WO1997024895B1 - Method and apparatus for improved control over cellular systems - Google Patents

Method and apparatus for improved control over cellular systems

Info

Publication number
WO1997024895B1
WO1997024895B1 PCT/US1996/020901 US9620901W WO9724895B1 WO 1997024895 B1 WO1997024895 B1 WO 1997024895B1 US 9620901 W US9620901 W US 9620901W WO 9724895 B1 WO9724895 B1 WO 9724895B1
Authority
WO
WIPO (PCT)
Prior art keywords
wireless communications
transmission characteristics
ones
communication
optimizing
Prior art date
Application number
PCT/US1996/020901
Other languages
French (fr)
Other versions
WO1997024895A3 (en
WO1997024895A2 (en
Filing date
Publication date
Priority claimed from US08/582,525 external-priority patent/US5884147A/en
Application filed filed Critical
Priority to AU15695/97A priority Critical patent/AU1569597A/en
Priority to IL12527596A priority patent/IL125275A0/en
Publication of WO1997024895A2 publication Critical patent/WO1997024895A2/en
Publication of WO1997024895A3 publication Critical patent/WO1997024895A3/en
Publication of WO1997024895B1 publication Critical patent/WO1997024895B1/en

Links

Abstract

System and apparatus for actively managing calls in a wireless cellular network. A host receives input data from a plurality of cells regarding the status of calls in that cell. Input data may include call variables such as carrier signal strength over interference (C/I), forward and reverse link power, beam and channel assignments, handoff status, and triangulation data regarding location/movement of active calls. The host processes the input data with reference to known cell neighborhoods, and creates output data for each cell that includes information on other active calls in the neighborhood. The output data then updates the cell with information regarding active calls in the cell's vicinity. The cell may then make adjustments to call variables taking into account local interference conditions. Further, through reference to (1) fixed data regarding the network such as topography or statistics, and/or (2) immediate past historical data regarding active calls, the host may also create output data taking into account predicted impending interference conditions.

