Back to results
US 8,711,766 B2Granted
SRB enhancement on HS-DSCH during cell change
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsMuhammad Ali Kazmi, Henrik Enbuske
Life of this patent
Estimating the term…
Abstract
The present invention relates to a radio network controller and a radio base station for prioritization of signalling radio bearers (SRB) with regard to their content to achieve an efficient resource usage. The radio network controller can retrieve knowledge about the resource status in a Node B serving a certain user equipment and request this Node B to prioritize signalling radio bearers (SRB) carrying signalling information with regard to radio resource control that is of particular importance and intended to be efficiently forwarded to said user equipment. The Node B then prioritizes such signalling radio bearers and schedules the prioritized signalling radio bearers with respect to their priorities using sufficient radio resources.
Claims26
A method in a radio network controller of a telecommunication system, said radio network controller providing a connection to a radio base station which provides communication services to a user equipment, comprising the steps of:
- determining, at the radio network controller, a priority indicator with respect to a content of a signalling radio bearer to be sent on a High-Speed Downlink Shared Channel (HS-DSCH) from the radio base station to the user equipment;
- associating, at the radio network controller, said priority indicator to the signalling radio bearer;
- transmitting, from the radio network controller, to the radio base station the priority indicator associated with said signalling radio bearer;
- and
- detecting, by the radio network controller, a lack of downlink radio resources and then increasing a reliability of transmitting the signalling radio bearer to the user equipment by increasing an availability of radio resources which is done by performing at least one of following steps:
- reconfiguring a channel of one or several radio links;
- and
- restricting a transport format of one or several radio links;
- and
- wherein the detecting step further comprises determining, prior to determining the priority indicator, a number of losses of signalling radio bearers and if said number exceeds a threshold value then increasing the availability of radio resources by performing at least one of the reconfiguring step and the restricting step and then repeating said step of determining a number of losses of signalling radio bearers after having increased the availability of radio resources.
7 more elements
A radio network controller in a telecommunication system providing a connection to a radio base station which provides communication services to a user equipment, comprising:
- means, within the radio network controller, for determining and associating a priority indicator with respect to a content of a signalling radio bearer to be sent on a High-Speed Downlink Shared Channel (HS-DSCH) from the radio base station to the user equipment;
- means, within the radio network controller, for forwarding the signalling radio bearer with the associated priority indicator to the radio base station;
- and
- means, within the radio network controller, for detecting a lack of downlink radio resources and then increasing a reliability of transmitting the signalling radio bearer to the user equipment by increasing an availability of radio resources which is done by utilizing at least one of following:
- means for reconfiguring a channel of one or several radio links;
- and
- means for restricting a transport format of one or several radio links;
- and
- wherein the detecting means further comprises means for determining, prior to determining the priority indicator, a number of losses of signalling radio bearers and if said number exceeds a threshold value then increasing the availability of radio resources by utilizing at least one of the reconfiguring means and the restricting means and then repeating said determining a number of losses of signalling radio bearers after having increased the availability of radio resources.
6 more elements
A telecommunication system comprising:
- a radio network controller that retrieves knowledge about a resource status in a radio base station serving a certain user equipment and requests the radio base station to make a content-based prioritization of a signalling radio bearer carrying radio resource control information by;
- determining a priority indicator with respect to the radio resource control information of the signalling radio bearer to be sent on a High-Speed Downlink Shared Channel (HS-DSCH) from the radio base station to the user equipment;
- associating said priority indicator to the signalling radio bearer;
- transmitting to the radio base station the priority indicator associated with said signalling radio bearer;
- and
- the radio base station prioritizes the signalling radio bearer and schedules the signalling radio bearer based on the priority indicator using sufficient downlink radio resources to ensure correct reception of the signalling radio bearer on the HS-DSCH to the user equipment;
- and
- the radio network controller is configured to detect a lack of downlink radio resources and then increase a reliability of transmitting the signalling radio bearer to the user equipment by increasing an availability of radio resources which is done by performing at least one of following:
- reconfiguring a channel of one or several radio links;
- and
- restricting a transport format of one or several radio links;
- and
- wherein the radio network controller is configured to determine, prior to determining the priority indicator, a number of losses of signalling radio bearers and if said number exceeds a threshold value then increasing the availability of radio resources by performing at least one of the reconfiguring operation and the restricting operation and then repeating said operation of determining a number of losses of signalling radio bearers after having increased the availability of radio resources.
10 more elements
A method for improving prioritization of signalling radio bearers comprising steps of:
- retrieving, at a radio network controller, knowledge about a resource status in a radio base station serving a certain user equipment;
- requesting, by the radio network controller, the radio base station to make a content-based prioritization of a signalling radio bearer carrying radio resource control information by:
- determining a priority indicator with respect to the radio resource control information of the signalling radio bearer to be sent on a High-Speed Downlink Shared Channel (HS-DSCH) from the radio base station to the user equipment;
- associating said priority indicator to the signalling radio bearer;
- transmitting to the radio base station the priority indicator associated with said signalling radio bearer;
- and
- prioritizing, at the radio base station, the signalling radio bearer;
- scheduling, at the radio base station, the using sufficient downlink radio resources to ensure correct reception of the signalling radio bearer on the HS-DSCH to the user equipment;
- and
- detecting, by the radio network controller, a lack of downlink radio resources and then increasing a reliability of transmitting the signalling radio bearer to the user equipment by increasing an availability of radio resources which is done by performing at least one of following steps:
- reconfiguring a channel of one or several radio links;
- and
- restricting a transport format of one or several radio links;
- and
- wherein the radio network controller is configured to determine, prior to determining the priority indicator, a number of losses of signalling radio bearers and if said number exceeds a threshold value then increasing the availability of radio resources by performing at least one of the reconfiguring step and the restricting step and then repeating said step of determining a number of losses of signalling radio bearers after having increased the availability of radio resources.
