公开(公告)号：US20150349860A1

公开(公告)日：2015-12-03

申请号：US14821939

申请日：2015-08-10

Applicant: BROADCOM CORPORATION

Inventor： Ron Porat ,  Matthew James Fischer ,  Eric J. Ojard

IPC: H04B7/04 ,  H04W88/08 ,  H04W88/02

CPC classification number: H04B7/0417 ,  H04B7/043 ,  H04B7/0456 ,  H04B7/0641 ,  H04B7/065 ,  H04B7/0658 ,  H04W88/02 ,  H04W88/08

Abstract: Differential feedback within multiple user, multiple access, and/or MIMO wireless communications. After full feedback signal(s) have been received by a communication device (e.g., one that is to be performing beamforming for use in subsequent signal transmission), differential feedback signal(s) are received. Those differential feedback signal(s) are employed to update the full feedback signal(s) thereby generating updated/modified full feedback signals. Over time, such updated/modified full feedback signals may subsequently be further updated based upon later received inferential feedback signal(s). Such differential feedback signaling takes advantage of time and/or frequency correlation in a communication channel to provide for reduced feedback overhead by feeding back a difference or delta (Δ) relative to a previous value. For example, instead of providing full feedback signals in each respective/successive communication, feedback overhead is reduced by providing a difference or delta (Δ).

公开(公告)号：US09668299B2

公开(公告)日：2017-05-30

申请号：US13902923

申请日：2013-05-27

Applicant: BROADCOM CORPORATION

Inventor： Jeyhan Karaoguz ,  Eric J. Ojard ,  Edward H. Frank

IPC: H04W88/06 ,  H04W88/10 ,  H04W74/00 ,  H04W84/12

CPC classification number: H04W88/06 ,  H04W74/00 ,  H04W84/12

Abstract: A novel solution is presented in which a MAC (Medium Access Controller) is implemented that includes multiple functionality types. This MAC may include functionality supporting communication according to one or more of the IEEE 802.11 WLAN (Wireless Local Area Network) related standards and also to one or more of the standards generated by the IEEE 802.15.3 PAN (Personal Area Network) working group. By providing this dual functionality of a multi-mode WLAN/PAN MAC, a communication device may adaptively change the manner in which it communicates with other communication devices. For example, in an effort to maximize throughput and overall efficiency of communication within a communication system, certain of the various devices may change from using the WLAN related standards to using the PAN related standards, and vice versa, based on any one or more of a variety of operational parameters including system configuration.

公开(公告)号：US09831929B2

公开(公告)日：2017-11-28

申请号：US14821939

申请日：2015-08-10

Applicant: BROADCOM CORPORATION

Inventor： Ron Porat ,  Matthew James Fischer ,  Eric J. Ojard

IPC: H04W4/00 ,  H04B7/0417 ,  H04B7/0456 ,  H04B7/04 ,  H04W88/02 ,  H04W88/08 ,  H04B7/06

CPC classification number: H04B7/0417 ,  H04B7/043 ,  H04B7/0456 ,  H04B7/0641 ,  H04B7/065 ,  H04B7/0658 ,  H04W88/02 ,  H04W88/08

Abstract: Differential feedback within multiple user, multiple access, and/or MIMO wireless communications. After full feedback signal(s) have been received by a communication device (e.g., one that is to be performing beamforming for use in subsequent signal transmission), differential feedback signal(s) are received. Those differential feedback signal(s) are employed to update the full feedback signal(s) thereby generating updated/modified full feedback signals. Over time, such updated/modified full feedback signals may subsequently be further updated based upon later received inferential feedback signal(s). Such differential feedback signaling takes advantage of time and/or frequency correlation in a communication channel to provide for reduced feedback overhead by feeding back a difference or delta (Δ) relative to a previous value. For example, instead of providing full feedback signals in each respective/successive communication, feedback overhead is reduced by providing a difference or delta (Δ).

公开(公告)号：US20130259019A1

公开(公告)日：2013-10-03

申请号：US13902923

申请日：2013-05-27

Applicant: BROADCOM CORPORATION

Inventor： Jeyhan Karaoguz ,  Eric J. Ojard ,  Edward J. Frank

IPC: H04W88/06

CPC classification number: H04W88/06 ,  H04W74/00 ,  H04W84/12

Abstract: A novel solution is presented in which a MAC (Medium Access Controller) is implemented that includes multiple functionality types. This MAC may include functionality supporting communication according to one or more of the IEEE 802.11 WLAN (Wireless Local Area Network) related standards and also to one or more of the standards generated by the IEEE 802.15.3 PAN (Personal Area Network) working group. By providing this dual functionality of a multi-mode WLAN/PAN MAC, a communication device may adaptively change the manner in which it communicates with other communication devices. For example, in an effort to maximize throughput and overall efficiency of communication within a communication system, certain of the various devices may change from using the WLAN related standards to using the PAN related standards, and vice versa, based on any one or more of a variety of operational parameters including system configuration.

Abstract translation: 提出了一种新颖的解决方案，其中实现了包括多种功能类型的MAC（介质访问控制器）。 该MAC可以包括支持根据IEEE 802.11 WLAN（无线局域网）相关标准中的一个或多个的通信的功能，并且还可以包括由IEEE 802.15.3 PAN（个人区域网络）工作组生成的一个或多个标准。 通过提供多模式WLAN / PAN MAC的这种双重功能，通信设备可以自适应地改变与其他通信设备进行通信的方式。 例如，为了最大限度地提高通信系统内的通信的吞吐量和整体效率，各种设备中的某些设备可以从使用WLAN相关标准改变为使用PAN相关标准，反之亦然，基于以下任何一种或多种 各种操作参数包括系统配置。