Patent US6240459B1 successfully refreshed from Google Patents.
EP0831669A2
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EP
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Load control method and apparatus for CDMA cellular system having circuit and packet switched terminals
Assignee: Nokia Oyj
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Filing: 1997-09-15
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Granted: —
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Expires: 2017-09-15
Abstract
Abstract A method for operating a cellular communications system of a type that includes a first type of terminal having real-time transmission needs and a second type of terminal having nonreal-time transmission needs. The method includes the steps of (a) determining at periodic intervals a total amount of capacity required to service the first type of terminals; (b) subtracting the determined amount from a current maximum capacity; and (c) allocating all or some of the remaining capacity, if any, to one or more of the second type of terminals.
Inventors
- 👤 Ismo Kokko
- 👤 Kari Rikkinen
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-25 04:00
CPC Classifications
H; H04; H04W; H04W28/00; H04W28/02; H04W28/10; H04W28/14; H04B; H04B2201/00; H04B2201/69; H04B2201/707; H04B2201/70707; H04B2201/70709; H04W72/00; H04W72/12; H04W72/1221; H04W76/00; H04W76/10; H04W84/00; H04W84/02; H04W84/04; H04W84/042
Claims Analysis
Total Claims: 33
Claim 1
Independent Claim
83 words
A method for operating a cellular communications system of a type that
includes a first type of terminal having real-time transmission needs and a second type
of terminal having nonreal-time transmission needs, comprising the steps of: determining at periodic intervals a total amount of capacity required to service
the first type of terminals; subtracting the determined amount from a current maximum capacity; and allocating all or some of the remaining capacity, if any, to one or more of the
second type of terminals.
Claim 2
Dependent Claim
25 words
A method as set forth in claim 1, wherein the maximum capacity is a function of
a maximum reverse traffic channel capacity of a cell.
Claim 3
Dependent Claim
31 words
A method as set forth in claim 2, wherein the maximum reverse traffic channel
capacity of a cell is a function of communications traffic loading in at least one
adjacent cell.
Claim 4
Independent Claim
21 words
A method as set forth in any preceding claim, wherein the periodic intervals are
frame intervals of a reverse traffic channel.
Claim 5
Independent Claim
27 words
A method as set forth in any preceding claim, wherein the step of determining
includes a step of receiving transmission requests from said second type of terminals.
Claim 6
Dependent Claim
43 words
A method as set forth in claim 5, wherein the step of receiving includes a
preliminary step of transmitting a transmission request from a given one of the second
type of terminals, the transmission request including information for specifying a
desired transmission rate.
Claim 7
Dependent Claim
23 words
A method as set forth in claim 6, wherein the transmission request further
includes information for specifying a priority of the transmission request.
Claim 8
Dependent Claim
35 words
A method as set forth in claim 5, 6 or 7, wherein the step of allocating includes
a step of transmitting a permission to transmit to a requesting one of the second type
of terminals.
Claim 9
Dependent Claim
55 words
A method as set forth in claim 6 or any claim depending therefrom, wherein the
step of transmitting is initiated upon an occurrence of at least one of a predetermined
number of packets being stored in a memory of said second type of terminal or a
packet being stored for a predetermined period of time.
Claim 10
Independent Claim
45 words
A method as set forth in any one of claims 5 to 9, wherein the step of allocating
allocates the remaining capacity, if any, to one or more of the second type of terminals
in accordance with an order of receipt of the transmission requests.
Claim 11
Independent Claim
34 words
A method as set forth in any one of claims 5 to 9, wherein the step of allocating
allocates the remaining capacity, if any, to all requesting ones of the second type of
terminals.
Claim 12
Independent Claim
41 words
A method as set forth in any one of claims 7 to 9, wherein the step of allocating
allocates the remaining capacity, if any, to requesting ones of the second type of
terminals in accordance with the priority of the requests.
Claim 13
Independent Claim
40 words
A method as set forth in any one of claims 4 to 9, wherein the step of allocating
allocates the remaining capacity, if any, to requesting ones of the second type of
terminals for a plurality of consecutive frame intervals.
Claim 14
Independent Claim
41 words
A method as set forth in any one of claims 4 to 9, wherein the step of allocating
allocates the remaining capacity, if any, to requesting ones of the second type of
terminals on a frame interval by frame interval basis.
Claim 15
Independent Claim
73 words
A method as set forth in any one of claims 4 to 9, wherein the step of allocating
includes a step of assigning a data transmission rate to requesting ones of the second
type of terminals, wherein one of the assigned transmission rates is zero bits per
second, and wherein a second type of terminal that is assigned a zero bits per second
transmission rate does not transmit during a next frame interval.
Claim 16
Independent Claim
32 words
A method as set forth in any preceding claim, wherein the step of allocating
includes a step of assigning a data transmission rate to requesting ones of the second
type of terminals.
