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Patent US6430163B1 successfully refreshed from Google Patents.
US6430163B1
Expired / Lapsed
US
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Allocation of control channel in packet radio network
Assignee: Qualcomm Inc
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Filing: 1998-03-27
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Granted: 2002-08-06
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Expires: 2018-03-27
Abstract
Abstract A method for allocating a packet associated control channel to mobile stations in a packet radio system, particularly in a GPRS system. The sends a resource allocation request, to which a network responds by allocating to the mobile station a TFI identifier and a USF identifier. The network then sends data packets in blocks, at least some of which comprise a polling field (SIP), a polling state which indicates that the mobile station is to acknowledge received data packets on the control channel. To ensure that a mobile station receiving in downlink would not prevent the network from allocating one uplink mobile station to said channel, the allocation of the packet associated control channel is, in accordance with the invention, independent of a possible USF identifier.
Inventors
- 👤 Jari Mustajärvi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:18
CPC Classifications
H; H04; H04L; H04L1/00; H04L1/12; H04L1/16; H04L1/1607; H04L1/1685; H04W; H04W72/00; H04W72/20; H04W72/21; H04W74/00; H04W74/04; H04W74/06; H04W72/04; H04W72/044; H04W74/08; H04W74/0833; H04W8/00; H04W8/26; H04W84/00; H04W84/02; H04W84/04
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
219 words
A method for allocating a control channel to one of a plurality of mobile stations in a packet radio system for a downlink transmission, comprising: sending a resources allocation request to the packet radio system via the one of a plurality of mobile stations; responding to the resources allocation request by the packet radio system allocating a control channel and possibly an uplink status flag to the one of a plurality of mobile stations; and sending data packets in blocks, at least some of which comprise a polling field which, when in a polling state, indicates that the one of a plurality mobile stations is to acknowledge received data packets on the control channel allocated to it; allocating the control channel to the one of a plurality of mobile stations independently of a possible uplink status flag; acknowledging, by the one of the plurality of mobile status, the data packets received after a predetermined time from a downlink block in which said polling field is in said polling state; reserving the uplink block at time T for a polling acknowledgement from the one of a plurality of mobile stations after receiving a downlink block with a polling filed that is in the polling state; and making no assignment of an uplink status flag allocation to any other mobile station.
Claim 2
Independent Claim
219 words
A method for allocating a control channel to one of a plurality of mobile stations in a packet radio system for a downlink transmission, comprising: sending a resources allocation request to the packet radio system via the one of a plurality of mobile stations; responding to the resources allocation request by the packet radio system allocating a control channel and possibly an uplink status flag to the one of a plurality of mobile stations; and sending data packets in blocks, at least some of which comprise a polling field which, when in a polling state, indicates that the one of a plurality mobile stations is to acknowledge received data packets on the control channel allocated to it; allocating the control channel to the one of a plurality of mobile stations independently of a possible uplink status flag; acknowledging, by the one of the plurality of mobile status, the data packets received after a predetermined time from a downlink block in which said polling field is in said polling state; reserving the uplink block at time T for a polling acknowledgement from the one of a plurality of mobile stations after receiving a downlink block with a polling filed that is in the polling state; and making no assignment of an uplink status flag allocation to any other mobile station.
Claim 3
Dependent Claim
14 words
The method according to claim 1 , wherein the predetermined time T is fixed.
Claim 4
Dependent Claim
32 words
The method according to claim 2 , further comprising allocating a random access burst identifier to the mobile station in connection with downlink allocation of resources to inform about a timing advance.
Claim 5
Dependent Claim
19 words
The method according to claim 1 , wherein the predetermined time T corresponds to a fixed number of blocks.
Claim 6
Dependent Claim
32 words
The method according to claim 4 , further comprising allocating a random access burst identifier to the mobile station in connection with downlink allocation of resources to inform about a timing advance.
Claim 7
Dependent Claim
54 words
The method according to claim 1 , wherein the predetermined time T is defined in such a way that the downlink data blocks, in which said polling field is in the polling state, comprise an additional extension field denoting the uplink block in which the mobile station is to acknowledge the received data packets.
Claim 8
Dependent Claim
49 words
The method according to claim 4 , wherein said additional extension field denotes the number of the blocks from the downlink data block, in which said polling field is in the polling state to the uplink block in which the mobile station is to acknowledge the received data packets.
Claim 9
Dependent Claim
26 words
The method according to claim 6 , further comprising allocating a random access burst identifier to the mobile station in connection with downlink allocation of resources.
Claim 10
Dependent Claim
26 words
The method according to claim 7 , further comprising allocating a random access burst identifier to the mobile station in connection with downlink allocation of resources.
Claim 11
Dependent Claim
32 words
A method according to claim 1 , further comprising allocating a random access burst identifier to the mobile station in connection with downlink allocation of resources to inform about a timing advance.
Claim 12
Dependent Claim
45 words
The method according to claim 10 , wherein the blocks are transmitted as sequences which are repeated so that an idle burst recurs at intervals of a few blocks, and at least some of the idle bursts are allocated to the random access burst identifiers.
Claim 13
Dependent Claim
20 words
The method according to claim 7 , wherein every other idle burst is allocated to the random access burst identifiers.
Claim 14
Dependent Claim
19 words
The method according to claim 1 , wherein the packet radio system is a General Packet Radio Service systems.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2005-08-05 | 2006-02-04 | 2006-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2009-08-05 | 2010-02-04 | 2010-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2013-08-05 | 2014-02-04 | 2014-08-06 | $7700.00 | Window Closed / Lapsed |