Apparatus, method and computer program for a base station transceiver

Patent metadata

Field	Value
Publication number	US-9642029-B2
Application number	US-201314412392-A
Country	US
Kind code	B2
Filing date	Jun 21, 2013
Priority date	Jul 2, 2012
Publication date	May 2, 2017
Grant date	May 2, 2017

Abstract

Embodiments relate to an apparatus, a method and a computer program for a base station transceiver ( 100 ) for a mobile communication system ( 300 ). The base station transceiver ( 100 ) is operable in a coverage area ( 205 ) of another base station transceiver ( 200 ). The other base station transceiver ( 200 ) is operable to transmit radio signals in a repetitive sequence of radio frames, wherein in at least one of the radio frames in the sequence the other base station transceiver ( 200 ) is operable to transmit with a reduced transmission power or to suspend transmission compared to at least one other of the radio frames in the sequence. The apparatus ( 10 ) comprises an interface ( 12 ) operable to receive information on the at least one of the radio frames in the sequence and a controller ( 14 ) operable to determine information on a measurement configuration for a mobile transceiver ( 400 ) associated to the base station transceiver ( 100 ) based on the received information. The information on the measurement configuration comprises information on a periodic signal quality measurement at the mobile transceiver ( 400 ) on radio signals received from the base station transceiver ( 100 ) during a time interval. The information on the measurement configuration comprises information positioning the time interval in the sequence to the same position for at least two subsequent signal quality measurements.

First claim

The invention claimed is:

1. An apparatus operable in a base station transceiver of a mobile communication system, the apparatus comprising
an interface operable to receive information on at least one radio frame in a repetitive sequence of radio frames, during which another base station transceiver is operable to transmit with reduced transmission power or to suspend transmission compared to the at least one other of the radio frames in the sequence; and
a controller operable to determine information on a measurement configuration for a mobile transceiver associated to the base station transceiver based on the received information,
wherein the information on the measurement configuration comprises information on a periodic signal quality measurement at the mobile transceiver on radio signals received from the base station transceiver during a time interval, wherein the information on the measurement configuration comprises information positioning the time interval in the sequence to the same position for at least two subsequent signal quality measurements,
wherein the time interval comprises the at least one of the radio frames in the sequence for which the other base station transceiver is operable to transmit with reduced transmission power or to suspend transmission compared to the at least one other radio frame in the sequence, and wherein the time interval comprises the at least one other radio frame,
wherein the time interval comprises an averaging window in which measurements are averaged across at least six subsequent time intervals in the sequence and the controller is operable to determine the information on the measurement configuration comprising information on a reference radio frame in the sequence, the reference radio frame positioning the time interval for the measurements relative to the sequence.

2. The apparatus of claim 1 , wherein the controller is operable to determine the information on the measurement configuration comprising information on a reference radio frame in the sequence, the reference radio frame positioning the time interval for the measurements relative to the sequence.

3. The apparatus of claim 1 , wherein the controller is operable to determine the information on the measurement configuration comprising information on a measurement repetition cycle corresponding to an integer multiple of a repetition cycle of the sequence.

4. The apparatus of claim 3 , wherein the controller is further operable to determine a corrected information on a measurement result based on the information on the at least one of the radio frames in the sequence, during which the other base station transceiver is operable to transmit with the reduced transmission power or to suspend transmission compared to the at least one other of the radio frames in the sequence, and based on the information on the measurement configuration,
the corrected measurement information comprising information on a signal quality of the signals transmitted by the base station transceiver and received by the mobile transceiver for radio frames, during which the other base station transceiver is operable to transmit with the reduced transmission power or to suspend transmission, and/or
the corrected measurement information comprising information on a signal quality of the signals transmitted by the base station transceiver and received by the mobile transceiver for radio frames, during which the other base station transceiver is operable to transmit with the regular transmission power.

5. The apparatus of claim 4 , wherein the controller is further operable to schedule a data transmission from the base station transceiver to the mobile transceiver during a radio frame for which the other base station transceiver is operable to transmit with the reduced transmission power or to suspend transmission, when the information on the corrected measurement results indicates a signal quality of the radio signals received at the mobile transceiver, which is below a threshold, or during a radio frame for which the other base station transceiver is operable to transmit with regular transmission power, when the information on the measurement results indicates a signal quality of the radio signals received at the mobile transceiver, which is above the threshold.

6. The apparatus of claim 4 , wherein the controller is further operable to determine the corrected information on the measurement result based on an error rate of payload data transmissions from the base station transceiver to the mobile transceiver in radio frames, during which the other base station transceiver is operable to transmit with the reduced transmission power or to suspend transmission, and/or in radio frames, during which the other base station transceiver is operable to transmit with the regular transmission power.

7. The apparatus of claim 4 , wherein the controller is further operable to determine the corrected information on the measurement result based on an analysis of acknowledgements for payload data packets transmitted in radio frames, during which the other base station transceiver is operable to transmit with the reduced transmission power or to suspend transmission, and/or in radio frames, during which the other base station transceiver is operable to transmit with the regular transmission power.

8. The apparatus of claim 1 , further comprising a receiver operable to receive information on measurement results measured by the mobile transceiver, the information on the measurement results comprising information on a reception quality of radio signals received by the mobile transceiver from the base station transceiver based on the information on the measurement configuration.

9. The apparatus of claim 8 , wherein the controller is further operable to schedule a data transmission from the base station transceiver to the mobile transceiver during a radio frame for which the other base station transceiver is operable to transmit with the reduced transmission power or to suspend transmission, or during a radio frame for which the other base station transceiver is operable to transmit with regular transmission power, based on the information on the measurement results.

10. The apparatus of claim 8 , wherein the controller is further operable to schedule a data transmission from the base station transceiver to the mobile transceiver based on information on handover measurements from the mobile transceiver, wherein the controller is operable to determine whether the mobile transceiver receives radio signals from the other base station transceiver with a signal strength above a threshold,
wherein the controller is further operable to determine the information on the measurement configuration such that the mobile transceiver performs measurements during more radio frames during which the other base station transceiver is operable to transmit with the reduced transmission power or to suspend transmission, than in radio frames, during which the other base station transceiver is operable to transmit with the regular transmission power, when the signal strength lies above the threshold.

11. The apparatus of claim 1 , wherein the controller is operable to determine the information on the measurement configuration, such that the time interval, having a predetermined duration, comprises as many radio frames, during which the other base station transceiver is operable to transmit with the reduced transmission power or to suspend transmission, as possible, or wherein the controller is operable to determine the information on the measurement configuration, such that the time interval, having a predetermined duration, comprises as few radio frames, during which the other base

Assignees

• Alcatel Lucent

Inventors

• Weber Andreas
• Stanze Oliver
• Bestard Bennasar Antoni
• Link Martin

Classifications

• H04W72/542

  using measured or perceived quality · CPC title

• H04W72/54

  based on quality criteria · CPC title

• H04W92/20

  between access points · CPC title

• H04W24/10 Primary

  Scheduling measurement reports {; Arrangements for measurement reports} · CPC title

• H04W72/0446

  Resources in time domain, e.g. slots or frames · CPC title