US5867790A
Expired / Lapsed
US
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Radio communication system with enhanced connection processing
Assignee: Canon Inc
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Filing: 1995-07-27
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Granted: 1999-02-02
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Expires: 2015-07-27
Abstract
Abstract In a radio communication system, when an interconnection between radio terminal (PS) used for digital cordless telephones is performed, a connection destination terminal is discriminated in accordance with input information. If it s determined that the connection designation terminal is a terminal involved in the interconnection, a priority-monitor-target communication channel is figured out in accordance with a PS call number of the destination. When the priority-monitor-target communication channel is not used, transmission of call-origination control signal is started by using the idle priority-monitor-target communication channel. That is, the call-original control signal is transmitted by preferentially using the priority-monitor-target communication channel which is frequently monitored by the destination terminal.
Inventors
- 👤 Masashi Hamada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:37
CPC Classifications
H; H04; H04M; H04M1/00; H04M1/72; H04M1/725; H04M1/733; H04B; H04B17/00; H04B17/10; H04B17/15; H04B17/16; H04M1/72502; H04M1/72505; H04M1/72508; H04M1/72511; H04M1/72513; H04W; H04W76/00; H04W76/10; H04W48/00; H04W48/16; H04W72/00; H04W72/02
Claims Analysis
Total Claims: 46
Claim 1
Independent Claim
135 words
A radio communication system having a radio base station which accommodates a plurality of radio communication apparatuses in a radio communication area, and a plurality of radio communication apparatuses each of which is capable of performing first communication using a communication channel determined by using a control channel and second communication using a communication channel determined without using said control channel, wherein each of said plurality of radio communication apparatuses comprising: determination means for determining at least one specific communication channel to perform said second communication; and confirmation means for confirming states of a plurality of communication channels in such a manner that a number of times of confirming operation to confirm the specific communication channel, determined by said determination means, is greater than that of the other communication channels, for a predetermined time period.
Claim 2
Dependent Claim
135 words
A radio communication system having a radio base station which accommodates a plurality of radio communication apparatuses in a radio communication area, and a plurality of radio communication apparatuses each of which is capable of performing first communication using a communication channel determined by using a control channel and second communication using a communication channel determined without using said control channel, wherein each of said plurality of radio communication apparatuses comprising: determination means for determining at least one specific communication channel to perform said second communication; and confirmation means for confirming states of a plurality of communication channels in such a manner that a number of times of confirming operation to confirm the specific communication channel, determined by said determination means, is greater than that of the other communication channels, for a predetermined time period.
Claim 3
Dependent Claim
27 words
The system according to claim 1, wherein said confirmation means confirms the idle state of the specific communication channel in terms of a destination radio communication apparatus.
Claim 4
Dependent Claim
22 words
The system according to claim 1, wherein said determination means determines the specific communication channel in units of the radio communication apparatus.
Claim 5
Dependent Claim
28 words
The system according to claim 3, wherein said determination means determines the specific communication channel based on an identification code assigned to each of the radio communication apparatus.
Claim 6
Dependent Claim
39 words
The system according to claim 1, wherein when it is confirmed over a predetermined number of times that the specific communication channel is not idle, said confirmation means excludes the specific communication channel from a target to be confirmed.
Claim 7
Dependent Claim
29 words
The system according to claim 1, wherein said radio communication system performs a communication by a TDD (Time Division Duplex) method or a TDMA (Time Division Multiple Access)-TDD method.
Claim 8
Dependent Claim
18 words
The system according to claim 1, wherein said first communication is a communication via the radio base station.
Claim 9
Dependent Claim
32 words
The system according to claim 1, wherein said second communication is a communication realized by directly connecting one radio communication apparatus with another radio communication apparatus, not via the radio base station.
Claim 10
Dependent Claim
115 words
A radio communication apparatus comprising: communication means for performing first communication with another communication apparatus by using a communication channel determined by using a control channel, and second communication with another communication apparatus by using a communication channel determined without using the control channel; determination means for determining at least one specific communication channel from among a plurality of communication channels to perform said second communication; and confirmation means for confirming states of the plurality of communication channels in such a manner that a number of times of confirming operation to confirm the specific communication channel, determined by said determination means, is greater than that of the other communication channels, for a predetermined time period.
Claim 11
Dependent Claim
115 words
A radio communication apparatus comprising: communication means for performing first communication with another communication apparatus by using a communication channel determined by using a control channel, and second communication with another communication apparatus by using a communication channel determined without using the control channel; determination means for determining at least one specific communication channel from among a plurality of communication channels to perform said second communication; and confirmation means for confirming states of the plurality of communication channels in such a manner that a number of times of confirming operation to confirm the specific communication channel, determined by said determination means, is greater than that of the other communication channels, for a predetermined time period.
