Indication of energy level for resynchronization signal

Patent metadata

Field	Value
Publication number	US-12574871-B2
Application number	US-201917754593-A
Country	US
Kind code	B2
Filing date	Oct 11, 2019
Priority date	Oct 11, 2019
Publication date	Mar 10, 2026
Grant date	Mar 10, 2026

Abstract

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive information indicating an offset of an energy level of a resynchronization signal (RSS) of a neighbor cell relative to a cell-specific reference signal (CRS) of the neighbor cell; and perform a measurement based at least in part on the offset. Numerous other aspects are provided.

First claim

What is claimed is:

1 . A method of wireless communication performed by a user equipment (UE), comprising:
receiving, in a system information block type 4 (SIB-4), a neighbor cell list including information indicating one of a plurality of values including a first value, indicating an offset of an energy level of a resynchronization signal (RSS) of a neighbor cell relative to a cell-specific reference signal (CRS) of the neighbor cell, and a second value indicating not to perform a measurement; and based at least in part on the neighbor cell list, performing the measurement or refraining from performing the measurement.

2 . The method of claim 1 ,
wherein the energy level is an energy per resource element (EPRE) of the RSS of the neighbor cell relative to an EPRE of the CRS of the neighbor cell.

3 . The method of claim 1 ,
wherein the neighbor cell list is provided via a serving cell of the UE.

4 . The method of claim 1 ,
wherein the neighbor cell list comprises a plurality of neighbor cells, wherein, for each of the plurality of neighbor cells, the information indicates one of the plurality of values.

5 . The method of claim 1 ,
wherein the first value indicates a difference between the energy level of the RSS of the neighbor cell and an energy level of the CRS of the neighbor cell.

6 . The method of claim 5 ,
wherein the first value comprises a quantization of the difference between the energy level of the RSS of the neighbor cell and the energy level of the CRS of the neighbor cell.

7 . The method of claim 1 ,
wherein a range of the offset is based at least in part on at least one of:
a power boost parameter of the RSS,
a number of CRS ports used by the neighbor cell,
a power boost parameter of the CRS of the neighbor cell,
a capability signaling of the neighbor cell, or
a measurement object configuration.

8 . The method of claim 1 ,
wherein the measurement is performed when the offset is within a configured range.

9 . The method of claim 1 ,
wherein the first value indicates that the offset is outside of a configured range and that the measurement is not to be performed.

10 . The method of claim 1 ,
wherein performing the measurement or refraining from performing the measurement comprises:
combining an RSS-based measurement and a CRS-based measurement to determine the measurement.

11 . The method of claim 10 ,
wherein combining the RSS-based measurement and the CRS-based measurement to determine the measurement is based at least in part on the offset being within a range.

12 . The method of claim 1 , wherein performing the measurement or refraining from performing the measurement comprises:
when the neighbor cell is associated with a different frequency than a serving cell of the UE, performing the measurement based at least in part on the offset and a frequency offset.

13 . A method of wireless communication performed by a network node, comprising:
receiving, from a neighbor network node associated with a neighbor cell, information indicating one of a plurality of values including a first value, an offset of an energy level of a resynchronization signal (RSS) of the neighbor cell relative to a cell-specific reference signal (CRS) of the neighbor cell, and a second value indicating not to perform a measurement; and transmitting, in a system information block type 4 (SIB-4), a neighbor cell list including the information.

14 . The method of claim 13 ,
wherein the energy level is an energy per resource element (EPRE) of the RSS of the neighbor cell relative to an EPRE of the CRS of the neighbor cell.

15 . The method of claim 13 ,
wherein the neighbor cell list comprises a plurality of neighbor cells, wherein, for each of the plurality of neighbor cells, the information indicates one of the plurality of values.

16 . The method of claim 13 ,
wherein the first value indicates a difference between the energy level of the RSS of the neighbor cell and an energy level of the CRS of the neighbor cell.

17 . The method of claim 16 ,
wherein the first value comprises a quantization of the difference between the energy level of the RSS of the neighbor cell and the energy level of the CRS of the neighbor cell.

18 . The method of claim 13 ,
wherein a range of the offset is based at least in part on at least one of:
a power boost parameter of the RSS,
a number of CRS ports used by the neighbor cell, or
a power boost parameter of the CRS of the neighbor cell,
a capability signaling of the neighbor cell, or
a measurement object configuration.

19 . The method of claim 13 , further comprising:
configuring a user equipment (UE) to perform the measurement when the offset is within a configured range.

20 . The method of claim 13 ,
wherein the first value indicates that the offset is outside of a configured range and that the measurement is not to be performed.

21 . A user equipment (UE) for wireless communication, comprising:
one or more memories; and one or more processors, coupled to the one or more memories, which are configured, individually or in any combination, to:
receive, in a system information block type 4 (SIB-4), a neighbor cell list including information indicating one of a plurality of values including a first value, indicating an offset of an energy level of a resynchronization signal (RSS) of a neighbor cell relative to a cell-specific reference signal (CRS) of the neighbor cell, and a second value indicating not to perform a measurement; and
based at least in part on the neighbor cell list, perform the measurement or refrain from performing the measurement.

22 . A network node for wireless communication, comprising:
one or more memories; and one or more processors, coupled to the one or more memories, which are configured, individually or in any combination, to:
receive, from a neighbor network node associated with a neighbor cell, information indicating one of a plurality of values including a first value, an offset of an energy level of a resynchronization signal (RSS) of the neighbor cell relative to a cell-specific reference signal (CRS) of the neighbor cell, and a second value indicating not to perform a measurement; and
transmit, in a system information block type 4 (SIB-4), a neighbor cell list including the information.

23 . The UE of claim 21 ,
wherein a range of the offset is based at least in part on at least one of:
a power boost parameter of the RSS,
a number of CRS ports used by the neighbor cell,
a power boost parameter of the CRS of the neighbor cell,
a capability signaling of the neighbor cell, or
a measurement object configuration.

24 . The UE of claim 21 ,
wherein the measurement is performed when the offset is within a configured range.

25 . The UE of claim 21 ,
wherein the first value indicates that the offset is outside of a configured range and that the measurement is not to be performed.

26 . The network node of claim 22 ,
wherein a range of the offset is based at least in part on at least one of at least one of:
a power boost parameter of the RSS,
a number of CRS ports used by the neighbor cell,
a power boost parameter of the CRS of the neighbor cell,
a capability signaling of the neighbor cell, or
a measurement object configuration.

27 . The method of claim 5 , wherein the quantization

Assignees

• Qualcomm Inc

Inventors

• Sengupta Ayan
• Liu Le
• Rico Alvarino Alberto
• Wei Chao

Classifications

• H04W52/36

  with a discrete range or set of values, e.g. step size, ramping or offsets · CPC title

• H04W24/10

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

• H04L5/0051

  of dedicated pilots, i.e. pilots destined for a single user or terminal · CPC title

• H04W52/325 Primary

  Power control of control or pilot channels · CPC title

• H04W36/0085

  Hand-off measurements · CPC title