公开(公告)号：US12047908B2

公开(公告)日：2024-07-23

申请号：US17276806

申请日：2019-10-09

Applicant: Sony Corporation

Inventor： Basuki Priyanto ,  Nafiseh Mazloum ,  Anders Berggren ,  Lars Nord

IPC: H04W68/02 ,  H04W68/00

CPC classification number: H04W68/02 ,  H04W68/005

Abstract: A method performed in a wireless device, for enhancing paging operations with a network node is disclosed. The method comprises determining a group identifier based on a paging occurrence parameter, wherein the group identifier is indicative of a subset of wireless devices belonging to a paging group paged at a same paging occasion.

公开(公告)号：US12035185B2

公开(公告)日：2024-07-09

申请号：US16958315

申请日：2018-12-06

Applicant: SONY CORPORATION

Inventor： Anders Berggren ,  Rickard Ljung ,  Lars Nord

IPC: H04W36/00 ,  H04W36/08

CPC classification number: H04W36/00835 ,  H04W36/08

Abstract: The present disclosure relates to the area of mobility management In wireless communication systems, and in particular to methods for managing mobility of a wireless communication device (10) based on a discovery signal transmitted by the wireless communication device (10). According to a first aspect of embodiments it is provided a method, for use in a wireless communication device (10), for supporting mobility. The method comprises determining (S1) whether to transmit a discovery signal configured for use by one or more of the radio network nodes (30, 40) in a wireless communication network (1) for mobility and upon the determining being positive, transmitting (S4) the discovery signal, wherein the discovery signal comprises an identifier of the wireless communication device (10) and an indication that the discovery signal is for use in mobility management.

公开(公告)号：US11665570B2

公开(公告)日：2023-05-30

申请号：US17253694

申请日：2019-06-26

Applicant: Sony Corporation

Inventor： Rickard Ljung ,  Anders Berggren

IPC: H04W4/00 ,  H04W24/10 ,  H04L5/00 ,  H04W24/08 ,  H04W36/32 ,  H04W74/08

CPC classification number: H04W24/10 ,  H04L5/0051 ,  H04W24/08 ,  H04W36/32 ,  H04W74/0816

Abstract: An electronic device (14) detects when a downlink reference signal has not been received from a base station (12), and initiates transmission of an uplink reference signal (64) in response to determining that certain trigger criteria have been satisfied. Upon receiving the uplink reference signal (64) or a notification signal (60) from the electronic device (14), the base station (12) can perform various actions to maintain network mobility and handover performance. In this manner, the disclosed approach allows a network to maintain mobility and handover performance even when a base station (12) is unable to transmit downlink reference signals due to an occupied communication channel.

公开(公告)号：US11627509B2

公开(公告)日：2023-04-11

申请号：US17145731

申请日：2021-01-11

Applicant: Sony Corporation ,  Sony Mobile Communications Inc.

Inventor： Yuxin Wei ,  Brian Alexander Martin ,  Anders Berggren ,  Lars Nord

IPC: H04W36/00 ,  H04W36/08 ,  H04W84/02 ,  H04W36/14 ,  H04W76/30 ,  H04W76/27 ,  H04W24/10 ,  H04W74/08

Abstract: A wireless telecommunications system including a terminal device; first infrastructure equipment operable to communicate with the terminal device using a first radio access technology (RAT) and second infrastructure equipment operable to communicate with the terminal device using a second RAT. During a handover procedure for handover from the first infrastructure equipment as a source master infrastructure equipment to a third infrastructure equipment as a target master infrastructure equipment, the second infrastructure equipment is operable to communicate with the third infrastructure equipment using an interface associated with the second RAT so as to allow information necessary for completing the handover to be exchanged between the first infrastructure equipment and the third infrastructure equipment via the second infrastructure equipment.

公开(公告)号：US11240849B2

公开(公告)日：2022-02-01

申请号：US16766103

申请日：2018-11-26

Applicant: Sony Corporation

Inventor： Nafiseh Mazloum ,  Basuki Priyanto ,  Peter C. Karlsson ,  Rickard Ljung ,  Anders Berggren

IPC: H04W74/08 ,  H04L12/841 ,  H04W72/12 ,  H04W74/00 ,  H04W80/04

Abstract: A method comprises communicating, between a terminal (102) and a base station (101), an uplink control message (6001, 6003) of a random access procedure, the uplink control message (6001, 6003) comprising an indicator indicative of uplink payload data (6005, 6007) queued for transmission during the random access procedure. The method also comprises configuring the random access procedure depending on the indicator and communicating, in the random access procedure configured in accordance with the indicator, the uplink payload data (6005, 6007).

