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Method and device in UE and base station for dynamic scheduling

A technology of dynamic scheduling and one-to-one correspondence, which is applied to devices dedicated to receivers, transmission modification based on link quality, digital transmission systems, etc., can solve the problems of complex implementation and high complexity, and achieve the goal of improving robustness Effect

Active Publication Date: 2019-12-24
SHANGHAI LANGBO COMM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Another implementation method is that the UE blindly detects the control signaling within the time window corresponding to all beamforming vectors, which will bring more complexity and more complicated implementation

Method used

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  • Method and device in UE and base station for dynamic scheduling
  • Method and device in UE and base station for dynamic scheduling
  • Method and device in UE and base station for dynamic scheduling

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0226] Embodiment 1 illustrates a flowchart of a first signaling transmission according to the present invention, as shown in the attached figure 1 shown. attached figure 1 In , the base station N1 is the maintenance base station of the serving cell of the UE U2. The steps identified in boxes F0 to F2 are optional.

[0227] for base station N1 , the second signaling is sent in step S10, the third signaling is sent in step S11, the fourth signaling is sent in step S12, the first signaling is sent in the first time-frequency resource pool in step S13, and the In step S14, the first wireless signal is sent.

[0228] for UE U2 , receiving the second signaling in step S20, receiving the third signaling in step S21, receiving the fourth signaling in step S22, monitoring the first signaling in the first time-frequency resource pool in step S23, and In step S24, the first wireless signal is received.

[0229] As a sub-embodiment, the first signaling is a downlink grant.

[0...

Embodiment 2

[0232] Embodiment 2 illustrates another flow chart of the first signaling transmission according to the present invention, as shown in the attached figure 2 shown. attached figure 2 In , the base station N3 is the maintenance base station of the serving cell of the UE U4. The steps identified in boxes F3 to F5 are optional.

[0233] for base station N3 , the second signaling is sent in step S30, the third signaling is sent in step S31, the fourth signaling is sent in step S32, the first signaling is sent in the first time-frequency resource pool in step S33, and the In step S34, the first wireless signal is received.

[0234] for UE U4 , receiving the second signaling in step S40, receiving the third signaling in step S41, receiving the fourth signaling in step S42, monitoring the first signaling in the first time-frequency resource pool in step S43, and In step S44, the first wireless signal is sent.

[0235] As a sub-embodiment, the first signaling is an uplink gr...

Embodiment 3

[0238] Embodiment 3 illustrates a schematic diagram of N time windows. as attached image 3 As shown, the N time windows are in one-to-one correspondence with the N antenna port groups. Time window #0 corresponds to antenna port group #0, time window #k corresponds to antenna port group #k, and time window #(N-1) corresponds to antenna port group #(N-1). Wherein, k is a positive integer greater than 0 and less than (N-1).

[0239] As a sub-embodiment, the number of antenna ports included in different antenna port groups is the same.

[0240] As a sub-embodiment, at least two different antenna port groups include different numbers of antenna ports.

[0241]As a sub-embodiment, the antenna port is formed by stacking multiple antennas through antenna virtualization, and mapping coefficients from the multiple antennas to the antenna port form a beamforming vector.

[0242] As a sub-embodiment, the number of multi-carrier symbols occupied by any one of the N time windows is the...

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Abstract

The invention discloses a method and equipment for dynamic scheduling in UE and base station. The UE monitors the first signaling in the first time-frequency resource pool. The first time-frequency resource pool occupies N time windows in the time domain. The N time windows are in one-to-one correspondence with the N antenna port groups. The first signaling is physical layer signaling. A maximum of X detections are performed on the first signaling, and the X detections are respectively for X sets of REs. The X RE sets include at least one of {the first type of RE set, the second type of RE set}. The classification of the RE set is related to the number of REs included in the RE set and the time window occupied by the RE set. The present invention improves the robustness of the first signaling transmission and reduces blind decoding by designing the first type of RE set and the second type of RE set, and associating the classification of the RE set with the transmission mode and the number of occupied REs. complexity, thereby improving the overall spectrum efficiency and performance of the system.

Description

technical field [0001] The present invention relates to a transmission method and device in a wireless communication system, in particular to a transmission scheme and device used for dynamic scheduling. Background technique [0002] Massive MIMO (Multiple Input Multiple Output, Multiple Input Multiple Output) has become a research hotspot in the next generation of mobile communications. In large-scale MIMO, multiple antennas use beamforming to form narrower beams pointing in a specific direction to improve communication quality. Both data channels and control channels can be multi-antenna beamforming to improve transmission quality. [0003] In traditional LTE (Long Term Evolution, long-term evolution) and LTE-A (Long Term Evolution Advanced, enhanced long-term evolution) systems, the physical layer control channel corresponding to DCI (Downlink Control Information) is sent in a non-beamforming manner of. According to the discussion of 3GPP (3rd Generation Partner Projec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/04H04L1/00
CPCH04L1/0027H04L1/0038H04W72/23
Inventor 蒋琦
Owner SHANGHAI LANGBO COMM TECH CO LTD
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