Abstract
A re-selection method reduces the time needed for switching a packet data session from a first packet data channel in one cell of a communication network to a second packet data channel in another cell. While the mobile station is engaged in a packet data session on the first packet data channel it continually monitors the channel quality of control channels in adjacent cells. When certain predetermined criteria are met one or more of the adjacent control channels are identified as potential re-selection candidates. During the packet data session the mobile station reads at least part of the broadcast information on the control channels identified as potential re-selection candidates. The broadcast information is read on the adjacent control channels before the re-selection decision is made. When a predetermined re-selection criteria is met the mobile station switches to a new packet data channel in the selected cell. Since the mobile station has previously read the broadcast information in the selected cell it can immediately acquire service of the new packet data channel.
A re-selection method reduces the time needed for switching a packet data session from a first packet data channel in one cell of a communication network to a second packet data channel in another cell. While the mobile station is engaged in a packet data session on the first packet data channel it continually monitors the channel quality of control channels in adjacent cells. When certain predetermined criteria are met one or more of the adjacent control channels are identified as potential re-selection candidates. During the packet data session the mobile station reads at least part of the broadcast information on the control channels identified as potential re-selection candidates. The broadcast information is read on the adjacent control channels before the re-selection decision is made. When a predetermined re-selection criteria is met the mobile station switches to a new packet data channel in the selected cell. Since the mobile station has previously read the broadcast information in the selected cell it can immediately acquire service of the new packet data channel.
| Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | |||||
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| Declaration Date | Declaration Reference | Declaring Company | Specification Number | ||||||
| 2G | 19/12/2010 | ISLD-201101-002 | ERICSSON INC |
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No | Family Member | |||
| 3G | 19/12/2018 | ISLD-201806-035 | SONY CORP | Yes | Basis Patent | ||||
Specification Information
Specification Information
Technologies
Family Information
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| Declaration Date | Declaration Reference | Declaring Company | Specification Number | |||||||
| US2004136392A1 | 2G | 19/12/2010 | ISLD-201101-002 | ERICSSON INC |
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Yes | Basis Patent | |||
| US2004136392A1 | 3G | 19/12/2018 | ISLD-201806-035 | SONY CORP | No | Family Member | ||||
| US7376104B2 | 2G | 19/12/2010 | ISLD-201101-002 | ERICSSON INC |
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Yes | Basis Patent | |||
| US7376104B2 | 3G | 19/12/2018 | ISLD-201806-035 | SONY CORP | No | Family Member | ||||
| AT339860T | 2G | 19/12/2010 | ISLD-201101-002 | ERICSSON INC | No | Family Member | ||||
| AT339860T | 3G | 19/12/2018 | ISLD-201806-035 | SONY CORP | No | Family Member | ||||
| EP1212913B1 | 2G | 19/12/2010 | ISLD-201101-002 | ERICSSON INC | No | Family Member | ||||
| EP1212913B1 | 3G | 19/12/2018 | ISLD-201806-035 | SONY CORP | Yes | Basis Patent | ||||
| JP4623901B2 | 2G | 19/12/2010 | ISLD-201101-002 | ERICSSON INC | No | Family Member | ||||
| JP4623901B2 | 3G | 19/12/2018 | ISLD-201806-035 | SONY CORP | No | Family Member | ||||
| MXPA02001782A | 2G | 19/12/2010 | ISLD-201101-002 | ERICSSON INC |
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No | Family Member | |||
| MXPA02001782A | 3G | 19/12/2018 | ISLD-201806-035 | SONY CORP | No | Family Member | ||||
| WO0115482A1 | 2G | 19/12/2010 | ISLD-201101-002 | ERICSSON INC |
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No | Family Member | |||
| WO0115482A1 | 3G | 19/12/2018 | ISLD-201806-035 | SONY CORP | No | Family Member | ||||
| JP2003507981A | 2G | 19/12/2010 | ISLD-201101-002 | ERICSSON INC | No | Family Member | ||||
| JP2003507981A | 3G | 19/12/2018 | ISLD-201806-035 | SONY CORP | No | Family Member | ||||
| CN1382360A | 2G | 19/12/2010 | ISLD-201101-002 | ERICSSON INC | No | Family Member | ||||
| CN1382360A | 3G | 19/12/2018 | ISLD-201806-035 | SONY CORP | No | Family Member | ||||
| DE60030740T2 | 2G | 19/12/2010 | ISLD-201101-002 | ERICSSON INC | No | Family Member | ||||
| DE60030740T2 | 3G | 19/12/2018 | ISLD-201806-035 | SONY CORP | No | Family Member | ||||
| AU6954100A | 3G | 19/12/2018 | ISLD-201806-035 | SONY CORP | No | Family Member | ||||
| Publication No | Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | Status | National Phase Entries | |||||
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Technologies
Multiple access
Product
Use Cases
Wireless communication
Services
Claim
1. A re-selection method for switching a packet data session from a first packet data channel in one cell of a cellular communication network to a second packet data channel in another cell comprising: a) beginning a packet data session on a packet data channel in a first cell of said network; b) during said packet data session, monitoring the channel quality of adjacent control channels in adjacent cells; c) identifying one or more adjacent control channels as potential re-selection candidates; d) reading at least part of the broadcast information on the control channel identified as a re-selection candidate while engaged in said packet data session and prior to initiating a re-selection procedure; e) when a predetermined re-selection criteria is met, switching to a new packet data channel in the cell corresponding to a selected one of said re-selection candidates; f) resuming the packet data session on said new packet data channel.
2. The re-selection method of claim 1 wherein the re-selection criteria is based upon a signal quality measure.
3. The re-selection method of claim 2 wherein the signal quality measure is a measure of received signal strength on the control channel.
4. The re-selection method of claim 3 wherein an adjacent control channel is identified as a re-selection candidate based upon the received signal strength of the control channel.
5. The re-selection method of claim 4 wherein an adjacent control channel is identified as a re-selection candidate when it is one of the n strongest control channels that are being monitored.
6. The re-selection method of claim 4 wherein an adjacent control channel is identified as a re-selection candidate when the received signal strength reaches a predetermined threshold.
7. A re-selection method comprising: a) beginning a communication session on a traffic channel in a first cell; b) during said communication session, reading at least part of the broadcast information on the adjacent control channels in one or more adjacent cells that are identified as potential re-selection candidates; c) when a predetermined re-selection criteria is met, switching to a new traffic channel in the cell corresponding to a selected one of said re-selection candidates; and d) resuming the packet data session on said new packet data channel.
8. The re-selection method of claim 7 wherein the re-selection criteria is based upon a signal quality measure.
9. The re-selection method of claim 8 wherein the signal quality measure is a measure of received signal strength on the control channel
10. The re-selection method of claim 9 wherein an adjacent control channel is identified as a re-selection candidate based upon the received signal strength of the control channel
11. The re-selection method of claim 10 wherein an adjacent control channel is identified as a re-selection candidate when it is one of the n strongest control channels that are being monitored
12. The re-selection method of claim 10 wherein an adjacent control channel is identified as a re-selection candidate when the received signal strength reaches a predetermined threshold.']
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SUMMARY
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The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)
The information in grey was provided by the patent holder
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Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.
Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.
Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.
Family member:related patents or applications that share a common priority or original filing.