Patents by Inventor Vinh Phan

Vinh Phan 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: 20080010677
    Abstract: The exemplary embodiments of the invention provide apparatus, methods and computer program products that enable improved sequence number handling in networks, such as an evolved universal terrestrial radio access network (E-UTRAN), for example. In one non-limiting, exemplary embodiment, a method includes: generating a sequence number offset value; and transmitting a protected message having the generated sequence number offset value over a wireless communication link from a first device towards a second device, wherein the generated sequence number offset value is for use by the second device in generating a sequence number for a subsequent transmission. As non-limiting examples, the first device may be one of a mobile station or a base station, the second device may be one of a mobile station, a base station or a center node, and if one of the first device or the second device is a mobile station then the other of the first device and the second device is not a mobile station.
    Type: Application
    Filed: June 25, 2007
    Publication date: January 10, 2008
    Inventors: Tsuyoshi Kashima, Dan Forsberg, Vinh Phan, Benoist Sebire, Dajiang Zhang
  • Publication number: 20070248025
    Abstract: A method, computer program, and apparatus adaptively select a segmentation option for service data units based on a bandwidth allocation. In general terms, one of a first segmentation option or a second segmentation option is selected based on a bandwidth allocation that is selected from among several possible bandwidth allocation options. A service data unit is segmented according to the selected segmentation option and wirelessly transmitted. In an embodiment, the first segmentation option uses a predetermined length such as a fixed length that may be chosen to match an IP packet size, or a predetermined maximum length to which the size of segmented units are constrained, and segmentation occurs prior to packet scheduling. In an embodiment, the second segmentation option uses a dynamic length that changes per transmission time interval, and segmentation occurs after packet scheduling and after the size of the transport block is determined.
    Type: Application
    Filed: February 13, 2007
    Publication date: October 25, 2007
    Inventors: Vinh Phan, Tsuyoshi Kashima, Kimmo Kettunen
  • Publication number: 20070207788
    Abstract: Radio resource control in a wireless telecommunication system is provided. The control procedure includes: including a Random Access Channel control information element in a paging message to be transmitted to more than one user terminal in the same cell at the same time by the network element, the Random Access Channel control information element being dependent on the number of user terminals being paged; and controlling the transmissions of the more than one user terminal on the one or more Random Access Channels on the basis of the Random Access Channel control information element.
    Type: Application
    Filed: November 2, 2006
    Publication date: September 6, 2007
    Inventors: Vinh Phan, Markku Vainikka
  • Publication number: 20070189332
    Abstract: Apparatus, methods, computer program products and data structures are provided that enable effective in-band signaling and data structures for adaptive control and operation of segmentation. An exemplary method includes: determining, during an ongoing wireless communication, that a current communication scheme is to be changed to a new communication scheme including one of a new segmentation scheme or a new non-segmentation scheme; and sending a control protocol data unit (C-PDU) from a first device to a second device, wherein the C-PDU includes identification information identifying the new communication scheme and control information related to the new communication scheme.
    Type: Application
    Filed: February 13, 2007
    Publication date: August 16, 2007
    Inventors: Vinh Phan, Tsuyoshi Kashima, Kimmo Kettunen, Jukka Ranta
  • Publication number: 20070184865
    Abstract: A method includes determining if a user equipment has a need to establish uplink synchronization with a base station. In response to determining that the user equipment has the need to establish uplink synchronization with the base station, a determination is made if uplink resources are available on a non-contention-based channel for the user equipment. In response to determining that uplink resources are available on the non-contention-based channel for the user equipment, the uplink resources are dedicated on the non-contention-based channel to the user equipment and an indication of the dedicated uplink resources is communicated to the user equipment. Using at least the uplink resources, the user equipment is synchronized on the non-contention-based channel in order to receive information from the user equipment.
    Type: Application
    Filed: February 7, 2007
    Publication date: August 9, 2007
    Inventors: Vinh Phan, Markku Vainikka
  • Publication number: 20070177630
    Abstract: A method includes receiving at least one transport block and determining from the at least one transport block a first data unit, wherein a portion but not all of the first, data unit includes a second data unit; determining information corresponding to acknowledgement status of the first data unit; determining, based at least on the information, whether a request should be performed requesting retransmission of the second data unit; and performing the request in response to a determination the request should be performed. Another method includes determining information corresponding to acknowledgement status of a previously transmitted data unit, wherein a portion but not all of the previously transmitted data unit includes a second data unit; determining, based at least on the information, whether retransmission of the second data unit should occur; and performing the retransmission of the second data unit in response to a determination the retransmission should be performed.
    Type: Application
    Filed: November 29, 2006
    Publication date: August 2, 2007
    Inventors: Jukka Ranta, Tsuyoshi Kashima, Esa Malkamaki, Jussi Kahtava, Kimmo Kettunen, Vinh Phan
  • Publication number: 20070076667
    Abstract: A series of logical channel identifiers LCIDs, each associated with one radio link service profile RLSP, is stored in a local memory. The local memory is accessed whenever a LCID is taken into use for identifying an active logical channel, and each RLSP includes a set of radio link service parameters at least one of which is a quality of service parameter. A first data packet bearing a LCID and establishing a flow is received over a wireless logical channel. The local memory is accessed to determine if an RLSP is associated with the LCID of the first data packet. For the case where an RLSP is not associated with the LCID in the local memory, the LCID is associated with a designated default RLSP, and the first data packet is processed using the designated default RLSP. Predetermined and custom RLSPs are also described, as are methods, devices, programs, an integrated circuits embodying the invention.
    Type: Application
    Filed: October 3, 2006
    Publication date: April 5, 2007
    Inventors: Tsuyoshi Kashima, Kimmo Kettunen, Mikko Rinne, Vinh Phan
  • Publication number: 20060268789
    Abstract: Radio resource control in an HSUPA system is provided. The control procedure includes communicating data blocks between user equipment and a network infrastructure over a physical High Speed Uplink Packet Access channel, and communicating block information messages between the user equipment and the network infrastructure. The control procedure also includes adjusting a power offset value between the physical High Speed Uplink Packet Access channel and a Dedicated Physical Control Channel on the basis of at least one block information message.
    Type: Application
    Filed: May 11, 2006
    Publication date: November 30, 2006
    Inventors: Ling Yu, Vinh Phan
  • Publication number: 20060084459
    Abstract: A faster power control method especially of use in case of a UE device communicating with a SAP (e.g. a Node B) of a UTRAN via E-DCH, where instead of the SAP (e.g. a Node B) receiving from the serving RNC a new SIR target to use because of changing channel conditions in what is called outer loop power control, the SAP instead receives a BLER target or a target value for some other indicator of channel quality to use as a guide for determining, by itself, an appropriate SIR target.
    Type: Application
    Filed: October 13, 2004
    Publication date: April 20, 2006
    Inventors: Vinh Phan, Ramin Baghaie, Karri Ranta-Aho
  • Publication number: 20060079264
    Abstract: A faster power control method especially of use in case of a UE device communicating with a SAP (e.g. a Node B) of a UTRAN via E-DCH, where instead of the SAP (e.g. a Node B) receiving from the serving RNC a new SIR target to use because of changing channel conditions in what is called outer loop power control, the SAP instead receives a BLER target or a target value for some other indicator of channel quality (such as a new-data indicator value of EUPA) to use as a guide for determining, by itself, an appropriate SIR target.
    Type: Application
    Filed: November 12, 2004
    Publication date: April 13, 2006
    Inventors: Jian Gu, Vinh Phan, Ramin Baghaie, Karri Ranta-Aho