Using wake up signal to skip paging DCI

Patent metadata

Field	Value
Publication number	US-11076381-B2
Application number	US-201716763605-A
Country	US
Kind code	B2
Filing date	Nov 17, 2017
Priority date	Nov 17, 2017
Publication date	Jul 27, 2021
Grant date	Jul 27, 2021

Abstract

A method is provided including receiving, by a user equipment, a signal either before or during a paging occasion comprising an indication indicating whether the user equipment is to skip decoding of at least one subsequent channel of a plurality of subsequent channels associated with a paging message. The plurality of subsequent channels include: a first channel carrying downlink control information for the paging message, and a second channel carrying the paging message. In response to the indication indicating that the user equipment is to skip decoding of the at least one subsequent channel, skipping decoding of the at least one subsequent channel.

First claim

What is claimed is:

1. A method, comprising:
receiving, by a user equipment, a signal either before or during a paging occasion comprising an indication for indicating whether the user equipment is to skip decoding of at least one subsequent channel of a plurality of subsequent channels associated with a paging message, wherein the plurality of subsequent channels comprise: a first channel carrying downlink control information for the paging message, and a second channel carrying the paging message; and
decoding the second channel based on a set of paging characteristics without decoding of the first channel, in response to the indication indicating that the user equipment is to skip decoding of the first channel.

2. A computer program product comprising a non-transitory computer-readable storage medium bearing computer program code embodied therein for use with a computer, the computer program code comprising code for performing the method of claim 1 .

3. The method of claim 1 , wherein the indication is a single bit of information such that the information indicates whether the user equipment is to skip decoding of the first channel.

4. The method of claim 1 , wherein at least one of the following options applies:
the set of paging characteristics is the same as a set of characteristics used in a previous paging message successfully received by the user equipment;
the set of paging characteristics is defined in system information; and
the set of paging characteristics is a predefined set of paging characteristics stored in a memory of the user equipment.

5. The method of claim 1 , wherein the set of paging characteristics comprises at least one of:
a resource block assignment;
a modulation and coding scheme;
a number of repetitions; and
a downlink control information subframe repetition number.

6. The method of claim 1 , and the method further comprising determining the set of paging characteristics based on the signal without performing a cyclic redundancy check on the signal.

7. An apparatus comprising one or more processors and one or more memories including computer program code, the one or more memories and the computer program code are configured to, with the one or more processors, cause the apparatus to perform at least the following:
receive, by a user equipment, a signal either before or during a paging occasion comprising an indication for indicating whether the user equipment is to skip decoding of at least one subsequent channel of a plurality of subsequent channels associated with a paging message, wherein the plurality of subsequent channels comprise: a first channel carrying downlink control information for the paging message, and a second channel carrying the paging message; and
decode the second channel based on a set of paging characteristics without decoding of the first channel, in response to the indication indicating that the user equipment is to skip decoding of the first channel.

8. The apparatus of claim 7 , wherein the indication is a single bit of information such that the information indicates whether the user equipment is to skip decoding of the first channel.

9. The apparatus of claim 7 , wherein at least one of the following options applies:
the set of paging characteristics is the same as a set of characteristics used in a previous paging message successfully received by the user equipment;
the set of paging characteristics is defined in system information; and
the set of paging characteristics is a predefined set of paging characteristics stored in a memory of the user equipment.

10. The apparatus of claim 7 , wherein the set of paging characteristics comprises at least one of:
a resource block assignment;
a modulation and coding scheme;
a number of repetitions; and
a downlink control information subframe repetition number.

11. The apparatus of claim 7 and the one or more memories and the computer program code are further configured to, with the one more processors, cause the apparatus to determine the set of paging characteristics based on the signal without performing a cyclic redundancy check on the signal.

12. The apparatus of claim 7 , wherein the indication is at least two bits of information, and wherein the information indicates at least one of:
the user equipment is to decode the first channel; and
one of at least three different predefined paging message configurations.

13. The apparatus of claim 7 , wherein the decoding of the at least the first channel is skipped based on at least one event.

14. The apparatus of claim 13 , wherein the decoding of the first channel and the second channel is skipped based on the at least one event.

15. The apparatus of claim 13 , wherein the indication comprises at least two bits of information, and the one or more memories and the computer program code are further configured to, with the one or more processors, cause the apparatus to:
determine, by the user equipment, the at least one event from a plurality of events corresponding to the information.

16. The apparatus of claim 13 , wherein the at least one event comprises receiving an indication of a change in system information.

17. The apparatus of claim 13 , wherein the at least one event comprises receiving an indication of a change of content of a Multicast Control Channel.

18. The apparatus of claim 7 , and the one or more memories and the computer program code are further configured to, with the one or more processors, cause the apparatus:
in response to the indication indicating that the user equipment is not to skip decoding of the first channel, to decode the first channel; and
to use the downlink control information to decode the second channel.

19. The apparatus of claim 7 , wherein the user equipment is initially in an idle mode when the signal is received, and the one or more memories and the computer program code are further configured to, with the one or more processors, cause the apparatus to perform a random access procedure with a base station based on the paging message.

20. An apparatus comprising one or more processors and one or more memories including computer program code, the one or more memories and the computer program code are configured to, with the one or more processors, cause the apparatus to perform at least the following:
transmit, to a user equipment, a signal either before or during a paging occasion comprising an indication for indicating whether the user equipment is to skip decoding of at least one subsequent channel of a plurality of subsequent channels associated with a paging message, wherein the plurality of subsequent channels comprise: a first channel carrying downlink control information for the paging message, and a second channel carrying the paging message; and
transmit the second channel based on a set of paging characteristics, in response to the indication indicating that the user equipment is to skip decoding of the first channel.

Assignees

• Nokia Technologies Oy

Inventors

• Bhatoolaul David
• Mangalvedhe Nitin
• Baker Matthew
• Ratasuk Rapeepat
• Yao Chunhai

Classifications

• H04W72/23

  in the downlink direction of a wireless link, i.e. towards a terminal · CPC title

• H04W52/028

  switching on or off only a part of the equipment circuit blocks · CPC title

• H04W52/0216 Primary

  using a pre-established activity schedule, e.g. traffic indication frame · CPC title

• H04W76/28

  Discontinuous transmission [DTX]; Discontinuous reception [DRX] · CPC title

• Y02D30/70

  in wireless communication networks · CPC title