Patents by Inventor Senjie Zhang
Senjie Zhang 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).
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Patent number: 10912106Abstract: An apparatus for use in a radio aggregation unit (RAU) of a cloud radio access network (Cloud-RAN or C-RAN), the cloud-RAN including a radio cloud center (RCC) and a plurality of radio remote systems (RRS) coupled to the RCC, wherein each RRS comprises an RAU coupled to a plurality of Remote Radio Units (RRUs) is disclosed. The apparatus comprises an input circuit configured to receive a first scheduling result from the RCC and a scheduling circuit configured to generate a second scheduling result for scheduling the one or more UEs in the coverage area of the RAU. Further, the apparatus comprises a processing circuit configured to selectively schedule a select UE from one or more UEs in the coverage area of the RAU, based on the first scheduling result from the RCC or the second scheduling result or an integration of the first scheduling result and the second scheduling result, based on a predetermined threshold associated with a receipt time of the first scheduling result from the RCC at the RAU.Type: GrantFiled: December 23, 2015Date of Patent: February 2, 2021Assignee: Apple Inc.Inventors: Min Huang, Xu Sunny Zhang, Senjie Zhang, Shanshan Zheng, Hui Guo
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Patent number: 10306673Abstract: A front-end unit that operates within a C-RAN architecture to perform the functions of cellular signal processing and resource selection between an RRU and the BBU pool network is described. The front-end unit supports flexible load migration and CoMP (coordinated multipoint) in the CRAN BBU while also reducing data transmission within the BBU pool network or between the BBU pool network and the RRU.Type: GrantFiled: May 12, 2014Date of Patent: May 28, 2019Assignee: Intel CorporationInventors: Zhiyuan Zhang, Qianying Zhu, Xinxin Zhang, Shunyu Zhu, Xiangbin Wu, Xuebin Yang, Senjie Zhang, Guangjie Li, Xu Zhang
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Publication number: 20180359770Abstract: An apparatus for use in a radio aggregation unit (RAU) of a cloud radio access network (Cloud-RAN or C-RAN), the cloud-RAN including a radio cloud center (RCC) and a plurality of radio remote systems (RRS) coupled to the RCC, wherein each RRS comprises an RAU coupled to a plurality of Remote Radio Units (RRUs) is disclosed. The apparatus comprises an input circuit configured to receive a first scheduling result from the RCC and a scheduling circuit configured to generate a second scheduling result for scheduling the one or more UEs in the coverage area of the RAU. Further, the apparatus comprises a processing circuit configured to selectively schedule a select UE from one or more UEs in the coverage area of the RAU, based on the first scheduling result from the RCC or the second scheduling result or an integration of the first scheduling result and the second scheduling result, based on a predetermined threshold associated with a receipt time of the first scheduling result from the RCC at the RAU.Type: ApplicationFiled: December 23, 2015Publication date: December 13, 2018Inventors: Min Huang, Xu Sunny Zhang, Senjie Zhang, Shanshan Zheng, Hui Guo
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Patent number: 9893787Abstract: A MIMO beamforming method comprises receiving at a base station information regarding a difference between an ideal beamforming matrix and an averaged beamforming direction, using the information to construct a beamforming matrix at the base station, and performing a beamforming operation using the reconstructed beamforming matrix. Alternatively, the method comprises computing at a subscriber station an averaged beamforming direction, computing at the subscriber station a quantization index corresponding to a differential matrix in a differential codebook, and transmitting the quantization index across a wireless channel of the wireless network. The differential codebook may be constructed by identifying a codebook center and transforming a predefined codebook that is stored in a memory of a component of the wireless network.Type: GrantFiled: February 8, 2016Date of Patent: February 13, 2018Assignee: INTEL CORPORATIONInventors: Qinghua Li, Senjie Zhang, Hongming Zheng, Shanshan Zheng
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Publication number: 20160365910Abstract: A MIMO beamforming method comprises receiving at a base station information regarding a difference between an ideal beamforming matrix and an averaged beamforming direction, using the information to construct a beamforming matrix at the base station, and performing a beamforming operation using the reconstructed beamforming matrix. Alternatively, the method comprises computing at a subscriber station an averaged beamforming direction, computing at the subscriber station a quantization index corresponding to a differential matrix in a differential codebook, and transmitting the quantization index across a wireless channel of the wireless network. The differential codebook may be constructed by identifying a codebook center and transforming a predefined codebook that is stored in a memory of a component of the wireless network.Type: ApplicationFiled: February 8, 2016Publication date: December 15, 2016Applicant: Intel CorporationInventors: Qinghua Li, Senjie Zhang, Hongming Zheng, Shanshan Zheng
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Patent number: 9331814Abstract: In one embodiment, a method for data communication may include receiving a first set of soft bit values in a Hybrid Automatic Repeat-Request (HARQ) buffer using a first bit width. The method may also include soft combining the first set of soft bit values with a second set of soft bit values to obtain a set of combined soft bit values. The method may also include transforming the set of combined soft bit values from the first bit width to a decoder input bit width to obtain a set of transformed soft bit values.Type: GrantFiled: June 14, 2012Date of Patent: May 3, 2016Assignee: Intel CorporationInventors: Jinyu Cao, Senjie Zhang
