Data transmission method and apparatus
First Claim
1. A data transmission method, comprising:
- receiving, by a third site, a first transmit frame transmitted by a first site to a second site, and acquiring a transmission end time of the first transmit frame;
transmitting, by the third site, a second transmit frame to a fourth site, and instructing the fourth site to delay returning a response frame; and
receiving, by the third site after at least one preset time length after transmission of the second transmit frame ends, the response frame transmitted by the fourth site;
wherein the third site is within a coverage area of the first site, and the second site is outside a coverage area of the third site;
a transmission end time of the second transmit frame is not later than the transmission end time of the first transmit frame, and the preset time length is greater than or equal to a difference between the transmission end time of the first transmit frame and the transmission end time of the second transmit frame.
1 Assignment
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Accused Products
Abstract
Embodiments of the present invention provide a data transmission method and apparatus. The data transmission method includes: receiving, by a third site, a first transmit frame transmitted by a first site to a second site, and acquiring a transmission end moment of the first transmit frame; transmitting, by the third site, a second transmit frame to a fourth site, and instructing the fourth site to delay returning a response frame; and receiving, by the third site after at least one preset time length after transmission of the second transmit frame ends, the response frame transmitted by the fourth site; where a transmission end moment of the second transmit frame is not later than the transmission end moment of the first transmit frame. The embodiments of the present invention implement that the third site can also transmit data when the first site transmits data, which improves system transmission efficiency.
7 Citations
16 Claims
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1. A data transmission method, comprising:
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receiving, by a third site, a first transmit frame transmitted by a first site to a second site, and acquiring a transmission end time of the first transmit frame; transmitting, by the third site, a second transmit frame to a fourth site, and instructing the fourth site to delay returning a response frame; and receiving, by the third site after at least one preset time length after transmission of the second transmit frame ends, the response frame transmitted by the fourth site; wherein the third site is within a coverage area of the first site, and the second site is outside a coverage area of the third site;
a transmission end time of the second transmit frame is not later than the transmission end time of the first transmit frame, and the preset time length is greater than or equal to a difference between the transmission end time of the first transmit frame and the transmission end time of the second transmit frame. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A data transmission method, comprising:
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receiving, by a fourth site, a second transmit frame and indication information that are transmitted by a third site, wherein the indication information instructs the fourth site to delay returning a response frame, and a transmission end time of the second transmit frame is not later than a transmission end time of a first transmit frame transmitted by a first site to a second site; and transmitting, by the fourth site, the response frame to the third site according to the indication information after at least one preset time length after receiving of the second transmit frame ends; wherein the third site is within a coverage area of the first site, and the second site is outside a coverage area of the third site;
the preset time length is greater than or equal to a difference between the transmission end time of the first transmit frame and the transmission end time of the second transmit frame. - View Dependent Claims (8)
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9. A site, wherein the site is a third site and the site comprises:
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a receiver configured to;
receive a first transmit frame transmitted by a first site to a second site, and acquire a transmission end time of the first transmit frame;a transmitter configured to;
transmit a second transmit frame to a fourth site, and instruct the fourth site to delay returning a response frame; andthe receiver is further configured to receive, after at least one preset time length after transmission of the second transmit frame ends, the response frame transmitted by the fourth site; wherein the third site is within a coverage area of the first site, and the second site is outside a coverage area of the third site;
a transmission end time of the second transmit frame is not later than the transmission end time of the first transmit frame, and the preset time length is greater than or equal to a difference between the transmission end time of the first transmit frame and the transmission end time of the second transmit frame. - View Dependent Claims (10, 11, 12, 13, 14)
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15. A site, wherein the site is a fourth site and the site comprises:
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a receiver configured to receive a second transmit frame and indication information that are transmitted by a third site, wherein the indication information instructs the fourth site to delay returning a response frame, and a transmission end time of the second transmit frame is not later than a transmission end time of a first transmit frame transmitted by a first site to a second site; and a transmitter configured to transmit the response frame to the third site according to the indication information after at least one preset time length after receiving of the second transmit frame ends; wherein the third site is within a coverage area of the first site, and the second site is outside a coverage area of the third site;
the preset time length is greater than or equal to a difference between the transmission end time of the first transmit frame and the transmission end time of the second transmit frame. - View Dependent Claims (16)
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Specification