Claim 12
Dependent Claim
27 words
The apparatus according to claim 9, wherein said communication means confirms the idle state of the specific communication channel in terms of a destination radio communication apparatus.
Claim 13
Dependent Claim
22 words
The apparatus according to claim 9, wherein said determination means determines the specific communication channel in units of the radio communication apparatuses.
Claim 14
Dependent Claim
28 words
The apparatus according to claim 11, wherein said determination means determines the specific communication channel based on an identification code assigned to each of the radio communication apparatuses.
Claim 15
Dependent Claim
39 words
The apparatus according to claim 9, wherein when it is confirmed over a predetermined number of times that the specific communication channel is not idle, said confirmation means excludes the specific communication channel from a target to be confirmed.
Claim 16
Dependent Claim
29 words
The apparatus according to claim 9, wherein said radio communication apparatus performs a communication by a TDD (Time Division Duplex) method or a TDMA (Time Division Multiple Access)-TDD method.
Claim 17
Dependent Claim
24 words
The apparatus according to claim 9, wherein said first communication is a communication via the radio base station which accommodates a radio communication apparatus.
Claim 18
Dependent Claim
32 words
The apparatus according to claim 9, wherein said second communication is a communication realized by directly contacting one radio communication apparatus with another radio communication apparatus, not via the radio base station.
Claim 19
Dependent Claim
131 words
A control method of a radio communication system having a radio base station which accommodates a plurality of radio communication apparatuses in a radio communication area, and a plurality of radio communication apparatuses each of which is capable of performing first communication using a communication channel determined by using a control channel and second communication using a communication channel determined without using said control channel, wherein said control method comprising the steps of: determining at least one specific communication channel to perform said second communication; and confirming states of a plurality of communication channels in such a manner that a number of times of confirming operation to confirm the specific communication channel, determined by said determination means, is greater than that of the other communication channels, for a predetermined time period.
Claim 20
Dependent Claim
131 words
A control method of a radio communication system having a radio base station which accommodates a plurality of radio communication apparatuses in a radio communication area, and a plurality of radio communication apparatuses each of which is capable of performing first communication using a communication channel determined by using a control channel and second communication using a communication channel determined without using said control channel, wherein said control method comprising the steps of: determining at least one specific communication channel to perform said second communication; and confirming states of a plurality of communication channels in such a manner that a number of times of confirming operation to confirm the specific communication channel, determined by said determination means, is greater than that of the other communication channels, for a predetermined time period.
Claim 21
Dependent Claim
31 words
The method according to claim 17, wherein the confirmation step includes the step of confirming the idle state of the specific communication channel in terms of the destination radio communication apparatus.
Claim 22
Dependent Claim
32 words
The method according to claim 17, wherein the determination step includes the step of determining the specific communication channel based on an identification code assigned to each of the radio communication apparatus.
Claim 23
Dependent Claim
32 words
The method according to claim 17, wherein the determination step includes the step of determining the specific communication channel based on an identification code assigned to each of the radio communication apparatus.
Claim 24
Dependent Claim
43 words
The method according to claim 17, wherein the confirmation step includes the step of excluding the specific communication channel from a target to be confirmed, when it is confirmed over a predetermined number of times that the specific communication channel is not idle.
Claim 25
Dependent Claim
19 words
The method according to claim 17, wherein said first communication is a first communication via the radio base station.
Claim 26
Dependent Claim
32 words
The method according to claim 17, wherein said second communication is a communication realized by directly connecting one radio communication apparatus with another radio communication apparatus, not via the radio base station.
Claim 27
Dependent Claim
118 words
A radio communication method of a radio communication apparatus which is capable of performing first communication with another communication apparatus by using a communication channel determined by using a control channel, and second communication with another communication apparatus by using a communication channel determined without using the control channel, comprising the steps of: determining at least one specific communication channel from among a plurality of communication channels to perform said second communication; and confirming states of the plurality of communication channels in such a manner that a number of times of confirming operation to confirm the specific communication channel, determined by said determination means, is greater than that of the other communication channels, for a predetermined time period.
Claim 28
Dependent Claim
118 words
A radio communication method of a radio communication apparatus which is capable of performing first communication with another communication apparatus by using a communication channel determined by using a control channel, and second communication with another communication apparatus by using a communication channel determined without using the control channel, comprising the steps of: determining at least one specific communication channel from among a plurality of communication channels to perform said second communication; and confirming states of the plurality of communication channels in such a manner that a number of times of confirming operation to confirm the specific communication channel, determined by said determination means, is greater than that of the other communication channels, for a predetermined time period.
