Asymmetric internet access over fixed wireless access
AssigneeNortel Networks Limited
InventorsJIE LIN, JOHN DRISCOLL
Life of this patent
Estimating the term…
Abstract
A radio base station in a Fixed Wireless Access System broadcasts downlink data packets, each packet being transmitted on a single logical channel. A plurality of network subscribers in a sector may be members of a user group, each user group configured to receive and transmit packets transferred on a specific single logical channel only. Packets include a destination address which specifies a member of the user group. The packets include a token which specifies which user group member may transmit uplink data to the base station on the next frame. Logical channels are yielded for use by circuit switched traffic when required.
Claims30
Communications apparatus for transferring packet switched data said apparatus comprising:
- a radio base station capable of transmitting downlink data packets each said data packet being transferred in a specified single timeslot replicating over a plurality of time frames;
- and
- at least one network subscriber equipment capable of receiving said downlink data packets;
- wherein said subscriber equipments are joined as members of at least one user group, each said user group configured to receive said downlink packets in said specified single repeating timeslot only.
In a communications network, a method of communicating packet switched data comprising the steps of:
- communicating a downlink data packet from a radio base station to at least one network subscriber equipment,
- wherein said network subscriber equipment is registered as a member of a user group, said user group configured to receive said downlink packets in a specific single timeslot only.
A method of communicating packet switched data over a wireless link, said method comprising the steps:
- registering at least one subscriber lines for receipt of said packet switched data on a downlink channel of said wireless link;
- and
- communicating said packet switched data on said downlink channel;
- wherein said downlink packet switched data carries an address of a group of registered said subscriber lines, for which said data is intended.
A method of communicating packet switched data over a wireless link, said method comprising the steps of:
- registering at least one subscriber line for receipt of said packet switched data on a downlink channel of said wireless link;
- allocating a single uplink channel of said wireless link for receipt of packet switched data from a group of said subscriber lines;
- transmitting a token data on said downlink, said token data indicating which of said registered subscriber lines has authorization to transmit on said uplink channel.
A method of communicating packet switched data over a wireless link, said method comprising the steps of:
- receiving packet switched data on a downlink channel of said wireless link, said downlink channel allocated for receipt by a group of subscriber lines;
- receiving a token data indicating authorization to transmit packet switched data on an allocated uplink channel;
- and
- transmitting said packet switched data on said allocated uplink channel.
A method of registering a plurality of users of a communications network for receipt of packet switched data services over a wireless link, said method comprising the steps of:
- receiving a registration request from a said network user;
- in response to said registration request, allocating a user identification data to said user;
- allocating an identification data to said user;
- and
- allocating at least one logical communications channel to said user.
In a communications network operating a wireless link for communicating packet switched data to a network user of at least one channel of a plurality of channels, a method of re-synchronizing a user with a said channel to which said user has been previously assigned, said method comprising the steps of:
- determining if said user is already assigned to a said logical channel;
- if said user is already assigned to said logical channel, retrieving data identifying
- a user group to which said user belongs;
- a logical channel to which said group is assigned;
- a physical channel to which said group is assigned;
- and
- transmitting said data identifying said user group, said logical channel and said physical channel over said wireless link.
Dependencies are inferred from the claim text.