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US 7,924,871 B2Granted
Control channel priority access systems and methods
AssigneeNextel Communications Inc.
InventorDouglas Alan Hyslop
Life of this patent
Estimating the term…
Abstract
Methods and systems for priority access to control channels are provided. A mobile stations is assigned a user priority value. The mobile station selects a retry algorithm from a plurality of retry algorithms based on the assigned user priority value. Alternatively, the assigned user priority value can be used as a seed value for a single retry algorithm. Mobile stations with higher priority values will attempt to access the control channel within shorter time periods and more frequently than those with lower priority values.
Claims28
A method for accessing a control channel, the method comprising the acts of:
- transmitting, from a mobile station, an access request to a base station;
- determining that the access request has not been granted;
- receiving an access request retry parameter indicating a first maximum number of access request retries;
- comparing a user priority value of the mobile station with a predetermined user priority value,
- wherein when the user priority value of the mobile station is less than the predetermined user priority value, updating a stored value in the mobile station for a maximum number of access request retries according to the received access request retry parameter and performing access requests based on the updated maximum number of access request retries, and
- wherein when the user priority value associated with the mobile station is greater than or equal to the predetermined user priority value, ignoring the access request retry parameter, determining based on a stored algorithm a second maximum number of access request retries which is greater than the first maximum number of access request retries, and performing access requests based on the second maximum number of access request retries.
3 more elements
A mobile station comprising:
- a transmitter which transmits an access request to a base station and receives an access request retry parameter indicating a first maximum number of access request retries;
- a processor which determines that the access request has not been granted and compares a user priority value of the mobile station with a predetermined user priority value to a user priority value,
- wherein when the user priority value of the mobile station is less than the predetermined user priority value, updating a stored value in the mobile station for a maximum number of access request retries according to the received access request retry parameter and performing access requests based on the updated maximum number of access request retries, and
- wherein when the user priority value associated with the mobile station is greater than or equal to the predetermined user priority value, ignoring the access request retry parameter, determining based on a stored algorithm a second maximum number of access request retries which is greater than the first maximum number of access request retries, and performing access requests based on the second maximum number of access request retries;
- and
- a memory which stores the priority value associated with the mobile station.
3 more elements
A mobile station comprising:
- a transmission unit for transmitting an access request to a base station;
- a determination unit for determining that the access request has not been granted;
- a reception unit for receiving an access request retry parameter indicating a first maximum number of access requests;
- a comparison unit for comparing a user priority value of the mobile station with a predetermined user priority value to a user priority value associated with the mobile station,
- wherein when the user priority value of the mobile station is less than the predetermined user priority value, a maximum number of access request retries stored in the mobile station is updated according to the received access request retry parameter and access request are performed based on the updated maximum number of access request retries, and
- wherein when the user priority value associated with the mobile station is greater than or equal to the predetermined user priority value, the access request retry parameter is ignored, a second maximum number of access request retries is determined based on a stored algorithm which is greater than the first maximum number of access request retries, and access requests are performed based on the second maximum number of access request retries;
- and
- a storage unit for storing the priority value associated with the mobile station.
5 more elements
A method for accessing a control channel, the method comprising the acts of:
- receiving, by a mobile station, an access request retry parameter from a base station, the access request retry parameter indicating a first maximum number of access request retries;
- comparing a user priority value of the mobile station with a predetermined user priority value,
- wherein when the user priority value of the mobile station is less than the predetermined user priority value, updating a stored value in the mobile station for a maximum number of access request retries according to the received access request retry parameter, and
- wherein when the user priority value associated with the mobile station is greater than or equal to the predetermined user priority value, ignoring the access request retry parameter, determining based on a stored algorithm a second maximum number of access request retries which is greater than the first maximum number of access request retries;
- and
- performing a traffic channel access request based on the first maximum number of access request retries or the second maximum number of access request retries, wherein the traffic channel access request comprises the acts of
- transmitting, by the mobile station, up to the first or second maximum number of access requests with a time period between access requests until an access request response is received, wherein the a time period between access requests is based upon the user priority value associated with the mobile station.
4 more elements
Dependencies are inferred from the claim text.