COMMUNICATIONS SYSTEM, INFRASTRUCTURE EQUIPMENT, C

专利名称：COMMUNICATIONS SYSTEM,

INFRASTRUCTURE EQUIPMENT,

COMMUNICATIONS DEVICES AND METHOD

发明人：MARTIN, Brian Alexander,WEBB, Matthew

William,WAKABAYASHI, Hideji

申请号：EP17174452.7申请日：20141003公开号：EP3244686B1公开日：20191204

摘要：A method of transmitting data from a communications device to a mobilecommunications network or receiving data from the mobile communications network atthe mobile communications device includes providing, by the mobile communicationsnetwork, a wireless access interface, for transmitting and receiving data to and fromcommunications devices. The wireless access interface provides communications

resources within a system bandwidth and in time divided units providing communicationsresources within the system bandwidth for allocating to communications devices of a firsttype and a second type. The first type of the communications devices having a differentcapability to the second type of communications devices. The method comprisesgenerating, at the communications device, a random access message, by selecting asequence from a predetermined set of sequences, which have been allocated to thecommunications devices of the second type and transmitting the random access messagefrom the communications device to the wireless communications network. The methodfurther comprises in response to the random access message, receiving a random access

response at the communications device transmitted according to the capability of thecommunications device of the second type, the random access message being recognisedas being from a communications device of the second type from the selected one of thepredetermined sequences allocated to the communications devices of the second type.According to this method a mobile communications network can be arranged todifferentiate between communications devices of different types by allocating differentsequences for use in forming the random access messages between the different typesof communications devices and therefore respond to the random access messagedifferently according to the capability of the communications devices of the differenttypes.

代理机构：D Young & Co LLP

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