Rate Capping with Multiple Carrier Aggregation Schedulers

    公开(公告)号:US20170150511A1

    公开(公告)日:2017-05-25

    申请号:US15426107

    申请日:2017-02-07

    CPC classification number: H04W72/1205 H04W72/12

    Abstract: In a first aspect, requests for carrier aggregation scheduling for a user equipment are received (S41) from a first cell used for carrier aggregation for the user equipment in a cellular communications network and n second cells of the cellular communications network, used for the carrier aggregation. The requests include a first scheduling decision of the first cell and n second scheduling decisions of the n second cells. It is checked (S42) whether or not the requests exceed limits of the user equipment, and the n second scheduling decisions are modified (S43) according to predefined rules such that the requests do not exceed the limits of the user equipment. In a second aspect, limits of the user equipment are increased by a margin (S51), the increased limits are split onto active cells of the first and n second cells according to a predefined rule (S52), and the margin is controlled (S54) dependent on whether the increased and split limits are exceeded or not by the requests (S53). If they are exceeded, the n second scheduling decisions may be modified according to the first aspect (S43).

    Change of Rate Matching Modes in Presence of Channel State Information Reference Signal Transmission

    公开(公告)号:US20160242164A1

    公开(公告)日:2016-08-18

    申请号:US15140759

    申请日:2016-04-28

    Abstract: In one aspect thereof the exemplary embodiments of this invention provide a method that includes, prior to confirmation that a network access node has correctly acquired capabilities of a user equipment, operating a user equipment with the network access node in accordance with a first rate matching mode and, only after confirmation to the user equipment that the network access node has correctly acquired capabilities of the user equipment, changing the rate matching mode to a second rate matching mode. In an embodiment the first rate matching mode comprises puncturing a downlink shared channel transmission with a set of resource elements, which may be at least one of reference symbols and muted resource elements, and the second rate matching mode comprises rate matching the downlink shared channel around those resource elements that are members of the set of resource elements. Also described are apparatus and computer readable storage medium storing program code that operate in accordance with the method.

    Change of rate matching modes in presence of channel state information reference signal transmission

    公开(公告)号:US10098124B2

    公开(公告)日:2018-10-09

    申请号:US15140759

    申请日:2016-04-28

    Abstract: In one aspect thereof the exemplary embodiments of this invention provide a method that includes, prior to confirmation that a network access node has correctly acquired capabilities of a user equipment, operating a user equipment with the network access node in accordance with a first rate matching mode and, only after confirmation to the user equipment that the network access node has correctly acquired capabilities of the user equipment, changing the rate matching mode to a second rate matching mode. In an embodiment the first rate matching mode comprises puncturing a downlink shared channel transmission with a set of resource elements, which may be at least one of reference symbols and muted resource elements, and the second rate matching mode comprises rate matching the downlink shared channel around those resource elements that are members of the set of resource elements. Also described are apparatus and computer readable storage medium storing program code that operate in accordance with the method.

    Rate capping with multiple carrier aggregation schedulers

    公开(公告)号:US09820293B2

    公开(公告)日:2017-11-14

    申请号:US15426107

    申请日:2017-02-07

    CPC classification number: H04W72/1205 H04W72/12

    Abstract: In a first aspect, requests for carrier aggregation scheduling for a user equipment are received (S41) from a first cell used for carrier aggregation for the user equipment in a cellular communications network and n second cells of the cellular communications network, used for the carrier aggregation. The requests include a first scheduling decision of the first cell and n second scheduling decisions of the n second cells. It is checked (S42) whether or not the requests exceed limits of the user equipment, and the n second scheduling decisions are modified (S43) according to predefined rules such that the requests do not exceed the limits of the user equipment. In a second aspect, limits of the user equipment are increased by a margin (S51), the increased limits are split onto active cells of the first and n second cells according to a predefined rule (S52), and the margin is controlled (S54) dependent on whether the increased and split limits are exceeded or not by the requests (S53). If they are exceeded, the n second scheduling decisions may be modified according to the first aspect (S43).

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