CN-121985416-A - Data transmission method and structure of uplink and downlink asymmetric frames

CN121985416ACN 121985416 ACN121985416 ACN 121985416ACN-121985416-A

Abstract

The invention discloses a data transmission method and structure of uplink and downlink asymmetric frames, which comprises the steps of setting a plurality of frame structure groups which are sequentially arranged, wherein each frame structure group comprises a downlink group and an uplink group, each downlink group is positioned at the first position in each frame structure group, each downlink group and each uplink group comprises a plurality of subframes, when external equipment initiates a data transmission request, a local terminal equipment distributes each subframe in the uplink group to different external equipment, each subframe in the uplink group is used as an input subframe of the corresponding external equipment to receive data sent by the corresponding external equipment, after the data of the external equipment is received, the data is transmitted and processed in other subframes in the downlink groups of the other frame structure groups, the subframes in the other frame structure groups are transmitted to other equipment, the uplink groups are formed through the subframes, and the different subframes are used for corresponding to the different external equipment to receive the data, so that the data are prevented from being simultaneously transmitted to the local terminal equipment and the data transmission efficiency is improved.

Inventors

WANG JINGPING
WANG ZHENG
LI GUANGJIE

Assignees

重庆御芯微信息技术有限公司

Dates

Publication Date: 20260505
Application Date: 20260109

Claims (10)

1. The data transmission method of the uplink and downlink asymmetric frames is characterized by comprising the following steps of: Setting a plurality of frame structure groups which are sequentially arranged, wherein a single frame structure group comprises a downlink group and an uplink group, the downlink group in each frame structure group is positioned at the first position, the downlink group comprises a plurality of subframes, and the uplink group comprises a plurality of subframes; When external equipment initiates a data transmission request to local equipment, the local equipment respectively distributes each subframe in the uplink group to different external equipment, takes each subframe in the uplink group as an input subframe of the corresponding external equipment, and receives data sent by the corresponding external equipment; When data of external equipment is received through the input subframe, the data is transmitted and processed in the subsequent other subframes of the input subframe, and the data is output from the subframes in the downlink group of the subsequent other frame structure group and is transmitted to other equipment.
2. The method for transmitting data of uplink and downlink asymmetric frames according to claim 1, wherein the downlink group includes a first preset number of subframes, the uplink group includes a second preset number of subframes, and the first preset number is smaller than the second preset number.
3. The method for transmitting data of uplink and downlink asymmetric frames according to claim 1, wherein the data is transmitted and processed in a subsequent other subframe of the input subframe, and is output from a subframe in a downlink group of the subsequent other frame structure group, specifically comprising: the data is continuously transmitted along the subsequent other subframes of the input subframe until the local terminal equipment initiates a data transmission application to other equipment; When the local terminal equipment initiates a data transmission application to other equipment, an output subframe is set according to the subframe position where the data is located, and the data is output to the other equipment from the output subframe.
4. The method for transmitting data of uplink and downlink asymmetric frames according to claim 3, wherein when the local device initiates a data transmission application to other devices, setting an output subframe according to a subframe position where the data is located, specifically comprising: When the local terminal equipment initiates a data transmission application to other equipment, judging whether the position of the data is positioned in a downlink group or not; when the position of the data is in the downlink group, taking the subframe where the data is currently positioned as an output subframe; And when the data is positioned outside the downlink group, taking the first subframe in the downlink group closest to the subframe where the data is currently positioned as the output subframe along the data transmission direction.
5. The method for transmitting data of uplink and downlink asymmetric frames according to claim 1, wherein when the external device initiates a data transmission request to the local device, the local device allocates each subframe in the uplink group to a different external device, and uses each subframe in the uplink group as an input subframe of the corresponding external device, and specifically includes: the external equipment initiates a transmission request to the local equipment; the method comprises the steps that local terminal equipment judges whether subframes in a current uplink group exist unassigned subframes or not; if the uplink group exists, the local terminal equipment randomly allocates one subframe in all unassigned subframes of all uplink groups to serve as an input subframe and corresponds to the external equipment; If not, repeating the judgment of whether the unallocated sub-frame exists in the sub-frame in the current uplink group until the unallocated sub-frame appears in the uplink group or until the external device stops initiating the transmission request to the local terminal device.
6. An uplink and downlink asymmetric frame structure for a data transmission method using the uplink and downlink asymmetric frame according to any one of claims 1 to 5, comprising a plurality of frame structure groups arranged in sequence, wherein: The single frame structure group comprises a downlink group and an uplink group, wherein the downlink group in each frame structure group is positioned at the first position, the downlink group comprises a plurality of subframes, and the uplink group comprises a plurality of subframes; when external equipment initiates a data transmission request to local equipment, each subframe in the uplink group is used for being distributed to different external equipment and used as an input subframe of the corresponding external equipment, and the input subframe is used for receiving data sent by the corresponding external equipment; The data is transmitted and processed in the subsequent other subframes of the input subframe, output from the subframes in the downlink group of the subsequent other frame structure group, and transmitted to other devices.
7. The upstream and downstream asymmetric frame structure as claimed in claim 6, wherein the frame length of the single frame structure group is 73392 + -5 μs, 106160 + -5 μs or 138928 + -5 μs.
8. The upstream-downstream asymmetric frame structure as claimed in claim 6, wherein a subframes are included in the downstream group, and a×b subframes are included in the upstream group; Wherein b is an integer of 2 or more.
9. The upstream and downstream asymmetric frame structure according to claim 6, wherein the frame structure group further includes a preamble, and the preamble is located at a front end position of the downstream group.
10. The upstream and downstream asymmetric frame structure of claim 9, wherein the frame structure groups further comprise a switch time slot, the switch time slot being located between the preamble and downstream groups, between downstream groups and upstream groups, and between different frame structure groups.

