US5535205A
Expired / Lapsed
US
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Cell station and personal stations in a digital radio communication system
Assignee: Panasonic Holdings Corp
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Filing: 1995-04-06
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Granted: 1996-07-09
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Expires: 2015-04-06
Abstract
Abstract A cell station and a personal station at a sender's end in the cell station's radio zone which carry out digital radio communication and monitors whether wave condition is good or bad by calculating a generation rate of errors. When the wave condition is good, data links are established between the cell station and the personal station at the sender's end, and between the cell station and the personal station at the opposite end. Information signals are sent and received through the data links. When the wave condition is good, control delay by processing of layer 2 can be prevented. (Effect) The speed of the digital radio communication increases while the reliability of sending and receiving information signals is ensured.
Inventors
- 👤 Seiji Horii
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:10
CPC Classifications
H; H04; H04L; H04L1/00; H04L1/20; H04B; H04B7/00; H04B7/24; H04B7/26; H04B7/2643
Claims Analysis
Total Claims: 38
Claim 1
Independent Claim
312 words
A cell station for relaying communication between a first personal station and a second personal station in a digital radio communication system, the digital radio communication system having a plurality of personal stations and the cell station, comprising: a first sending and receiving means for sending and receiving frames to and from the first personal station; a second sending and receiving means for sending and receiving frames to and from the second personal station; a first data link means for controlling a data link when the frames are sent and received to and from the first sending and receiving means and the first personal station by application of a transmit control procedure including error correction/detection control and frame re-transmit control for transmit errors; a second data link means for controlling a data link when the frames are sent and received to and from the second sending and receiving means and the second personal station by the application of the transmit control procedure including error correction/detection control and frame re-transmit control for transmit errors; a relay means for translating the frames alternatively between the first sending and receiving means and the second sending and receiving means; a switch judgement means for judging whether application of the transmit control procedure should be stopped or resumed, according to the condition of the frame sending and receiving between the first sending and receiving means and the first personal station, and between the second sending and receiving means and the second personal station; and a control means for controlling the first and the second data link means to stop application of the transmit control procedure when the switch judgement means judges the application of the transmit control procedure should be stopped, and to resume the application of the transmit control unit when the switch judgement means judges the application of the transmit control procedure should be resumed.
Claim 2
Dependent Claim
312 words
A cell station for relaying communication between a first personal station and a second personal station in a digital radio communication system, the digital radio communication system having a plurality of personal stations and the cell station, comprising: a first sending and receiving means for sending and receiving frames to and from the first personal station; a second sending and receiving means for sending and receiving frames to and from the second personal station; a first data link means for controlling a data link when the frames are sent and received to and from the first sending and receiving means and the first personal station by application of a transmit control procedure including error correction/detection control and frame re-transmit control for transmit errors; a second data link means for controlling a data link when the frames are sent and received to and from the second sending and receiving means and the second personal station by the application of the transmit control procedure including error correction/detection control and frame re-transmit control for transmit errors; a relay means for translating the frames alternatively between the first sending and receiving means and the second sending and receiving means; a switch judgement means for judging whether application of the transmit control procedure should be stopped or resumed, according to the condition of the frame sending and receiving between the first sending and receiving means and the first personal station, and between the second sending and receiving means and the second personal station; and a control means for controlling the first and the second data link means to stop application of the transmit control procedure when the switch judgement means judges the application of the transmit control procedure should be stopped, and to resume the application of the transmit control unit when the switch judgement means judges the application of the transmit control procedure should be resumed.
Claim 3
Dependent Claim
129 words
The cell station of claim 1, wherein the control means includes: a flag hold means for holding a flag for showing the application of the transmit control procedure when it is on, and showing stop of the application when it is off; a stop means for controlling the first and the second data link means to stop the application of the transmit control procedure when the switch judgement means judges the application of the transmit control procedure should be stopped, and turning the flag off; and a resume means for controlling the first and the second data link means to resume the application of the transmit control procedure when the switch judgement means judges the application of the transmit control procedure should be resumed, and turning the flag on.
