MEASUREMENTS AND SIGNALLING FOR FAST SETUP

• US 20200137600A1
• Filed: 03/22/2018
• Published: 04/30/2020
• Est. Priority Date: 05/05/2017
• Status: Active Grant

• Current Assignee: Telefonaktiebolaget LM Ericsson
• Original Assignee: Telefonaktiebolaget LM Ericsson
• Inventors: ERICSON, Marten, FAN, Rui, MILDH, Gunnar, YILMAZ, Osman Nuri Can
• Granted Patent: US 10,924,957 B2
• Time in Patent Office: Days
• CPC Class Codes: H04W 24/10 Scheduling measurement reports ; Arrangements for measurement reports
• CPC Class Codes: H04W 36/0058 Transmission of hand-off measurement information, e.g. measurement reports
• CPC Class Codes: H04W 36/0088 Scheduling hand-off measurements
• CPC Class Codes: H04W 74/0833 Random access procedures, e.g. with 4-step access

Abstract

A wireless device, a network node and a respective method performed thereby for performing measurements for fast setup are provided. The method performed by the wireless device comprises receiving, during a RACH procedure, a “message 4” (Msg 4), which Msg 4 may be a contention resolution, the Msg 4 comprising a trigger for performing a fast measurement. The method also comprises performing a fast measurement on one or more carrier(s) that the wireless device receives. The method may further comprise sending a measurement report to the network node which sent the Msg 4 to the wireless device.

Claims

1. A method performed by a wireless device for performing measurements for fast setup, the method comprising:

receiving, from a network node, during a Random Access Channel, RACH, procedure, a message 4, Msg 4, and the Msg 4 comprising a trigger for performing a fast measurement,

performing the fast measurement on one or more carrier(s) that the wireless device receives, wherein the fast measurement is performed within at least one of;

i. less than 200 milliseconds in an intra-frequency carrier, and

ii. less than 480 milliseconds in an inter-frequency carrier,

sending a measurement report, based on the fast measurement, to the network node.

2. The method according to claim 1, wherein the Msg 4 comprises at least one of:

i. a frequency to perform the fast measurement on,

ii. information relating to which carriers to perform the fast measurement on,

iii. which inter-frequency carrier or inter-frequency carriers to perform the fast measurement on,

iv. a measurement period to perform the fast measurement,

v. a bandwidth to perform the fast measurement on, and

vi. a measurement reporting criteria on surrounding cells.

3. The method according to claim 2, wherein the measurement period is a layer 3, L3, filter length.

4. The method according to claim 1, wherein the trigger in the Msg 4 is the measurement period, the bandwidth to perform the fast measurement on, or the measurement reporting criteria.

7. The method according to claim 1, wherein the fast measurement is performed directly during the transition to a CONNECTED state.

5. (canceled)

6. (canceled)

8. A method performed by a network node for requesting measurements for fast setup, the method comprising:

transmitting, during a Random Access Channel, RACH, procedure, a message 4, Msg 4, to the wireless device, the Msg 4 comprising a trigger for performing a fast measurement, wherein the fast measurement is to be performed within at least one of;

i. less than 200 milliseconds in an intra-frequency carrier, and

ii. less than 480 milliseconds in an inter-frequency carrier, and

receiving a measurement report, based on the fast measurement, from the wireless device.

9. The method according to claim 8, wherein the Msg 4 comprises at least one of:

vii. a frequency to perform the fast measurement on,

viii. information relating to which carriers to perform the fast measurement on,

ix. which inter-frequency carrier or inter-frequency carriers to perform the fast measurement on,

x. a measurement period to perform the fast measurement,

xi. a bandwidth to perform the fast measurement on, and

xii. a measurement reporting criteria on surrounding cells.

10. The method according to claim 9, wherein the measurement period is a layer 3, L3, filter length.

11. The method according to claim 8, wherein the trigger in the Msg 4 is the measurement period, the bandwidth to perform the fast measurement on, or the measurement reporting criteria.

14. The method according to claim 8, wherein the fast measurement is performed directly during the transition to a CONNECTED state.

12. (canceled)

13. (canceled)

15. A wireless device configured to perform measurements for fast setup, the wireless device being further configured to:

receive, from a network node, during a Random Access Channel, RACH, procedure, a message 4, Msg 4, and the Msg 4 comprising a trigger for performing a fast measurement,

perform the fast measurement on one or more carrier(s) that the wireless device is configured to receive, wherein the fast measurement is configured to be performed within at least one of;

i. less than 200 milliseconds in an intra-frequency carrier, and

ii. less than 480 milliseconds in an inter-frequency carrier,

send a measurement report, based on the fast measurement, to the network node.

16. The wireless device according to claim 15, wherein the Msg 4 is configured to comprise at least one of:

xiii. a frequency to perform the fast measurement on,

xiv. information relating to which carriers to perform the fast measurement on,

xv. which inter-frequency carrier or inter-frequency carriers to perform the fast measurement on,

xvi. a measurement period to perform the fast measurement,

xvii. a bandwidth to perform the fast measurement on, and

xviii. a measurement reporting criteria on surrounding cells.

17. The wireless device according to claim 16, wherein the measurement period is a layer 3, L3, filter length.

18. The wireless device according to claim 15, wherein the trigger in the Msg 4 is the measurement period, the bandwidth to perform the fast measurement on, or the measurement reporting criteria.

21. The wireless device according to claim 15, wherein the fast measurement is configured to be performed directly during the transition to a CONNECTED state.

19. (canceled)

20. (canceled)

22. A network node configured to request measurements for fast setup, the network node being further configured to:

transmit, during a Random Access Channel, RACH, procedure, a message 4, Msg 4, to the wireless device, the Msg 4 being configured to comprise a trigger for performing a fast measurement, wherein the fast measurement is configured to be performed within at least one of;

i. less than 200 milliseconds in an intra-frequency carrier, and

ii. less than 480 milliseconds in an inter-frequency carrier, and

receive a measurement report, based on the fast measurement, from wireless device.

23. The network node according to claim 22, wherein the Msg 4 is configured to comprise at least one of:

xix. a frequency to perform the fast measurement on,

xx. information relating to which carriers to perform the fast measurement on,

xxi. which inter-frequency carrier or inter-frequency carriers to perform the fast measurement on,

xxii. a measurement period to perform the fast measurement,

xxiii. a bandwidth to perform the fast measurement on, and

xxiv. a measurement reporting criteria on surrounding cells.

24. The network node according to claim 23, wherein the measurement period is a layer 3, L3, filter length.

25. The network node according to claim 22, wherein the trigger in the Msg 4 is the measurement period, the bandwidth to perform the fast measurement on, or the measurement reporting criteria.

28. The network node according to claim 22, wherein the fast measurement is configured to be performed directly during the transition to a CONNECTED state.

26. (canceled)

27. (canceled)