Beam management
According to various examples, there is provided a User Equipment, UE, comprising means for: receiving an indication of a type of parameter to be reported by the UE, wherein the type of parameter characterises one or more receive, Rx, of the UE via which one or more Reference Signals, RSs, are received; determining one or more values of the indicated type of parameter for at least one of the one or more RSs received by at least one of the one or more Rx beams of the UE; and sending information indicative of the determined one or more values of the indicated type of parameter for the at least one of the one or more RSs received by the at least one of the one or more Rx beams of the UE.
1 . A User Equipment (UE) comprising:
at least one processor; and
at least one memory including computer program instructions, the at least one memory and the computer program instructions are configured to, with the at least one processor, cause the UE at least to:
receive an indication of a type of parameter to be reported by the UE, wherein the type of parameter characterizes one or more receive (Rx) beams via which the UE receives one or more Reference Signals (RSs), and wherein the type of parameter comprises a beam robustness indicator that is based on at least one of a switching time for an Rx beam, a Reference Signal Received Power (RSRP) of a Reference Signal (RS), a Signal to Interference plus Noise Ratio (SINR) of the RS, or an Angle of Arrival (AoA) of the RS;
receive configuration information for determining values of the indicated type of parameter, the configuration information indicating how to assign values via threshold ranges;
determine values of the indicated type of parameter for at least one RS of the one or more RSs received by at least one of the one or more Rx beams of the UE, wherein a common value of the beam robustness indicator assigned to different RSs indicates operation of respective Rx beams under a common threshold parameter, and wherein the determination includes determining multiple different values for a single RS of the one or more RSs received via a single Rx beam of the one or more Rx beams, each of the multiple different values corresponding to a different reception instance of the single RS via the same Rx beam, wherein one reception instance corresponds to a direct line-of-sight path and another reception instance corresponds to an indirect path resulting from reflection, and wherein each reception instance is associated with a different receive metric; and
send information indicative of the determined values of the indicated type of parameter, wherein the information comprises, for each RS, an indication of a robustness offset value and an associated group identifier selected from a plurality of groups, each group corresponding to a predefined range of values of the indicated type of parameter, such that: (i) different robustness offset values for the same RS received via a single Rx beam correspond to different reception instances with different receive metrics, and (ii) RSs tagged with a same group identifier indicate reception via Rx beams operating under a common threshold parameter, thereby enabling classification of RSs according to robustness characteristics for scheduling and fallback purposes.
2 . The UE of claim 1 , wherein the indicated type of parameter comprises:
an indicator indicative of one or more characteristics of the at least one of the one or more Rx beams of the UE via which the at least one of the one or more RSs was received; and
one or more robustness indicators, wherein the one or more robustness indicators are indicative of a robustness of the at least one of the one or more Rx beams of the UE via which the at least one of the one or more RSs was received.
3 . The UE of claim 2 , wherein the at least one memory and the computer program instructions are configured to, with the at least one processor, cause the UE at least to:
receive, via the at least one of the one or more Rx beams of the UE, the at least one of the one or more RSs.
4 . The UE of claim 3 , the at least one memory and the computer program instructions configured to, with the at least one processor, cause the UE at least to perform:
receiving information for enabling the UE to determine how to determine the one or more values of the indicated type of parameter for the at least one of the one or more RSs received by the at least one of the one or more Rx beams of the UE.
5 . The UE of claim 4 , wherein the at least one memory and the computer program instructions are configured to, with the at least one processor, cause the UE at least to:
assign the at least one of the one or more RSs to one of a plurality of groups that characterizes the at least one of the one or more Rx beams of the UE in accordance with the indicated type of parameter.
6 . The UE of claim 5 , wherein the indicated type of parameter relates to temporal operational characteristics of the one or more Rx beams of the UE via which the one or more RSs were received.
7 . A method for a User Equipment (UE), the method comprising:
receiving an indication of a type of parameter to be reported by the UE, wherein the type of parameter characterizes one or more receive (Rx) beams via which the UE receives one or more Reference Signals (RSs), and wherein the type of parameter comprises a beam robustness indicator that is based on a switching time for an Rx beam, a Reference Signal Received Power (RSRP) of a Reference Signal (RS), a Signal to Interference plus Noise Ratio (SINR) of the RS, and an Angle of Arrival (AoA) of the RS;
receiving configuration information for determining one or more values of the indicated type of parameter, the configuration information indicating how to assign values via threshold ranges;
determining values of the indicated type of parameter for at least one RS of the one or more RSs received by at least one of the one or more Rx beams of the UE, wherein a common value of the beam robustness indicator assigned to different RSs indicates operation of respective Rx beams under a common threshold parameter, and wherein the determination includes determining multiple different values for a single RS of the one or more RSs received via a single Rx beam of the one or more Rx beams, each of the multiple different values corresponding to a different reception instance of the single RS via the same Rx beam, wherein one reception instance corresponds to a direct line-of-sight path and another reception instance corresponds to an indirect path resulting from reflection, and wherein each reception instance is associated with a different receive metric; and
sending information indicative of the determined values of the indicated type of parameter, wherein the information comprises, for each RS, an indication of a robustness offset value and an associated group identifier selected from a plurality of groups, each group corresponding to a predefined range of values of the indicated type of parameter, such that: (i) different robustness offset values for the same RS received via a single Rx beam correspond to different reception instances with different receive metrics, and (ii) RSs tagged with a same group identifier indicate reception via Rx beams operating under a common threshold parameter, thereby enabling classification of RSs according to robustness characteristics for scheduling and fallback purposes.