Claim 4
Dependent Claim
91 words
The cell station of claim 2, wherein the switch judgement means includes: a monitor means for monitoring a generation rate of communication errors corresponding to deterioration of the condition of the frame sending and receiving; a threshold value hold means for holding a predetermined threshold value; and a judgement means for comparing the generation rate and the threshold value, judging that the application of the transmit control procedure should be stopped when the generation rate is lower, and judging that the application should be resumed when the generation rate is higher.
Claim 5
Dependent Claim
165 words
The cell station of claim 3, wherein the stop means includes: a disconnection demand sending control means for making the first and the second sending and receiving means send a demand to disconnect data links between the first personal station and the cell station, and between the second personal station and the cell station to the first and the second personal stations; a data link disconnection control means for controlling the first and the second data link means to disconnect the data links between the first personal station and the cell station, and the second personal station and the cell station after the demand to disconnect the data link is sent; a flag switch means for turning the flag off when the data link is disconnected by the data link disconnection means; and wherein the first and the second data link means disconnects the data links between the first personal station and the cell station, and between the cell station and the second personal station.
Claim 6
Dependent Claim
70 words
The cell station of claim 4, wherein the stop means further includes: an establishment demand sending control means for making the first and the second sending and receiving means send a demand to establish a data link between the first personal station and the second personal station to the first and the second personal station, after the disconnection demand sending control means sends the demand to disconnect the data link.
Claim 7
Dependent Claim
55 words
The cell station of claim 5, wherein the transmit control procedure is an HDLC, which is a High-level Data Link Control Procedure; and the first and the second data link means sends a DISC, which is a disconnect command, to the first and the second personal station, according to the data link disconnection control means.
Claim 8
Dependent Claim
52 words
The cell station in claim 6, wherein the first and the second data link means sends a UA, which is an Unnumbered Acknowledgement Response, to the first personal station and the DISC to the second personal station when the DISC is sent from one of the first and the second personal station.
Claim 9
Dependent Claim
164 words
The cell station in claim 2, wherein the switch judgement means includes: a demand detection means for detecting one of a demand to resume and a demand to stop the application of the transmit control procedure included in the frames from the first and the second personal station; a judgement means for judging that the application of the transmit control procedure should be stopped when the demand to stop the application is included in the frame, and judging that the application of the transmit control procedure should be resumed when the demand to resume the application is included in the frame; and the first and the second personal station send the demand to stop the application of the transmit control procedure to the cell station when the condition of the frame sending and receiving is good, and send the demand to resume the application of the transmit control procedure to the cell station when the condition of the frame sending and receiving is bad.
Claim 10
Dependent Claim
80 words
The cell station of claim 8, wherein the digital radio communication system is a PHS, which is a Personal Handy Phone System, of a TDMA/TDD technique; the demand to stop the application of the transmit control procedure is sent by using one of an SACCH and a FACCH, which are standardized in the PHS; and the demand detection means detects the demand to stop the application of the transmit control procedure included in one of the SACCH and the FACCH.
Claim 11
Dependent Claim
165 words
The cell station of claim 9, wherein the stop means includes: a disconnection demand sending control means for making the first and the second sending and receiving means send a demand to disconnect data links between the first personal station and the cell station, and between the second personal station and the cell station to the first and the second personal stations; a data link disconnection control means for controlling the first and the second data link means to disconnect the data links between the first personal station and the cell station, and the second personal station and the cell station after the demand to disconnect the data link is sent; a flag switch means for turning the flag off when the data link is disconnected by the data link disconnection means; and wherein the first and the second data link means disconnects the data links between the first personal station and the cell station, and between the cell station and the second personal station.
Claim 12
Dependent Claim
70 words
The cell station of claim 10, wherein the stop means further includes: an establishment demand sending control means for making the first and the second sending and receiving means send a demand to establish a data link between the first personal station and the second personal station to the first and the second personal station, after the disconnection demand sending control means sends the demand to disconnect the data link.
Claim 13
Dependent Claim
55 words
The cell station of claim 11, wherein the transmit control procedure is an HDLC, which is a High-level Data Link Control Procedure; and the first and the second data link means sends a DISC, which is a disconnect command, to the first and the second personal station, according to the data link disconnection control means.
