Method and device for link-characteristic based selection of supporting access nodes
AssigneeTelefonaktiebolaget L M Ericsson (publ)
InventorsChristian Hoymann, Laetitia Falconetti, Arne Simonsson
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Abstract
For uplink cooperation of a serving access node (100-1) one or more supporting access nodes (100-2) are selected. The selection is based on a characteristic of a link between a terminal (200) served by the serving access node (100-1) and the supporting access node (100-2), or is based on a characteristic of a link between a further terminal (200′) served by the supporting access node (100-2) and the serving access node (100-1). The characteristics of the links may comprise a signal quality, e.g. a path gain, a signal strength, or a latency. The characteristics of the links may also comprise scheduling information, e.g. time resources and/or frequency resources used on the link.
Claims25
A method for cooperatively receiving an uplink signal from a first terminal served by a first access node, the method comprising:
- determining at least one of:
- a first characteristic of a first link from the first terminal to a second access node that serves a second terminal;
- and
- a second characteristic of a second link from the second terminal to the first access node;
- determining a third characteristic of a third link between the first terminal and the first access node;
- and
- selecting the second access node to support cooperative reception of the uplink signal, based on a comparison of the third characteristic with at least one of the first characteristic and the second characteristic.
A first access node configured to serve a first terminal and to cooperatively receive an uplink signal from that first terminal, and the first access node comprising a processor configured to:
- determine at least one of:
- a first characteristic of a first link from the first terminal to a second access node that serves a second terminal;
- and
- a second characteristic of a second link from the second terminal to the first access node;
- determine a third characteristic of a third link between the first terminal and the first access node;
- and
- select the second access node to support cooperative reception of the uplink signal, based on a comparison of the third characteristic with at least one of the first characteristic and the second characteristic.
A computer program product stored on a non-transitory computer-readable medium and comprising code that, when executable by a processor of a first access node, cause the first access node to serve a first terminal and to cooperatively receive an uplink signal from that first terminal, the code causing the first access node to:
- determine at least one of:
- a first characteristic of a first link from the first terminal to a second access node that serves a second terminal;
- and
- a second characteristic of a second link from the second terminal to the first access node;
- determine a third characteristic of a third link between the first terminal and the first access node;
- and
- select the second access node to support cooperative reception of the uplink signal, based on a comparison of the third characteristic with at least one of the first characteristic and the second characteristic.
Dependencies are inferred from the claim text.