Ming Fen Yang

US Patent:

8649279, Feb 11, 2014

Filed:

Nov 24, 2009

Appl. No.:

12/625419

Inventors:

Ming Yang - San Diego CA, US
Manish Tripathi - San Diego CA, US
Mukesh K. Mittal - San Diego CA, US
Mustafa Saglam - San Diego CA, US

Assignee:

Qualcomm Incorporated - San Diego CA

International Classification:

G01R 31/08
G06F 11/00
G08C 15/00
H04J 1/16
H04J 3/14
H04L 1/00
H04L 12/26
H04W 4/00
H04J 3/00

US Classification:

370252, 370229, 370328, 370345

Abstract:

An apparatus and method for adaptively setting a Timer_Status_Prohibit (TSP) parameter, the method comprising receiving a category information from a first terminal; determining a threshold value based on the category information and transmitting the threshold value to the first terminal; starting a TSP timer and transmitting at least one data packet to the first terminal once the TSP timer has started; determining when the TSP timer exceeds the threshold value to discontinue transmitting the at least one data packet to the first terminal; receiving a status report from the first terminal; and using the status report, determining whether there is any missing or erroneously received data packet and retransmitting any missing or erroneously received data packet from the at least one data packet to the first terminal.

US Patent:

20110111765, May 12, 2011

Filed:

Oct 4, 2010

Appl. No.:

12/897713

Inventors:

Ming Yang - San Diego CA, US
Francesco Pica - San Diego CA, US
Long Duan - San Diego CA, US
Leonid Golovanevsky - La Jolla CA, US

International Classification:

H04W 72/04

US Classification:

4554521, 455513

Abstract:

Disclosed are systems, methods and computer program products for traffic volume reporting during radio access network (RAN) connection setup. In one aspect, the RAN broadcasts an indicator that it accepts traffic volume measurements (TVM) from access terminals (ATs) and an associated TVM threshold. An AT measures its traffic volume before requesting a connection with the RAN. If the traffic volume is above the threshold, AT transmits to the RAN a connection request containing a TVM indicator that the measured traffic volume from the AT is above the threshold. If the traffic volume is below the threshold, AT transmits to the RAN a connection request containing a TVM indicator that the traffic volume is below the threshold.

US Patent:

20130028081, Jan 31, 2013

Filed:

Jan 26, 2012

Appl. No.:

13/359167

Inventors:

Ming Yang - San Diego CA, US
Tom Chin - San Diego CA, US
Qingxin Chen - Del Mar CA, US
Guangming Shi - San Diego CA, US

International Classification:

H04W 28/08
H04W 36/22
H04W 48/20

US Classification:

370230

Abstract:

A method, an apparatus, and a computer program product for wireless communication are provided in connection with providing a process for balancing loads and reducing call blocking in a TD-SCDMA network. In one example, a user equipment (UE) is equipped to obtain a received signal code power (RSCP) value and a load factor value for each of one or more cells. The UE may be further equipped to rank the one or more cells based on a cell selection value derived from both the RSCP value and the load factor value and select a serving cell from the ranked one or more cells.

US Patent:

20130034080, Feb 7, 2013

Filed:

Feb 28, 2012

Appl. No.:

13/407665

Inventors:

Ming Yang - San Diego CA, US
Tom Chin - San Diego CA, US
Qingxin Chen - Del Mar CA, US
Guangming Shi - San Diego CA, US

Assignee:

Qualcomm Incorporated - San Diego CA

International Classification:

H04W 36/00

US Classification:

370331

Abstract:

A method of wireless communication includes receiving redirection information, from a source radio access technology (RAT), to set up a connection in a target RAT. The redirection information includes a fast return indication. A UE returns to the source RAT in accordance with the fast return indication after call release in the target RAT.

US Patent:

20130176866, Jul 11, 2013

Filed:

Jan 5, 2012

Appl. No.:

13/344441

Inventors:

Ming Yang - San Diego CA, US
Tom Chin - San Diego CA, US
Qingxin Chen - Del Mar CA, US
Guangming Shi - San Diego CA, US

International Classification:

H04W 24/00
H04W 36/00

US Classification:

370252

Abstract:

A method of wireless communication includes measuring and recording a path loss of a first downlink signal from a source base station, prior to attempting handoff from the source base station to a target base station. The path loss of a second downlink signal from the source base station is measured after unsuccessful handoff from the source base station to the target base station. A UE communicates with the source base station, after unsuccessful handoff, using an uplink timing corresponding to an uplink timing recorded prior to attempting handoff when a difference between the path loss of the first downlink signal and the path loss of the second downlink signal fails to meet a threshold value. A new uplink timing is used when the difference meets the threshold value.

US Patent:

20130201885, Aug 8, 2013

Filed:

Feb 2, 2012

Appl. No.:

13/364652

Inventors:

Ming Yang - San Diego CA, US
Tom Chin - San Diego CA, US
Qingxin Chen - Del Mar CA, US
Guangming Shi - San Diego CA, US

International Classification:

H04J 3/00

US Classification:

370280

Abstract:

In TDD-LTE wireless systems, an additional fourth preamble for the random access channel, called short RACH, may be used. If short RACH signaling is to be used, the random access preamble is transmitted in the uplink pilot time slot (UpPTS) field in the special subframe. The location of the uplink pilot time slot (UpPTS) is next to a downlink subframe. Therefore, interference from neighbor base stations may interfere with the short RACH preamble within the uplink pilot time slot. The interference to the short RACH will prevent the eNodeB from detecting the short RACH preamble and thus prevent the UE from accessing the network. An interference level on an Uplink Pilot Time Slot (UpPTS) may be measured and when the interference level exceeds a threshold value a User Equipment (UE) is instructed to disable short Random Access Channel (RACH) signaling. The UE may then be instructed to enable normal RACH. When the interference level falls below the threshold value the UE is instructed to resume short RACH signaling

US Patent:

20130223239, Aug 29, 2013

Filed:

Feb 28, 2012

Appl. No.:

13/407652

Inventors:

Ming Yang - San Diego CA, US
Tom Chin - San Diego CA, US
Mungal Singh Dhanda - Slough, GB
Guangming Shi - San Diego CA, US

Assignee:

QUALCOMM Incorporated - San Diego CA

International Classification:

H04W 24/10

US Classification:

370252

Abstract:

When a user equipment (UE) is operating in connected mode in a Time Division-Synchronous Code Division Multiple Access (TD-SCDMA) network all time slots may be allocated to communications, leaving insufficient time for the UE to perform measurement of neighboring radio access technologies (RATs). When the UE moves out of TD-SCDMA coverage, it may report to the base station and receive an instruction to switch into time division multiplexing (TDM) mode and to perform inter-RAT measurement while in TDM mode.

US Patent:

20130223354, Aug 29, 2013

Filed:

Feb 28, 2012

Appl. No.:

13/407672

Inventors:

Ming Yang - San Diego CA, US
Tom Chin - San Diego CA, US
Qingxin Chen - Del Mar CA, US
Guangming Shi - San Diego CA, US

Assignee:

QUALCOMM Incorporated - San Diego CA

International Classification:

H04W 72/04

US Classification:

370329

Abstract:

In multi-carrier wireless communications control channels are coordinated onto a single reference frequency for scheduling communications with mobile devices. Mobile devices may monitor all available control channels on a single reference frequency rather than over multiple frequencies, thereby reducing CPU processing and power consumption.