Claim 14
Dependent Claim
52 words
The cell station of claim 12, wherein the first and the second data link means sends a UA, which is an Unnumbered Acknowledgement Response, to the first personal station and the DISC to the second personal station when the DISC is sent from one of the first and the second personal station.
Claim 15
Dependent Claim
91 words
The cell station of claim 2, wherein the switch judgement means includes: a monitor means for monitoring a generation rate of communication errors corresponding to deterioration of the condition of the frame sending and receiving; a threshold value hold means for holding a predetermined threshold value; and a judgement means for comparing the generation rate and the threshold value, judging that the application of the transmit control procedure should be stopped when the generation rate is lower, and judging that the application should be resumed when the generation rate is higher.
Claim 16
Dependent Claim
134 words
The cell station of claim 14, wherein the resume means includes: a disconnection demand sending control means for making the first and the second sending and receiving means send a demand to disconnect a data link between the first personal station and the second personal station to the first and the second personal station when the switch judgement means judges the application of the transmit control procedure should be resumed; a flag switch means for turning the flag on when the disconnection demand sending control means sends the demand to disconnect the data link; and wherein the data link between the first personal station and the second personal station is already established by the first and the second personal station, after the application of the transmit control procedure is stopped by the stop means.
Claim 17
Dependent Claim
62 words
The cell station of claim 15, wherein the resume means further includes: an establishment demand sending control means for controlling the first and the second data link means to establish the data links between the first personal station and the cell station, and between the second personal station and the cell station, after the demand to disconnect the data links is sent.
Claim 18
Dependent Claim
49 words
The cell station in claim 16, wherein the transmit control procedure is the HDLC; and the first and the second data link means send an SABM, which is a Set Asynchronous Balanced Mode, to the first and the second personal station, according to the establishment demand sending control means.
Claim 19
Dependent Claim
46 words
The cell station in claim 17, wherein the first and the second data link means send the UA to the first personal station and the SABM to the second personal station, when the SABM is sent from one of the first and the second personal station.
Claim 20
Dependent Claim
164 words
The cell station of claim 2, wherein the switch judgement means includes: a demand detection means for detecting one of a demand to resume and a demand to stop the application of the transmit control procedure included in the frames from the first and the second personal station; a judgement means for judging that the application of the transmit control procedure should be stopped when the demand to stop the application is included in the frame, and judging that the application of the transmit control procedure should be resumed when the demand to resume the application is included in the frame; and the first and the second personal station send the demand to stop the application of the transmit control procedure to the cell station when the condition of the frame sending and receiving is good, and send the demand to resume the application of the transmit control procedure to the cell station when the condition of the frame sending and receiving is bad.
Claim 21
Dependent Claim
80 words
The cell station of claim 19, wherein the digital radio communication system is a PHS, which is a Personal Handy Phone System, of a TDMA/TDD technique; the demand to resume the application of the transmit control procedure is sent by using one of an SACCH and a FACCH, which are standardized in the PHS; and the demand detection means detects the demand to resume the application of the transmit control procedure included in one of the SACCH and the FACCH.
Claim 22
Dependent Claim
95 words
The cell station of claim 20, wherein the resume means includes: a disconnection demand sending control means for making the first and the second sending and receiving means send a demand to disconnect a data link between the first personal station and the second personal station to the first and the second personal station when the switch judgement means judges the application of the transmit control procedure should be resumed; and a flag switch means for turning the flag on when the disconnection demand sending control means sends the demand to disconnect the data link.
Claim 23
Dependent Claim
62 words
The cell station in claim 21, wherein the resume means further includes: an establishment demand sending control means for controlling the first and the second data link means to establish the data links between the first personal station and the cell station, and between the second personal station and the cell station, after the demand to disconnect the data links is sent.
Claim 24
Dependent Claim
49 words
The cell station of claim 22, wherein the transmit control procedure is the HDLC; and the first and the second data link means send an SABM, which is a Set Asynchronous Balanced Mode, to the first and the second personal station, according to the establishment demand sending control means.
Claim 25
Dependent Claim
46 words
The cell station of claim 23, wherein the first and the second data link means send the UA to the first personal station and the SABM to the second personal station, when the SABM is sent from one of the first and the second personal station.
