IP Library Granted Patent US 11,044,626
Granted Patent B2
US 11,044,626 · App. 16/487,688 · Granted Jun 22, 2021

Systems, methods, and apparatuses for configuring measurement gap per frequency group and per cell

Inventors: Candy Yiu (Portland, OR); Jie Cui (Santa Clara, CA); Yang Tang (San Jose, CA)
Assignee: APPLE INC.
H04W24/10H04L5/0007H04L5/0057H04W36/0088
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Quick Facts
Patent No.
US 11,044,626
App. No.
16/487,688
Granted
Jun 22, 2021
Kind
B2
Abstract

Systems, methods, and apparatuses may configure a measurement gap per frequency group and per cell. Measurement time and frequency resources may be associated with a carrier frequency, a cell, or both. Thus, a user equipment (UE) may determine the measurement configuration based on the carrier frequency, cell, or both. The number of synchronization sequences (SS) blocks in an SS burst may be based on the frequency band of the carrier frequency.

Claims (39)

1. An apparatus for a user equipment (UE), comprising:

a memory interface to access a message describing a measurement configuration;

a baseband processing unit to:

decode the message describing the measurement configuration, the message comprising time and frequency resources, and a duration for measurement gaps, wherein the time and frequency resources are carrier frequency dependent;

identify a frequency to be measured;

determine the time and frequency resources for the measurement gaps based on the frequency to be measured,

wherein the duration for measurement gaps is frequency dependent, wherein if the frequency to be measured is above 6 GHz the duration will be a first length, and if the frequency to be measured is below 6 GHz the duration will be a second length; and

perform a set of measurements according to the determined time and frequency resources and the duration for the measurement gaps.

2. The apparatus of claim 1 , wherein the baseband processing unit is further configured to generate a report from the UE to a radio access network (RAN) node providing results of the set of measurements.

3. The apparatus of claim 1 , wherein the message is a radio resource control (RRC) message.

4. The apparatus of claim 1 , wherein the baseband processing unit is further to determine the duration by identifying what frequency band group of a plurality of frequency band groups the frequency to be measured belongs to.

5. The apparatus of claim 4 , wherein the plurality of frequency band groups comprise a first frequency band corresponding with a first communications standard, and a second frequency band corresponding with a second communications standard.

6. An apparatus for a radio access network (RAN) node comprising:

a memory interface to send or receive information about measurement gap patterns for one or more cells;

a baseband processing unit to:

configure a cell to be associated with a measurement gap pattern;

generate a message for a user equipment (UE), the message indicating that a cell to be measured is configured according to the measurement gap pattern; and

prevent scheduling the UE during a measurement gap of the measurement gap pattern,

wherein the baseband processing unit is further to determine a duration of measurement gaps in the measurement gap pattern based on a carrier frequency used by the UE while performing signal measurements with the cell, wherein if the carrier frequency is above 6 GHz the duration will be a first length, and if the carrier frequency is below 6 GHz the duration will be a second length.

7. The apparatus of claim 6 , wherein the message associates a cell identifier with the measurement gap pattern.

8. The apparatus of claim 7 , wherein the cell identifier is a physical cell identifier (PCI).

9. The apparatus of claim 6 , wherein the message is part of a handover configuration procedure.

10. The apparatus of claim 6 , wherein the message is part of a measurement configuration procedure.

11. A method of performing signal strength measurements in a cellular network comprising:

configuring, by a radio access network (RAN) node, a measurement gap pattern for a cell and a carrier frequency;

configuring a duration of the gaps of the measurement gap pattern wherein the duration of the gaps is based on the carrier frequency, wherein if the carrier frequency is above 6 GHz the duration will be a first length, and if the carrier frequency is below 6 GHz the duration will be a second length;

generating an information element for a user equipment (UE) that is to measure signal strength with the cell using the carrier frequency, indicating that the cell on the carrier frequency has been configured with the measurement gap pattern;

avoiding scheduling the UE during gaps of the measurement gap pattern; and

processing a report from the UE providing results of measurements taken during the gaps of the measurement gap pattern.

12. The method of claim 11 , further comprising determining which band group the carrier frequency belongs to; and

configuring the gaps of the measurement gap pattern to have a duration associated with the band group to which the carrier frequency belongs.

13. A computer-readable storage medium that stores machine-readable instructions that, when executed by one or more processors of a radio access network (RAN) node, cause the one or more processors to perform operations comprising:

partition a frequency spectrum to form a first frequency band group and a second frequency band group, wherein the first frequency band group is above 6 GHz and the second frequency band group is at or below 6 GHz;

configure a first measurement gap for the first frequency band group and a second measurement gap for the second frequency band group;

generate an information element for a user equipment (UE), the information element informing the UE of a configuration for the first measurement gap and the second measurement gap; and

prevent scheduling the UE during the first measurement gap on frequencies within the first frequency band group and during the second measurement gap on frequencies within the second frequency band group.

14. The computer-readable storage medium of claim 13 , wherein to configure the first and second measurement gaps, a number of subframes for each measurement gap is defined.

15. The computer-readable storage medium of claim 13 , wherein the frequency spectrum is further partitioned to form a third frequency band group.

16. The computer-readable storage medium of claim 13 , wherein the first measurement gap is configured to not interrupt carriers in the second measurement gap.

Assignments (2)
CONFIRMATORY ASSIGNMENT Recorded Aug 13, 2020
From: INTEL IP CORPORATION
To: INTEL CORPORATION
Reel/Frame 053493/0272 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 25, 2020
From: INTEL CORPORATION
To: APPLE INC.
Reel/Frame 053065/0418 →