DEFAULT BEAM FOR COMMUNICATION NETWORKS
Methods, systems, and devices for wireless communications are described. A user equipment (UE) may determine an inactivity timer associated with a first set of one or more beams used for communicating with a network entity associated with a satellite has expired. The UE may identify location information corresponding to the location of the UE with respect to the network entity. The UE may identify beam geometry information for one or more beams associated with the network entity. For example, the UE may receive the beam geometry information from the network entity. The UE may process the location information and the beam geometry information to identify a second set of one or more beams, the second set different than the first set. The UE and the network entity may communicate according to the second set of one or more beams.
1 . An apparatus for wireless communication at a user equipment (UE), comprising:
one or more memories; and
one or more processors coupled with the one or more memories and configured to cause the UE to:
receive an indication of a sequence of a plurality of bandwidth parts, each bandwidth part of the sequence of the plurality of bandwidth parts associated with at least one of location information or timing information, the location information corresponding to a location of the UE;
switch from a first bandwidth part to a second bandwidth part of the sequence of the plurality of bandwidth parts based at least in part on at least one of the location information or the timing information; and
communicate using a beam of a set of one or more beams, the beam corresponding to the second bandwidth part of the sequence of the plurality of bandwidth parts.
2 . The apparatus of claim 1 , wherein the set of one or more beams is a sequence of beams.
3 . The apparatus of claim 2 , wherein the one or more processors are configured to cause the UE to:
map each beam in the sequence of beams to a corresponding bandwidth part of the sequence of the plurality of bandwidth parts.
4 . The apparatus of claim 1 , wherein the first bandwidth part and the second bandwidth part are in the same beam.
5 . The apparatus of claim 1 , wherein, to switch from the first bandwidth part to the second bandwidth part, the one or more processors are further configured to cause the UE to:
switch from a second beam of the set of one or more beams to the beam.
6 . The apparatus of claim 1 , wherein, the one or more processors are further configured to cause the UE to:
obtain beam geometry information for the set of one or more beams, wherein the switch from the first bandwidth part to the second bandwidth part is based at least in part on the beam geometry information.
7 . The apparatus of claim 6 , wherein, to obtain the beam geometry information, the one or more processors are further configured to cause the UE to:
calculate one or more parameters associated with the beam geometry information based on an altitude of a satellite, a speed of the satellite, a direction of the set of one or more beams, an angular width of the set of one or more beams, or a combination thereof.
8 . An apparatus for wireless communication at a network entity, comprising:
one or more memories; and
one or more processors coupled with the one or more memories and configured to cause the network entity to:
transmit an indication of a sequence of a plurality of bandwidth parts, each bandwidth part of the sequence of the plurality of bandwidth parts associated with at least one of location information or timing information, the location information corresponding to a location of a user equipment (UE);
switch from a first bandwidth part to a second bandwidth part of the sequence of the plurality of bandwidth parts based at least in part on at least one of the location information or the timing information; and
communicate using a beam of a set of one or more beams, the beam corresponding to the second bandwidth part of the sequence of the plurality of bandwidth parts.
9 . The apparatus of claim 8 , wherein the set of one or more beams is a sequence of beams.
10 . The apparatus of claim 9 , wherein the one or more processors are configured to cause the network entity to:
map each beam in the sequence of beams to a corresponding bandwidth part of the sequence of the plurality of bandwidth parts.
11 . The apparatus of claim 8 , wherein the first bandwidth part and the second bandwidth part are in the same beam.
12 . The apparatus of claim 8 , wherein, to switch from the first bandwidth part to the second bandwidth part, the one or more processors are further configured to cause the network entity to:
switch from a second beam of the set of one or more beams to the beam.
13 . The apparatus of claim 8 , wherein, the one or more processors are further configured to cause the network entity to:
obtain beam geometry information for the set of one or more beams, wherein the switch from the first bandwidth part to the second bandwidth part is based at least in part on the beam geometry information.
14 . The apparatus of claim 13 , wherein, to obtain the beam geometry information, the one or more processors are further configured to cause the network entity to:
calculate one or more parameters associated with the beam geometry information based on an altitude of a satellite, a speed of the satellite, a direction of the set of one or more beams, an angular width of the set of one or more beams, or a combination thereof.
15 . A method for wireless communication at a user equipment (UE), comprising:
receiving an indication of a sequence of a plurality of bandwidth parts, each bandwidth part of the sequence of the plurality of bandwidth parts associated with at least one of location information or timing information, the location information corresponding to a location of the UE;
switching from a first bandwidth part to a second bandwidth part of the sequence of the plurality of bandwidth parts based at least in part on at least one of the location information or the timing information; and
communicating using a beam of a set of one or more beams, the beam corresponding to the second bandwidth part of the sequence of the plurality of bandwidth parts.
16 . The method of claim 15 , wherein the set of one or more beams is a sequence of beams.
17 . The method of claim 16 , further comprising:
mapping each beam in the sequence of beams to a corresponding bandwidth part of the sequence of the plurality of bandwidth parts.
18 . The method of claim 15 , wherein the first bandwidth part and the second bandwidth part are in the same beam.
19 . The method of claim 15 , wherein switching from the first bandwidth part to the second bandwidth part comprises:
switching from a second beam of the set of one or more beams to the beam.
20 . The method of claim 15 , further comprising:
obtaining beam geometry information for the set of one or more beams, wherein the switch from the first bandwidth part to the second bandwidth part is based at least in part on the beam geometry information.