobile stations on said packet traffic channel; and removing said plurality of mobile stations from said packet traffic channel upon a receipt of said multicast address.
2. The method of claim 1 wherein said multicast address is transmitted in at least one downlink time slot.
3. The method of claim 1 wherein said multicast address is a sequence of 0's.
4. The method of claim 1 wherein said multicast address is one of a group of temporary addresses which can be assigned to said plurality of active mobile stations.
5. The method of claim 1 wherein said multicast address is transmitted in only one time slot.
6. A method for deallocating at least one packet traffic channel to which a plurality of mobile stations have reserved access, said method comprising the steps of:
monitoring, by each of said plurality of mobile stations, a downlink transmission on said at least one packet traffic channel; and switching, by each of said plurality of mobile stations, to a different channel in response to said downlink transmission comprising a multicast address.
monitoring, by each of said plurality of mobile stations, a downlink transmission on said at least one packet traffic channel; and switching, by each of said plurality of mobile stations, to a different channel in response to said downlink transmission comprising a multicast address.
7. The method of claim 6 wherein said step of monitoring comprises the steps of:
monitoring, by each of said plurality of mobile stations, a packet channel feedback field in said downlink transmission, said packet channel feedback field comprises a feedback sub-field and an allocation sub-field; and examining, by each of said plurality of mobile stations, said allocation sub-field for said multicast address only when said feedback sub-field comprises a value indicating that the allocation sub-field is to be examined.
monitoring, by each of said plurality of mobile stations, a packet channel feedback field in said downlink transmission, said packet channel feedback field comprises a feedback sub-field and an allocation sub-field; and examining, by each of said plurality of mobile stations, said allocation sub-field for said multicast address only when said feedback sub-field comprises a value indicating that the allocation sub-field is to be examined.
8. The method of claim 6 further comprising the steps of:
performing, by each of said plurality of mobile stations, a cyclic redundancy check on a packet data unit received in said downlink using said multicast address; and performing, by each of said plurality of mobile stations, a cyclic redundancy check on said packet data unit using a temporary address, wherein said switching step is performed in response to a successful step of performing said cyclic redundancy check using said multicast address.
performing, by each of said plurality of mobile stations, a cyclic redundancy check on a packet data unit received in said downlink using said multicast address; and performing, by each of said plurality of mobile stations, a cyclic redundancy check on said packet data unit using a temporary address, wherein said switching step is performed in response to a successful step of performing said cyclic redundancy check using said multicast address.
9. The method of claim 7 wherein said multicast address is a sequence of 0's.
10: The method of claim 8 wherein said multicast address is one of a group of temporary addresses which can be assigned to said plurality of mobile stations.
11. The method of claim 6 wherein said multicast address is transmitted in at least one time slot of said downlink transmission.
12. The method of claim 11 wherein said multicast address is transmitted in only one time slot of said downlink transmission.
13. A system for deallocating at least one packet traffic channel an which a plurality of mobile stations are active, said system comprising:
means for transmitting, in at least one downlink time slot, a multicast address to said plurality of mobile stations on said at least one packet traffic channel;
and means for removing said plurality of mobile stations from said at least one packet traffic channel in response to said multicast address.
means for transmitting, in at least one downlink time slot, a multicast address to said plurality of mobile stations on said at least one packet traffic channel;
and means for removing said plurality of mobile stations from said at least one packet traffic channel in response to said multicast address.
14. The system of claim 13 wherein said multicast address is a sequence of 0's.
15. The system of claim 13 wherein said multicast address is one of a group of temporary addresses which can be assigned to said plurality of active mobile stations.
16. The system of claim 13 wherein said multicast address is transmitted in only one time slot.
17. A mobile station comprising:
means for monitoring a downlink transmission on a packet traffic channel; and means for switching to a different channel in response to said downlink transmission comprising a multicast address.
means for monitoring a downlink transmission on a packet traffic channel; and means for switching to a different channel in response to said downlink transmission comprising a multicast address.
18. The mobile station of claim 17 wherein said means for monitoring comprises:
means for monitoring a packet channel feedback field in said downlink transmission, said packet channel feedback field comprises a feedback sub-field and an allocation sub-field; and means for examining said allocation sub-field for said multicast address only when said feedback sub-field comprises a value indicating that the allocation sub-field is to be examined.
means for monitoring a packet channel feedback field in said downlink transmission, said packet channel feedback field comprises a feedback sub-field and an allocation sub-field; and means for examining said allocation sub-field for said multicast address only when said feedback sub-field comprises a value indicating that the allocation sub-field is to be examined.
19. The mobile station of claim 17 further comprising:
a first cyclic redundancy check engine for performing a cyclic redundancy check on a packet data unit received in said downlink using said multicast address; and a second code redundancy check engine for performing a cyclic redundancy check on said packet data unit using a temporary address, wherein said means for switching switches to a different channel in response to successfully performing said cyclic redundancy check using said multicast address.
a first cyclic redundancy check engine for performing a cyclic redundancy check on a packet data unit received in said downlink using said multicast address; and a second code redundancy check engine for performing a cyclic redundancy check on said packet data unit using a temporary address, wherein said means for switching switches to a different channel in response to successfully performing said cyclic redundancy check using said multicast address.
20. The mobile station of claim 18 wherein said multicast address is a sequence of 0's.
21. The mobile station of claim 19 wherein said multicast address is one of a group of temporary addresses which can be assigned to mobile stations which have reserved access to said packet traffic channel.
