CA2109508A1 - Directional Handover Control in Digital Mobile Radio Systems Employing Maho - Google Patents

Directional Handover Control in Digital Mobile Radio Systems Employing Maho

Info

Publication number
CA2109508A1
CA2109508A1 CA2109508A CA2109508A CA2109508A1 CA 2109508 A1 CA2109508 A1 CA 2109508A1 CA 2109508 A CA2109508 A CA 2109508A CA 2109508 A CA2109508 A CA 2109508A CA 2109508 A1 CA2109508 A1 CA 2109508A1
Authority
CA
Canada
Prior art keywords
communication unit
base site
threshold
timing advance
maho
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA2109508A
Other languages
French (fr)
Other versions
CA2109508C (en
Inventor
Barry J. Menich
Jeffrey D. Bonta
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Motorola Mobility LLC
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2109508A1 publication Critical patent/CA2109508A1/en
Application granted granted Critical
Publication of CA2109508C publication Critical patent/CA2109508C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
    • H04W36/304—Reselection being triggered by specific parameters by measured or perceived connection quality data due to measured or perceived resources with higher communication quality
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/32—Reselection being triggered by specific parameters by location or mobility data, e.g. speed data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/32—Reselection being triggered by specific parameters by location or mobility data, e.g. speed data
    • H04W36/326—Reselection being triggered by specific parameters by location or mobility data, e.g. speed data by proximity to another entity

Abstract

A method of selecting handover targets for a communication unit (40) exchanging a communicated signal through a serving base site (10-19) in a digital cellular system. The method uses timing advance to determine a relative distance of a communication unit (40) to the serving base site (10-19). The method comprises the steps of comparing a timing advance value with a first threshold. The first threshold may be equal to a distance one and one-half times the radius of the serving cell. When the timing advance value exceeds the first threshold, a base site frequency list is modified to include base sites non-adjacent the serving base site. The identity of the base sites non-adjacent the serving base sites may be determined from the directionality of communication unit (40). The method further includes the step of selecting a handover target providing highest relative RRSI value to the communication unit (40) from the modified base site frequency list.
CA002109508A 1992-03-23 1993-01-27 Directional handover control in digital mobile radio systems employing maho Expired - Lifetime CA2109508C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US856,278 1992-03-23
US07/856,278 US5327575A (en) 1992-03-23 1992-03-23 Directional handover control in digital mobile radio systems employing MAHO

Publications (2)

Publication Number Publication Date
CA2109508A1 true CA2109508A1 (en) 1993-09-24
CA2109508C CA2109508C (en) 1999-01-12

Family

ID=25323232

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002109508A Expired - Lifetime CA2109508C (en) 1992-03-23 1993-01-27 Directional handover control in digital mobile radio systems employing maho

Country Status (8)

Country Link
US (1) US5327575A (en)
EP (1) EP0591478B1 (en)
JP (1) JP3189278B2 (en)
KR (1) KR970002762B1 (en)
CA (1) CA2109508C (en)
DE (1) DE69319821T2 (en)
SK (1) SK131093A3 (en)
WO (1) WO1993019560A1 (en)

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Also Published As

Publication number Publication date
US5327575A (en) 1994-07-05
DE69319821D1 (en) 1998-08-27
DE69319821T2 (en) 1999-03-04
EP0591478A4 (en) 1994-08-17
EP0591478B1 (en) 1998-07-22
JPH06508497A (en) 1994-09-22
SK131093A3 (en) 1994-08-10
WO1993019560A1 (en) 1993-09-30
KR970002762B1 (en) 1997-03-10
CA2109508C (en) 1999-01-12
EP0591478A1 (en) 1994-04-13
JP3189278B2 (en) 2001-07-16

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