Overhead message and channel hashing method using the same
AssigneeLG Electronics Inc.
InventorsJong Hoe An, Chan Ho Kyung, Young Jo Lee
Life of this patent
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Abstract
An overhead message and a method of performing channel hashing using the same are provided. The overhead message includes first and second fields of an extended CDMA channel list message (ECCLM). The first field contains information indicating whether the ECCLM includes at least one frequency assignment of list of frequency assignments that allows packet data support for a forward packet data channel or a 1xEV-DV system and the second field indicates whether each frequency assignment allows such support, thereby enabling channel hashing to be performed by a packet-data-supportable mobile station of a communication system.
Claims38
A method of performing channel hashing in a communication system, the method comprising a step of:
- transmitting an overhead message including a list of frequency assignments to at least one receiving side through a common channel, wherein the overhead message includes a first field, the first field containing information indicating whether the frequency assignment list includes at least one frequency assignment allowing packet data support.
A method of performing channel hashing in a communication system, the method comprising steps of:
- receiving through a common channel an overhead message including a CDMA channel list containing a plurality of frequency assignments;
- reading first and second fields of the received overhead message, the first field containing information indicating whether at least one frequency assignment allowing packet data support is included in the plurality of frequency assignments and the second field containing information indicating whether each frequency assignment of the plurality of frequency assignments allows packet data support;
- formulating a first subset of channels based on the information of the first and second fields of the received overhead message;
- and
- choosing as a service channel a frequency assignment of the first subset of channels.
A method of performing channel hashing in a communication system, the method comprising steps of:
- receiving an overhead message, sent through a forward common channel from a base station to a mobile station, the overhead message including at least one field and a CDMA channel list;
- determining in the mobile station whether the base station and mobile station both provide packet data support, based on the at least one field of the received overhead message;
- formulating a first subset of channels according to a result of said determining step;
- and
- randomly selecting one frequency assignment from the first subset of channels.
An overhead message comprising:
- a first field containing information indicating whether a list of frequency assignments includes at least one frequency assignment allowing packet data support;
- and
- a second field containing information indicating whether each frequency assignment of the frequency assignment list allows packet data support.
Dependencies are inferred from the claim text.