Patents by Inventor Nianshan Shi

Nianshan Shi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20160254896
    Abstract: Example embodiments presented herein are directed towards a Radio Network Controller (RNC) (400) and a radio network node (101, 201), for example a eNodeB and/or a wireless terminal, and corresponding methods therein, for establishing a radio link without a DPCH/F-DPCH. The establishment of such a radio link may be provided by the RNC sending an indication to the radio network node. The indication may be in the form of a message type, a cause code, instructions or an IE comprising an absence of a DPCH/F-DPCH configuration. The communication message may comprise an indication to establish the radio link with only an E-HICH or both a E-HICH and a E-RGCH.
    Type: Application
    Filed: June 16, 2015
    Publication date: September 1, 2016
    Inventors: Nianshan Shi, Namir Lidian, Min Wang
  • Patent number: 9426751
    Abstract: A control node is configured to control a SIR-target for use by the radio network node when operating an Inner Loop Power Control. The radio network node receives a primary stream and a secondary stream while employing HSUPA MIMO. The radio network node detects a first indication of number of HARQ re-transmissions. The first indication is related to the primary stream. The radio network node detects a second indication of number of HARQ re-transmissions. The second indication is related to the secondary stream. The radio network node configures an Iub frame based on one or more of the first and second indication. The control node is configured to perform OLPC. Subsequently, the control node receives the Iub frame from the radio network node and extracts the first and/or second indication/s from the Iub frame. Next, the control node determines the SIR-target based on the first indication.
    Type: Grant
    Filed: September 5, 2013
    Date of Patent: August 23, 2016
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Nianshan Shi, Erik Larsson
  • Patent number: 9379862
    Abstract: A method and device for obtaining multipoint transmission to a user equipment via a first and a second cell of a wireless communication network. The first cell provides a first radio link to the user equipment at a first frequency. The device includes a link control unit configured to order the second cell to set up a second radio link to the user equipment at the first frequency in order to obtain multipoint transmission to the user equipment. A first notifying unit is configured to notify the first cell that it is a primary radio link participating in the multipoint transmission.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: June 28, 2016
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventor: Nianshan Shi
  • Publication number: 20160128132
    Abstract: A method in a network node for decoupling an uplink enhanced dedicated channel, E-DCH, and a high speed downlink shared channel, HS-DSCH, comprises determining whether a radio link message contains a E-DCH decoupling indication (step 201). Where it is determined that the radio link message does not contain an E-DCH decoupling indication, the method comprises controlling a base station node to reject a radio link procedure in the event that a serving E-DCH radio link and a serving HS-DSCH radio link are not configured in the same cell (step 203).
    Type: Application
    Filed: March 20, 2015
    Publication date: May 5, 2016
    Applicant: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Nianshan SHI, Helena IHRFORS, Niilo MUSIKKA
  • Patent number: 9306862
    Abstract: Explicit discard indications are used that allows a radio network controller, when operating in a multi-point High Speed Downlink Packet Access, HSDPA, scenario, to send data to a user equipment via plural radio base stations while reducing the risk for unnecessary duplicate data to be sent over the Uu interface between the radio base stations and the user equipment.
    Type: Grant
    Filed: November 17, 2014
    Date of Patent: April 5, 2016
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Anders Jonsson, Nianshan Shi
  • Publication number: 20160066308
    Abstract: A method in a network node is disclosed. The method comprises receiving, from a radio network controller (RNC), a request to send a high speed signaling control channel (HS-SCCH) order to a user equipment (UE) according to one of a first or second fast Transmission Time Interval (TTI) switching mode, the HS-SCCH order indicating that the UE should perform TTI switching. The method further comprises communicating, to the RNC in response to receiving the request to send the HS-SCCH order to the UE, feedback indicating a fast TTI switching mode supported by the network node.
    Type: Application
    Filed: August 12, 2015
    Publication date: March 3, 2016
    Inventor: Nianshan Shi
  • Publication number: 20160029418
    Abstract: The proposed technology relates to methods and network nodes for enabling resetting of network resources in a wireless network. For example, a method performed by a first network node comprises the step of providing at least one pair of information elements, each pair defining a respective range of identifiers within a list of identifiers, wherein each identifier within each range of identifiers is associated with a respective network resource to be reset.
    Type: Application
    Filed: January 27, 2015
    Publication date: January 28, 2016
    Inventors: Nianshan Shi, Martin Israelsson, Jacques Salerian
  • Publication number: 20150382314
    Abstract: A method in a network node for sending a pilot power value in a heterogeneous mobile communications network. The heterogeneous mobile communications network comprises a second set of base station nodes selected to operate in a Multiple Input Multiple Output, MIMO, -mode. The second set of base station nodes share a cell identity and are deployed within a coverage area. The network node computes (802) a pilot power value to be applicable when one or more mobile devices in the coverage area evaluates receipt of one or more Secondary Common Pilot Channels, S-CPICH, from a transmitter in said second set of base station nodes, wherein the computing is based on a measure indicative of a transmission power of the second set of base stations. The network node sends a signal to a radio network controller. The signal comprises the computed pilot power value, and enables the one or more mobile devices to be configured for MIMO operation.
