Scheduling and Admission of Radio Bearers in a Communications System Applying Carrier Aggregation

Patent metadata

Field	Value
Publication number	US-2016143047-A1
Application number	US-201314902138-A
Country	US
Kind code	A1
Filing date	Jul 1, 2013
Priority date	Jul 1, 2013
Publication date	May 19, 2016
Grant date	—

Abstract

A method and a network node ( 110; 400 ) for scheduling of resources to radio bearers associated with wireless devices ( 120, 121, 122 ) served by a base station ( 110 ) in a cell ( 115 ). The network node ( 110, 400 ) and the base station ( 110 ) operating in a wireless communications system ( 100 ) applying carrier aggregation. A first group of one or more of the wireless devices ( 120, 121 ) is served in the cell ( 115 ) as primary serving cell and a second group of other one or more of the wireless devices ( 122 ) is served in the cell ( 115 ) as a secondary serving cell. The network node ( 110, 400 ) assigns higher priority to respective radio bearer associated with the first group than to respective radio bearer associated with the second group based on that the second group is served in the cell ( 115 ) as a secondary serving cell. The network node ( 110, 400 ) then schedules ( 302 ) the resources to the radio bearers based on the assigned priorities. Simple implementation and efficient utilization of benefits from carrier aggregation are enabled.

First claim

1 - 22 . (canceled)

23 . A method in a network node for scheduling of resources to radio bearers associated with wireless devices being served by a base station in a cell, the network node and the base station operating in a wireless communications system applying carrier aggregation, wherein a first group of one or more of the wireless devices is served in the cell as a primary serving cell and a second group of other one or more of the wireless devices is served in the cell as a secondary serving cell, wherein the method comprises:
assigning higher priority to a respective radio bearer associated with the first group than to a respective radio bearer associated with the second group, based on the cell being a secondary serving cell with respect to the wireless devices in the second group; and scheduling the resources to the radio bearers based on the assigned priorities.

24 . The method as claimed in claim 23 , wherein the respective radio bearer associated with the second group is assigned lower priority than the respective radio bearer associated with the first group even when the radio bearers are associated a same quality of service requirement and experience a same quality of service.

25 . The method as claimed in claim 23 , wherein the respective radio bearer associated with the second group is assigned lower priority than the respective radio bearer associated with the first group, based on the priorities being limited by a maximal priority valid for assignment to the second group.

26 . The method as claimed in claim 23 , wherein the priority assigned to the respective radio bearer in the first group is assigned according to a first function and the priority assigned to the respective radio bearer in the second group is assigned according to a second function.

27 . The method as claimed in claim 26 , wherein the second function differs from the first function in that results obtained by the second function are limited by a maximal priority.

28 . The method as claimed in claim 23 , wherein the respective radio bearer associated with the second group is admitted to be set up and to be served in the cell, based on an indication that the respective radio bearer is associated with the cell as a secondary serving cell.

29 . The method as claimed in claim 28 , wherein the radio bearers are admitted to be set up without basing the admission on a present load in the cell.

30 . The method as claimed in claim 29 , wherein the present load refers to load according to one or more monitored system resources in the cell.

31 . A network node for scheduling of resources to radio bearers associated with wireless devices being served by a base station in a cell, the network node and the base station being configured to operate in a wireless communications system applying carrier aggregation, wherein a first group of one or more of the wireless devices is served in the cell as a primary serving cell and a second group of other one or more of the wireless devices is served in the cell as a secondary serving cell, wherein the network node comprises:
an assigning circuit configured to assign higher priority to a respective radio bearer associated with the first group than to a respective radio bearer associated with the second group, based on the cell being a secondary serving cell with respect to the second group; and a scheduling circuit configured to schedule the resources to the radio bearers based on the assigned priorities.

32 . The network node as claimed in claim 31 , wherein the respective radio bearer associated with the second group is assigned a lower priority than the respective radio bearer associated with the first group even when the radio bearers are associated with a same quality of service requirement and experience a same quality of service.

33 . The network node as claimed in claim 31 , wherein the respective radio bearer associated with the second group is assigned a lower priority than the respective radio bearer associated with the first group based on a maximal priority valid for assignment to the second group.

34 . The network node as claimed in claim 31 , wherein the priority assigned to the respective radio bearer associated with the first group is assigned according to a first function and the priority assigned to the respective radio bearer in the second group is assigned according to a second function.

35 . The network node as claimed in claim 34 , wherein the second function differs from the first function in that the results obtained by the second function are limited by a maximal priority.

36 . The network node as claimed in claim 31 , wherein the respective radio bearer associated with the second group is admitted to be set up and be served in the cell based on an identification that the radio bearer is associated with the cell as a secondary serving cell.

37 . The network node as claimed in claim 36 , wherein the radio bearers are admitted to be set up without basing the admission on a present load in the cell.

38 . The network node as claimed in claim 37 , wherein the present load refers to load according to one or more monitored system resources in the cell.

39 . A method in a network node for admitting a radio bearer to be set up and be served in a cell, the radio bearer being associated with a wireless device served by a base station in the cell, the network node and the base station operating in a wireless communications system applying carrier aggregation and the wireless device being served in the cell as a secondary serving cell, wherein the method comprises:
receiving a request for the radio bearer to be set up and be served in the cell; identifying that the received request relates to serving in the cell as a secondary serving cell; and admitting, based on the identification, the radio bearer to be set up and be served in the cell as a secondary serving cell.

40 . The method as claimed in claim 39 , wherein the radio bearer is admitted without basing the admission on a present load in the cell.

41 . The method as claimed in claim 40 , wherein the present load refers to load according to one or more monitored system resources in the cell.

42 . A network node for admitting a radio bearer to be set up and be served in a cell, the radio bearer being associated with a wireless device served by a base station in the cell, the network node and the base station being configured to operate in a wireless communications system applying carrier aggregation and the wireless device being served in the cell as secondary serving cell, wherein the network node comprises:
a receiving port configured to receive a request for the radio bearer to be set up and be served in the cell; an identifying circuit configured to identify that the received request relates to serving in the cell as a secondary serving cell; and an admitting circuit configured to admit, based on the identification, the radio bearer to be set up and be served in the cell as a secondary serving cell.

43 . The network node as claimed in claim 42 , wherein the radio bearer is admitted without basing the admission on a present load in the cell.

44 . The network node as claimed in claim 43 , wherein the present load refers to load according to one or more monitored system resources in the cell.

Assignees

• Ericsson Telefon Ab L M

Inventors

• Karlsson Robert

Classifications

• H04W72/566

  of the information or information source or recipient · CPC title

• H04W72/121 Primary

  for groups of terminals or users · CPC title

• H04W72/1247

  Electricity · mapped topic