Prioritizing random access procedures for mobile terminated access attempts in paging message
A UE receives, in a paging message, information corresponding to random-access priority. The UE applies, in response to a random access being triggered, the random-access priority according to the information received in the paging message. A network node in a wireless system generates information corresponding to random-access priority for a UE to use for a random-access procedure. The network node sends, in a paging message, information corresponding to the random-access priority toward the user equipment.
1 . A method, comprising:
determining, by a network node in a wireless network, to trigger prioritized random-access control in one or more cells of the network node in response to resource sharing between generic resources and slice-specific resources being unbalanced in the one or more cells;
in response to the determining, generating, with the network node, information corresponding to a random-access priority for a user equipment to use for a random-access procedure; and
sending, in a paging message with the network node, the information corresponding to the random-access priority to the user equipment within the one or more cells.
2 . The method of claim 1 , wherein the sending, in the paging message, the information corresponding to the random-access priority is performed in response to reception, with the network node, of an incoming mobile-terminated call for the user equipment.
3 . The method of claim 1 , wherein the information corresponding to the random-access priority comprises one of an indication of the random-access priority or an indication of a random-access priority class.
4 . The method of claim 3 , wherein the indication of the random-access priority comprises an indication for the user equipment to apply a set of parameters for the random-access procedure to be used with the user equipment.
5 . The method of claim 4 , wherein the parameters comprise one or more of the following: a backoff scaling factor, a power ramping step, a message power offset for group B preambles, or a maximum number of transmission attempts.
6 . The method of claim 4 , further comprising the network node sending the set of parameters over system information to the user equipment for application with the user equipment based on reception of the information corresponding to the random-access priority.
7 . The method of claim 4 , further comprising the network node indicating to the user equipment one or more of random-access channel occasions, random-access channel preambles, or random-access channel configurations corresponding to the random-access priority.
8 . The method of claim 3 , wherein the information corresponding to the random-access priority comprises the indication of the random-access priority class, and wherein:
the random-access priority class is one of multiple random-access priority classes that are assigned to one or more access categories to enable priorities for the one or more access categories; and
the network node indicates in the random-access priority class indication to the user equipment one of the multiple random-access priority classes to use as a selected random-access priority class.
9 . The method of claim 8 , wherein the indication of the random-access priority class comprises an indication for the user equipment to apply a set of parameters for the random-access procedure associated with the selected random-access priority class.
10 . The method of claim 9 , wherein the set of parameters comprises one or more of the following: a backoff scaling factor, a power ramping step, a message power offset for group B preambles, or a maximum number of transmission attempts.
11 . The method of claim 9 , further comprising the network node sending the set of parameters over system information to the user equipment for application with the user equipment based on reception of the information corresponding to the random-access priority.
12 . The method of claim 8 , further comprising the network node indicating to the user equipment one or more of random-access channel occasions, random-access channel preambles, or random-access channel configurations corresponding to the selected random-access priority class.
13 . The method of claim 1 , wherein the information corresponding to random-access priority is in one or more paging records of the paging message.
14 . A non-transitory program storage device readable with an apparatus, tangibly embodying a program of instructions executable with the apparatus for performing the method of claim 1 .
15 . An apparatus, comprising:
at least one processor; and
at least one non-transitory memory storing instructions that, when executed with the at least one processor, cause the apparatus to perform:
determining, by a network node in a wireless network, to trigger prioritized random-access control in one or more cells of the network node in response to resource sharing between generic resources and slice-specific resources being unbalanced in the one or more cells;
in response to the determining, generating, with the network node, information corresponding to a random-access priority for a user equipment to use for a random-access procedure; and
sending, in a paging message with the network node, the information corresponding to the random-access priority to the user equipment within the one or more cells.
16 . The apparatus of claim 15 , wherein the instructions, when executed with the at least one processor, cause the apparatus to perform the sending, in the paging message, the information corresponding to the random-access priority in response to reception, with the network node, of an incoming mobile-terminated call for the user equipment.
17 . The apparatus of claim 15 , wherein the information corresponding to the random-access priority comprises one of an indication of the random-access priority or an indication of a random-access priority class.
18 . The apparatus of claim 17 , wherein the indication of the random-access priority comprises an indication for the user equipment to apply a set of parameters for the random-access procedure to be used with the user equipment.
19 . The apparatus of claim 18 , wherein the parameters comprise one or more of the following: a backoff scaling factor, a power ramping step, a message power offset for group B preambles, or a maximum number of transmission attempts.
20 . The apparatus of claim 18 , wherein the instructions, when executed with the at least one processor, cause the apparatus to perform sending, with the network node, the set of parameters over system information to the user equipment for application with the user equipment based on reception of the information corresponding to the random-access priority.
21 . The apparatus of claim 18 , wherein the instructions, when executed with the at least one processor, cause the apparatus to perform indicating, with the network node to the user equipment, one or more of random-access channel occasions, random-access channel preambles, or random-access channel configurations corresponding to the random-access priority.
22 . The apparatus of claim 17 , wherein the information corresponding to the random-access priority comprises the indication of the random-access priority class, and wherein:
the random-access priority class is one of multiple random-access priority classes that are assigned to one or more access categories to enable priorities for the one or more access categories; and
the network node indicates in the random-access priority class indication to the user equipment one of the multiple random-access priority classes to use as a selected random-access priority class.
23 . The apparatus of claim 22 , wherein the indication of the random-access priority class comprises an indication for the user equipment to apply a set of parameters for the random-access procedure associated with the selected random-access priority class.
24 . The apparatus of claim 23 , wherein the set of parameters comprises one or more of the following: a backoff scaling factor, a power ramping step, a message power offset for group B preambles, or a maximum number of transmission attempts.
25 . The apparatus of claim 23 , wherein the instructions, when executed with the at least one processor, cause the apparatus to perform sending, with the network node, the set of parameters over system information to the user equipment for application with the user equipment based on reception of the information corresponding to the random-access priority.
26 . The apparatus of claim 22 , wherein the instructions, when executed with the at least one processor, cause the apparatus to perform indicating, with the network node to the user equipment, one or more of random-access channel occasions, random-access channel preambles, or random-access channel configurations corresponding to the selected random-access priority class.
27 . The apparatus of claim 15 , wherein the information corresponding to random-access priority is in one or more paging records of the paging message.