公开(公告)号：WO2023063855A1

公开(公告)日：2023-04-20

申请号：PCT/SE2021/050995

申请日：2021-10-12

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

Inventor： RUGELAND, Patrik ,  ERICSON, Mårten ,  MILDH, Gunnar ,  WAGER, Stefan

IPC: H04W76/00

Abstract: A method performed by a radio node for handling paths for transmissions related to data packets in a wireless communications network is provided, wherein the radio node is a wireless device or a network node 110. The wireless device is connected via three or more paths to one or more cell groups. The wireless device is configured with a split radio bearer to the MCG, SCG, and the third cell group. The radio node obtains (802) characteristics of paths associated to the split radio bearer between the wireless device and the respective MCG, SCG, and the at least one third cell group. Based on the obtained characteristics of the respective path, the radio node establishes (803) whether or not to transmit replicas of the data packets, and which one or more paths out of the three or more paths associated to the split radio bearer that shall be used for any one out of transmitting the data packets on or transmitting replicas of the data packets on.

公开(公告)号：WO2022066071A1

公开(公告)日：2022-03-31

申请号：PCT/SE2020/050889

申请日：2020-09-22

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

Inventor： MILDH, Gunnar ,  TEYAB, Oumer ,  VIKBERG, Jari ,  SCHLIWA-BERTLING, Paul

IPC: H04W76/19

Abstract: Methods and apparatus are provided. In an example aspect, a method in a User Equipment (UE) of performing a RRC re-establishment procedure is provided. The method comprises receiving an instruction from a network node to perform a RRC re-establishment procedure, and transmitting a RRC re-establishment request.

公开(公告)号：WO2021019498A1

公开(公告)日：2021-02-04

申请号：PCT/IB2020/057223

申请日：2020-07-30

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

Inventor： ROELAND, Dinand ,  ERIKSSON, Göran ,  MILDH, Gunnar

IPC: H04L12/24 ,  H04W64/00

Abstract: Systems and methods are disclosed herein for User Equipment (UE) assisted data collection for mobility prediction. In one embodiment, a method performed by a UE for UE-assisted data collection for mobility prediction comprises receiving, from a network node of a cellular communications system, a UE trajectory prediction model for predicting a UE trajectory. The method further comprises executing the UE trajectory prediction model to generate a predicted trajectory for the UE, comparing the actual UE trajectory to the predicted UE trajectory, and sending, to a network node of the cellular communications system, a result of the comparison of the actual UE trajectory to the predicted UE trajectory. In this manner, mobility prediction performance is improved.

公开(公告)号：WO2021006789A3

公开(公告)日：2021-01-14

申请号：PCT/SE2020/050602

申请日：2020-06-10

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

Inventor： TEYAB, Oumer ,  BARAC, Filip ,  MILDH, Gunnar

IPC: H04W76/12 ,  H04W76/11 ,  H04W88/08 ,  H04W88/12 ,  H04W40/02 ,  H04W28/18 ,  H04W28/02

Abstract: In an example, a method performed by central unit control plane, CU-CP, of a base station for providing Integrated Access and Backhaul, IAB, bearer mapping information is disclosed. The base station is configured as a donor base station for one or more IAB nodes. The method comprises transmitting, to a distributed unit DU of the base station which is configured as a donor DU for one or more IAB nodes, mapping information to map one or more field values to one or more backhaul radio link control BH RLC channels between the DU and a first IAB node on a downlink path.

公开(公告)号：WO2021006783A1

公开(公告)日：2021-01-14

申请号：PCT/SE2020/050543

申请日：2020-05-29

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

Inventor： BARAC, Filip ,  MULLER, Julien ,  MILDH, Gunnar ,  TEYAB, Oumer

IPC: H04B7/26

Abstract: Mapping Information for Integrated Access and BackhaulEmbodiments described herein relate to methods and apparatus for providing IAB mapping information. A method performed by CU-CP of a base station configured as a donor base station for one or more IAB nodes comprises transmitting a first message to setup or modify a first bearer context for a first bearer in a central unit user plane, CU-UP, of the base station, wherein the first message comprises an information element indicating mapping information for use in determining a mapping of the first bearer to a backhaul radio link control, BH RLC, channel.

公开(公告)号：WO2020197454A1

公开(公告)日：2020-10-01

申请号：PCT/SE2019/050280

申请日：2019-03-28

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

Inventor： HALL, Göran ,  RUNE, Göran ,  MILDH, Gunnar ,  VIKBERG, Jari ,  MATTSSON, Ulf

IPC: H04W68/00

Abstract: In an aspect, a method of a node (228) configured to provide core network user plane functionality in a communications network (200) to enable paging of a wireless communication device (210) being in an idle state is provided. The method comprises receiving (S101) an indication that data is to be transmitted in downlink to the wireless communication device (210), identifying (S102), in response to the received downlink data indication, a radio access network control plane function (225) to which the wireless communication device (210) was connected before entering the idle state, and sending (S103), to the identified radio access network control plane function (225), a downlink data notification comprising an identifier of the wireless communication device (210), thereby enabling for the identified radio access network control plane function (225) to trigger paging of the wireless communication device (210).

