公开(公告)号：WO2002029994A3

公开(公告)日：2002-04-11

申请号：PCT/EP2001/011082

申请日：2001-09-25

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) ,  CARLSSON, Torsten ,  GUSTAFSSON, Kjell ,  ATARIUS, Roozbeh ,  ERIKSSON, Håkan ,  ÖSTBERG, Christer ,  PALENIUS, Torgny

Inventor： CARLSSON, Torsten ,  GUSTAFSSON, Kjell ,  ATARIUS, Roozbeh ,  ERIKSSON, Håkan ,  ÖSTBERG, Christer ,  PALENIUS, Torgny

IPC: H04B1/707

Abstract: A method and system enable matched filters of a CDMA system to be simplified using a two stage search. A course stage and a fine stage jointly produce the locations(s) of received signal path-rays. In a first stage, an oversampled digital signal (240) is decimated, and the decimated signal (415) is applied to a matched filter (420) to eventually produce an approximate location (460). In a second stage, the oversampled signal (240) is shifted based on the determined approximate location (460) and then correlated to a generated code (440), and a more-exact location is selected from the outputs of the correlations (450). Alternatively, a shifted version of the generated code (440) is correlated to the oversampled signal (240), and the more-exact location is selected from the outputs of those correlations (450).

公开(公告)号：WO2022002397A1

公开(公告)日：2022-01-06

申请号：PCT/EP2020/068582

申请日：2020-07-01

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

Inventor： WITTENMARK, Emma ,  ÖSTBERG, Christer ,  RONKAINEN, Henrik ,  STRAND, Johan ,  SÖLVE, Torbjörn ,  GUSTAFSSON, Kjell

IPC: H04L12/851 ,  H04L12/24 ,  H04L12/26 ,  H04L12/841 ,  H04L12/801 ,  H04L41/5025 ,  H04L43/0852 ,  H04L43/16 ,  H04L47/24 ,  H04L47/283 ,  H04L47/29 ,  H04L47/30

Abstract: A method for latency control in a communication network is disclosed. The method comprises identifying that a service is currently associated with a user device associated with the communication network, wherein a deviation between a latency requirement of the service and an internal latency performance of the communication network is bounded, and dynamically adjusting a configuration of the communication network for the service. In some embodiments, the dynamic adjustment is performed only for user devices associated with services with bounded deviation between the latency requirement of the service and the internal latency performance of the communication network. In some embodiments, dynamically adjusting the configuration of the communication network comprises controlling the communication network to provide latencies below a maximum latency threshold for the service. In some embodiments, the dynamic adjustment of the configuration of the communication network is based on the current traffic load. Corresponding apparatus, network node, and computer program product are also disclosed.

公开(公告)号：WO2022002395A1

公开(公告)日：2022-01-06

申请号：PCT/EP2020/068580

申请日：2020-07-01

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

Inventor： ÖSTBERG, Christer ,  SÖLVE, Torbjörn ,  GUSTAFSSON, Kjell ,  STRAND, Johan ,  WITTENMARK, Emma ,  RONKAINEN, Henrik

IPC: H04W72/12 ,  H04W72/1236

Abstract: A method for accommodation of latency variation in a communication network is disclosed. The method comprises identifying that a service is currently associated with a user device associated with the communication network, wherein a deviation between a latency requirement of the service and an internal latency performance of the communication network is bounded, predicting an upcoming reduction of communication network throughput for the user device, and configuring a scheduler to temporarily increase resource allocation for the user device in response to predicting the reduction of communication network throughput. In some embodiments, the prediction and configuration are performed only for user devices associated with services with bounded deviation between the latency requirement of the service and the internal latency performance of the communication network. In some embodiments, predicting the upcoming reduction of communication network throughput for the user device comprises predicting that a future communication network throughput value for the user device is lower than a throughput threshold value. In some embodiments, predicting the upcoming reduction of communication network throughput for the user device comprises determining that a probability for upcoming reduction of communication network throughput for the user device is larger than a reduction probability threshold value. Corresponding apparatus, network node and computer program product are also disclosed.

