EP0491494A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Call path resource allocation in a wireless telecommunications system
Assignee: AT&T Inc
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Filing: 1991-12-03
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Granted: —
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Expires: 2011-12-03
Abstract
Abstract A wireless telecommunications system (100) allocates call path resources (140,145) in an orderly manner by queuing call requests during, for example, radio channel unavailability, and assigning radio channels to queued call requests as they become available. To accommodate movement of the mobile station (e.g. 110) within the service area, a plurality of queues (Q1,Q2,Q3...QN) are provided for different locations, and a call request is sequentially placed in different queues as the mobile station moves. The system is usable for both incoming and outgoing calls.
Inventors
- 👤 Brian David Bolliger
- 👤 Charalambos George Constantinides
- 👤 Steven Lee Stevens
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-02 23:00
CPC Classifications
H; H04; H04W; H04W28/00; H04W28/02; H04W28/10; H04W28/14; H04W76/00; H04W76/10; H04W36/00; H04W36/08; H04W72/00; H04W72/20; H04W72/21; H04W72/23
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
115 words
In a wireless telecommunications system including a plurality of cells, each of said cells using a plurality of radio channels for communication, a method comprising the steps of: in response to a call request from a mobile station in a first one of said cells and the unavailability of radio channels in said first cell, said wireless telecommunications system placing said call request in a queue for said first cell, and in response to movement of said mobile station from said first cell to a second one of said cells and the unavailability of radio channels in said second cell, said wireless telecommunications system placing said call request in a queue for said second cell.
Claim 2
Dependent Claim
19 words
A method according to claim 1 further comprising removing said call request from said queue for said first cell.
Claim 3
Dependent Claim
50 words
A method according to claim 1, further comprising after placing said call request in said queue for said first cell, said wireless telecommunications system periodically sending a signal to said mobile station, and said mobile station sending an acknowledgement message to said wireless telecommunications system in response to said signal.
Claim 4
Dependent Claim
57 words
A method according to claim 3, wherein each of said cells comprises cell site means for receiving radio signals, said method further comprising determining movement of said mobile station from said first cell to said second cell, said determining movement comprising said cell site means of said second cell receiving a radio signal comprising said acknowledgement message.
Claim 5
Dependent Claim
53 words
A method according to claim 1, wherein said mobile station has an associated priority status, and said step of placing said call request in said queue for said first cell includes placing said call request in said queue for said first cell such that said call request is accessible in priority status order.
Claim 6
Dependent Claim
125 words
A method according to claim 1, wherein said mobile station has an associated priority status, said method further comprising after receiving said call request from said mobile station, determining whether entries in said queue for said first cell are available, in response to determining that no entries in said queue for said first cell are available, comparing said priority status of said mobile station to the priority status of other mobile stations with call requests in said queue for said first cell, and replacing a call request from one of said other mobile stations with said call request from said requesting mobile station when said comparing indicates that said requesting mobile station has a higher priority status than said one of said other mobile stations.
Claim 7
Dependent Claim
45 words
A method according to claim 1 further comprising after placing said call request in said queue for said first cell, when a radio channel becomes available in said first cell, allocating said radio channel to a call request in said queue for said first cell.
Claim 8
Dependent Claim
45 words
A method according to claim 1 further comprising after placing said call request in said queue for said second cell, when a radio channel becomes available in said second cell, allocating said radio channel to a call request in said queue for said second cell.
Claim 9
Dependent Claim
139 words
A method according to claim 1 wherein the plurality of radio channels serve a region of said first cell, said method further comprising after placing said call request in said queue for said first cell, when a radio channel becomes available in said first cell, determining the region of said first cell where said mobile station is located and determining whether the service region of said available radio channel is the same as the region of said first cell where said mobile station is located and in response to determining that the service region and the region where said mobile station is located are the same, allocating said available radio channel to said mobile station, completing a call connection with said mobile station for said call request, and removing said call request from said queue for said first cell.
Claim 10
Dependent Claim
66 words
The method of claim 9 further comprising in response to determining that the service region of said available radio channel is different from the region where said mobile station is located, sequentially traversing said queue for said first cell until an entry is reached specifying a region where a mobile station is located that is the same as the service region of said available radio channel.
Claim 11
Dependent Claim
70 words
A method according to claim 1 wherein said queue for said first cell comprises a plurality of queues, wherein the step of placing said call request in said queue for said first cell comprises determining a priority associated with said mobile station, and in response to said priority determination, placing said call request in one of said plurality of queues for said first call that corresponds to said determined priority.
Claim 12
Dependent Claim
119 words
A wireless telecommunications system for serving a plurality of cells, each of said cells using a plurality of radio channels for communication, said system comprising: memory means for storing a first queue for a first one of said cells and a second queue for a second one of said cells, means responsive to a call request from a mobile station in said first cell and the unavailability of radio channels in said first cell, for placing said call request in said first queue, and means responsive to movement of said mobile station from said first cell to said second cell and the unavailability of radio channels in said second cell, for placing said call request in said second queue.
Claim 13
Dependent Claim
29 words
A system according to claim 12, further comprising means responsive to movement of said mobile station from said first cell for removing said call request from said first queue.
Claim 14
Dependent Claim
31 words
A system according to claim 12, further comprising a plurality of cell site means each associated with one of said cells for transmitting and receiving radio signals within the associated cell.
Claim 15
Dependent Claim
44 words
A system according to claim 14, further comprising means responsive to receipt, by said cell site associated with said second cell, of a radio signal comprising an acknowledgement message for determining movement of said mobile station from said first cell to said second cell.
Claim 16
Dependent Claim
45 words
A system according to claim 12 further comprising means responsive to said call request in said first queue and a determination of availability of a radio channel in said first cell for allocating said available radio channel to a call request in said first queue.
Claim 17
Dependent Claim
77 words
In a wireless communication system, a method comprising the steps of: in response to entry of a directory number at a mobile station, sending an origination request to a wireless communication system from said mobile station including said directory number, in response to a message from said wireless communication system, said mobile station producing a signal indicating that said origination request has been placed in a queue, and sending an acknowledgement message to said wireless communication system.
Claim 18
Dependent Claim
35 words
The method of claim 17 wherein said step of sending an origination request is further in response to entry of a feature code at said mobile station and said origination request includes said feature code.
Claim 19
Dependent Claim
40 words
The method of claim 17 further including the step of receiving a channel assignment message and in response to said channel assignment message, tuning said mobile station to said channel and sending an acknowledge message to said wireless communication system.
References Cited (Backward Citations)
No citation records indexed.
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