12 more elements
A method for improving prioritization of signalling radio bearers in a telecommunication system, the telecommunication system comprising a radio network controller which provides a connection to a radio base station which provides communication services to a user equipment, the method comprising the steps of:
- determining, at the radio network controller, a priority indicator with respect to a content of a signalling radio bearer;
- associating, at the radio network controller, said priority indicator to the signalling radio bearer;
- and,
- transmitting from the radio network controller to the radio base station the priority indicator associated with said signalling radio bearer;
- receiving, at the radio base station, a request from the radio network controller to transmit the signalling radio bearer to the user equipment, the signalling radio bearer being associated with the priority indicator that has been determined with respect to a content of said signalling radio bearer;
- estimating, at the radio base station, the available radio resources for downlink transmissions on a high-speed downlink shared channel to the user equipment;
- scheduling, at the radio base station, of downlink radio resources for the signalling radio bearer;
- assigning, at the radio base station, sufficient downlink radio resources to ensure a correct delivery of the signalling radio bearer over the high-speed downlink shared channel;
- and
- detecting, at the radio network controller, a lack of downlink radio resources and then increasing a reliability of transmitting the signalling radio bearer to the user equipment by increasing an availability of radio resources which is done by performing at least one of following steps:
- reconfiguring a channel of one or several radio links;
- and
- restricting a transport format of one or several radio links;
- and
- wherein the detecting step further comprises determining, prior to determining the priority indicator, a number of losses of signalling radio bearers and if said number exceeds a threshold value then increasing the availability of radio resources by performing at least one of the reconfiguring step and the restricting step and then repeating said step of determining a number of losses of signalling radio bearers after having increased the availability of radio resources.
12 more elements
A telecommunication system comprising:
- a radio network controller providing a connection to a radio base station, the radio network controller comprising:
- means, within the radio network controller, for determining and associating a priority indicator with respect to a content of a signalling radio bearer of said radio base station;
- and
- means, within the radio network controller, for forwarding the signalling radio bearer with the associated priority indicator to the radio base station;
- and
- the radio base station providing communication services to a radio network controller and providing communication services to a user equipment, the radio base station comprising:
- means, at the radio base station, for receiving a request from the radio network controller to transmit the signalling radio bearer to the user equipment, and associating said signalling radio bearer with a priority indicator that has been determined with respect to a content of the signalling radio bearer;
- means, at the radio base station, for estimating the available radio resources for downlink transmissions on a high-speed downlink shared channel to the user equipment;
- means, at the radio base station, for creating the signalling radio bearer being associated with said priority indicator;
- and
- a scheduler, at the radio base station, for scheduling downlink radio resources for transmission of the signalling radio bearer;
- and
- the scheduler for assigning sufficient downlink radio resources that ensure correct delivery of said signalling radio bearer;
- and
- the radio network controller further comprising means for detecting a lack of downlink radio resources and then increasing a reliability of transmitting the signalling radio bearer to the user equipment by increasing an availability of radio resources which is done by utilizing at least one of following:
- means for reconfiguring a channel of one or several radio links;
- and
- means for restricting a transport format of one or several radio links;
- and
- wherein the detecting means further comprises means for determining, prior to determining the priority indicator, a number of losses of signalling radio bearers and if said number exceeds a threshold value then increasing the availability of radio resources by utilizing at least one of the reconfiguring means and the restricting means and then repeating said determining a number of losses of signalling radio bearers after having increased the availability of radio resources.
17 more elements
A radio network controller in a telecommunication system providing a connection to a radio base station which provides communication services to a user equipment, comprising:
- a processor;
- and
- a memory that stores processor-executable instructions where the processor interfaces with the memory and executes the processor-executable instructions to perform operations as follows:
- determine a priority indicator with respect to a content of a signalling radio bearer to be sent on a High-Speed Downlink Shared Channel (HS-DSCH) from the radio base station to the user equipment;
- associate said priority indicator to the signalling radio bearer;
- transmit to the radio base station the priority indicator associated with said signalling radio bearer;
- and
- detect a lack of downlink radio resources and then increase a reliability of transmitting the signalling radio bearer to the user equipment by increasing an availability of radio resources which is done by performing at least one of following operations:
- reconfigure a channel of one or several radio links;
- and
- restrict a transport format of one or several radio links;
- and
- wherein the detect operation further comprises determining, prior to determining the priority indicator, a number of losses of signalling radio bearers and if said number exceeds a threshold value then increasing the availability of radio resources by performing at least one of the reconfiguring operation and the restricting operation and then repeating said operation of determining a number of losses of signalling radio bearers after having increased the availability of radio resources;
- and
- wherein the processor and the memory are components of the radio network controller.
12 more elements
Dependencies are inferred from the claim text.