Claim 17
Dependent Claim
159 words
A cellular communications system of a type that includes at least one base
station, a first type of terminal having real-time transmission requirements, and a
second type of terminal having nonreal-time transmission requirements, said first and
second terminals being bidirectionally coupled to said base station through RF links,
comprising: a load monitor module in said base station for determining, at predetermined
intervals, a total reverse link load of a cell served by said base station and a
total amount of capacity required to service the first type of terminals, said load
monitor module subtracting the total amount of capacity to service the first type
of terminals from the total reverse link load for determining a total remaining
capacity; and a load control module coupled to said load monitor module and, responsive to
said determined total remaining capacity, for allocating all or some of the total
remaining capacity, if any, to one or more of the second type of terminals.
Claim 18
Dependent Claim
30 words
A system as set forth in claim 17, wherein the total reverse link load of the cell
is a function of communications traffic loading in at least one adjacent cell.
Claim 19
Dependent Claim
22 words
A system as set forth in claim 17 or 18, wherein the periodic intervals are frame
intervals of a reverse traffic channel.
Claim 20
Dependent Claim
63 words
A system as set forth in claim 17, 18 or 19, wherein the base station further
comprises receivers for receiving transmission requests from said second type of
terminals, and wherein the base station further comprises a transmitter for transmitting
a permission to transmit to a requesting one of the second type of terminals, the
permission to transmit including an assigned data transmission rate.
Claim 21
Dependent Claim
38 words
A system as set forth in claim 20, wherein at least the second type of terminals
are each comprised of a transmitter for transmitting a transmission request, the
transmission request including information for specifying a desired transmission rate.
Claim 22
Dependent Claim
23 words
A system as set forth in claim 21, wherein the transmission request further
includes information for specifying a priority of the transmission request.
Claim 23
Dependent Claim
58 words
A system as set forth in claim 20, 21 or 22, wherein at least the second type of
terminals transmit the transmission request upon an occurrence of at least one of a
predetermined number of packets being stored in a memory of said second type of
terminal or a packet being stored for a predetermined period of time.
Claim 24
Dependent Claim
44 words
A system as set forth in claim 20, 21, 22 or 23, wherein said load control
module allocates the remaining capacity, if any, to one or more of the second type of
terminals in accordance with an order of receipt of the transmission requests.
Claim 25
Dependent Claim
33 words
A system as set forth in claim 20, 21, 22 or 23, wherein said load control
module allocates the remaining capacity, if any, to all requesting ones of the second
type of terminals.
Claim 26
Dependent Claim
38 words
A system as set forth in claim 22 or 23, wherein said load control module
allocates the remaining capacity, if any, to requesting ones of the second type of
terminals in accordance with the priority of the requests.
Claim 27
Dependent Claim
40 words
A system as set forth in claim 19, 20, 21, 22 or 23, wherein said load control
module allocates the remaining capacity, if any, to requesting ones of the second type
of terminals for a plurality of consecutive frame intervals.
Claim 28
Dependent Claim
41 words
A system as set forth in claim 19, 20, 21, 22 or 23, wherein said load control
module allocates the remaining capacity, if any, to requesting ones of the second type
of terminals on a frame interval by frame interval basis.
Claim 29
Independent Claim
33 words
A system as set forth in any one of claims 17 to 28, wherein said load control
module further assigns a data transmission rate to requesting ones of the second type
of terminals.
Claim 30
Independent Claim
69 words
A system as set forth in any one of claims 19 to 29, wherein said load control
module assigns a data transmission rate to requesting ones of the second type of
terminals, wherein one of the assigned transmission rates is zero bits per second, and
wherein a second type of terminal that is assigned a zero bits per second transmission
rate does not transmit during a next frame interval.
Claim 31
Independent Claim
25 words
A system as set forth in any one of claims 17 to 30, wherein said system is a
direct sequence, code division multiple access system.
Claim 32
Dependent Claim
150 words
A DS-CDMA cellular communications system of a type that includes at least
one base station, a first type of terminal operating with circuit switched transmissions,
and a second type of terminal operating with packet switched transmissions,
comprising: a load monitor module in said at least one base station for determining, at
predetermined intervals, a total reverse link load of a cell served by said base
station and a total amount of capacity required to service the first type of
terminals, said load monitor module subtracting the total amount of capacity to
service the first type of terminals from the total reverse link load for determining
a total remaining capacity; and a load control module coupled to said load monitor module and, responsive to
said determined total remaining capacity, for allocating all or some of the total
remaining capacity, if any, to one or more of the second type of terminals.
Claim 33
Dependent Claim
30 words
A system as set forth in claim 32, wherein the total reverse link load of the cell
is a function of communications traffic loading in at least one adjacent cell.
References Cited (Backward Citations)
No citation records indexed.
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