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Patent number: 9301198Abstract: Embodiments of an enhanced Node B (eNB) configured for use in a cooperative radio access networks (C-RAN) and method for central baseband unit (BBU) processing are generally described herein. In some embodiments, the eNB may include a baseband unit (BBU) processing pool comprising a plurality of processing units. The BBU processing pool is configured to share the processing load of several sectors. A control unit may monitor the processing load of the processing units and perform dynamic load sharing by migrating the baseband processing between the processing units without changing a carrier used by user equipment operating with a sector.Type: GrantFiled: February 24, 2012Date of Patent: March 29, 2016Assignee: Intel CorporationInventors: Guangjie Li, Xuebin Yang, Senjie Zhang, Tin-Fook Ngai
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Patent number: 9265039Abstract: Wireless transmissions between a base station and a user equipment device may be performed using resource mapping rules. The resource mapping rules may be generated based on resource block descriptions. The resource block descriptions may be determined by matching symbols included in a resource block to a predefined set of symbol types. The symbol types may be determined based on transmission characteristics.Type: GrantFiled: June 1, 2012Date of Patent: February 16, 2016Assignee: Intel CorporationInventors: Jinyu Cao, Senjie Zhang
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Patent number: 9258047Abstract: A MIMO beamforming method comprises receiving at a base station information regarding a difference between an ideal beamforming matrix and an averaged beamforming direction, using the information to construct a beamforming matrix at the base station, and performing a beamforming operation using the reconstructed beamforming matrix. Alternatively, the method comprises computing at a subscriber station an averaged beamforming direction, computing at the subscriber station a quantization index corresponding to a differential matrix in a differential codebook, and transmitting the quantization index across a wireless channel of the wireless network. The differential codebook may be constructed by identifying a codebook center and transforming a predefined codebook that is stored in a memory of a component of the wireless network.Type: GrantFiled: November 21, 2013Date of Patent: February 9, 2016Assignee: INTEL CORPORATIONInventors: Qinghua Li, Senjie Zhang, Hongming Zheng, Shanshan Zheng
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Patent number: 9225405Abstract: Techniques for a precoding scheme for wireless communications are described. A method and apparatus may comprise a first device for a communications system to determine a beamforming structure for a closed loop transmit beamforming scheme using channel information, one or more scaling factors and one or more integers to represent a complex vector. The beamforming structure may include a codeword, a codebook and a codeword index. Other embodiments are described and claimed.Type: GrantFiled: June 2, 2014Date of Patent: December 29, 2015Assignee: INTEL CORPORATIONInventors: Qinghua Li, Shanshan Zheng, Hongming Zheng, Guangjie Li, Senjie Zhang, Alexei Davydov
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Patent number: 9136882Abstract: A system and method for uplink channel estimation for a software defined radio is disclosed. The method comprises dividing an allocated bandwidth for a received signal on the uplink channel into N segments. The uplink channel estimation is processed for each of the N segments as a separate process. The uplink channel estimation includes pre-processing each of the N segments of the received signal; Wiener filtering the pre-processed segments of the received signal in the frequency domain; and Wiener filtering each of the frequency filtered segments in the time domain to determine a channel estimate for each of the N segments for use in equalizing the received signal.Type: GrantFiled: September 24, 2010Date of Patent: September 15, 2015Assignee: INTEL CORPORATIONInventors: Senjie Zhang, Xuebin Yang, Guangjie Li, Peng Cheng
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Patent number: 9112562Abstract: An embodiment of the present invention provides a method, comprising using an adaptive codebook for beamforming for communications in wireless networks.Type: GrantFiled: December 29, 2008Date of Patent: August 18, 2015Assignee: INTEL CORPORATIONInventors: Qinghua Li, Hongming Zheng, Senjie Zhang, Xintian Eddie Lin, Shanshan Zheng, Guangjie Li
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Patent number: 9094072Abstract: A MIMO beamforming method comprises receiving at a base station information regarding a difference between an ideal beamforming matrix and an averaged beamforming direction, using the information to construct a beamforming matrix at the base station, and performing a beamforming operation using the reconstructed beamforming matrix. Alternatively, the method comprises computing at a subscriber station an averaged beamforming direction, computing at the subscriber station a quantization index corresponding to a differential matrix in a differential codebook, and transmitting the quantization index across a wireless channel of the wireless network. The differential codebook may be constructed by identifying a codebook center and transforming a predefined codebook that is stored in a memory of a component of the wireless network.Type: GrantFiled: April 2, 2012Date of Patent: July 28, 2015Assignee: INTEL CORPORATIONInventors: Qinghua Li, Senjie Zhang, Hongming Zheng, Shanshan Zheng