公开(公告)号：WO2022002394A1

公开(公告)日：2022-01-06

申请号：PCT/EP2020/068578

申请日：2020-07-01

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

Inventor： ÖSTBERG, Christer ,  WITTENMARK, Emma ,  STRAND, Johan ,  GUSTAFSSON, Kjell ,  SÖLVE, Torbjörn ,  RONKAINEN, Henrik

IPC: H04L12/801 ,  H04L12/841 ,  H04L12/911 ,  H04L12/825 ,  H04W28/02 ,  H04L47/127 ,  H04L47/263 ,  H04L47/283 ,  H04L47/823

Abstract: A method for accommodation of latency variation in a communication network is disclosed. The method comprises identifying that a service is currently associated with a user device associated with the communication network, wherein a deviation between a latency requirement of the service and an internal latency performance of the communication network is bounded, predicting an upcoming reduction of communication network throughput for the user device, and providing a rate adaptor associated with the service with a feedback indication in response to predicting the reduction of communication network throughput, wherein the feedback indication is for rate reduction of the service. In some embodiments, the prediction and provision are performed only for user devices associated with services with bounded deviation between the latency requirement of the service and the internal latency performance of the communication network. In some embodiments, predicting the upcoming reduction of communication network throughput for the user device comprises predicting that a future communication network throughput value for the user device is lower than a throughput threshold value. In some embodiments, predicting the upcoming reduction of communication network throughput for the user device comprises determining that a probability for upcoming reduction of communication network throughput for the user device is larger than a reduction probability threshold value. Corresponding apparatus, network node and computer program product are also disclosed. P81371 WO1

公开(公告)号：WO2022002393A1

公开(公告)日：2022-01-06

申请号：PCT/EP2020/068577

申请日：2020-07-01

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

Inventor： ÖSTBERG, Christer ,  WITTENMARK, Emma ,  RONKAINEN, Henrik ,  STRAND, Johan ,  GUSTAFSSON, Kjell ,  SÖLVE, Torbjörn

IPC: H04W28/02 ,  H04W36/00 ,  H04W28/0231 ,  H04W28/0236

Abstract: A method for accommodation of latency variation in a communication network is disclosed. The method comprises identifying that a service is currently associated with a user device associated with the communication network, wherein a deviation between a latency requirement of the service and an internal latency performance of the communication network is bounded, predicting an upcoming handover for the user device, and providing a rate adaptor associated with the service with a feedback indication in response to predicting the upcoming handover, wherein the feedback indication is for rate reduction of the service. In some embodiments, the prediction and provision are performed only for user devices associated with services with bounded deviation between the latency requirement of the service and the internal latency performance of the communication network. In some embodiments, predicting the upcoming handover for the user device comprises determining that a handover decision has been made for the user device. In some embodiments, predicting the upcoming handover for the user device comprises determining that a probability for handover of the user device is above a handover probability threshold value. Corresponding apparatus, network node and computer program product are also disclosed.

公开(公告)号：WO2019042541A1

公开(公告)日：2019-03-07

申请号：PCT/EP2017/071791

申请日：2017-08-30

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

Inventor： VIKBERG, Jari ,  GUSTAFSSON, Kjell ,  HEDBERG, Tomas

IPC: H04W8/20

CPC classification number: H04W8/205

Abstract: The present disclosure relates to methods, arrangements and computer program products for remote subscriber identification module (SIM) provisioning. When performed in a telematics control arrangement, the SIM provisioning method comprises establishing a wireless connection with one or more SIM profile management arrangement and obtaining a plurality of SIM profiles from at least one of the one or more SIM profile management arrangements based on location information for the telematics control arrangement and/or on capabilities of wireless communication resources accessible to the telematics control arrangement. Each SIM profile comprises personalized SIM information for communication in at least one wireless communication network of a respective service provider.

公开(公告)号：WO1996020539A1

公开(公告)日：1996-07-04

申请号：PCT/SE1995001546

申请日：1995-12-19

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (publ)

Inventor： TELEFONAKTIEBOLAGET LM ERICSSON (publ) ,  LINDQUIST, Björn ,  ISBERG, Martin ,  WENDELRUP, Heino ,  SALLENHAG, Martin ,  GUSTAFSSON, Kjell