公开(公告)号：US11191009B2

公开(公告)日：2021-11-30

申请号：US16625059

申请日：2018-07-06

Applicant: Sony Corporation

Inventor： Anders Berggren ,  Rickard Ljung

IPC: H04W48/12 ,  H04W36/00 ,  H04W36/08 ,  H04W36/16 ,  H04W48/02 ,  H04W68/00 ,  H04W72/04

Abstract: The invention relates to cell re-selection as a consequence of UE mobility in a scenario where coverage enhancement (CE) is employed for multiple repetitions of messages communicated on a wireless link between the UE and the network, and where a CE policy defines a repetition level. Accordingly, a communication device (130) receives at least one downlink control message (6031) from a base station (112, 112-1) of a source cell (181) of a network (100), the at least one downlink control message (6031) being indicative of access restrictions of a plurality of candidate cells (182, 183) of the network (100); more particularly, the at least one downlink control message (6031) is indicative, for each candidate cell (182, 183) of the plurality of candidate cells (182, 183), of at least one respective regulated repetition level. Based on the at least one downlink control message (6031), the communication device (130) selects a target cell (182, 183) from the plurality of candidate cells (182, 183); and communication between the communication device (130) and a base station (112, 112-2, 112-3) of the target cell (182, 183) is performed.

公开(公告)号：US20210345289A1

公开(公告)日：2021-11-04

申请号：US17281092

申请日：2019-09-27

Applicant: SONY CORPORATION

Inventor： Basuki Priyanto ,  Anders Berggren

IPC: H04W64/00 ,  H04W16/28

Abstract: A method of operating a base station includes determining a schedule associated with transmission by the base station of a Positioning Reference Signal (PRS) on a plurality of directional beams, the plurality of directional beams having directions corresponding to at least a portion of a plurality of configurable beam directions, the schedule being based on a coordination of the PRS transmission by the base station with PRS transmission on directional beams from at least one other base station; and transmitting the PRS on each of the plurality of directional beams based on the determined schedule.

公开(公告)号：US11044649B2

公开(公告)日：2021-06-22

申请号：US16476300

申请日：2017-12-14

Applicant: Sony Corporation ,  Sony Mobile Communications Inc.

Inventor： Brian Alexander Martin ,  Shin Horng Wong ,  Martin Warwick Beale ,  Yuxin Wei ,  Vivek Sharma ,  Shinichiro Tsuda ,  Hideji Wakabayashi ,  Anders Berggren

IPC: H04W36/00 ,  H04W72/04 ,  H04W76/11 ,  H04L5/00 ,  H04W24/10 ,  H04W68/00

Abstract: A method of operating network infrastructure equipment in a wireless telecommunications network comprising the network infrastructure equipment and a terminal device, wherein the terminal device is operable to transmit uplink reference signalling to support measurements of radio channel conditions between the terminal device and the network infrastructure equipment, wherein the method comprises: receiving, from the terminal device, uplink reference signalling in accordance with a first uplink reference signalling configuration; determining the terminal device should be configured to transmit uplink reference signalling in accordance with a second uplink reference signalling configuration; and transmitting a paging message for the terminal device, wherein the paging message comprises an indication of an identifier for the terminal device and an indication of the second uplink reference signalling configuration.

公开(公告)号：US20190052435A1

公开(公告)日：2019-02-14

申请号：US16079115

申请日：2017-02-20

Applicant: Sony Corporation ,  Sony Mobile Communications Inc.

Inventor： Brian Alexander Martin ,  Anders Berggren ,  Martin Warwick Beale

IPC: H04L5/00 ,  H04W76/27 ,  H04W76/19 ,  H04W4/70 ,  H04W72/04

Abstract: A method of operating a terminal device in a wireless telecommunications network comprising the terminal device and a plurality of base stations arranged into groups of one or more base stations supporting communications over different areas. The method including establishing a radio resource control (RRC) connection with an initially selected base station and entering an RRC connected mode of operation with respect to the initially selected base station and suspending the RRC connection with the initially selected base station and entering an RRC suspended mode of operation. The method includes subsequently transmitting a message to request a resumed RRC connection to a subsequently selected base station, wherein the subsequently selected base station is selected in accordance with a cell (re)selection procedure for the terminal device performed while in the RRC suspended mode of operation.

公开(公告)号：US20190037431A1

公开(公告)日：2019-01-31

申请号：US16144955

申请日：2018-09-27

Applicant: SONY CORPORATION

Inventor： Brian Alexander MARTIN ,  Martin Warwick Beale ,  Hiroaki Takano ,  Anders Berggren

IPC: H04W24/10 ,  H04W72/04 ,  H04W24/08 ,  H04W16/14 ,  H04W76/27

Abstract: A method of operating a terminal device in a wireless telecommunications system that supports a connected mode of operation in which terminal devices receive a type user-plane data from the network infrastructure equipment using primary and/or secondary component carriers operating on different frequency bands and an idle mode of operation in which terminal devices do not receive that type of user-plane data from the network infrastructure equipment. The method includes: establishing a measurement configuration making measurements of radio channel conditions for radio resources within the second frequency band; making measurement of radio channel conditions for radio resources within the second frequency band in accordance with the measurement configuration while the terminal device is operating in the idle mode; determining if the measurement of radio channel conditions meets a trigger criterion, and if so, transmitting a measurement report to the network infrastructure equipment to indicate the trigger criterion has been met.