Resource scheduling indication method and device

Abstract

The invention provides a resource scheduling indication method and device. The method comprises the following steps: generating resource allocation indication information; and sending a wireless frame containing the resource allocation indication information to a receiver, wherein the resource allocation indication information comprises the resource allocation indication information of N STA; the resource allocation indication information of each STA comprises number indication information and position indication information of resource blocks used by the STA, the bit number occupied by the number indication information of the resource blocks used by the nth STA is (the formula is as shown in the specification), and Rn represents the number of unallocated resource blocks; the bit number occupied by the position indication information of the resource blocks used by the nth STA is equal to the maximum serial number in the serial numbers allocated to the resource blocks of the nth STA and is indicated in a bitmap mode; and the serial numbers of the resource blocks are serial numbers from 1 to Rn of the Rn unallocated resource blocks. By adopting the resource scheduling indication method and device provided by the invention, the bit number for indicating the resource scheduling conditions can be reduced.

Description

technical field [0001] The present invention relates to the communication field, in particular to a method and device for indicating resource scheduling. Background technique [0002] At present, in the field of wireless networks, WLAN (Wireless Local Area Network) is developing rapidly. The IEEE 802.11 group of the Institute of Electrical and Electronics Engineers has defined a series of standards such as IEEE 802.11a / b / g / n / ac to meet the growing communication These standards are mostly dedicated to improving 802.11 technology to increase the maximum physical layer transmission rate or the maximum throughput of the network. For example, the 802.11ac technology can achieve a data rate of more than 1 Gbps by introducing technologies such as larger channel bandwidth and higher order MIMO (Multiple Input Multiple Output). However, as the network density increases and the number of users increases, the efficiency of the WLAN network will show an obvious downward trend, and the ...

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Problems solved by technology

[0006] In WLAN, the indication information usually uses a fixed number of bits and adopts the bitmap bitmap method. If the resource indication still adopts this mode in the 802.11ax standard, the number of bits occupied will be very large, especially in the channel When the bandwidth is greater than 20MHz and the number of STAs (sites) is large; for example, each 20MHz channel bandwidth is divided into 9 schedulable small bandwidths, and there are 36 schedulable independent small bandwidths under the 80MHz channel bandwidth. If a simple bitmap is used Mode means that each resource block occupies one bit. If there are 4 STAs, each STA will use 36 bits, a total of 144 bits. In order to improve the reliability of scheduling and other control information transmission in WLAN, a lower rate is usually used. The MCS (Modulation and Coding Scheme, Modulation and Coding Strategy) is used for transmission, which increases the ratio of the transmission time occupied by the indication information to the data transmission time, thereby reducing the transmission efficiency.

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