Communication method and electronic equipment
The disclosure relates to a 5 th generation (5G) or 6 th generation (6G) communication system for supporting a higher data transmission rate. A communication method and an electronic equipment are provided. The method includes receiving configuration information of periodical physical downlink control channel (PDCCH) monitoring, wherein within each cycle of the configuration comprises a first time window and/or a second time window, and according to the configuration information, performing PDCCH monitoring on type 3 common search space (CSS) and UE-specific search space (USS) in the first time window, and/or, skipping PDCCH monitoring on type 3 CSS and USS in the second time window. By the embodiments of the disclosure, the user equipment (UE) periodically performs PDCCH monitoring and/or skips PDCCH monitoring to achieve the objective of power-saving, and it is avoided that UE cannot timely receive scheduling information to thereby cause data transmission delay.
1 . A method performed by a user equipment (UE) in a communication system, the method comprising:
receiving, via radio resource control (RRC) signaling, configuration information of periodical physical downlink control channel (PDCCH) monitoring, wherein the configuration information comprises information on a first time window and information on a second time window, and wherein the first time window corresponds a time window in which the periodical PDCCH monitoring is performed and the second time window corresponds to a time window in which the periodical PDCCH monitoring is skipped;
performing the periodical PDCCH monitoring on type 3 common search space (CSS) and UE-specific search space (USS) in the first time window;
skipping the periodical PDCCH monitoring on type 3 CSS and USS in the second time window;
receiving downlink control information (DCI) for deactivating the configuration information;
after receiving the DCI:
stopping the performing of the periodical PDCCH monitoring in the first time window; and
stopping the skipping of the periodical PDCCH monitoring in the second time window.
2 . The method of claim 1 , wherein the configuration information includes at least one of:
a period;
a length of the first time window;
a length of the second time window;
a starting position of the first time window; or
a starting position of the second time window.
3 . The method of claim 1 , wherein the receiving of the configuration information of periodical PDCCH monitoring includes at least one of:
receiving UE-specific RRC signaling for indicating the configuration information; or
receiving UE-specific RRC signaling for indicating the configuration information, and receiving DCI for activating the configuration information, wherein a starting position of the first time window or the second time window is a position of a first preset interval after a corresponding DCI has been received.
4 . The method of claim 1 ,
wherein the receiving of the configuration information of periodical PDCCH monitoring includes receiving at least two pieces of configuration information of periodical PDCCH monitoring, and
wherein at least one of the performing of the periodical PDCCH monitoring on type 3 CSS and USS or the skipping of the periodical PDCCH monitoring on type 3 CSS and USS is based on the at least two pieces of configuration information.
5 . The method of claim 4 , wherein at least one of the following is satisfied:
in case that at least one configuration of at least two configurations is in the first time window, the periodical PDCCH monitoring is performed; or
in case that the at least two configurations are both in the second time window, the periodical PDCCH monitoring is skipped.
6 . The method of claim 4 , wherein the at least two pieces of configuration information are respectively employed for one of:
different data services;
different service cells, wherein the at least two pieces of configuration information respectively include index numbers of corresponding service cells;
different service cell groups, wherein the at least two pieces of configuration information respectively include index numbers of corresponding service cell groups;
different search spaces, wherein the at least two pieces of configuration information respectively include index numbers of corresponding search spaces;
different search space groups, wherein the at least two pieces of configuration information respectively include index numbers of corresponding search space groups; or
at least one of type 1 CSS, type 2 CSS, type 3 CSS, and USS.
7 . A user equipment (UE) in a communication system, the UE comprising:
a transceiver; and
a processor coupled with the transceiver and configured to:
receive, via radio resource control (RRC) signaling, configuration information of periodical physical downlink control channel (PDCCH) monitoring, wherein the configuration information comprises information on a first time window and information on a second time window, and wherein the first time window corresponds a time window in which the periodical PDCCH monitoring is performed and the second time window corresponds to a time window in which the periodical PDCCH monitoring is skipped;
perform the periodical PDCCH monitoring on type 3 common search space (CSS) and UE-specific search space (USS) in the first time window;
skip the periodical PDCCH monitoring on type 3 CSS and USS in the second time window;
receive downlink control information (DCI) for deactivating the configuration information;
after receiving the DCI:
stop the performing of the periodical PDCCH monitoring in the first time window; and
stop the skipping of the periodical PDCCH monitoring in the second time window.
8 . The UE of claim 7 , wherein the configuration information includes at least one of:
a period;
a length of the first time window;
a length of the second time window;
a starting position of the first time window; or
a starting position of the second time window.
9 . The UE of claim 7 , wherein the processor is further configured to perform at least one of:
receiving UE-specific RRC signaling for indicating the configuration information; or
receiving UE-specific RRC signaling for indicating the configuration information, and receiving DCI for activating the configuration information, wherein a starting position of the first time window or the second time window is a position of a first preset interval after a corresponding DCI has been received.
