Patent ID: 6804206
Filing Date: 2004-10-12
Classification: H04B,H04W

Abstract:
A method of operating a radio communication system having a first random access channel, comprising:determining that a mobile station needs to communicate with a base station; determining an amount of payload data that is required to be communicated to the base station in an initial access request, the access request comprising one or more access packets and configured to initiate access by the mobile station to the base station; determining a number of access packets required to communicate the amount of payload data in the access request based on the amount of payload data and a predetermined maximum length of the access packets; generating the number of access packets; selecting at least one spreading code and encoding the access packets with the at least one spreading code; transmitting the encoded access packets on the first random access channel; and determining whether an acknowledgement has been received from the base station within a predetermined time period, the acknowledgement indicating that the access packets have been successfully received by the base station; wherein if the number of access packets in the access request is greater than one, including indicia in at least one of the access packets to indicate to the base station that the access request comprises a plurality of access packets; and wherein the access packets are transmitted in a predetermined timing relationship with respect to each other, at least one of the access packets containing integrity check data, and each access packet comprises a first data section, a mid-amble section, and second data section.