Claims

AMENDED CLAIMS
[received by the International Bureau on 20 January 1998 (20.01.98); original claims 6 and 19 cancelled; original claims 1 and 14 amended ; remaining claims unchanged (6 pages)]
1. A method for managing a plurality of wireless communications within a cellular network, comprising the steps of: monitoring the transmission characteristics of ones of the wireless communications; and optimizing the transmission characteristics of wireless communications according to monitored transmission characteristics of nearby wireless communications; wherein said optimizing step further comprises the steps of: modifying ones of the transmission characteristics so as to allow ones of the wireless communications to continue at artificially sub-optimum transmission conditions for the sake of improving transmission conditions for other wireless communications; and temporarily blocking ones of the wireless communications if the articially sub-optimum transmission conditions are not feasible for wireless communications.
36
2. The method of claim 1, wherein the step of monitoring wireless communication transmission characteristics includes monitoring for one or more transmission characteristics selected from the group consisting of:
(a) communication signal strength;
(b) communication interference level;
(c) forward link signal power;
(d) reverse link signal power; (e) cell assignment;
(f) antenna beam assignment;
(g) communication channel assignment; (h) handoff status;
(i) territorial location of wireless communications within the cells;
(j) directional travel of mobile wireless communications within the cells; and (k) velocity of mobile wireless communications within the cells.
3. The method of claim 1, wherein the step of optimizing wireless communication transmission characteristics includes modifying one or more transmission characteristics selected from the group consisting of:
(a) communication signal strength;
(b) forward link signal power;
(c) reverse link signal power;
(d) cell assignment; (e) antenna beam assignment;
(f) communication channel assignment; and
(g) handoff status.
4. The method of claim 1, wherein the step of monitoring wireless communication transmission characteristics is performed centrally.
5. The method of claim 4, wherein the step of optimizing wireless communication transmission characteristics is also performed centrally.
6. Canceled.
38
14. A system for managing a plurality of wireless communications within a cellular network, comprising: means for monitoring the transmission characteristics of ones of the wireless communications; and means for optimizing the transmission characteristics of wireless communications according to monitored transmission characteristics of nearby wireless communications; wherein the optimizing means further comprises: means for modifying ones of the transmission characteristics so as to allow ones of the wireless communications to continue at artificially sub-optimum transmission conditions for the sake of improving transmission conditions for other wireless communications; and means for temporally blocking ones of the wireless communications if the artificially sub- optimum transmission conditions are not feasible for wireless communications.
39
15. The system of claim 14, wherein the means for monitoring wireless communication transmission characteristics monitors one or more transmission characteristics selected from the group consisting of: (a) communication signal strength;
(b) communication interference level ;
(c) forward link signal power;
(d) reverse link signal power;
(e) cell assignment; (f) antenna beam assignment;
(g) communication channel assignment; (h) handoff status;
(i) territorial location of wireless communications within the cells; (j) directional travel of mobile wireless communications within the cells; and (k) velocity of mobile wireless communications within the cells.
40
16. The system of claim 14, wherein the means for optimizing wireless communication transmission characteristics modifies one or more transmission characteristics selected from the group consisting of: (a) communication signal strength;
(b) forward link signal power;
(c) reverse link signal power,-
(d) cell assignment;
(e) antenna beam assignment; (f) communication channel assignment; and
(g) handoff status.
17. The system of claim 14, wherein the means for monitoring wireless communication transmission characteristics performs said monitoring centrally.
18. The system of claim 17, wherein the means for optimizing wireless communication transmission characteristics also performs said optimizing centrally.
19. Canceled.
STATEMENT UNDER ARTICLE 19(1)
Applicant has amended claims 1 and 14. Claim 1 has been amended to include the limitations of dependent claim 6 and claim 14 has been amended to include the limitations of dependent claim 19. Claims 6 and 19 have been canceled. Claims 1 and 14 also include additional amendments directed to "temporarily blocking ones of the wireless communications." These amendments are clearly supported by the original disclosure at page 21, in lines 25-35. The amendments to claims 1 and 14 have no impact on the disclosure and drawings as filed.
Claims 1 and 14, as amended, require "modifying ones of the transmission characteristics so as to allow ones of the wireless communications to continue at artificially sub-optimum transmission conditions for the sake of improving transmission conditions for other wireless communications" and "temporarily blocking ones of the wireless communications if the artificially sub-optimum transmission conditions are not feasible for wireless communications."
European Patent Application number 90313301.5, entitled CELLULAR RADIOTELEPHONE DIAGNOSTIC SYSTEM, fails to teach either of these elements. The disclosed Diagnostic System monitors and optimizes the transmission characteristics of wireless communications. However, the disclosure does not provide for operation at "artificially sub-optimum transmission conditions" or for "temporarily blocking ones of the wireless communications" as required by the present amendments to claims 1 and 14.
European Patent Application number 93202280.9 (corresponding to United States Patent No. 5,475,868, entitled CELLULAR RADIO SYSTEM HAVING CHANNEL EVALUATION AND OPTIMAL CHANNEL SELECTION VIA TRIAL USE OF NON-ASSIGNED CHANNELS) teaches a system for selecting cellular radio channels. However, the system does not disclose operation at "artificially sub- optimum transmission conditions" or "temporarily blocking ones of the wireless communications" as required by the present amendments to claims 1 and 14.
The article entitled "Adaptive Channel Allocation in TACS" by M. Almgren, et al. discloses a method of assigning channels to a base station based upon channel transmission characteristics. However, the article does not teach a system that operates at "artificially sub-optimum transmission conditions" or that is capable of "temporarily blocking ones of the wireless communications" as required by claims 1 and 14, as amended.
PCT/US1996/020901 1996-01-03 1996-12-31 Method and apparatus for improved control over cellular systems WO1997024895A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU15695/97A AU1569597A (en) 1996-01-03 1996-12-31 Method and apparatus for improved control over cellular systems
IL12527596A IL125275A0 (en) 1996-01-03 1996-12-31 Method and apparatus for improved control over cellular systems

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/582,525 US5884147A (en) 1996-01-03 1996-01-03 Method and apparatus for improved control over cellular systems
US08/582,525 1996-01-03

Publications (3)

Publication Number Publication Date
WO1997024895A2 WO1997024895A2 (en) 1997-07-10
WO1997024895A3 WO1997024895A3 (en) 1998-03-05
WO1997024895B1 true WO1997024895B1 (en) 1998-04-02

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1996/020901 WO1997024895A2 (en) 1996-01-03 1996-12-31 Method and apparatus for improved control over cellular systems

Country Status (5)

Country Link
US (1) US5884147A (en)
AU (1) AU1569597A (en)
CA (1) CA2241971A1 (en)
IL (1) IL125275A0 (en)
WO (1) WO1997024895A2 (en)

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