    Type: Application
    Filed: January 17, 2014
    Publication date: December 31, 2015
    Applicant: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Sairamesh Nammi, Mark Curran, Namir Lidian, Nianshan Shi
  • Publication number: 20150350986
    Abstract: A method and NodeB for assisting, in a first NodeB, in soft handover procedures in WCDMA time division schedules comprises estimating (210) of a high bandwidth neighbour cell interference power for each time division slot. A first change trend of the estimated high bandwidth neighbour cell interference power is computed (212) for each of the time division slots. A future incoming soft handover event of a UE from a neighbour NodeB to the first NodeB, and a future incoming soft handover time for the future incoming soft handover event, is predicted (220). This prediction is based on the first change trend of the estimated high bandwidth neighbour cell interference power. Scheduling of time division slots of UEs is adapted (230) before the predicted future incoming soft handover time. This adaptation is configured to create interference power headroom for the predicted future incoming soft handover event.
    Type: Application
    Filed: January 15, 2013
    Publication date: December 3, 2015
    Inventors: Torbjörn WIGREN, Billy HOGAN, Nianshan SHI
  • Publication number: 20150326374
    Abstract: Techniques for supporting concurrent deployment of 2-millisecond and 10-millisecond TTI for E-DCH transmissions in CELL_FACH state and Idle Mode are disclosed. One example method comprises receiving a transport block from a mobile terminal, wherein said transport block is transmitted using either a 10-millisecond or 2-millisecond TTI, and sending, to an RNC, an indication of whether data carried by the transport block was transmitted using the 10-millisecond TTI or the 2-millisecond TTI. In some embodiments, the indication is sent in a user plane frame sent over a base-station-to-RNC interface. A spare bit in an uplink data frame sent to the RNC may be used, for example.
    Type: Application
    Filed: June 30, 2015
    Publication date: November 12, 2015
    Inventors: Nianshan Shi, Alessandro Caverni, Waikwok Kwong, Jose Pradas
  • Patent number: 9178585
    Abstract: Embodiments of the present disclosure provide methods and apparatus for configuring additional CPICHs, e.g. third CPICH, fourth CPICH, etc., to support MIMO transmissions of rank three or higher. The additional CPICHs may be configured with two or more power levels. A radio network controller (RNC) sends configuration information for the additional CPICHs to a serving base station in a cell to configure the additional CPICHs. The additional CPICHs can be configured to have a fixed power level, or multiple power levels. When the additional CPICHs are configured with multiple power levels, the base station can select the appropriate power level for each CPICH in dependence on current scheduling decisions in order to reduce inference.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: November 3, 2015
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Nianshan Shi, Cagatay Konuskan, Sairamesh Nammi
  • Publication number: 20150289256
    Abstract: Base stations and Radio Network Controllers, RNCs, and methods in such devices are disclosed. A base station (18) sends access indications to a RNC (20) indicating assignments and/or releases of common uplink resources. The RNC (20) uses the access indications received from the base station (18) to differentiate between successive accesses on the common uplink resources by a same User Equipment, UE (22), and to correspondingly differentiate between the processing of given data frames from the UE (22) as belonging to one or other of the successive accesses.
    Type: Application
    Filed: September 19, 2013
    Publication date: October 8, 2015
    Inventors: Nianshan Shi, Anders Forssell, Martin Israelsson, Francisco Manzano, Jose Luis Pradas
  • Publication number: 20150289243
    Abstract: A radio network controller, RNC, keeps control of how many users to configure on a first transmission time interval, TTI, and how many to configure on a second TTI. For example, a method is performed by the RNC, for configuring at least one radio bearer between a radio base station, RBS, and wireless communication devices. The method comprises sending, from the RNC to the RBS, radio bearer configuration information for controlling a distribution between a first number of wireless communication devices and a second number of wireless communication devices where the first number of wireless communication devices are operating a radio bearer using a first TTI, and the second number of wireless communication devices are operating a radio bearer using a second TTI.
    Type: Application
    Filed: April 10, 2014
    Publication date: October 8, 2015
    Inventors: Nianshan Shi, Alessandro Caverni, Billy Hogan, Waikwok Kwong, Jose Luis Pradas
  • Publication number: 20150264651
    Abstract: A control node is configured to control a SIR-target for use by the radio network node when operating an Inner Loop Power Control. The radio network node receives a primary stream and a secondary stream while employing HSUPA MIMO. The radio network node detects a first indication of number of HARQ re-transmissions. The first indication is related to the primary stream. The radio network node detects a second indication of number of HARQ re-transmissions. The second indication is related to the secondary stream. The radio network node configures an Iub frame based on one or more of the first and second indication. The control node is configured to perform OLPC. Subsequently, the control node receives the Iub frame from the radio network node and extracts the first and/or second indication/s from the Iub frame. Next, the control node determines the SIR-target based on the first indication.
