Methods for configuring and performing UL measurements accounting for low-activity state configuration of the transmitting node

Patent metadata

Field	Value
Publication number	US-10159005-B2
Application number	US-201414358064-A
Country	US
Kind code	B2
Filing date	Feb 20, 2014
Priority date	Feb 20, 2013
Publication date	Dec 18, 2018
Grant date	Dec 18, 2018

Abstract

A system and method ( 40, 50, 70, 80 ) for meeting a pre-defined requirement for uplink (UL) measurements when low-activity state configuration, and for allowing a node to adapt or adjust the UL signals, is disclosed. Particularly, a measuring node ( 30 a ) is configured to adapt its UL measurements responsive to obtaining information about low-activity state configuration of a transmitting node. The transmitting node ( 30 b ) is configured to adapt its UL transmission when configuring low-activity states to comply with the pre-defined requirement or rule. A configuring node ( 30 c ) initiates configuring the UL radio signal transmissions for the transmitting node, and adaptively configures the low-activity state configuration and/or the UL radio signal configuration for the transmitting node.

First claim

What is claimed is:

1. A method performed at a measuring node configured to adapt its uplink (UL) measurements responsive to information about a low-activity state configuration of a transmitting node, the method comprising:
obtaining information about the low-activity state configuration of the transmitting node, wherein the obtaining comprises determining the information based on a received measurement and/or a received measurement report associated with the transmitting node, and the low-activity state configuration comprises one or both of a Discontinuous Reception (DRX) configuration and a Discontinuous Transmission (DTX) configuration of the transmitting node; and
performing at least one UL measurement using the obtained information, wherein performing the at least one UL measurement comprises measuring on UL radio signals transmitted by the transmitting node.

2. The method of claim 1 wherein obtaining information about the low-activity state of the transmitting node further comprises determining whether the UL radio signals on which the at least one UL measurement is made are impacted by the low-activity state configuration based on:
a pre-defined rule or requirement;
a configuration of the transmitting node received from the transmitting node;
configuration data received from another network node; and/or
the information about the low-activity state configuration.

3. The method of claim 1 wherein obtaining information about the low-activity state of the transmitting node further comprises receiving from another node, or from a higher protocol layer, an indicator that indicates
whether a specified type of UL radio signal is prevented from being transmitted by the transmitting node due to low-activity periods;
whether the transmitting node, as configured, transmits the specified type of UL radio signal;
whether the transmitting node is configurable to transmit the specified type of UL signal; and/or
whether the transmitting node will transmit a predetermined number of UL radio signal transmissions, regardless of whether low-activity states are used.

4. The method of claim 1 wherein obtaining information about the low-activity state of the transmitting node further comprises receiving:
an actual low-activity state configuration of the transmitting node;
one or more possible low-activity state configurations of the transmitting node;
a common low-activity configuration of the transmitting node usable by a group of wireless devices in a cell, or all of the wireless devices in the cell;
a pattern or a map indicating a subset of one or both of configured signals and time instances that are transmitted by the transmitting node regardless of whether the transmitting node is configured to operate in a low-activity state; and/or
measurement scheduling information associated with an activity of the transmitting node.

5. The method of claim 1 wherein obtaining information about the low-activity state of the transmitting node further comprises autonomously discovering the low-activity state of the transmitting node by detecting the configured UL radio signals transmitted by the transmitting node.

6. A measuring node configured to adapt its uplink (UL) measurements responsive to information about a low-activity state configuration of a transmitting node, the measuring node comprising:
a communications interface configured to receive a measurement and/or measurement report associated with the transmitting node; and
a processing circuit communicatively coupled to the communications interface, wherein the processing circuit is configured to:
obtain the information about the low-activity state configuration of the transmitting node by determining the information based on the received measurement and/or measurement report associated with the transmitting node, wherein the low-activity state configuration comprises one or both of a Discontinuous Reception (DRX) configuration and a Discontinuous Transmission (DTX) configuration of the transmitting node; and
perform at least one UL measurement using the obtained information by measuring on UL radio signals transmitted by the transmitting node.

7. The measuring node of claim 6 wherein the measuring node is comprised in a node that is other than a base station serving the transmitting node.

8. The measuring node of claim 6 wherein to obtain the information about the low-activity state of the transmitting node, the processing circuit is further configured to determine whether the UL radio signals on which the at least one UL measurement is made are impacted by the low-activity state configuration based on:
a pre-defined rule or requirement;
a configuration of the transmitting node received from the transmitting node; and/or
the information about the low-activity state configuration of the transmitting node.

9. The measuring node of claim 6 wherein to obtain the information about the low-activity state of the transmitting node, the processing circuit is further configured to receive via the communications interface an indicator that indicates:
whether a specified type of UL radio signal is prevented from being transmitted by the transmitting node due to low-activity periods;
whether the transmitting node, as configured, transmits the specified type of UL radio signal;
whether the transmitting node is configurable to transmit the specified type of UL signal; and/or
whether the transmitting node will transmit a predetermined number of UL radio signal transmissions, regardless of whether low-activity states are used.

10. The measuring node of claim 6 wherein to obtain the information about the low-activity state of the transmitting node, the processing circuit is further configured to receive via the communications interface:
an actual low-activity state configuration of the transmitting node;
one or more possible low-activity state configurations of the transmitting node;
a common low-activity configuration of the transmitting node usable by a group of wireless devices in a cell, or all of the wireless devices in the cell;
a pattern or a map indicating a subset of one or both of configured signals and time instances that are transmitted by the transmitting node regardless of whether the transmitting node is configured to operate in a low-activity state; and/or
measurement scheduling information associated with an activity of the transmitting node.

11. The measuring node of claim 6 wherein to obtain the information about the low-activity state of the transmitting node, the processing circuit is further configured to autonomously discover the low-activity state of the transmitting node by detecting the configured UL radio signals transmitted by the transmitting node.

12. The measuring node of claim 7 , wherein the node comprising the measuring node is a different base station than the base station serving the transmitting node.

13. The method of claim 1 , wherein the measuring node is comprised in a node that is other than a base station serving the transmitting node.

14. The method of claim 13 , wherein the node comprising the measuring node is a different base station than the base station serving the transmitting node.

Assignees

• Ericsson Telefon Ab L M
• Ericsson Telefon Ab L M

Inventors

• Siomina Iana

Classifications

• Y02D70/1264

  Cross-Sectional Technologies · mapped topic

• H04W52/0229

  where the received signal is a wanted signal · CPC title

• Y02D70/146

  Cross-Sectional Technologies · mapped topic

• H04W52/0216

  using a pre-established activity schedule, e.g. traffic indication frame · CPC title

• Y02D70/1262

  Cross-Sectional Technologies · mapped topic