IPC: H04B01/10

CPC classification number: H03D3/009 ,  H04B1/30 ,  H04L27/2275 ,  H04L27/2332

Abstract: A digitally compensated direct-conversion receiver includes devices for generating digital samples of a base-band in-phase signal and a base-band quadrature signal and for detecting the presence of a second-order product signal produced by an amplitude-modulated interfering signal. Also, the apparatus comprises a device for digitally compensating the digital samples by removing the second-order product signal, thereby producing compensated digital samples. In one method of digitally compensating samples of an information signal quadrature-modulating a carrier signal, estimated samples of a second-order product from a switched carrier signal are formed by averaging the digital samples during two time periods and by determining a time of ramps in the in-phase and quadrature signals that occur between the time periods due to the interfering signal. The digital samples may be differentiated and the results smoothed in determining the time of the ramps. In another apparatus, the estimated samples of the second-order product signal are produced by a device for averaging a square of a difference between respective digital samples of the in-phase signal and the quadrature signal, thereby determining an amplitude of the amplitude-modulated carrier signal, and a device for combining the amplitude and the digital samples, thereby generating the estimated samples.

Abstract translation: 数字补偿直接转换接收机包括用于产生基带同相信号和基带正交信号的数字样本的装置，并用于检测由幅度调制干扰信号产生的二阶乘积信号的存在。 此外，该装置包括一个用于通过去除二阶乘积信号对数字样本进行数字补偿从而产生经补偿的数字样本的装置。 在对对载波信号进行正交调制的信息信号的样本进行数字补偿的一种方法中，通过在两个时间段期间对数字样本进行平均并且通过确定在两个时间段内的斜坡时间来形成来自切换载波信号的二阶乘积的估计样本 由于干扰信号在时间周期之间发生的同相和正交信号。 可以区分数字样本，并且在确定斜坡的时间时平滑结果。 在另一装置中，二阶乘积信号的估计样本由用于对同相信号和正交信号的相应数字样本之间的差的平方进行平均的装置产生，由此确定幅度调制的幅度 载波信号和用于组合幅度和数字样本的装置，由此产生估计样本。

公开(公告)号：WO2022096080A1

公开(公告)日：2022-05-12

申请号：PCT/EP2020/080818

申请日：2020-11-03

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

Inventor： RONKAINEN, Henrik ,  SÖLVE, Torbjörn ,  WITTENMARK, Emma ,  STRAND, Johan ,  ÖSTBERG, Christer ,  GUSTAFSSON, Kjell

IPC: H04L12/801 ,  H04W28/02 ,  H04W36/22 ,  H04W76/25

Abstract: A method is disclosed for a radio access network control node operating in a communication network having an associated user device, wherein the user device has an ongoing application service session with an application server via the communication network. The method comprises detecting that a trigger condition is met for the user device, the trigger condition indicating an upcoming communication interruption in relation to the application service session. The method also comprises causing implementation of a temporary transmission rate adjustment of the application service session, wherein the temporary transmission rate adjustment provides a radio access channel margin accommodating the upcoming communication interruption. In some embodiments, causing implementation of the temporary transmission rate adjustment comprises transmitting an adjustment command to the user device and/or the application server. Corresponding methods for a user device and an application server are also disclosed, as well as corresponding apparatuses, radio access network control node, user device, application server, and computer program product.

公开(公告)号：WO2022002396A1

公开(公告)日：2022-01-06

申请号：PCT/EP2020/068581

申请日：2020-07-01

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

Inventor： ÖSTBERG, Christer ,  WITTENMARK, Emma ,  RONKAINEN, Henrik ,  STRAND, Johan ,  GUSTAFSSON, Kjell ,  SÖLVE, Torbjörn

IPC: H04W36/20 ,  H04W36/22 ,  H04W36/0058 ,  H04W36/00837 ,  H04W36/0085

Abstract: A method for latency control in a communication network is disclosed. The method comprises identifying that a service is currently associated with a user device associated with the communication network, wherein a deviation between a latency requirement of the service and an internal latency performance of the communication network is bounded, and dynamically adjusting one or more handover criteria for the user device associated with the service. In some embodiments, the dynamic adjustment is performed only for user devices associated with services with bounded deviation between the latency requirement of the service and the internal latency performance of the communication network. In some embodiments, dynamically adjusting one or more handover criteria comprises switching from a first handover criterion to a second handover criterion, wherein the first handover criterion corresponds to a first handover probability and the second handover criterion corresponds to a second handover probability which is lower than the first handover probability. In some embodiments, dynamically adjusting one or more handover criteria comprises associating the user device with a handover inertia and/or reducing a probability of handover. Corresponding apparatus, network node and computer program product are also disclosed.