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A scheduling method and device in a mobile communication system

A technology of comprehensive information and one-to-one correspondence, which is applied in the field of scheduling and devices in mobile communication systems, and can solve problems such as incomplete DAI information

Active Publication Date: 2019-05-31
SHANGHAI LANGBO COMM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The inventors have found that in actual transmission, the uplink subframe scheduling used to indicate frame structure #0 does not need to fully use these 256 states. There are two methods to solve the ULI / DAI conflict problem. One method can be flexible Determine whether the ULI / DAI bit on each subframe (hereinafter referred to as the index indication bit) is used to indicate ULI or DAI. For the incomplete DAI information brought by the indication ULI, the method of reserving the maximum number of ACK / NACK bits is adopted Compensation, that is, assuming that the DAI value indicates that the PDSCH is sent in the downlink subframes that can be indicated by the ACK / NACK; another method is that for each frame, part of the 4 states of the index indication bit indicates ULI, and the other A part indicates DAI

Method used

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  • A scheduling method and device in a mobile communication system
  • A scheduling method and device in a mobile communication system
  • A scheduling method and device in a mobile communication system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0118] Embodiment 1 describes the flow of the method used in the user equipment. In step C31, the user equipment determines the index indication properties C1, C2, and C3 of subframe n, and different subframes may have different index indication properties, or may have the same index indication properties; in step C32, the user equipment according to Receive the user uplink scheduling DCI sent by subframe n; in step C33, the user equipment interprets the index indication bit information according to the index indication property of subframe n, which is DAI, ULI or both DAI and ULI; in step C34, the user equipment The device responds on the corresponding uplink subframe according to the interpreted index indication bit information. Different index indication information adopts different response methods: if the index indication bit is ULI, the user equipment responds in the uplink subframe indicated by it; if the index indication bit is DAI, the user equipment responds accordin...

Embodiment 2

[0120] Embodiment 2 is a processing device in UE, which includes a judging module 201, a receiving module 202, an interpreting module 203 and a sending module 204, as shown in the attached figure 2 The processing device 200 in is shown. The sending module 204 is an optional module, marked with a dotted line.

[0121] Judgment module 201: used to determine whether the index indicating property C1, C2 or C3 of the downlink subframe n;

[0122] Receiving module 202: used to receive DCI including index indication bits in the downlink subframe n

[0123] Interpretation module 203: for interpreting index indication bits, if the index indication property of the downlink subframe n is C1 (for example, n is 0 or 5), interpret the two index indication bits to obtain DAI; if the downlink subframe n The nature of the index indication is C3 (for example, n is 1 or 6), interpreting one index indication bit to obtain part of the DAI information, and interpreting the other index indication...

Embodiment 3

[0126] Embodiment 3 is a processing device in a base station device, which includes a judging module 301, a setting module 302, a sending module 303 and a receiving module 304, as shown in the attached image 3 The processing device 300 in is shown. The receiving module 304 is an optional module, marked with a dotted line.

[0127] Judgment module 301: used to determine whether the index indicating property C1 or C2 of the downlink subframe n;

[0128] Setting module 302: used to set the index indication bit, if the index indication property of the downlink subframe n is C1 (for example, n is 0 or 5), map the DAI information into 2 bits as the index indication bit; if the downlink The index indication property of subframe n is C2 (for example, n is 1 or 6), and ULI information is mapped to 2 bits as index indication bits

[0129] Sending module 303: for sending the DCI including the index indication bit in the downlink subframe n

[0130] Receiving module 304: used to recei...

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Abstract

Provided in the present invention is a method for uplink subframe scheduling in a time-division duplex (TDD) mobile communication system. In one embodiment, the method comprises: receiving downlink control information (DCI) for scheduling an uplink subframe, where a 2-bit index indication that the DCI comprises may be used in a downlink subframe of TDD-LTE frame structure #0 either for indicating a downlink assignment index (DAI) or for indicating an uplink index, and may be used for indicating simultaneously ULI and DAI information. By using the technical solution provided in the present invention, solved is the problem of a conflict of ULI and DAI bits in uplink scheduling when either a hopping frame structure in an enhanced interference Management and Traffic Adaptation (eIMTA) scenario comprises frame structure #0 or a reference uplink frame structure is frame structure #0, while at the same time, compatibility with existing systems is maintained to the greatest extent.

Description

technical field [0001] The present invention relates to a scheme for scheduling subframes in the technical field of mobile communication, in particular to TDD (Time Division Duplex, Time Division Duplex) LTE (Long Term Evolusion (Long Term Evolution) system is a downlink control signaling scheme for scheduling uplink and downlink subframes. Background technique [0002] 3GPP (3rd Generation Partner Project) defines the frame structure of the TDD-LTE system as follows, where D represents the downlink subframe, U represents the uplink subframe, and S represents the special subframe: [0003] Table 1: TDD LTE frame structure [0004] [0005] 3GPP further defines the parameter k of uplink subframe scheduling across subframes, as shown in Table 2. The meaning of k is: the DCI (Downlink Control Indicator, downlink control indication) used for uplink scheduling in the downlink subframe n, and the scheduled subframe is located in the n+k subframe. It should be noted that for ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/12H04L1/18
CPCH04W72/12
Inventor 马莉
Owner SHANGHAI LANGBO COMM TECH CO LTD