A method for scheduling air interface resources

Abstract

The present invention relates to an air interface resource scheduling method, comprising the following steps: sending public downlink control information to a user equipment through a physical downlink control channel; the public downlink control information carries frequency domain scheduling information of the entire cell, and the frequency domain scheduling information is represented by the RBG granularity of the system bandwidth. The present invention carries the frequency domain scheduling information on the public DCI of the PDCCH of 5G NR, so that a non-destination receiving end can obtain the scheduling information of the frequency domain signal of the transmitting end, thereby optimizing the coverage and throughput of the entire cell, and further improving the coverage and throughput of the cell.

Description

Technical Field

[0001] The present invention relates to the field of communication technology, and in particular to an air interface resource scheduling method. Background Art

[0002] In the existing 5G communication protocol, the frequency domain scheduling information of the cell or user is not carried in the downlink control information (DCI) of the physical downlink control channel (PDCCH), so the non-destination receiving end cannot obtain the scheduling information of the frequency domain signal of the transmitting end (gNB or UE). As a result, it is impossible to use this information to optimize the coverage and throughput of the entire cell, affecting the 5G NR system from obtaining greater coverage and throughput. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide an air interface resource scheduling method, which can improve the coverage and throughput of a cell.

[0004] The technical solution adopted by the present invention to solve its technical problem is: to provide an air interface resource scheduling method, comprising the following steps: sending public downlink control information to user equipment through a physical downlink control channel; the public downlink control information carries frequency domain scheduling information of the entire cell, and the frequency domain scheduling information is represented by the RBG granularity of the system bandwidth.

[0005] The frequency domain scheduling information is represented by the RBG granularity of the system bandwidth. Specifically, assuming that the system bandwidth is NRB, ceil(N / k) bits are used to represent the frequency domain scheduling information, ceil() represents rounding up, k represents the size of the RBG, each bit represents the scheduling information of the RBG, "0" represents that the RBG is not scheduled, and "1" represents that the RBG is scheduled.

[0006] The air interface resource scheduling method further includes: after receiving the frequency domain scheduling information, the repeater amplifies the effective frequency domain scheduling signal and sets the invalid frequency band noise to zero.

[0007] The repeater determines whether the scheduling information of the RBG needs to be amplified according to the frequency domain scheduling information. If the scheduling information of the RBG is scheduled, it is amplified; if the scheduling information of the RBG is not scheduled, it is not processed.

[0008] The air interface resource scheduling method further includes: acquiring frequency domain scheduling information of M adjacent cells, and staggering the frequency domain scheduling information of the M adjacent cells to reduce interference to the adjacent cells.

[0009] Beneficial Effects

[0010] Due to the adoption of the above-mentioned technical solution, the present invention has the following advantages and positive effects compared with the prior art: the present invention carries frequency domain scheduling information on the public DCI of the PDCCH of 5G NR, so that the non-destination receiving end can obtain the scheduling information of the frequency domain signal of the transmitting end, thereby optimizing the coverage and throughput of the entire cell, and further improving the coverage and throughput of the cell. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is a schematic diagram of common downlink control information carrying frequency domain scheduling information in this implementation mode;

[0012] Figure 2 is a schematic diagram of a signal after the repeater processes the frequency domain scheduling information in this implementation mode;

[0013] Figure 3 It is a schematic diagram of receiving frequency domain scheduling information of adjacent cells in this implementation mode. DETAILED DESCRIPTION

[0014] The present invention will be further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms fall within the scope limited by the appended claims of the application equally.

[0015] An embodiment of the present invention relates to an air interface resource scheduling method, comprising the following steps: sending public downlink control information to a user equipment via a physical downlink control channel; the public downlink control information carries frequency domain scheduling information of the entire cell, and the frequency domain scheduling information is represented by the RBG granularity of the system bandwidth.

[0016] In this implementation mode, the common DCI of the PDCCH carries the frequency domain scheduling information of the entire cell. For the frequency domain scheduling information, the system bandwidth can be represented according to the RBG (k RB) granularity, such as Figure 1 As shown, assuming that the system bandwidth is N RB, ceil(N / k) bits are used to represent the frequency domain scheduling information, ceil() means rounding up, and each bit represents the scheduling information of the RBG. From low to high, "0" indicates that the RBG is not scheduled, and "1" indicates that the RBG is scheduled.

[0017] It is not difficult to find that the present invention carries frequency domain scheduling information on the public DCI of the PDCCH of 5G NR, so that the non-destination receiving end can obtain the scheduling information of the frequency domain signal of the transmitting end.

[0018] In this implementation, the repeater can obtain frequency domain scheduling information, such as Figure 2As shown, the effective frequency domain scheduling signal is amplified, and the invalid frequency band noise is set to 0. On the one hand, the effective signal can be strengthened and the cell coverage can be enhanced. On the other hand, the noise band can be eliminated to reduce the interference in the cell. The repeater can determine whether the scheduling information of the RBG needs to be amplified based on the frequency domain scheduling information. If the scheduling information of the RBG is scheduled, it is amplified to increase the coverage of the edge user equipment; if the scheduling information of the RBG is not scheduled, it is not processed to avoid interference to other users.

[0019] In this implementation, the adjacent cell can obtain the frequency domain scheduling information of multiple adjacent cells. By staggering the frequency domain scheduling RBs of multiple adjacent cells, the interference to the adjacent cells can be effectively reduced, and the system throughput of multiple adjacent cells can be improved. Figure 3 As shown: Sector 1 and sector 2 avoid scheduling the same RB, which can avoid cell edge user equipment ( Figure 3 UE1 / UE2) is interfered with, improving the overall throughput of adjacent cells.

Claims

1. A method for air interface resource scheduling, characterized in that: The method comprises the following steps: sending common downlink control information to a user equipment through a physical downlink control channel; the common downlink control information carries frequency domain scheduling information of the entire cell, and the frequency domain scheduling information is represented by the RBG granularity of the system bandwidth; wherein the frequency domain scheduling information is represented by the RBG granularity of the system bandwidth as follows: assuming that the system bandwidth is N RB, ceil(N / k) bits are used to represent the frequency domain scheduling information, ceil() represents rounding up, k represents the size of the RBG, each bit represents the scheduling information of the RBG, "0" represents that the RBG is not scheduled, and "1" represents that the RBG is scheduled; After receiving the frequency domain scheduling information, the repeater amplifies the effective frequency domain scheduling signal and sets the invalid frequency band noise to 0; the repeater determines whether the scheduling information of the RBG needs to be amplified according to the frequency domain scheduling information, if the scheduling information of the RBG is scheduled, then amplify it, if the scheduling information of the RBG is not scheduled, then do not process it; Frequency domain scheduling information of M adjacent cells is obtained, and the frequency domain scheduling information of the M adjacent cells is staggered to reduce interference to the adjacent cells.

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