IP Library Granted Patent US 12,452,874
Granted Patent B2
US 12,452,874 · App. 17/914,975 · Granted Oct 21, 2025

Method for monitoring physical downlink control channel, user terminal and readable storage medium

Inventors: Sicong Zhao (Shanghai, CN); Xinghang Gao (Shanghai, CN)
Assignee: SPREADTRUM COMMUNICATIONS (SHANGHAI) CO., LTD.
H04W72/23H04L27/26025H04W24/08H04W72/12
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Quick Facts
Patent No.
US 12,452,874
App. No.
17/914,975
Filed
Sep 27, 2022
Granted
Oct 21, 2025
Kind
B2
Examiner
AUNG, SAI
Art Unit
2416
USPC
370/329
Abstract

A physical downlink control channel monitoring method, a user terminal and a readable storage medium. The method comprises: receiving downlink control information in an nth slot; and when the downlink control information comprises switching indication information of a physical downlink control channel monitoring state, starting from an (n+X)th slot, executing a physical downlink control channel monitoring behavior according to a switched physical downlink control channel monitoring state, wherein n and X are both integers and X≥1. By using the solution, the switching of a monitoring behavior of a physical downlink control channel during scheduling of the same bandwidth part can be realized.

Claims (42)

1. A method for monitoring a physical downlink control channel, comprising:

receiving downlink control information in an n-th time slot; and

performing physical downlink control channel monitoring from a (n+X)-th time slot, based on a switched physical downlink control channel monitoring state, in a case that the downlink control information comprises switching indication information on a physical downlink control channel monitoring state; wherein n and X are both integers, and X is greater than or equal to 1;

wherein the switching indication information on the physical downlink control channel monitoring state comprises:

skipping all or part of the physical downlink control channel monitoring in a time period; and

switching a parameter of a physical downlink control channel search space.

2. The method for monitoring the physical downlink control channel according to claim 1 , wherein the value of X is determined based on a value of a minimum available scheduling delay activated and applied in a currently active downlink bandwidth part.

3. The method for monitoring the physical downlink control channel according to claim 2 , wherein the value of X is determined based on the value of the minimum available scheduling delay activated in the currently active downlink bandwidth part by:

in a case that the minimum available scheduling delay is greater than 0, the value of X is the minimum available scheduling delay, or a greater of the minimum available scheduling delay and Z, wherein a value of Z corresponds to a subcarrier spacing of the currently active downlink bandwidth part where the downlink control information is located; and

in a case that the minimum available scheduling delay is equal to 0, the value of X is 1 or Z.

4. The method for monitoring the physical downlink control channel according to claim 3 , wherein in a case that the subcarrier spacing of the currently active downlink bandwidth part where the downlink control information is located is 15 Khz or 30 Khz, the value of Z is 1; and in a case that the subcarrier spacing of the currently active downlink bandwidth part where the downlink control information is located is 60 Khz or 120 Khz, the value of Z is 2.

5. The method for monitoring the physical downlink control channel according to claim 1 , wherein the value of X is a fixed value.

6. The method for monitoring the physical downlink control channel according to claim 5 , wherein in a case that X is equal to 1, a skipping duration of the physical downlink control channel monitoring indicated in the downlink control information is greater than a minimum available scheduling delay.

7. The method for monitoring the physical downlink control channel according to claim 1 , wherein the skipping all or part of the physical downlink control channel monitoring in the time period comprises:

during a current discontinuous reception periodicity, not monitoring the physical downlink control channel.

8. A user equipment, comprising:

a memory; and

a processor,

wherein the memory stores a computer program executable on the processor, wherein the computer program, when being executed by the processor, causes the processor to:

receive downlink control information in an n-th time slot; and

perform physical downlink control channel monitoring from a (n+X)-th time slot, based on a switched physical downlink control channel monitoring state, in a case that the downlink control information comprises switching indication information on a physical downlink control channel monitoring state; wherein n and X are both integers, and X is greater than or equal to 1;

wherein the switching indication information on the physical downlink control channel monitoring state comprises:

skipping all or part of the physical downlink control channel monitoring in a time period; and

switching a parameter of a physical downlink control channel search space.

9. The user equipment according to claim 8 , wherein the value of X is determined based on a value of a minimum available scheduling delay activated and applied in a currently active downlink bandwidth part.

10. The user equipment according to claim 9 , wherein in a case that the minimum available scheduling delay is greater than 0, the value of X is the minimum available scheduling delay, or a greater of the minimum available scheduling delay and Z, wherein a value of Z corresponds to a subcarrier spacing of the currently active downlink bandwidth part where the downlink control information is located, and

in a case that the minimum available scheduling delay is equal to 0, the value of X is 1 or Z.

11. The user equipment according to claim 10 , wherein in a case that the subcarrier spacing of the currently active downlink bandwidth part where the downlink control information is located is 15 Khz or 30 Khz, the value of Z is 1; and in a case that the subcarrier spacing of the currently active downlink bandwidth part where the downlink control information is located is 60 Khz or 120 Khz, the value of Z is 2.

12. The user equipment according to claim 8 , wherein the value of X is a fixed value.

13. The user equipment according to claim 12 , wherein in a case that X is equal to 1, a skipping duration of the physical downlink control channel monitoring indicated in the downlink control information is greater than a minimum available scheduling delay.

14. A non-transitory computer readable storage medium having a computer program stored thereon, wherein the computer program, when being executed by a processor, causes the processor to:

receive downlink control information in an n-th time slot; and

perform physical downlink control channel monitoring from a (n+X)-th time slot, based on a switched physical downlink control channel monitoring state, in a case that the downlink control information comprises switching indication information on a physical downlink control channel monitoring state; wherein n and X are both integers, and X is greater than or equal to 1;

wherein the switching indication information on the physical downlink control channel monitoring state comprises:

skipping all or part of the physical downlink control channel monitoring in a time period; and

switching a parameter of a physical downlink control channel search space.

15. The non-transitory computer readable storage medium according to claim 14 , wherein the value of X is determined based on a value of a minimum available scheduling delay activated and applied in a currently active downlink bandwidth part.

16. The non-transitory computer readable storage medium according to claim 15 , wherein in a case that the minimum available scheduling delay is greater than 0, the value of X is the minimum available scheduling delay, or a greater of the minimum available scheduling delay and Z, wherein a value of Z corresponds to a subcarrier spacing of the currently active downlink bandwidth part where the downlink control information is located, and

in a case that the minimum available scheduling delay is equal to 0, the value of X is 1 or Z.

17. The non-transitory computer readable storage medium according to claim 16 , wherein in a case that the subcarrier spacing of the currently active downlink bandwidth part where the downlink control information is located is 15 Khz or 30 Khz, the value of Z is 1; and in a case that the subcarrier spacing of the currently active downlink bandwidth part where the downlink control information is located is 60 Khz or 120 Khz, the value of Z is 2.

18. The non-transitory computer readable storage medium according to claim 14 , wherein the value of X is a fixed value.

19. The non-transitory computer readable storage medium according to claim 18 , wherein in a case that X is equal to 1, a skipping duration of the physical downlink control channel monitoring indicated in the downlink control information is greater than a minimum available scheduling delay.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 27, 2022
From: ZHAO, SICONG; GAO, XINGHANG
To: SPREADTRUM COMMUNICATIONS (SHANGHAI) CO., LTD.
Reel/Frame 061228/0597 →
Priority Claims (1)
CN 202010232194.3 · Mar 27, 2020 · national
Continuity (1)
Related Publication 20230146873A1 · May 11, 2023
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