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US 2020/0052762 A1Published application
Method and device for channel information feedback
AssigneeHuawei Technologies Co., Ltd.
InventorsXun YANG, Yi LUO, Jing LI
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Abstract
The present disclosure provides a method and a device for channel information feedback, where the method includes: obtaining, by a beamformer, channel feedback information, where the channel feedback information includes: channel information related to the beamformer and channel information related to other beamformer; the channel information includes: channel information fed back by a beamformee in a same basic service set and channel information fed back by a beamformee in a different basic service set. Channel feedback of multiple sending ends is achieved in the present disclosure.
Claims15
A method for channel information feedback, comprising:
- sending, by a first beamformer, a first channel measuring frame to a first beamformee and a second beamformee;
- sending, by the first beamformer, order indicating information, so that the second beamformer sends a second channel measuring frame used for obtaining channel information according to an order specified by the order indicating information, wherein the first beamformer is a primary beamformer, the order indicating information indicates that the second beamformer starts sending the second channel measuring frame after a previous beamformer completes an execution of sending a channel measuring frame;
- and
- receiving, by the first beamformer, first channel feedback information from the first beamformee, and second channel feedback information from the second beamformee,
- wherein the first channel feedback information is obtained by the first beamformee performing channel estimation according to the first channel measuring frame and the second channel measuring frame, and the first channel feedback information comprises:
- channel information related to the first beamformer and channel information related to the second beamformer, the second channel feedback information is obtained by the second beamformee performing channel estimation according to the first channel measuring frame and the second channel measuring frame, and the second channel feedback information comprises:
- channel information related to the first beamformer and channel information related to the second beamformer.
4 more elements
A method for channel information feedback, comprising:
- receiving, by a first beamformee, a first channel measuring frame sent by a first beamformer;
- sending, by the first beamformee, order indicating information to a second beamformer, wherein the second beamformer sends a second channel measuring frame according to an order specified by the order indicating information, the order indicating information indicates that the second beamformer is to start sending the second channel measuring frame after a previous beamformer completes an execution of sending a channel measuring frame;
- receiving, by the first beamformee, the second channel measuring frame sent by the second beamformer, wherein the first beamformee is associated with the first beamformer to form a first basic service set, and a second beamformee is associated with the second beamformer to form a second basic service set;
- performing, by the first beamformee, channel estimation to obtain first channel feedback information according to the first channel measuring frame and the second channel measuring frame;
- and
- sending, by the first beamformee, the first channel feedback information to the first beamformer, wherein the first channel feedback information comprises:
- channel information related to the first beamformer in the first basic service set and channel information related to the second beamformer in the second basic service set.
4 more elements
A beamformer, comprising:
- a processor;
- and
- a non-transitory computer-readable storage medium comprising computer-executable instructions that, when executed by the processor, facilitate executing a method comprising the steps:
- sending a first channel measuring frame to a first beamformee and a second beamformee;
- sending, by the first beamformer, order indicating information, so that the second beamformer sends a second channel measuring frame used for obtaining channel information according to an order specified by the order indicating information, wherein the first beamformer is a primary beamformer, the order indicating information indicates that the second beamformer starts sending the second channel measuring frame after a previous beamformer completes an execution of sending a channel measuring frame;
- and
- receiving first channel feedback information from the first beamformee, and second channel feedback information from the second beamformee, wherein the first channel feedback information is obtained by the first beamformee performing channel estimation according to the first channel measuring frame and the second channel measuring frame, and the first channel feedback information comprises:
- channel information related to the beamformer and channel information related to the second beamformer, the second channel feedback information is obtained by the second beamformee performing channel estimation according to the first channel measuring frame and the second channel measuring frame, and the second channel feedback information comprises:
- channel information related to the beamformer and channel information related to the second beamformer.
6 more elements
A beamformee, comprising:
- a processor;
- and
- a non-transitory computer-readable storage medium comprising computer-executable instructions that, when executed by the electronic processor hardware, facilitate executing a method comprising the steps:
- receiving a first channel measuring frame sent by a first beamformer;
- sending order indicating information to a second beamformer, wherein the second beamformer sends a second channel measuring frame according to an order specified by the order indicating information, the order indicating information indicates that the second beamformer is to start sending the second channel measuring frame after a previous beamformer completes an execution of sending a channel measuring frame;
- receiving the second channel measuring frame sent by the second beamformer, wherein the beamformee is associated with the first beamformer to form a first basic service set, and a second beamformee is associated with the second beamformer to form a second basic service set;
- performing channel estimation to obtain first channel feedback information according to the first channel measuring frame and the second channel measuring frame;
- and
- sending the first channel feedback information to the first beamformer, wherein the first channel feedback information comprises:
- channel information related to the first beamformer in the first basic service set and channel information related to the second beamformer in the second basic service set.
7 more elements
Dependencies are inferred from the claim text.