초록 ▼

A new access scheme for a digital radio network for providing packet data access to mobile stations operating within said network. A random access channel (ACH) is provided for control signaling and short data messages between the network and the mobile stations. One or more polling data channels (P

A new access scheme for a digital radio network for providing packet data access to mobile stations operating within said network. A random access channel (ACH) is provided for control signaling and short data messages between the network and the mobile stations. One or more polling data channels (PDCHs) are provided for larger quantities of data to be sent between the mobile stations and the network. A mobile station seeking access to send data packets contacts the network over the ACH channel, registers for packet access and is assigned a unique flag pattern. The network then sequentially provides to various registered mobiles access to a PDCH channel by sending its flag pattern in a message over the downlink PDCH. When each mobile recognizes its own unique flag pattern it knows that it is then allowed to send a discrete number of packet bursts to the network over the uplink PDCH before access to the PDCH is given to another registered mobile station. This procedure provides shared access to the PDCH channel to each of the mobiles in the network and prevents collisions between the packets of different mobile stations.

대표청구항 ▼

[ What is claimed is:] [1.] A method for providing a packet data access scheme in a digital cellular communications network which comprises:providing a broadcast control channel (BCCH) over which the network broadcasts control information to mobile stations in the network;providing a random access c

[ What is claimed is:] [1.] A method for providing a packet data access scheme in a digital cellular communications network which comprises:providing a broadcast control channel (BCCH) over which the network broadcasts control information to mobile stations in the network;providing a random access channel (ACH) over which the network communicates only control signaling and short data messages between mobile stations and the network;providing at least one polling data channel (PDCH) over which the network communicates larger quantities of packet data between a mobile station and the network, said at least one PDCH providing dedicated access between said mobile station and the network;broadcasting messages over said broadcast control channel (BCCH) which indicate the presence and operative parameters of said random access and polling channels to said mobile stations, at least one of said messages including a channel restriction information parameter limiting access of said at least one PDCH to a subset of said mobile stations;receiving a data registration signal from a mobile station of said subset of said mobile stations on the ACH channel to indicate that said mobile station has data to send to the network over said at least one PDCH, said mobile station recognizing from said channel restriction information parameter that said mobile station is allowed access to said at least one PDCH; andallocating within the network said at least one PDCH to said mobile station to allow said mobile station to send its data to the network.