Allocating forward link resources for transmitting data over a shared forward link data channel without allocating reverse link resources for reverse link data transmission
View Patent ↗In one embodiment the method includes allocating, for a mobile, forward link resources for transmitting data over a shared forward link data channel without allocating reverse link resources for reverse link data transmission in association with the allocated forward link resources. At least a portion of the received data is repeatedly sent to the mobile on the shared forward link data channel over a time division multiple access air interface using the allocated forward link resources until an acknowledgement is received from the mobile or a number of transmissions have taken place.
1. A method of wireless data transmission, comprising:
broadcasting available identifiers from a plurality of identifiers reserved for only a shared reverse link data channel;
receiving a data alert message on a reverse link access channel indicating a mobile station has data for transmission, the data alert message including a selected one of the available identifiers;
selecting an identifier from a plurality of identifiers reserved for only the shared reverse link data channel;
sending an assignment message including the selected identifier to the mobile station over a forward link control channel prior to the receiving the data, a timing of when the assignment message is sent establishing when the mobile station will send the data;
allocating, in response to the received data alert message, reverse link resources for receiving data over a shared reverse link data channel without allocating forward link resources for forward link data transmission in association with the allocated reverse link resources;
repeatedly receiving at least a part of the data on the reverse link data channel based on the allocated reverse link resources until the data is successfully decoded; and
sending an acknowledgement of the received data on a forward link channel if the received data is successfully decoded.
2. The method of claim 1 , wherein the receiving the data derives a scrambling code based on the selected identifier, and receives the data on the reverse link data channel using the derived scrambling code.
3. The method of claim 1 , wherein the data alert message includes a channel quality indication field.
4. The method of claim 1 , wherein
the selected one of the available identifiers is a medium access control index, and
a base station responds to the selected medium access control index from the mobile station using one of an access channel acknowledgement message and a reverse reservation assignment message to confirm the selection made by the mobile station.
5. A base station for providing at least one of data and voice connectivity between a network and one or more users, the base station comprising:
a controller configured to,
broadcast available identifiers from a plurality of identifiers reserved for only a shared reverse link data channel,
receive a data alert message on a reverse link access channel indicating a mobile station has data for transmission, the data alert message including a selected one of the available identifiers,
select an identifier from a plurality of identifiers reserved for only the shared reverse link data channel,
send an assignment message including the selected identifier to the mobile station over a forward link control channel prior to the receiving the data, a timing of when the assignment message is sent establishing when the mobile station will send the data,
allocate, in response to the received data alert message, reverse link resources for receiving data over a shared reverse link data channel without allocating forward link resources for forward link data transmission in association with the allocated reverse link resources,
repeatedly receive at least a part of the data on the reverse link data channel based on the allocated reverse link resources until the data is successfully decoded, and
send an acknowledgement of the received data on a forward link channel if the received data is successfully decoded.
6. A mobile station for using wireless resources in a wireless communication network, the mobile station comprising:
a processor configured to,
receive available identifiers from a plurality of identifiers reserved for only a shared reverse link data channel,
select one of the available identifiers,
transmit a data alert message on a reverse link access channel indicating the mobile station has data for transmission, the data alert message including a selected one of the available identifiers, the selected one of the available identifiers being reserved for only the shared reverse link data channel, and in response to the transmitted data alert message, reverse link resources for receiving data over a shared reverse link data channel are allocated without an allocation of forward link resources for forward link data transmission in association with the allocated reverse link resources,
receive an assignment message including the selected identifier over a forward link control channel, a timing of when the assignment message is sent establishing when the mobile station will send the data,
repeatedly transmit at least a part of the data on the reverse link data channel based on allocated reverse link resources until the data is successfully decoded, and
receive an acknowledgement of the received data on a forward link channel if the received data is successfully decoded.