Receiver and a Method Therein
First Claim
1. A method in a receiver for cell search to find an actual base station having a carrier frequency in a radio communications network the method comprising:
- detecting a first signal representative of a base station by performing;
slot synchronization;
frame synchronization;
cell identification; and
measurement of a signal quality of the first signal and comparison of the measured signal quality with a first threshold value;
when a first signal having a signal quality that is greater than the first threshold value has been detected, searching for at least one second signal representative of a base station for at least one frequency offset comprised in a set of offsets,when one or more second signals are detected, selecting the signal with the highest signal quality, and detecting a broadcast radio channel representative of a base station for the selected signal.
2 Assignments
0 Petitions
Accused Products
Abstract
A receiver 10 and method in the receiver for cell search to find an actual base station having a carrier frequency in a radio communications network 1. The receiver detects a first signal representative of a base station 12, 14, 16, 18 by performing slot synchronisation, frame synchronization, cell identification, measurement of a signal quality of the first signal and comparison of the measured signal quality with a first threshold value. When a first signal having a signal quality that is greater than the first threshold value has been detected, the receiver searches for at least one second signal representative of a base station for at least one frequency offset comprised in a set of offsets S3. Further, when one or more second signals are detected, the receiver selects the signal with the highest signal quality, and detects a broadcast radio channel representative of a base station for the selected signal.
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Citations
14 Claims
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1. A method in a receiver for cell search to find an actual base station having a carrier frequency in a radio communications network the method comprising:
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detecting a first signal representative of a base station by performing; slot synchronization; frame synchronization; cell identification; and measurement of a signal quality of the first signal and comparison of the measured signal quality with a first threshold value; when a first signal having a signal quality that is greater than the first threshold value has been detected, searching for at least one second signal representative of a base station for at least one frequency offset comprised in a set of offsets, when one or more second signals are detected, selecting the signal with the highest signal quality, and detecting a broadcast radio channel representative of a base station for the selected signal. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A receiver for cell search to find an actual base station having a carrier frequency in a radio communications network, the receiver comprises:
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a detecting circuit configured to detect a first signal representative of a base station (12, 14, 16, 18) by performing; slot synchronization; frame synchronization; cell identification; and measurement of a signal quality of the first signal and comparison of the measured signal quality with a first threshold value; a searching circuit configured to, when a first signal having a signal quality that is greater than the first threshold value has been detected, search for at least one second signal representative of a base station for at least one frequency offset comprised in a set of offsets, a selecting circuit configured to, when one or more signals are detected, select the signal with the highest signal quality, and wherein the detecting circuit is further configured to, when one or more signals are detected, detect a broadcast radio channel representative of a base station for the selected second signal. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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Specification