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Patent number: 9037091Abstract: Briefly, in accordance with one or more embodiments, data transmitted from a transmitter is received in a downlink channel, and channel quality data is fed back to the transmitter in a first uplink channel or in a second uplink channel. Channel quality data is feedback at a lower rate on the first uplink channel and channel quality data is feedback at a higher rate on the second uplink channel in the event there is a higher amount of data to be fed back. Link adaptation may be utilized to select a transmission rate on the second uplink channel, wherein the transmission rate is selected based at least in part on a channel condition or a user location.Type: GrantFiled: December 23, 2009Date of Patent: May 19, 2015Assignee: Intel CorporationInventors: Hongmei Sun, Changlong Xu, Qinghua Li, Yuan Zhu, Rath Vannithamby, Jong-Kae J. K. Fwu, Senjie Zhang, Yang Y. Gao, Hujun Yin
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Publication number: 20140269968Abstract: Techniques for a precoding scheme for wireless communications are described. A method and apparatus may comprise a first device for a communications system to determine a beamforming structure for a closed loop transmit beamforming scheme using channel information, one or more scaling factors and one or more integers to represent a complex vector. The beamforming structure may include a codeword, a codebook and a codeword index. Other embodiments are described and claimed.Type: ApplicationFiled: June 2, 2014Publication date: September 18, 2014Inventors: Qinghua Li, Shanshan Zheng, Hongming Zheng, Guangjie Li, Senjie Zhang, Alexei Davydov
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Publication number: 20140269322Abstract: Embodiments of an enhanced Node B (eNB) configured for use in a cooperative radio access networks (C-RAN) and method for central baseband unit (BBU) processing are generally described herein. In some embodiments, the eNB may include a baseband unit (BBU) processing pool comprising a plurality of processing units. The BBU processing pool is configured to share the processing load of several sectors. A control unit may monitor the processing load of the processing units and perform dynamic load sharing by migrating the baseband processing between the processing units without changing a carrier used by user equipment operating with a sector.Type: ApplicationFiled: February 24, 2012Publication date: September 18, 2014Inventors: Guangjie Li, Xuebin Yang, Senjie Zhang, Tin-Fook Ngai
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Publication number: 20140169341Abstract: A system and method for uplink channel estimation for a software defined radio is disclosed. The method comprises dividing an allocated bandwidth for a received signal on the uplink channel into N segments. The uplink channel estimation is processed for each of the N segments as a separate process. The uplink channel estimation includes pre-processing each of the N segments of the received signal; Wiener filtering the pre-processed segments of the received signal in the frequency domain; and Wiener filtering each of the frequency filtered segments in the time domain to determine a channel estimate for each of the N segments for use in equalizing the received signal.Type: ApplicationFiled: September 24, 2010Publication date: June 19, 2014Inventors: Senjie Zhang, Xuebin Yang, Guangjie Li, Peng Cheng
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Patent number: 8743985Abstract: Techniques for a precoding scheme for wireless communications are described. A method and apparatus may comprise a first device for a communications system to determine a beamforming structure for a closed loop transmit beamforming scheme using channel information, one or more scaling factors and one or more integers to represent a complex vector. The beamforming structure may include a codeword, a codebook and a codeword index. Other embodiments are described and claimed.Type: GrantFiled: December 15, 2009Date of Patent: June 3, 2014Assignee: Intel CorporationInventors: Qinghua Li, Shanshan Zheng, Hongming Zheng, Guangjie Li, Senjie Zhang, Alexei Davydov
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Publication number: 20140119330Abstract: Wireless transmissions between a base station and a user equipment device may be performed using resource mapping rules. The resource mapping rules may be generated based on resource block descriptions. The resource block descriptions may be determined by matching symbols included in a resource block to a predefined set of symbol types. The symbol types may be determined based on transmission characteristics.Type: ApplicationFiled: June 1, 2012Publication date: May 1, 2014Inventors: Jinyu Cao, Senjie Zhang
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Publication number: 20140078996Abstract: A MIMO beamforming method comprises receiving at a base station information regarding a difference between an ideal beamforming matrix and an averaged beamforming direction, using the information to construct a beamforming matrix at the base station, and performing a beamforming operation using the reconstructed beamforming matrix. Alternatively, the method comprises computing at a subscriber station an averaged beamforming direction, computing at the subscriber station a quantization index corresponding to a differential matrix in a differential codebook, and transmitting the quantization index across a wireless channel of the wireless network. The differential codebook may be constructed by identifying a codebook center and transforming a predefined codebook that is stored in a memory of a component of the wireless network.Type: ApplicationFiled: November 21, 2013Publication date: March 20, 2014Inventors: Qinghua Li, Senjie Zhang, Hongming Zheng, Shanshan Zheng