Communication method and apparatus
According to embodiments, after a second communication device determines first information, the second communication device sends the first information to a first communication device, so that the first communication device determines second DRX configuration information between the first communication device and the second communication device based on the first information. The first information includes first DRX configuration information and/or first SL resource configuration information from the second communication device. When the first communication device determines the second DRX configuration information, the first communication device refers to the first information sent by the second communication device, so that when the first communication device determines a configuration parameter of the second DRX configuration information, the first communication device may refer to the first information that has been configured by the second communication device.
1 . A method applied to a second communication device or a chip of the second communication device, comprising:
determining first information, wherein the first information comprises at least one of first discontinuous reception (DRX) configuration information or first sidelink (SL) resource configuration information, and wherein the first information is associated with the second communication device;
sending, to a first communication device, the first information, the first information used for determining second DRX configuration information based on the first information; and
receiving, from the first communication device, the second DRX configuration information, wherein the second DRX configuration information is between the first communication device and the second communication device, and wherein the second DRX configuration information is associated with the first information.
2 . The method according to claim 1 , wherein the first DRX configuration information comprises at least one of first SL DRX configuration information or Uu DRX configuration information.
3 . The method according to claim 1 , wherein the first DRX configuration information does not comprise the second DRX configuration information.
4 . The method according to claim 1 , wherein the method further comprises:
receiving, from the first communication device, first indication information, wherein the first indication information indicates a manner in which the second communication device sends the first information, and wherein the manner comprises:
actively providing the first information to the first communication device,
not actively providing the first information to the first communication device, or
stopping providing the first information to the first communication device.
5 . The method according to claim 1 , wherein the method further comprises:
receiving, from the first communication device, first request information, wherein the first request information requests the second communication device to send the first information to the first communication device.
6 . The method according to claim 1 , wherein the second communication device communicates with the first communication device through a Uu interface, and the first DRX configuration information comprises one or more of:
fifth DRX configuration information of the second communication device or a third identifier,
wherein the third identifier comprises a destination identifier, a source identifier, a link identifier, a connection identifier, a source identifier-destination identifier pair, a resource pool identifier, a configuration authorization identifier, or a service identifier corresponding to the fifth DRX configuration information.
7 . The method according to claim 1 , wherein the second communication device sends the first information based on at least one of:
that the first information changes, or
that a first timer expires or the first timer does not run.
8 . The method according to claim 1 , wherein the method further comprises:
indicating, by an access stratum (AS) layer of the second communication device, third indication information to an upper layer of the second communication device, wherein the third indication information comprises third DRX configuration information between the second communication device and a third communication device.
9 . A communication apparatus, comprising:
a processor; and
a non-transitory computer readable storage medium storing instructions that, when executed by the processor, cause the communication apparatus to perform operations including:
determining first information, wherein the first information comprises at least one of first discontinuous reception (DRX) configuration information or first sidelink (SL) resource configuration information, and wherein the first information is associated with the communication apparatus;
sending, to a first communication device, the first information, the first information used for determining second DRX configuration information based on the first information; and
receiving, from the first communication device, the second DRX configuration information, wherein the second DRX configuration information is between the first communication device and the communication apparatus, and wherein the second DRX configuration information is associated with the first information.
10 . The communication apparatus according to claim 9 , wherein the first DRX configuration information comprises at least one of first SL DRX configuration information or Uu DRX configuration information.
11 . The communication apparatus according to claim 9 , wherein the first DRX configuration information does not comprise the second DRX configuration information.
12 . The communication apparatus according to claim 9 , the operations further comprising:
receiving, from the first communication device, first indication information, wherein the first indication information indicates a manner in which the communication apparatus sends the first information, and wherein the manner comprises:
actively providing the first information to the first communication device,
not actively providing the first information to the first communication device, or
stopping providing the first information to the first communication device.
13 . The communication apparatus according to claim 9 , the operations further comprising:
receiving, from the first communication device, first request information, wherein the first request information requests the communication apparatus to send the first information to the first communication device.
14 . The communication apparatus according to claim 9 , wherein the communication apparatus communicates with the first communication device through a Uu interface, and the first DRX configuration information comprises one or more of:
fifth DRX configuration information of the communication apparatus or a third identifier,
wherein the third identifier comprises a destination identifier, a source identifier, a link identifier, a connection identifier, a source identifier-destination identifier pair, a resource pool identifier, a configuration authorization identifier, or a service identifier corresponding to the fifth DRX configuration information.
15 . The communication apparatus according to claim 9 , wherein the communication apparatus sends the first information based on at least one of:
that the first information changes, or
that a first timer expires or the first timer does not run.
16 . The communication apparatus according to claim 9 , the operations further comprising:
indicating, by an access stratum (AS) layer of the communication apparatus, third indication information to an upper layer of the communication apparatus, wherein the third indication information comprises third DRX configuration information between the communication apparatus and a third communication device.
17 . A method applied to a second communication device or a chip of the second communication device, comprising:
determining that at least one of following conditions is met:
that first information changes, or that a first timer expires or the first timer does not run;
sending the first information, wherein the first information is used for determining second sidelink (SL) discontinuous reception (DRX) configuration information between a first communication device and the second communication device; and
receiving, from the first communication device, the second SL DRX configuration information, wherein the second SL DRX configuration information is between the first communication device and the second communication device, and wherein the second SL DRX configuration information is associated with the first information.
18 . The method according to claim 17 , further comprising:
starting the first timer when the first information is sent to the first communication device or after the first information is sent to the first communication device.