Claim 29
Dependent Claim
31 words
The method according to claim 24, wherein the confirmation step includes the step of confirming the idle state of the specific communication channel in terms of the destination radio communication apparatus.
Claim 30
Dependent Claim
26 words
The method according to claim 24, wherein the determining step includes the step of determining the specific communication channel in units of the radio communication apparatuses.
Claim 31
Dependent Claim
32 words
The method according to claim 26, wherein the determination step includes the step of determining the specific communication channel based on an identification code assigned to each of the radio communication apparatuses.
Claim 32
Dependent Claim
43 words
The method according to claim 24, wherein the confirmation step includes the step of excluding the specific communication channel from a target to be confirmed when it is confirmed over a predetermined number of times that the specific communication channel is not idle.
Claim 33
Dependent Claim
18 words
The method according to claim 24, wherein said first communication is a communication via the radio base station.
Claim 34
Dependent Claim
32 words
The method according to claim 24, wherein said second communication is a communication realized by directly connecting one radio communication apparatus with another radio communication apparatus, not via the radio base station.
Claim 35
Dependent Claim
104 words
A radio communication apparatus, having identifying information for discriminating the radio communication apparatus, which is capable of performing first communication with another radio communication apparatus by using a communication channel determined by using a control channel, and second communication with the other radio communication apparatus by using a communication channel determined by without using said control channel, said radio communication apparatus comprising: determination means for determining a specific communication channel for said second communication based on the identifying information for the radio communication apparatus; and confirming means for confirming the specific communication channel, determined by said determination means, preferentially to the other communication channels.
Claim 36
Dependent Claim
104 words
A radio communication apparatus, having identifying information for discriminating the radio communication apparatus, which is capable of performing first communication with another radio communication apparatus by using a communication channel determined by using a control channel, and second communication with the other radio communication apparatus by using a communication channel determined by without using said control channel, said radio communication apparatus comprising: determination means for determining a specific communication channel for said second communication based on the identifying information for the radio communication apparatus; and confirming means for confirming the specific communication channel, determined by said determination means, preferentially to the other communication channels.
Claim 37
Dependent Claim
25 words
The apparatus according to claim 31, wherein said determination means determines the specific communication channel based on identifying information assigned to the other communication apparatus.
Claim 38
Dependent Claim
18 words
The apparatus according to claim 31, wherein said confirmation means confirms an idle state of a communication channel.
Claim 39
Dependent Claim
38 words
The apparatus according to claim 33, wherein said confirmation means excludes the specific communication channel from the confirming operation if said confirmation means cannot confirm idle state of the specific communication channel for a predetermined number of times.
Claim 40
Dependent Claim
24 words
The apparatus according to claim 31, wherein said apparatus performs communication by a TDD (Time Division Duplex) or TDMA (Time Division Multiple Access) method.
Claim 41
Dependent Claim
104 words
A control method of a radio communication apparatus, having identifying information for discriminating the radio communication apparatus, which is capable of performing first communication with another radio communication apparatus by using a communication channel determined by using a control channel, and second communication with the other communication apparatus by using a communication channel determined without using said control channel, said control channel method comprising the steps of: determining a specific communication channel for said second communication based on the identification information for discriminating the radio communication apparatus; and preferentially conforming the specific communication channel, determined in said determining step, to the other communication channels.
Claim 42
Dependent Claim
104 words
A control method of a radio communication apparatus, having identifying information for discriminating the radio communication apparatus, which is capable of performing first communication with another radio communication apparatus by using a communication channel determined by using a control channel, and second communication with the other communication apparatus by using a communication channel determined without using said control channel, said control channel method comprising the steps of: determining a specific communication channel for said second communication based on the identification information for discriminating the radio communication apparatus; and preferentially conforming the specific communication channel, determined in said determining step, to the other communication channels.
Claim 43
Dependent Claim
25 words
The method according to claim 36, wherein said determination means determines the specific communication channel based on identifying information assigned to the other communication apparatus.
Claim 44
Dependent Claim
18 words
The method according to claim 36, wherein said confirmation means confirms an idle state of a communication channel.
Claim 45
Dependent Claim
38 words
The method according to claim 38, wherein said confirmation means excludes the specific communication channel from the confirming operation if said confirmation means cannot confirm idle state of the specific communication channel for a predetermined number of times.
Claim 46
Dependent Claim
24 words
The method according to claim 36, wherein said apparatus performs communications by a TDD (Time Division Duplex) or TDMA (Time Division Multiple Access) method.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-02-01 | 2002-08-03 | 2003-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-02-01 | 2006-08-03 | 2007-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-02-01 | 2010-08-03 | 2011-02-02 | $7700.00 | Window Closed / Lapsed |