22. The mobile station of claim 17 wherein said multicast address is transmitted in at least one time slot of said downlink transmission.
23. The mobile station of claim 22 wherein said multicast address is transmitted in only one time slot of said downlink transmission.
24. A system for deallocating a packet traffic channel to which a plurality of mobile stations have reserved access, said system comprising:
means for transmitting to said plurality of mobile stations a multicast address in at least one time slot of a downlink transmission on said packet traffic channel;
means for deallocating said packet traffic channel in response to a receipt of said multicast address by said plurality of mobile stations.
means for transmitting to said plurality of mobile stations a multicast address in at least one time slot of a downlink transmission on said packet traffic channel;
means for deallocating said packet traffic channel in response to a receipt of said multicast address by said plurality of mobile stations.
25. The system of claim 24 wherein said multicast address is a sequence of 0's.
26. The system of claim 24 wherein said multicast address is one of a group of temporary addresses which can be assigned to said plurality of mobile stations.
27. A method for deallocating at least one packet traffic channel to which a plurality of mobile stations have reserved access, said method comprising the steps of:
monitoring, by each of said plurality of mobile stations, a packet channel feedback field in a downlink transmission, said packet channel feedback field comprising a feedback sub-field and an assignment sub-field;
examining, by each of said plurality of mobile stations, said assignment sub-field when said feedback sub-field contains a predetermined value; and switching, by each of said plurality of mobile stations, to a different channel in response to said assignment sub-field comprising a predetermined indication value.
monitoring, by each of said plurality of mobile stations, a packet channel feedback field in a downlink transmission, said packet channel feedback field comprising a feedback sub-field and an assignment sub-field;
examining, by each of said plurality of mobile stations, said assignment sub-field when said feedback sub-field contains a predetermined value; and switching, by each of said plurality of mobile stations, to a different channel in response to said assignment sub-field comprising a predetermined indication value.
28. The method of claim 27 wherein said different channel is a packet control channel.
29. The method of claim 28 wherein said packet control channel is defined by default.
30. A system for deallocating at least one packet traffic channel in a radiocommunication system, said system comprising:
a network which transmits and receives data on said at least one packet traffic channel; and a plurality of mobile stations which have reserved access to said at least one packet traffic channel, each of said plurality of mobile stations comprising:
means for monitoring a packet channel feedback field in a downlink transmission from said network on said at least one packet traffic channel, said packet channel feedback field comprising a feedback sub-field and an assignment sub-field;
means for examining said assignment sub-field when said feedback sub-field contains a predetermined value; and means for switching to a different channel in response to said assignment sub-field comprising a predetermined indication value.
a network which transmits and receives data on said at least one packet traffic channel; and a plurality of mobile stations which have reserved access to said at least one packet traffic channel, each of said plurality of mobile stations comprising:
means for monitoring a packet channel feedback field in a downlink transmission from said network on said at least one packet traffic channel, said packet channel feedback field comprising a feedback sub-field and an assignment sub-field;
means for examining said assignment sub-field when said feedback sub-field contains a predetermined value; and means for switching to a different channel in response to said assignment sub-field comprising a predetermined indication value.
31. The system of claim 30 wherein said different channel is a packet control channel.
32. The system of claim 31 wherein said packet control channel is defined by default.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US09/192,938 | 1998-11-16 | ||
| US09/192,938 US6597680B1 (en) | 1998-11-16 | 1998-11-16 | Packet traffic channel reassignment |
| PCT/SE1999/002071 WO2000030378A1 (en) | 1998-11-16 | 1999-11-12 | Packet traffic channel deallocation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2350822A1 true CA2350822A1 (en) | 2000-05-25 |
| CA2350822C CA2350822C (en) | 2010-08-17 |
Family
ID=22711646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2350822A Expired - Lifetime CA2350822C (en) | 1998-11-16 | 1999-11-12 | Packet traffic channel deallocation |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US6597680B1 (en) |
| JP (1) | JP4633932B2 (en) |
| AR (1) | AR025136A1 (en) |
| AU (1) | AU1593600A (en) |
| BR (1) | BR9915364A (en) |
| CA (1) | CA2350822C (en) |
| WO (1) | WO2000030378A1 (en) |
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-
1998
- 1998-11-16 US US09/192,938 patent/US6597680B1/en not_active Expired - Lifetime
-
1999
- 1999-11-12 AU AU15936/00A patent/AU1593600A/en not_active Abandoned
- 1999-11-12 JP JP2000583273A patent/JP4633932B2/en not_active Expired - Lifetime
- 1999-11-12 CA CA2350822A patent/CA2350822C/en not_active Expired - Lifetime
- 1999-11-12 WO PCT/SE1999/002071 patent/WO2000030378A1/en active Application Filing
- 1999-11-12 BR BR9915364-5A patent/BR9915364A/en not_active Application Discontinuation
- 1999-11-16 AR ARP990105820A patent/AR025136A1/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| JP4633932B2 (en) | 2011-02-16 |
| BR9915364A (en) | 2001-07-31 |
| US6597680B1 (en) | 2003-07-22 |
| CA2350822C (en) | 2010-08-17 |
| WO2000030378A1 (en) | 2000-05-25 |
| AR025136A1 (en) | 2002-11-13 |
| AU1593600A (en) | 2000-06-05 |
| JP2002530954A (en) | 2002-09-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKEX | Expiry |
Effective date: 20191112 |