Resource Control
Measures including, methods, apparatus, computer software and computer program products, for use in radio resource control in a cellular communications network. At a user equipment, a first random access channel (RACH) message is generated. The user equipment causes transmittal, on a RACH, of the first RACH message. The first RACH message comprises an indication that at least a second RACH message associated with the first RACH message is to be transmitted subsequently from the user equipment on the RACH.
1 . A method for use in radio resource control in a cellular communications network, the method comprising, at a user equipment:
generating a first random access channel (RACH) message; and
causing transmittal, on a RACH, of the first RACH message,
wherein the first RACH message comprises an indication that at least a second RACH message associated with the first RACH message is to be transmitted subsequently from the user equipment on the RACH.
2 . A method according to claim 1 , wherein the first RACH message comprises an identifier identifying at least one of:
at least the first RACH message and the second associated RACH message as being a sequence of RACH messages; and
the user equipment.
3 - 32 . (canceled)
33 . An apparatus for use in radio resource control in a cellular communications network, the apparatus comprising a processing system, the processsing system comprising at least one processor and at least one memory storing a computer program, in which the processing system is configured to, at a user equipment:
generate a first random access channel (RACH) message; and
cause transmittal, on a RACH, of the first RACH message,
wherein the first RACH message comprises an indication that at least a second RACH message associated with the first RACH message is to be transmitted subsequently from the user equipment on the RACH.
34 . The apparatus according to claim 33 , wherein the first RACH message comprises an identifier identifying at least one of:
at least the first RACH message and the second associated RACH message as being a sequence of RACH messages; and
the user equipment.
35 . (canceled)
36 . The apparatus according to claim 34 , wherein the identifier identifies how many RACH messages are in the sequence of RACH messages.
37 . The apparatus according to claim 33 , wherein the first RACH message comprises data associated with one or more communication capabilities of the user equipment.
38 . The apparatus according to claim 33 , the processing system being configured to, at the user equipment:
generate the second associated RACH message; and
cause transmittal of the generated second associated message on the RACH.
39 . The apparatus according to claim 34 , wherein the second associated RACH message comprises at least one of:
the identifier; and
data associated with one or more measurements performed by the user equipment.
40 - 42 . (canceled)
43 . The apparatus according to claim 33 , wherein the first RACH message comprises a radio resource control (RRC) connection request message.
44 . The apparatus according to claim 38 , the processing system being configured to, at the user equipment, in response to transmittal of the second associated RACH message, receive either a RRC connection reject message or a RRC connection setup message.
45 . (canceled)
46 . The apparatus according to claim 44 , wherein one or more of the RRC connection reject message and the RRC connection setup message comprises data associated with a redirection or handover to a different cell, carrier frequency or radio access technology.
47 . The apparatus according to claim 38 , the processing system being configured to, at the user equipment, in response to a predetermined period of time passing after transmittal of the first RACH message without receipt of a RRC connection setup message, cause re-transmission of the second associated RACH message.
48 . The apparatus according to claim 33 , the processing system being configured to, at the user equipment, in response to transmittal of the first RACH message, receive a RRC connection setup message.
49 . The apparatus according to claim 48 , the processing system being configured to, at the user equipment, in response to receipt of the RRC connection setup message, cancel transmittal of the second associated RACH message.
50 . The apparatus according to claim 33 , wherein the first RACH message comprises a cell update message.
51 . The apparatus according to claim 33 , wherein the first RACH message comprises an establishment cause indicator indicating the cause of generation of the first RACH message and/or the second associated RACH message.
52 . The apparatus according to claim 33 , wherein the first RACH message comprises data associated with one or more security parameters for initializing secure data transfer.
53 . The apparatus according to claim 38 , wherein the second associated RACH message comprises data encrypted according to the one or more security parameters.
54 . (canceled)
55 . The apparatus according to claim 33 , wherein the first RACH message comprises an indication that unsecure data is to follow in at least the second associated RACH message.
56 - 131 . (canceled)
132 . A non-transitory computer-readable storage medium having computer readable instructions stored thereon, the computer readable instructions being executable by a computerized device to cause the computerized device to perform:
generating a first random access channel (RACH) message; and
causing transmittal, on a RACH, of the first RACH message,
wherein the first RACH message comprises an indication that at least a second RACH message associated with the first RACH message is to be transmitted subsequently from the user equipment on the RACH.