Methods and arrangements in a wireless communication system

1. A method executed in a network node in a wireless communications network, the method comprising:

resolving a physical form factor of a wireless device in the wireless communications network from obtained information;

determining for the wireless device and based on the physical form factor, at least one of:

radio resources;

appropriate physical layer parameters;

configuration parameters;

using the determined resources and/or parameters for a network operation.

2. The method of claim 1 , wherein the determining further comprises determining one or more of the following for the wireless device based on the physical form factor:

transport format;

measurement bandwidth;

measurement frequency;

operating bandwidth;

operating frequency;

power control target;

radio link quality target.

3. The method of claim 2 , wherein the determining further comprises:

assigning the wireless device to a higher frequency band or higher-frequency carrier based on the wireless device having a larger physical form factor;

assigning the wireless device to a lower frequency band or lower-frequency carrier based on the wireless device having a smaller physical form factor.

4. The method of claim 2 , wherein the determining further comprises allocating resources with a more robust transport format than indicated by conducted measurement results based on the wireless device having a smaller physical form factor or reduced radiated power.

5. The method of claim 2 , wherein the determining further comprises configuring the wireless device to perform measurements over a wider bandwidth and/or in a lower frequency band based on the wireless device having a small physical form factor.

6. The method of claim 5 :

wherein the network node is a positioning node;

wherein the measurements are critical positioning measurements.

7. The method of claim 1 :

wherein the network node is a target base station;

wherein the using comprises using the determined resources and/or parameters for radio resource preparation at handover to the target base station.

8. The method of claim 1 , further comprising:

obtaining updated physical form factor information for the wireless device;

using the updated information for a network operation.

9. The method of claim 1 , wherein resolving the physical form factor from obtained information comprises:

obtaining measurement results for the wireless device, radio resource usage for the wireless device, or an achieved bit rate for the wireless device under certain conditions;

determining a physical form factor metric for the device based on comparing the measurement results, radio resource usage, or achieved bit rate with a reference value applicable under the same or similar conditions.

10. The method of claim 9 , wherein the conditions comprise one or more of:

radio environment;

speed of the wireless device;

carrier frequency;

antenna configuration;

location of the wireless device;

cell load;

interference;

traffic characteristics;

amount of resources assigned.

11. The method of claim 1 , wherein resolving the physical form factor from obtained information comprises receiving the information from the wireless device, or from another network node.

12. The method of claim 1 , wherein the information from which the network node resolves the physical form factor reflects one or more of:

morphological characteristics;

antenna correlation characteristics;

antenna separation characteristics;

orientation of the wireless device;

material conductivity;

an indication of interaction of the wireless device with an auxiliary device.

13. The method of claim 1 , wherein the information from which the network node resolves the physical form factor comprises an indication of which metric or metrics the physical form factor information relates to.

14. A network node, comprising:

radio circuitry;

processing circuitry operatively connected to the radio circuitry;

memory operatively connected to the processing circuitry;

wherein the processing circuitry is configured to:

resolve a physical form factor of a wireless device from obtained information;

determine, based on the physical form factor, at least one of:

expected resources required for serving the wireless device;

appropriate physical layer parameters for the wireless device;

configuration parameters for the wireless device;

use the determined parameters and/or expected resources for a network operation.

15. The network node of claim 14 , wherein the network node is a base station, a radio network controller, a mobility management entity, or a positioning node.