10 . The UE of claim 7 ,
wherein the processor is further configured to perform receiving at least two pieces of configuration information of periodical PDCCH monitoring, and
wherein at least one of the performing of the periodical PDCCH monitoring on type 3 CSS and USS or the skipping of the periodical PDCCH monitoring on type 3 CSS and USS is based on the at least two pieces of configuration information.
11 . The UE of claim 10 , wherein at least one of the following is satisfied:
in case that at least one configuration of at least two configurations is in the first time window, the periodical PDCCH monitoring is performed; or
in case that the at least two configurations are both in the second time window, the periodical PDCCH monitoring is skipped.
12 . The UE of claim 10 , wherein the at least two pieces of configuration information are respectively employed for one of:
different data services;
different service cells, wherein the at least two pieces of configuration information respectively include index numbers of corresponding service cells;
different service cell groups, wherein the at least two pieces of configuration information respectively include index numbers of corresponding service cell groups;
different search spaces, wherein the at least two pieces of configuration information respectively include index numbers of corresponding search spaces;
different search space groups, wherein the at least two pieces of configuration information respectively include index numbers of corresponding search space groups; or
at least one of type 1 CSS, type 2 CSS, type 3 CSS, and USS.
13 . A method performed by a base station in a communication system, the method comprising:
transmitting, to user equipment (UE) via radio resource control (RRC) signaling, configuration information of periodical physical downlink control channel (PDCCH) transmission, wherein the configuration information comprises information on a first time window and information on a second time window, and wherein the first time window corresponds a time window in which the periodical PDCCH transmission is performed and the second time window corresponds to a time window in which the periodical PDCCH transmission is skipped; and
performing the periodical PDCCH transmission to the UE on type 3 common search space (CSS) and UE-specific search space (USS) of the UE in the first time window;
skipping the periodical PDCCH transmission to the UE on type 3 CSS and USS in the second time window
transmitting, to the UE, downlink control information (DCI) for deactivating the configuration information;
after transmitting the DCI:
stopping performing of the periodical PDCCH transmission in the first time window; and
stopping the skipping of the periodical PDCCH transmission in the second time window.
14 . The method of claim 13 , wherein the configuration information includes at least one of:
a period;
a length of the first time window;
a length of the second time window;
a starting position of the first time window; or
a starting position of the second time window.
15 . The method of claim 13 , wherein the transmitting of the configuration information of periodical PDCCH monitoring includes at least one of:
transmitting, to the UE, UE-specific RRC signaling for indicating the configuration information; or
transmitting, to the UE, UE-specific RRC signaling for indicating the configuration information, and transmitting, to the UE, DCI for activating the configuration information, wherein a starting position of the first time window or the second time window is a position of a first preset interval after a corresponding DCI has been transmitted.
16 . The method of claim 13 ,
wherein the transmitting of the configuration information of periodical PDCCH monitoring includes transmitting at least two pieces of configuration information of periodical PDCCH monitoring, and
wherein at least one of the performing of the periodical PDCCH transmission on type 3 CSS and USS or the skipping of the periodical PDCCH transmission on type 3 CSS and USS is based on the at least two pieces of configuration information.
17 . A base station in a communication system, the base station comprising:
a transceiver; and
a processor coupled with the transceiver and configured to:
transmit, to user equipment (UE) via radio resource control (RRC) signaling, configuration information of periodical physical downlink control channel (PDCCH) transmission, wherein the configuration information comprises information on a first time window and information on a second time window, and wherein the first time window corresponds a time window in which the periodical PDCCH transmission is performed and the second time window corresponds to a time window in which the periodical PDCCH transmission is skipped; and
perform the periodical PDCCH transmission to the UE on type 3 common search space (CSS) and UE-specific search space (USS) of the UE in the first time window;
skip the periodical PDCCH transmission to the UE on type 3 CSS and USS in the second time window
transmit, to the UE, downlink control information (DCI) for deactivating the configuration information;
after transmitting the DCI:
stop performing of the periodical PDCCH transmission in the first time window; and
stop the skipping of the periodical PDCCH transmission in the second time window.
18 . The base station of claim 17 , wherein the configuration information includes at least one of:
a period;
a length of the first time window;
a length of the second time window;
a starting position of the first time window; or
a starting position of the second time window.
19 . The base station of claim 17 , wherein the processor is further configured to perform at least one of:
transmitting, to the UE, UE-specific RRC signaling for indicating the configuration information; or
transmitting, to the UE, UE-specific RRC signaling for indicating the configuration information, and transmitting, to the UE, DCI for activating the configuration information, wherein a starting position of the first time window or the second time window is a position of a first preset interval after a corresponding DCI has been transmitted.
20 . The base station of claim 17 ,
wherein the processor is further configured to transmit at least two pieces of configuration information of periodical PDCCH monitoring, and
wherein at least one of the performing of the periodical PDCCH transmission on type 3 CSS and USS or the skipping of the periodical PDCCH transmission on type 3 CSS and USS is based on the at least two pieces of configuration information.