EP0479741A1
Expired / Lapsed
EP
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Method for antenna selection in a mobile radio communication system
Assignee: Telefonaktiebolaget LM Ericsson AB
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Filing: 1991-02-04
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Granted: —
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Expires: 2011-02-04
Abstract
Abstract The invention relates to a method in a signal bursts transmitting mobile radio communication system for signalling antenna selection from a mobile station (MS) during transmission from a base station (BS) with a set of antennas. In accordance with this method tail bits in each signal burst are used for identification of the antenna that is to be activated.
Inventors
- 👤 Bengt Yngve Persson
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-24 11:18
CPC Classifications
H; H04; H04B; H04B7/00; H04B7/02; H04B7/04; H04B7/06; H04B7/0602; H04B7/0608; H04B7/061
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
67 words
A method in a signal bursts transmitting mobile radio communication system for signalling antenna selection from a mobile station (MS) during transmission from a base station (BS) with a set of antennas, each signal burst comprising a predetermined number of tail bits normally intended for compensator termination, characterized by said tail bits in each signal burst being used for identifying the antenna that is to be activated.
Claim 2
Independent Claim
67 words
A method in a signal bursts transmitting mobile radio communication system for signalling antenna selection from a mobile station (MS) during transmission from a base station (BS) with a set of antennas, each signal burst comprising a predetermined number of tail bits normally intended for compensator termination, characterized by said tail bits in each signal burst being used for identifying the antenna that is to be activated.
Claim 3
Dependent Claim
13 words
The method of claim 1, characterized in that said set comprises two antennas.
Claim 4
Dependent Claim
42 words
The method of claim 2, characterized in that said mobile station (MS) orders transmission on one antenna by setting said tail bits to first predetermined values and orders transmission on the other antenna by setting said tail bits to second predetermined values.
Claim 5
Dependent Claim
42 words
The method of claim 2, characterized in that said mobile station (MS) orders a change of antenna by setting said tail bits to first predetermined values and continued transmission from the same antenna by setting said tail bits to second predetermined values.
Claim 6
Dependent Claim
57 words
The method of claim 1, characterized in that said set comprises more than two antennas, that said mobile station (MS) orders change of antenna by setting said tail bits to first predetermined values and continued transmission from the same antenna by setting said tail bits to second predetermined values, said antennas being changed cyclically within said set.
Claim 7
Independent Claim
25 words
The method of any of claims 3-5, characterized in that said first predetermined values comprise solely ones while said second predetermined values comprise solely zeroes.
Claim 8
Dependent Claim
72 words
The method of claim 6, characterized in that during determination of the order transmitted by said mobile station (MS), a decision regarding which of the two alternatives that has been transmitted is made by summing the received tail bit values and thereafter making a majority decision, so that, if more than half of said tail bits have been received as ones, one alternative is chosen and otherwise the other alternative is chosen.
Claim 9
Dependent Claim
41 words
The method of claim 7, characterized in that 6 tail bits are used in each signal burst, the first and last tail bit each being given the weight 1/2 during summation while the remaining tail bits are given the weight 1.
References Cited (Backward Citations)
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