Resource determining method and apparatus for uplink transmission
A method includes: when a band, in which a supplemental uplink (SUL) carrier is located, multiplexes a time-division duplex (TDD) band or a low-frequency frequency-division duplex (FDD) band, M time domain resources used by a terminal device to perform SUL transmission is determined from N time domain resources included in the SUL carrier, and indication information that indicates the M time domain resources is sent to the terminal device such that the terminal device can send an uplink signal and/or an uplink channel using the M time domain resources. Further, a network device may configure an available time domain resource used for uplink transmission for the SUL carrier using a system information block (SIB), Radio Resource Control (RRC) dedicated signaling, or download control information (DCI)/media access control (MAC) control element (CE).
1 . A method comprising:
sending, to a terminal device, first indication information in a system information block (SIB), wherein the first indication information indicates M time domain resources of a first uplink carrier and K flexible time domain resources, wherein the first uplink carrier supports supplementary uplink (SUL) transmission, wherein the M time domain resources are in N time domain resources comprised in the first uplink carrier and are for the SUL transmission, wherein the N time domain resources comprise an uplink resource or a flexible time domain resource, wherein each of the N time domain resources comprises a slot or a symbol, wherein K<N, and wherein M<N; and
receiving a first uplink signal or information indicating an uplink channel using the M time domain resources and the K flexible time domain resources.
2 . The method of claim 1 , wherein the flexible time domain resource is for the SUL transmission or downlink transmission.
3 . The method of claim 1 , wherein a band in which the first uplink carrier is located comprises a first resource for downlink transmission, and wherein the band is a time-division duplex (TDD) band.
4 . The method of claim 1 , wherein a slot or a symbol for use by the first uplink carrier is configured as a subset of uplink slots or symbols and/or flexible slots or symbols to which a band in which the first uplink carrier is located belongs.
5 . The method of claim 1 , further comprising sending, to the terminal device, second indication information indicating L time domain resources that are in the K flexible time domain resources and that are for the SUL transmission, wherein the L time domain resources comprise L0 uplink resources and L1 flexible time domain resources, wherein 0≤L≤K, and wherein receiving the first uplink signal or the uplink channel comprises receiving the first uplink signal or the uplink channel using the L time domain resources.
6 . The method of claim 5 , wherein the second indication information is carried in Radio Resource Control (RRC) dedicated signaling.
7 . The method of claim 5 , wherein the second indication information is carried in downlink control information (DCI).
8 . A method comprising:
receiving, from a network device, first indication information in a system information block (SIB), wherein the first indication information indicates M time domain resources of a first uplink carrier and K flexible time domain resources, wherein the first uplink carrier supports supplementary uplink (SUL) transmission, wherein the M time domain resources are in N time domain resources comprised in the first uplink carrier and are for the SUL transmission, wherein the N time domain resources comprise an uplink resource or a flexible time domain resource, wherein each of the N time domain resources comprises a slot or a symbol, wherein K<N, and wherein M<N; and
sending a first uplink signal or information indicating an uplink channel based on the first indication information using the M time domain resources and the K flexible time domain resources.
9 . The method of claim 8 , wherein the flexible time domain resource is for the SUL transmission or downlink transmission.
10 . The method of claim 8 , wherein a band in which the first uplink carrier is located comprises a first resource for downlink transmission, and wherein the band is a time-division duplex (TDD) band.
11 . The method of claim 8 , wherein a slot or a symbol for use by the first uplink carrier is configured as a subset of uplink slots or symbols and/or flexible slots or symbols to which a band in which the first uplink carrier is located belongs.
12 . The method of claim 8 , further comprising receiving, from the network device, second indication information indicating L time domain resources that are in the K flexible time domain resources and that are for the SUL transmission, wherein 0≤L≤K, wherein the L time domain resources comprise L0 uplink resources and L1 flexible time domain resources, and wherein sending the first uplink signal or the uplink channel comprises sending the first uplink signal or the uplink channel using the L time domain resources.
13 . The method of claim 12 , wherein the second indication information is carried in Radio Resource Control (RRC) dedicated signaling.
14 . The method of claim 12 , wherein the second indication information is carried in downlink control information (DCI).
15 . A communication apparatus comprising:
a memory configured to store instructions; and
a processor coupled to the memory and configured to execute the instructions to cause the communication apparatus to:
send, to a terminal device, first indication information in a system information block (SIB), wherein the first indication information indicates M time domain resources of a first uplink carrier and K flexible time domain resources, wherein the first uplink carrier supports supplementary uplink (SUL) transmission, wherein the M time domain resources are in N time domain resources comprised in the first uplink carrier and are for the SUL transmission, wherein the N time domain resources comprise an uplink resource or a flexible time domain resource, wherein each of the N time domain resources comprises a slot or a symbol, wherein K<N, and wherein M<N; and
receive a first uplink signal or information indicating an uplink channel using the M time domain resources and the K flexible time domain resources.
16 . The communication apparatus of claim 15 , wherein the flexible time domain resource is for the SUL transmission or downlink transmission.
17 . The communication apparatus of claim 15 , wherein a band in which the first uplink carrier is located comprises a first resource for downlink transmission, and wherein the band is a time division duplex (TDD) band.
18 . The communication apparatus of claim 15 , wherein a slot and/or a symbol used by the first uplink carrier is configured as a subset of uplink slots or symbols or flexible slots or symbols to which a band in which the first uplink carrier is located belongs.
19 . The communication apparatus of claim 15 , wherein a slot and/or a symbol used by the first uplink carrier is configured as a subset of uplink slots or symbols and flexible slots or symbols to which a band in which the first uplink carrier is located belongs.
20 . The communication apparatus of claim 15 , wherein the processor is further configured to execute the instructions to cause the communication apparatus to:
send, to the terminal device, second indication information indicating L time domain resources that are in the K flexible time domain resources and that are for the SUL transmission, wherein the L time domain resources comprise L0 uplink resources and L1 flexible time domain resources, and wherein 0≤L≤K; and
receive the first uplink signal or the uplink channel using the L time domain resources.