    Type: Application
    Filed: September 5, 2013
    Publication date: September 17, 2015
    Inventors: Nianshan Shi, Erik Larsson
  • Publication number: 20150230227
    Abstract: The present disclosure relates to a base transceiver station, node B, a method and a controlling Radio Network Controller, CRNC, for setting up common Enhanced Dedicated Channel, E-DCH, resources in a cellular network. In one embodiment, the node B is arranged to configure the common E-DCH resources comprising deciding at least one E-DCH Radio Network Transaction Identifier, E-RNTI, range for the common E-DCH resources, and to send the at least one E-RNTI range for the common E-DCH resources to a Controlling Radio Network Controller, CRNC. Thereby, the common E-DHC resources are set up.
    Type: Application
    Filed: October 7, 2013
    Publication date: August 13, 2015
    Inventors: Nianshan Shi, Anders Forssell, Francisco Manzano, Jose Luis Pradas
  • Patent number: 9100164
    Abstract: Techniques for supporting concurrent deployment of 2-millisecond and 10-millisecond TTI for E-DCH transmissions in CELL_FACH state and Idle Mode are disclosed. One example method comprises receiving a (310) transport block from a mobile terminal, wherein said transport block is transmitted using either a 10-millisecond or 2-millisecond TTI, and sending (320), to an RNC, an indication of whether data carried by the transport block was transmitted using the 10-millisecond TTI or the 2-millisecond TTI. In some embodiments, the indication is sent in a user plane frame sent over a base-station-to-RNC interface. A spare bit in an uplink data frame sent to the RNC may be used, for example.
    Type: Grant
    Filed: June 18, 2013
    Date of Patent: August 4, 2015
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Nianshan Shi, Alessandro Caverni, Waikwok Kwong, Jose Luis Pradas
  • Publication number: 20150207552
    Abstract: A base station node (28) communicates over a radio interface (32) with a wireless terminal (30). The base station node (28) comprises a controller (60) which, upon basis of channel feedback received from the wireless terminal, is configured to make a precoding codebook bitmap decision (3-3) regarding a precoding codebook bitmap affecting transmissions between the base station (28) and the wireless terminal (30). The base station (28) is further configured to communicate the precoding codebook bitmap decision so that the precoding codebook bitmap decision may be implemented by the wireless terminal (30). In example embodiments and modes the base station (28) sends the precoding codebook bitmap decision using a bitmap decision signal to a radio network controller (26).
    Type: Application
    Filed: August 13, 2013
    Publication date: July 23, 2015
    Inventors: Sairamesh Nammi, Namir Lidian, Nianshan Shi
  • Patent number: 9084255
    Abstract: Embodiments herein relate to a method in a radio base station for handling Uplink Closed Loop Transmit Diversity, UL CLTD. The radio base station is configured to control UL CLTD of a user equipment (10) served by the radio base station. The radio base station receives from a radio network controller (15) an indication indicating a change in the UL CLTD. The radio base station then removes UL CLTD related operation for the user equipment based on the received indication.
    Type: Grant
    Filed: August 1, 2014
    Date of Patent: July 14, 2015
    Assignee: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
    Inventor: Nianshan Shi
  • Publication number: 20150195021
    Abstract: Embodiments herein relate to a method in a radio base station for handling Uplink Closed Loop Transmit Diversity, UL CLTD. The radio base station is configured to control UL CLTD of a user equipment (10) served by the radio base station. The radio base station receives from a radio network controller (15) an indication indicating a change in the UL CLTD. The radio base station then removes UL CLTD related operation for the user equipment based on the received indication.
    Type: Application
    Filed: March 3, 2015
    Publication date: July 9, 2015
    Inventor: Nianshan Shi
  • Publication number: 20150139183
    Abstract: Mechanisms are provided for several aspects of network communications relating to a UE reporting cell reselection. These include how the network configures or indicates to the UE that it should report cell reselection to the network; how the UE indicates a cell reselection to the network; and how the RNC indicates to the Node-B that the UE is in need of cell reselection. Implementation of these mechanisms avoids the problems of a UE reselecting a cell and leaving voluminous data at the source cell, which may become lost, and a UE having common E-DCH resources being unable to reselect another cell, even when it leaves a serving cell's operating area.
    Type: Application
    Filed: October 1, 2013
    Publication date: May 21, 2015
    Inventors: Jose Luis Pradas, Waikwok Kwong, Nianshan Shi