8 . The method of claim 7 , wherein the indicated type of parameter comprises:
an indicator indicative of one or more characteristics of the at least one of the one or more Rx beams of the UE via which the at least one of the one or more RSs was received; and/or
one or more robustness indicators, wherein the one or more robustness indicators are indicative of a robustness of the at least one of the one or more Rx beams of the UE via which the at least one of the one or more RSs was received.
9 . The method of claim 8 , comprising:
receiving, via the at least one of the one or more Rx beams of the UE, the at least one of the one or more RSs.
10 . The method of claim 9 , comprising:
receiving information for enabling the UE to determine how to determine the one or more values of the indicated type of parameter for the at least one of the one or more RSs received by the at least one of the one or more Rx beams of the UE.
11 . The method of claim 10 , comprising:
assigning the at least one of the one or more RSs to one of a plurality of groups that characterises the at least one of the one or more Rx beams of the UE in accordance with the indicated type of parameter.
12 . The method of claim 11 , wherein the indicated type of parameter relates to temporal operational characteristics of the one or more Rx beams of the UE via which the one or more RSs were received.
13 . A non-transitory computer readable medium encoded with instructions that, when performed by at least one processor, causing a user equipment (UE) to at least perform:
receiving an indication of a type of parameter to be reported by the UE, wherein the type of parameter characterizes one or more receive (Rx) beams via which the UE receives one or more Reference Signals (RSs) and wherein the type of parameter comprises a beam robustness indicator that is based on a switching time for an Rx beam, a Reference Signal Received Power (RSRP) of a Reference Signal (RS), a Signal to Interference plus Noise Ratio (SINR) of the RS, and an Angle of Arrival (AoA) of the RS;
receiving configuration information for determining one or more values of the indicated type of parameter, the configuration information indicating how to assign values via threshold ranges;
determining values of the indicated type of parameter for at least one RS of the one or more RSs received by at least one of the one or more Rx beams of the UE, wherein a common value of the beam robustness indicator assigned to different RSs indicates operation of respective Rx beams under a common threshold parameter, and wherein the determination includes determining multiple different values for a single RS of the one or more RSs received via a single Rx beam of the one or more Rx beams, each of the multiple different values corresponding to a different reception instance of the single RS via the same Rx beam, wherein one reception instance corresponds to a direct line-of-sight path and another reception instance corresponds to an indirect path resulting from reflection, and wherein each reception instance is associated with a different receive metric; and
sending information indicative of the determined values of the indicated type of parameter, wherein the information comprises, for each RS, an indication of a robustness offset value and an associated group identifier selected from a plurality of groups, each group corresponding to a predefined range of values of the indicated type of parameter, such that: (i) different robustness offset values for the same RS received via a single Rx beam correspond to different reception instances with different receive metrics, and (ii) RSs tagged with a same group identifier indicate reception via Rx beams operating under a common threshold parameter, thereby enabling classification of RSs according to robustness characteristics for scheduling and fallback purposes.
14 . The non-transitory computer readable medium of claim 13 , wherein the indicated type of parameter comprises:
an indicator indicative of one or more characteristics of the at least one of the one or more Rx beams of the UE via which the at least one of the one or more RSs was received; and/or
one or more robustness indicators, wherein the one or more robustness indicators are indicative of a robustness of the at least one of the one or more Rx beams of the UE via which the at least one of the one or more RSs was received.
15 . The non-transitory computer readable medium of claim 13 , comprising instruction to cause the UE to perform:
receiving, via the at least one of the one or more Rx beams of the UE, the at least one of the one or more RSs.
16 . The non-transitory computer readable medium of claim 13 , comprising instruction to cause the UE to perform:
receiving information for enabling the UE to determine how to determine the one or more values of the indicated type of parameter for the at least one of the one or more RSs received by the at least one of the one or more Rx beams of the UE.
17 . The non-transitory computer readable medium of claim 13 , wherein the information indicative of the determined one or more values of the indicated type of parameter for the at least one of the one or more RSs comprises an indication of one of a plurality of groups, wherein each group is associated with a range of values of the indicated type of parameter.