The present invention discloses a method, device, and system for transmitting channel information, pertaining to the field of radio communication. The method for obtaining channel information includes: transmitting, by a beamformer, a request for obtaining channel information to a beamformee within
The present invention discloses a method, device, and system for transmitting channel information, pertaining to the field of radio communication. The method for obtaining channel information includes: transmitting, by a beamformer, a request for obtaining channel information to a beamformee within the duration of a current first TXOP; receiving a null feedback frame transmitted by the beamformee within the duration of the current first TXOP; within the validity period of the channel information, if the beamformer obtains a second TXOP, transmitting, within the second TXOP, a channel information indication frame to request the channel information, and receiving the channel information transmitted by the beamformee. The system includes a beamformer and a beamformee. The present invention saves the signaling resources of the beamformer and reduces the power consumption of the beamformee.
대표청구항▼
1. A method for obtaining channel information, comprising: transmitting, by a beamformer, a request for obtaining the channel information to a beamformee within a duration of a current first transmission opportunity (TXOP);when the beamformer determines that the duration of the current first TXOP is
1. A method for obtaining channel information, comprising: transmitting, by a beamformer, a request for obtaining the channel information to a beamformee within a duration of a current first transmission opportunity (TXOP);when the beamformer determines that the duration of the current first TXOP is insufficient for receiving the channel information, and the beamformer obtains a second TXOP within a validity period of the channel information, transmitting, by the beamformer, a channel information indication frame to the beamformee to request the channel information within a duration of the second TXOP, andreceiving, by the beamformer, the channel information transmitted by the beamformee. 2. The method according to claim 1, wherein the channel information indication frame comprises an indication information element identifying the channel information. 3. The method according to claim 1, further comprising: transmitting, by the beamformer, management signaling to the beamformee, wherein the management signaling comprises an indication information element indicating that the beamformer has a capability of receiving the currently requested channel information within a subsequent TXOP. 4. A method for transmitting channel information, comprising: receiving, by a beamformee, a request for obtaining the channel information, wherein the request is transmitted by a beamformer within a duration of a current first transmission opportunity (TXOP);performing, by the beamformee, channel estimation to obtain the channel information;when the beamformer determines that the duration of the current first TXOP is insufficient for receiving the channel information, and the beamformer obtains a second TXOP within a validity period of the channel information, receiving, by the beamformee, a channel information indication frame transmitted by the beamformer within a duration of the second TXOP; andtransmitting, by the beamformee, the channel information to the beamformer. 5. The method according to claim 4, wherein the channel information and data information are together transmitted to the beamformer. 6. The method according to claim 4, wherein after the beamformee transmits the channel information, the method further comprises: receiving, by the beamformee, an acknowledgment (ACK) frame or a block acknowledgment (BA) frame returned by the beamformer. 7. The method according to claim 4, further comprising: transmitting, by the beamformee, management signaling to the beamformer, wherein the management signaling comprises an indication information element indicating that the beamformee has a capability of storing and transmitting the channel information currently requested by the beamformer within a subsequent TXOP. 8. A beamformer, comprising a transmitting module and a receiving module, wherein: the transmitting module is configured to transmit a request for obtaining channel information to a beamformee within a duration of a current first transmission opportunity (TXOP); when the beamformer determines that the duration of the current first TXOP is insufficient for receiving the channel information, and the beamformer obtains a second TXOP within a validity period of the channel information, transmit a channel information indication frame to the beamformee to request the channel information within a duration of the second TXOP; andthe receiving module is configured to receive the channel information transmitted by the beamformee. 9. The beamformer according to claim 8, wherein: the transmitting module is further configured to transmit management signaling to the beamformee, wherein the management signaling comprises an indication information element indicating that the beamformer has a capability of receiving the currently requested channel information within a subsequent TXOP. 10. A beamformee, comprising: a receiving module, configured to receive a request for obtaining channel information, wherein the request is transmitted by a beamformer within a duration of a current first transmission opportunity (TXOP);a channel estimation module, configured to perform channel estimation to obtain the channel information;when the beamformer determines that the duration of the current first TXOP is insufficient for receiving the channel information, and the beamformer obtains a second TXOP within a validity period of the channel information, the receiving module is further configured to receive a channel information indication frame transmitted by the beamformer within a duration of the second TXOP; anda transmitting module, configured to transmit the channel information to the beamformer. 11. The beamformee according to claim 10, wherein the transmitting module is configured to transmit the channel information and data information to the beamformer together. 12. The beamformee according to claim 10, wherein the receiving module is further configured to receive an acknowledgment (ACK) frame or a block acknowledgment (BA) frame returned by the beamformer. 13. The beamformee according to claim 10, wherein the transmitting module is further configured to transmit management signaling to the beamformer, wherein the management signaling comprises an indication information element indicating that the beamformee has a capability of storing and transmitting the channel information currently requested by the beamformer within a subsequent TXOP.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (4)
Utsunomiya,Yoriko; Takagi,Masahiro, Communication method, communication apparatus, and communication system.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.