Using wake up signal to skip paging dci

Patent metadata

Field	Value
Publication number	US-2020367199-A1
Application number	US-201716763605-A
Country	US
Kind code	A1
Filing date	Nov 17, 2017
Priority date	Nov 17, 2017
Publication date	Nov 19, 2020
Grant date	—

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

1 - 48 . (canceled)

49 . A method, comprising:
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, 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 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.

50 . 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 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 in response to the indication indicating that the user equipment is to skip decoding of the at least one subsequent channel, skip decoding of the at least one subsequent channel.

51 . The apparatus of claim 50 , and the one or more memories and the computer program code are further configured to, with the one processor, cause the apparatus to:
decode the second channel carrying the paging message based on a set of paging characteristics without decoding the first channel carrying the downlink control information.

52 . The apparatus of claim 51 , 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.

53 . The apparatus of claim 51 , wherein at least one of:
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 are defined in system information; and the set of paging characteristics are a predefined set of paging characteristics stored in a memory of the user equipment.

54 . The apparatus of claim 51 , 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.

55 . The apparatus of claim 51 and the one or more memories and the computer program code are further configured to, with the one processor, cause the apparatus to determine the set of paging characteristics based on the signal without performing a cyclic redundancy check on the signal.

56 . The apparatus of claim 50 , 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 carrying the paging message; and one of at least three different predefined paging message configurations.

57 . The apparatus of claim 50 , wherein the decoding of only the first channel is skipped.

58 . The apparatus of claim 50 , wherein the decoding of the at least one subsequent channel is skipped based on at least one event.

59 . The apparatus of claim 58 , wherein the skipping of decoding of the at least one subsequent channel comprises skipping decoding of the first channel and the second channel based on the at least one event.

60 . The apparatus of claim 58 , 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 processor, cause the apparatus to:
determine, by the user equipment, the at least one event from a plurality of events corresponding to the information.

61 . The apparatus of claim 58 , wherein the at least one event comprises receiving an indication of a change in system information.

62 . The apparatus of claim 58 , wherein the at least one event comprises receiving an indication of a change of content of a Multicast Control Channel.

63 . The apparatus of claim 50 , and the one or more memories and the computer program code are further configured to, with the one processor, cause the apparatus:
in response to the indication indicating that the user equipment is not to skip decoding of the at least one subsequent channel, to decode the first channel carrying the downlink control information; and to use the downlink control information to decode the second channel carrying the paging message.

64 . The apparatus of claim 50 , 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 processor, cause the apparatus to perform a random access procedure with a base station based on the paging message.

65 . 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:
determine, by a base station, whether at least one user equipment is to skip 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 in response to the indication indicating that the at least one user equipment is to skip decoding of the at least one subsequent channel, transmit an indication to the at least one user equipment either before or during a paging occasion to cause the at least one user equipment to skip decoding of the at least one subsequent channel.

66 . 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 49 .

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

• Y02D30/70

  in wireless communication networks · CPC title

• H04W52/0229

  where the received signal is a wanted signal · 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