公开(公告)号：WO2020197451A1

公开(公告)日：2020-10-01

申请号：PCT/SE2019/050267

申请日：2019-03-25

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

Inventor： VIKBERG, Jari ,  HALL, Göran ,  MATTSSON, Ulf ,  MILDH, Gunnar ,  RUNE, Göran

IPC: H04W92/04

Abstract: A network node ( 22 8 ) configured to connect a wireless communication device ( 210 ) to a user plane in a wireless communication network ( 200 ) in which the network node ( 22 8 ) is arranged is provided, the network node ( 22 8 ) comprising a processing unit ( 115 ) and a memory ( 117 ), said memory containing instructions ( 11 6 ) executable by said processing unit, whereby the network node ( 22 8 ) is operative to provide core network user plane functionality, provide radio access network user plane functionality, the network node ( 22 8 ) further being arranged with a first direct interface to a core network control plane function ( 222 ) configured to provide session management via which the core network user plane functionality is configured and a second direct interface to a radio access network control plane function ( 225 ) via which the radio access network user plane functionality is configured

公开(公告)号：WO2020176032A2

公开(公告)日：2020-09-03

申请号：PCT/SE2020/050219

申请日：2020-02-27

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

Inventor： RUGELAND, Patrik ,  DA SILVA, Icaro L. J. ,  MILDH, Gunnar

IPC: H04W76/27 ,  H04W60/02

Abstract: A wireless device (16) suspends a connection (18) with a first access network (12A) and enters an inactive state. While the connection (18) with the first access network (12A) is suspended and the wireless device (16) is in the inactive state, the wireless device (16) camps in a specific area (24B) of a second wireless communication network (10B) that is included in a notification area (24) within which the wireless device (16) is allowed to move without notifying either the second wireless communication network (10B) or a first wireless communication network (10A) that includes the first access network (12A). Upon camping in the specific area (24B), the wireless device (16) starts a timer (40). Responsive to expiry of the timer (40), the wireless device (16) switches from the inactive state to an idle state and/or transmits to the second access network (12B) signaling (26) indicating that the wireless device (16) is in the specific area (24B) or that the wireless device (16) requests a connection to the second access network (12B).

公开(公告)号：WO2020085969A1

公开(公告)日：2020-04-30

申请号：PCT/SE2019/050935

申请日：2019-09-27

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

Inventor： PRADAS, Jose Luis ,  MUHAMMAD, Ajmal ,  MILDH, Gunnar ,  TEYEB, Oumer

IPC: H04L12/707 ,  H04L12/703 ,  H04L12/825 ,  H04W40/22 ,  H04W40/34

Abstract: Embodiments include methods for managing a link failure in an integrated access backhaul (IAB) network, such as performed by an intermediate node. Such embodiments include receiving, from a first upstream node in the IAB network, a first indication of failure of a first backhaul link in a first network path that includes the intermediate node, the first upstream node, and a destination node for uplink data in the IAB network. Embodiments also include, in response to the first indication, performing one or more first actions with respect to transmission of UL data towards the first upstream node. Embodiments also include, based on information associated with the first indication, selectively forwarding the first indication (e.g., based on content of the first indication) to one or more downstream nodes in the IAB network. Other embodiments include complementary methods as well as network nodes configured to perform any of the methods.

公开(公告)号：WO2020067961A1

公开(公告)日：2020-04-02

申请号：PCT/SE2019/050878

申请日：2019-09-18

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

Inventor： RUGELAND, Patrik ,  MILDH, Gunnar ,  DA SILVA, Icaro L. J.

IPC: H04W76/16 ,  H04W36/14

Abstract: A UE (120) and a method for resuming a radio connection in a communications network (100) comprising a first RAT and a different second RAT. The UE operates in a first cell (11) served by the first RAT. When a connection with the first cell is suspended,the UE performs a re-selection to a second cell (12) served by the second RAT, and triggers RRC resume in the second cell. The UE receives a first set of parameters associated with the first cell, which first set comprises at least one parameter identifying the UE or the first cell. Further, the UE receives a second set of parameters associated with the second cell, which second set comprises at least one parameter identifying the UE or the second cell. The UE determines a security token based on the first and second sets, and transmits the security token to the second cell.