Claim 26
Dependent Claim
134 words
A personal station for digital radio communication relayed by a cell station, the digital radio communication system having a plurality of personal stations and the cell station, comprising: a sending and receiving means for sending and receiving frames to and from an other personal station relayed by the cell station; a data link means for applying a transmit control procedure to the frame sending and receiving between the sending and receiving means and the cell station; a monitor means for monitoring a generation rate of communication errors in the received frames by the sending and receiving means; and a control means for making the sending and receiving means send a demand to stop application of the transmit control procedure to the cell station when the generation rate is lower than a predetermined threshold value.
Claim 27
Dependent Claim
134 words
A personal station for digital radio communication relayed by a cell station, the digital radio communication system having a plurality of personal stations and the cell station, comprising: a sending and receiving means for sending and receiving frames to and from an other personal station relayed by the cell station; a data link means for applying a transmit control procedure to the frame sending and receiving between the sending and receiving means and the cell station; a monitor means for monitoring a generation rate of communication errors in the received frames by the sending and receiving means; and a control means for making the sending and receiving means send a demand to stop application of the transmit control procedure to the cell station when the generation rate is lower than a predetermined threshold value.
Claim 28
Dependent Claim
86 words
The personal station in claim 25, wherein the control means includes: a demand detection means for detecting a demand to disconnect the data link between the personal station and the cell station included in the frame from the cell station, the demand being included in the frame from the cell station; a data link disconnection control means for controlling the data link means to disconnect the data link between the personal station and the cell station after the demand to disconnect the data link is detected.
Claim 29
Dependent Claim
52 words
The personal station in claim 26, wherein the control means further includes: a data link establishment control means for controlling the data link means to establish a data link between the cell station and the other personal station, when the data link between the personal station and the cell station is disconnected.
Claim 30
Dependent Claim
35 words
The personal station in claim 27, wherein the transmit control procedure is the HDLC; and the data link means sends the UA to the cell station after the DISC is sent from the cell station.
Claim 31
Dependent Claim
34 words
The personal station in claim 28, wherein the data link means sends the DISC to the cell station and receives the UA from the cell station, according to the data link disconnection control means.
Claim 32
Dependent Claim
66 words
The personal station of claim 29, wherein the digital radio communication system is the PHS using the TDMA/TDD technique; the demand to stop the application of the transmit control procedure is sent by one of the SACCH and the FACCH; and the demand detection means detects the demand to stop the application of the transmit control procedure included in one of the SACCH and the FACCH.
Claim 33
Dependent Claim
52 words
The personal station of claim 25, wherein the control means further includes: a resume demand sending control means for making the sending and receiving means send a demand to resume the application of the transmit control procedure to the cell station, when the generation rate is higher than the predetermined threshold value.
Claim 34
Dependent Claim
102 words
The personal station of claim 31, wherein the demand detection means detects the demand to disconnect the data link between the personal station at both ends included in the frame from the cell station; and the data link disconnection control means controls the data link means to disconnect the data link between the personal station at both ends, after the demand to disconnect the data link is sent; and the data link between the personal station at both ends is already established by personal station at both ends, after the application of the transmit control procedure is stopped at the cell station.
Claim 35
Dependent Claim
50 words
The personal station of claim 32, wherein the control means further includes: a data link re-establishment control means for controlling the data link means to establish the data link between the personal station and the cell station, when the data link between the personal station at both ends is disconnected.
Claim 36
Dependent Claim
33 words
The personal station of claim 33, wherein the transmit control procedure is the HDLC; and the data link means sends the UA to the cell station, after the cell station sends the SABM.
Claim 37
Dependent Claim
26 words
The personal station of claim 34, wherein the data link means sends the SABM to the cell station, according to the data link disconnection control means.
Claim 38
Dependent Claim
66 words
The personal station of claim 35, wherein the digital radio communication system is the PHS of the TDMA/TDD techniques; the demand to resume the application of the transmit control method is sent by one of the SACCH and the FACCH; and the demand detect means detects the demand to resume the application of the transmit control procedure included in one of the SACCH and the FACCH.
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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) | 1999-07-09 | 2000-01-08 | 2000-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-07-09 | 2004-01-08 | 2004-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-07-09 | 2008-01-08 | 2008-07-09 | $7700.00 | Window Closed / Lapsed |