Wireless device, radio network node, and methods performed therein for handling communication in a wireless communication network

Patent metadata

Field	Value
Publication number	US-11051191-B2
Application number	US-201816606913-A
Country	US
Kind code	B2
Filing date	May 3, 2018
Priority date	May 4, 2017
Publication date	Jun 29, 2021
Grant date	Jun 29, 2021

Abstract

Embodiments herein relate e.g. to a method performed a wireless device (10) for handling communication of the wireless device (10) in a wireless communication network (1). A radio network node (12) serves the wireless device (10). The wireless device obtains a first indication indicating a first number of beams for performing cell quality derivation on and a second indication indicating a second number of beams for performing measurement reporting on. The wireless device performs a cell quality derivation taking the first indication into account; and performs measurement reporting of a second number of beams taking the second indication into account.

First claim

The invention claimed is:

1. A method performed by a wireless device for handling communication of the wireless device in a wireless communication network, wherein a radio network node serves the wireless device, the method comprising:
obtaining a first indication indicating a first number of beams for performing cell quality derivation on and a second indication indicating a second number of beams for performing measurement reporting on, wherein the first and second numbers are different and the first number is lower than the second number;
performing a cell quality derivation taking the first indication into account; and
performing measurement reporting of the second number of beams taking the second indication into account.

2. The method according to claim 1 , wherein, obtaining the first indication comprises assuming the first indication to indicate that the first number of beam is one when no indication is received by the wireless device, or when only receiving the second indication from the radio network node.

3. The method according to claim 1 , wherein the first and/or the second indication is a real value defining the number of beams and/or a threshold value defining best beams.

4. The method according to claim 1 , wherein the first indication indicates that the first number of beams is one.

5. The method according to claim 1 , comprising, if the first number of beams for cell quality derivation is lower than the second number of beams for measurement reporting, setting up a maximum number of filters, and performing cell quality derivation using a subset of values for cell quality derivation while including all available filtered values in the measurement reports.

6. The method according to claim 1 , wherein numbers of beams configured by the radio network node to be used by the wireless device for cell quality derivation and measurement reporting are interpreted as the maximum number of beams to be averaged to compute cell quality derivation.

7. The method according to claim 1 , wherein the first indication is a function using the second indication.

8. A method performed by a radio network node for handling communication of a wireless device in a wireless communication network, wherein the radio network node serves the wireless device, the method comprising:
transmitting configuration data to the wireless device, wherein the configuration data comprises a first indication indicating a first number of beams for performing cell quality derivation on and a second indication indicating a second number of beams for performing measurement reporting on, wherein the first and second numbers are different and the first number is lower than the second number.

9. A wireless device for handling communication of the wireless device in a wireless communication network, wherein a radio network node is configured to serve the wireless device and the wireless device comprising processing circuitry configured to:
obtain a first indication indicating a first number of beams for performing cell quality derivation on and a second indication indicating a second number of beams for performing measurement reporting on, wherein the first and second numbers are different and the first number is lower than the second number;
perform a cell quality derivation taking the first indication into account; and to
perform a measurement reporting of the second number of beams taking the second indication into account.

10. The wireless device according to claim 9 , wherein the wireless device is configured to obtain the first indication by assuming the first indication to indicate that the first number of beam is one when no indication is received by the wireless device, or when only receiving the second indication from the radio network node.

11. The wireless device according to claim 9 , wherein the first and/or the second indication is a real value defining the number of beams and/or a threshold value defining best beams.

12. The wireless device according to claim 9 , wherein the first indication indicates that the first number of beams is one.

13. The wireless device according to claim 9 , further being configured to, when the first number of beams for cell quality derivation is lower than the second number of beams for measurement reporting, set up a maximum number of filters, and to perform the cell quality derivation using a subset of values for cell quality derivation while including all available filtered values in the measurement reports.

14. The wireless device according to claim 9 , configured to interpret the numbers of beams configured by the radio network node to be used by the wireless device for cell quality derivation and measurement reporting as the maximum number of beams to be averaged to compute cell quality derivation.

15. The wireless device according to claim 9 , wherein the first indication is a function using the second indication.

16. A radio network node for handling communication of a wireless device in a wireless communication network, wherein the radio network node comprising processing circuitry configured to serve the wireless device, and to:
transmit configuration data to the wireless device, wherein the configuration data comprises a first indication indicating a first number of beams for performing cell quality derivation on and a second indication indicating a second number of beams for performing measurement reporting on, wherein the first and second numbers are different and the first number is lower than the second number.

17. A wireless device comprising processing circuitry configured to:
obtain a first indication indicating a first number of beams for performing cell quality derivation on and a second indication indicating a second number of beams for performing measurement reporting on, wherein the first and second numbers are different and the first number is lower than the second number;
perform a cell quality derivation taking the first indication into account; and to perform a measurement reporting of the second number of beams taking the second indication into account.

18. A radio network node comprising processing circuitry configured to:
transmit configuration data to the wireless device, wherein the configuration data comprises a first indication indicating a first number of beams for performing cell quality derivation on and a second indication indicating a second number of beams for performing measurement reporting on, wherein the first and second numbers are different and the first number is lower than the second number.

Assignees

• Ericsson Telefon Ab L M
• Telefonaktiebolaget Ericsson Lm Publ

Inventors

• Da Silva Icaro L J
• Euler Sebastian

Classifications

• H04B7/06952

  Selecting one or more beams from a plurality of beams, e.g. beam training, management or sweeping · CPC title

• H04W24/10

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

• H04B7/0617

  for beam forming · CPC title

• H04W36/0094 Primary

  Definition of hand-off measurement parameters · CPC title

• H04W36/0058

  Transmission of hand-off measurement information, e.g. measurement reports · CPC title