Discarding data corresponding to a conditional handover

Patent metadata

Field	Value
Publication number	US-2020029251-A1
Application number	US-201716496702-A
Country	US
Kind code	A1
Filing date	Mar 23, 2017
Priority date	Mar 23, 2017
Publication date	Jan 23, 2020
Grant date	—

Abstract

Apparatuses, methods, and systems are disclosed for discarding data corresponding to a conditional handover. One apparatus ( 300 ) includes a transmitter ( 310 ) that transmits ( 602 ) information corresponding to a conditional handover to multiple candidate cells. The information indicates to one or more candidate cells of the multiple candidate cells a time to discard data or to discard the data.

First claim

1 . An apparatus comprising:
a transmitter that transmits information corresponding to a conditional handover to a plurality of candidate cells, wherein the information indicates to one or more candidate cells of the plurality of candidate cells a time to discard data or to discard the data.

2 . The apparatus of claim 1 , wherein the information comprises a message indicating to the one or more candidate cells to discard the data.

3 . The apparatus of claim 2 , wherein the transmitter transmits the message to the one or more candidate cells indicating to discard the data in response to a receiver of the apparatus receiving an indication that handover is complete.

4 . The apparatus of claim 1 , wherein the information comprises a timer that upon expiration causes the data to be discarded.

5 . The apparatus of claim 4 , wherein the timer starts in response to the plurality of candidate cells receiving the information.

6 . The apparatus of claim 4 , wherein the timer stops in response to a candidate cell of the plurality of candidate cells being selected.

7 . The apparatus of claim 1 , wherein the transmitter transmits the data to the one or more candidate cells in response to transmitting the handover command to a remote unit.

8 . A method comprising:
transmitting information corresponding to a conditional handover to a plurality of candidate cells, wherein the information indicates to one or more candidate cells of the plurality of candidate cells a time to discard data or to discard the data.

9 . The method of claim 8 , wherein the information comprises a message indicating to the one or more candidate cells to discard the data.

10 . The method of claim 9 , further comprising transmitting the message to the one or more candidate cells indicating to discard the data in response to receiving an indication that handover is complete.

11 . The method of claim 8 , wherein the information comprises a timer that upon expiration causes the data to be discarded.

12 . The method of claim 11 , wherein the timer starts in response to the plurality of candidate cells receiving the information.

13 . The method of claim 11 , wherein the timer stops in response to a candidate cell of the plurality of candidate cells being selected.

14 . (canceled)

15 . An apparatus comprising:
a receiver that receives information corresponding to a conditional handover, wherein the information indicates a time for the apparatus to discard data or to discard the data.

16 . (canceled)

17 . (canceled)

18 . (canceled)

19 . (canceled)

20 . The apparatus of claim 15 , wherein the receiver receives the data.

21 . A method comprising:
receiving information corresponding to a conditional handover, wherein the information indicates a time to discard data or to discard the data.

22 . The method of claim 21 , wherein the information comprises a message indicating to discard the data.

23 . The method of claim 21 , the information comprises a timer that upon expiration discards the data.

24 . The method of claim 23 , wherein the timer starts in response to receiving the information.

25 . The method of claim 23 , wherein the timer stops in response to being selected as a target cell.

26 . (canceled)

Assignees

• Motorola Mobility Llc

Inventors

• Wu Lianhai
• Yan Zhi
• Zhu Chenxi
• Wang Haiming

Classifications

• H04W36/385

  of the core network · CPC title

• H04W36/0016 Primary

  Hand-off preparation specially adapted for end-to-end data sessions · CPC title

• H04W36/0083

  Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists · CPC title

• H04W36/08

  Reselecting an access point · CPC title

• H04W36/362

  Conditional handover · CPC title