公开(公告)号：US10334585B2

公开(公告)日：2019-06-25

申请号：US14776952

申请日：2013-03-15

Applicant: Nokia Solutions and Networks Oy

Inventor： Zoltan Vincze ,  Csaba Vulkan ,  Arpad Drozdy

IPC: H04W72/04 ,  H04B7/024 ,  H04B7/06 ,  H04W92/20

Abstract: A method for coordinated multipoint transmission includes collecting, in a serving CoMP-MA, channel state information, CSIs, reported by terminals served by eNBs within a cooperating set. The serving CoMP-MA selects dominant interferers as candidate transmitting eNBs for a terminal. CoMP joint transmission is initiated by forwarding, to the candidate transmitting eNBs, PDCP PDUs received from SGW and targeted to the selected terminal, and by setting the status of the terminal to joint transmission. High and low thresholds of PDCP buffers of the serving CoMP-MA are adjusted. As information required for air interface scheduling becomes available, the method includes extracting, in the serving CoMP-MA, radio resource allocations, RLC and MAC headers, references to user plane data, and precoding matrices from protocol entities, and forwarding them to the transmitting eNBs that have acknowledged PDCP PDUs, in order the transmitting CoMP-MA to prepare air interface for the terminal.

公开(公告)号：US10939357B2

公开(公告)日：2021-03-02

申请号：US16444249

申请日：2019-06-18

Applicant: Nokia Solutions and Networks Oy

Inventor： Esa Malkamaki ,  Arpad Drozdy ,  Henri Koskinen ,  Dawid Koziol

IPC: H04W40/36 ,  H04W40/22 ,  H04W28/04 ,  H04W92/12 ,  H04W80/02 ,  H04W88/08

Abstract: According to a first embodiment, a method may include receiving, by a source network entity, a trigger. The method may further include, in response to receiving a trigger, generating, by the source network entity, at least one adaptation layer status report indicating at least one adaptation layer protocol data unit. The method may further include transmitting, by the source network entity, the at least one adaptation layer status report to a target network entity.