Beam specific idle discontinuous reception configuration
Methods, systems, and devices for wireless communications are described. Idle discontinuous reception (I-DRX) configurations may be managed on a per beam or a per subset of beams basis. The network may indicate, via system information, the I-DRX configuration for a given beam or subset of beams. A user equipment (UE) in an idle mode may receive paging occasions via the given beam in accordance with the indicated I-DRX configuration for that beam. In some examples, system information may indicate a list of beams and corresponding I-DRX configurations for each beam in the list of beams. In some examples, system information may indicate the I-DRX configuration for the beam on which the system information is transmitted. If a UE changes beams, the UE may receive system information via the new beam that indicates an I-DRX configuration for the new beam before applying the I-DRX configuration to the new beam.
1 . A method for wireless communications at a user equipment (UE), comprising:
receiving, from a network entity, a single system information message via a first beam indicating a first idle discontinuous reception configuration specific to the first beam and a second idle discontinuous reception configuration specific to a second beam, the first idle discontinuous reception configuration different than the second idle discontinuous reception configuration, wherein the first beam and the second beam are associated with a cell; and
receiving, from the network entity via the first beam while the UE is operating in an idle mode, a paging occasion in accordance with the first idle discontinuous reception configuration specific to the first beam.
2 . The method of claim 1 , wherein the cell is associated with a plurality of beams, the plurality of beams including the first beam and the second beam, and wherein receiving the single system information message comprises:
receiving an indication of a respective idle discontinuous reception configuration specific to each beam of the plurality of beams.
3 . The method of claim 2 , further comprising:
receiving, from the network entity via the second beam while the UE is operating in the idle mode, a second paging occasion in accordance with the second idle discontinuous reception configuration specific to the second beam.
4 . The method of claim 3 , wherein the paging occasion is offset in time from the second paging occasion by a time period corresponding to a random access channel procedure.
5 . The method of claim 2 , further comprising:
receiving, from the network entity and after the single system information message, a paging error indication message indicating a subset of beams of the plurality of beams; and
receiving, from the network entity via the subset of beams while the UE is operating in the idle mode, one or more paging occasions in accordance with respective idle discontinuous reception configurations specific to the subset of beams.
6 . The method of claim 2 , wherein receiving the single system information message comprises:
receiving the single system information message via the first beam that comprises the indication of the respective idle discontinuous reception configuration specific to each beam of the plurality of beams.
7 . The method of claim 1 , further comprising:
receiving, from the network entity and after the single system information message, a paging error indication message indicating one or more updated parameters for the first idle discontinuous reception configuration specific to the first beam, wherein the paging occasion is received in accordance with the one or more updated parameters.
8 . The method of claim 1 , further comprising:
performing a random access channel procedure with the network entity using the first beam based on the paging occasion.
9 . The method of claim 1 , wherein receiving the single system information message comprises:
receiving the single system information message indicating the first idle discontinuous reception configuration is associated with one of a transmission and reception point associated with the first beam or a set of beams including the first beam.
10 . The method of claim 1 , wherein the first idle discontinuous reception configuration comprises a cycle duration, a paging frame location, and a number of paging occasions per cycle duration.
11 . The method of claim 10 , wherein the second idle discontinuous reception configuration comprises a second cycle duration, a second paging frame location, and a second number of paging occasions per cycle duration, wherein at least one of:
the second cycle duration is different than the cycle duration;
the second paging frame location is different than the paging frame location; or
the second number of paging occasions per cycle duration is different than the number of paging occasions per cycle duration.
12 . A method for wireless communications at a network entity, comprising:
transmitting a single system information message via a first beam indicating a first idle discontinuous reception configuration specific to the first beam and a second idle discontinuous reception configuration specific to a second beam, the first idle discontinuous reception configuration different than the second idle discontinuous reception configuration, wherein the first beam and the second beam are associated with a cell; and
transmitting, to a user equipment (UE) via the first beam while the UE is operating in an idle mode, a paging occasion in accordance with the first idle discontinuous reception configuration specific to the first beam.
13 . The method of claim 12 , wherein the cell is associated with a plurality of beams, the plurality of beams including the first beam and the second beam, and wherein transmitting the single system information message comprises:
transmitting an indication of a respective idle discontinuous reception configuration specific to each beam of the plurality of beams.
14 . The method of claim 13 , further comprising:
transmitting, to the UE via the second beam while the UE is operating in the idle mode, a second paging occasion in accordance with the second idle discontinuous reception configuration specific to the second beam.
