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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 can be applied to devices dedicated to receivers, transmission modification based on link quality, digital transmission systems, etc. Effect

Active Publication Date: 2018-06-05
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 flow chart of a first signaling transmission according to the present invention, as shown in the appendix. figure 1 shown. attached figure 1 Among them, the base station N1 is the maintenance base station of the serving cell of the UE U2. The steps identified by block F0 to block 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 , the second signaling is received in step S20, the third signaling is received in step S21, the fourth signaling is received in step S22, the first signaling is monitored in the first time-frequency resource pool in step S23, and the In step S24, the first wireless signal is received.

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

Embodiment 2

[0232] Embodiment 2 illustrates another flow chart of the first signaling transmission according to the present invention, as shown in the appendix. figure 2 shown. attached figure 2 Among them, the base station N3 is the maintenance base station of the serving cell of the UE U4. The steps identified by blocks 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 , the second signaling is received in step S40, the third signaling is received in step S41, the fourth signaling is received in step S42, the first signaling is monitored in the first time-frequency resource pool in step S43, and the In step S44, the first wireless signal is sent.

[0235] As a sub-embodiment, the first sign...

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). where 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 the 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 th...

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Abstract

The invention discloses a method and device in UE and a base station for dynamic scheduling. The UE monitors first signaling in a first time-frequency resource pool. The first time-frequency resourcepool occupies N time windows in the time domain. The N time windows are in one-to-one correspondence with N antenna port groups. The first signaling is physical layer signaling. At most X detections are performed for the first signaling, and the X detections are respectively for X RE sets. The X RE sets at least comprises one of {a first type of RE sets, a second type of RE sets}. The classification of the RE set is related to the number of REs contained in the RE set and the time window occupied by the RE set. The first type of RE sets and the second type of RE sets are designed, and the classification of the RE set is related to the transmission mode and the number of occupied REs to improve the robustness of the first signaling transmission and reduce the blind decoding complexity, which in turn improves the overall spectrum efficiency and performance of the system.

Description

technical field [0001] The present invention relates to a transmission method and apparatus in a wireless communication system, and in particular, to a transmission scheme and apparatus 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 are beamformed to form narrow beams pointing in a specific direction to improve communication quality. Both the data channel and the control channel can improve transmission quality through multi-antenna beamforming. [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 RAN1 (Radio Access...

Claims

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Application Information

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IPC IPC(8): H04W72/04H04L1/00
CPCH04L1/0027H04L1/0038H04W72/23
Inventor 蒋琦
Owner SHANGHAI LANGBO COMM TECH CO LTD
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