Description

Data transmission method and structure of uplink and downlink asymmetric frames Technical Field The invention belongs to the technical field of communication, and particularly relates to a data transmission method and structure of uplink and downlink asymmetric frames. Background With the development of internet of things and narrowband wireless communication technology, low power consumption, long distance and low delay voice communication demands are increasing. The conventional voice communication system mostly adopts an independent channel to be in butt joint with external equipment for data transmission, but the problem is that the independent channel can only correspond to one external equipment and receive data at the same time, and other external equipment also needs to transmit data to local equipment if the independent channel is occupied at the moment, so that the independent channel can collide with the external equipment currently transmitting, one-to-many data reception is difficult to realize, and the limitation exists, so that the high-efficiency communication requirement is difficult to meet. In view of this, overcoming the drawbacks of the prior art is a problem to be solved in the art. Disclosure of Invention The invention aims to solve the problem of how to enable the local terminal equipment to be simultaneously in butt joint with a plurality of external equipment to receive data and improve the communication efficiency in narrow-band wireless communication. In a first aspect, a data transmission method for uplink and downlink asymmetric frames is provided, including: Setting a plurality of frame structure groups which are sequentially arranged, wherein a single frame structure group comprises a downlink group and an uplink group, the downlink group in each frame structure group is positioned at the first position, the downlink group comprises a plurality of subframes, and the uplink group comprises a plurality of subframes; When external equipment initiates a data transmission request to local equipment, the local equipment respectively distributes each subframe in the uplink group to different external equipment, takes each subframe in the uplink group as an input subframe of the corresponding external equipment, and receives data sent by the corresponding external equipment; When data of external equipment is received through the input subframe, the data is transmitted and processed in the subsequent other subframes of the input subframe, and the data is output from the subframes in the downlink group of the subsequent other frame structure group and is transmitted to other equipment. Preferably, the downlink group includes a first preset number of subframes, and the uplink group includes a second preset number of subframes, where the first preset number is smaller than the second preset number. Preferably, the data is transmitted and processed in a subsequent other subframe of the input subframe, and is output from a subframe in a downlink group of the subsequent other frame structure group, and specifically includes: the data is continuously transmitted along the subsequent other subframes of the input subframe until the local terminal equipment initiates a data transmission application to other equipment; When the local terminal equipment initiates a data transmission application to other equipment, an output subframe is set according to the subframe position where the data is located, and the data is output to the other equipment from the output subframe. Preferably, when the local device initiates a data transmission application to other devices, the setting of the output subframe according to the subframe position where the data is located specifically includes: When the local terminal equipment initiates a data transmission application to other equipment, judging whether the position of the data is positioned in a downlink group or not; when the position of the data is in the downlink group, taking the subframe where the data is currently positioned as an output subframe; And when the data is positioned outside the downlink group, taking the first subframe in the downlink group closest to the subframe where the data is currently positioned as the output subframe along the data transmission direction. Preferably, when the external device initiates a data transmission request to the local device, the local device allocates each subframe in the uplink group to a different external device, and uses each subframe in the uplink group as an input subframe of the corresponding external device, which specifically includes: the external equipment initiates a transmission request to the local equipment; the method comprises the steps that local terminal equipment judges whether subframes in a current uplink group exist unassigned subframes or not; if the uplink group exists, the local terminal equipment randomly allocates one subframe in all unassigned subframes of all uplink groups to s