15 . The method of claim 14 , wherein the paging occasion is offset in time from the second paging occasion by a time period corresponding to a random access channel procedure.
16 . The method of claim 13 , further comprising:
transmitting, to the UE and after the single system information message, a paging error indication message indicating a subset of beams of the plurality of beams; and
transmitting, to the UE via the subset of beams while the UE is operating in the idle mode, one or more paging occasions in accordance with respective idle discontinuous reception configurations specific to the subset of beams.
17 . The method of claim 13 , wherein transmitting the single system information message comprises:
transmitting the single system information message via the first beam that comprises the indication of the respective idle discontinuous reception configuration specific to each beam of the plurality of beams.
18 . The method of claim 12 , further comprising:
transmitting, to the UE and after the single system information message, a paging error indication message indicating one or more updated parameters for the first idle discontinuous reception configuration specific to the first beam, wherein the paging occasion is transmitted in accordance with the one or more updated parameters.
19 . The method of claim 12 , further comprising:
performing a random access channel procedure with the UE using the first beam based on the paging occasion.
20 . The method of claim 12 , wherein transmitting the single system information message comprises:
transmitting the single system information message indicating the first idle discontinuous reception configuration is associated with one of a transmission and reception point associated with the first beam or a set of beams including the first beam.
21 . The method of claim 12 , wherein the first idle discontinuous reception configuration comprises a cycle duration, a paging frame location, and a number of paging occasions per cycle duration.
22 . A user equipment (UE) for wireless communications, comprising:
one or more memories storing processor executable code; and
one or more processors coupled with the one or more memories and operable to execute the code to cause the UE to:
receive, from a network entity, a single system information message via a first beam indicating a first idle discontinuous reception configuration specific to the first beam and a second idle discontinuous reception configuration specific to a second beam, the first idle discontinuous reception configuration different than the second idle discontinuous reception configuration, wherein the first beam and the second beam are associated with a cell; and
receive, from the network entity via the first beam while the UE is operating in an idle mode, a paging occasion in accordance with the first idle discontinuous reception configuration specific to the first beam.
23 . The UE of claim 22 , wherein the cell is associated with a plurality of beams, the plurality of beams including the first beam and the second beam, and wherein, to receive the single system information message, the one or more processors are operable to cause the UE to:
receive an indication of a respective idle discontinuous reception configuration specific to each beam of the plurality of beams.
24 . The UE of claim 23 , wherein the one or more processors are further operable to execute the code to cause the UE to:
receive, from the network entity via the second beam while the UE is operating in the idle mode, a second paging occasion in accordance with the second idle discontinuous reception configuration specific to the second beam.
25 . The UE of claim 24 , wherein the paging occasion is offset in time from the second paging occasion by a time period corresponding to a random access channel procedure.
26 . The UE of claim 23 , wherein the one or more processors are further operable to execute the code to cause the UE to:
receive, from the network entity and after the single system information message, a paging error indication message indicating a subset of beams of the plurality of beams; and
receive, from the network entity via the subset of beams while the UE is operating in the idle mode, one or more paging occasions in accordance with respective idle discontinuous reception configurations specific to the subset of beams.
27 . The UE of claim 23 , wherein, to receive the single system information message, the one or more processors are operable to execute the code to cause the UE to:
receive the single system information message via the first beam that comprises the indication of the respective idle discontinuous reception configuration specific to each beam of the plurality of beams.
28 . A network entity for wireless communications, comprising:
one or more memories storing processor executable code; and
one or more processors coupled with the one or more memories and operable to execute the code to cause the network entity to:
transmit a single system information message via a first beam indicating a first idle discontinuous reception configuration specific to the first beam and a second idle discontinuous reception configuration specific to a second beam, the first idle discontinuous reception configuration different than the second idle discontinuous reception configuration, wherein the first beam and the second beam are associated with a cell; and
transmit, to a user equipment (UE) via the first beam while the UE is operating in an idle mode, a paging occasion in accordance with the first idle discontinuous reception configuration specific to the first beam.
29 . The network entity of claim 28 , wherein the cell is associated with a plurality of beams, the plurality of beams including the first beam and the second beam, and wherein, to transmit the single system information message, the one or more processors are operable to execute the code to cause the network entity to:
transmit an indication of a respective idle discontinuous reception configuration specific to each beam of the plurality of beams.
30 . The network entity of claim 29 , wherein, to receive the single system information message, the one or more processors are operable to execute the code to cause the network entity to:
transmit the single system information message via the first beam that comprises the indication of the respective idle discontinuous reception configuration specific to each beam of the plurality of beams.