Method and apparatus for delivery of control signaling in a wireless communication system

Patent metadata

Field	Value
Publication number	US-10104658-B2
Application number	US-201615175673-A
Country	US
Kind code	B2
Filing date	Jun 7, 2016
Priority date	Jun 12, 2015
Publication date	Oct 16, 2018
Grant date	Oct 16, 2018

Abstract

A method and apparatus for delivery of control signaling in a wireless communication system are disclosed. In one embodiment, the method includes communicating with a UE (User Equipment) in the cell via downlink and uplink transmissions, wherein the downlink and uplink transmissions are organized into radio frames and each radio frame contains multiple subframes and each subframe contains multiple symbols. The method also includes transmitting, in the cell, a UE specific signal in a first symbol of a downlink control region of a subframe of the multiple subframes, wherein the network node is not allowed to transmit a common signal in the first symbol.

First claim

The invention claimed is:

1. A method for a network node controlling a cell, comprising:
communicating with a UE (User Equipment) in the cell via downlink and uplink transmissions, wherein the downlink and uplink transmissions are organized into radio frames and each radio frame contains multiple subframes and each subframe contains multiple symbols; and
transmitting, in the cell, a UE specific signal to the UE in at least one first symbol of a downlink control region of a subframe of the multiple subframes and a common signal to the UE in at least one second symbol of the downlink control region of the subframe of the multiple subframes, wherein the network node does not transmit the common signal to the UE in the at least one first symbol and wherein the common signal and the UE specific signal indicate resources in different symbols of a data region of the subframe.

2. The method of claim 1 , wherein the network node transmits the common signal at multiple timings to cover all beams of the cell.

3. The method of claim 1 , wherein the network node transmits the UE specific signal in the at least second symbol.

4. The method of claim 1 , wherein the network node does not transmit the UE specific signal in the at least one second symbol.

5. The method of claim 1 , wherein the UE specific signal is a signaling indicating resource allocation, a signaling indicating HARQ (Hybrid Automatic Repeat reQuest) feedback, and/or a reference signal for demodulation.

6. The method of claim 1 , wherein the common signal is a signaling indicating a system frame number (SFN), a signaling indicating resource allocation for a broadcast message, a synchronization signal, or a reference signal for DL radio condition measurement.

7. The method of claim 1 , wherein beam(s) of the cell generated in the first symbol is different from beam(s) generated in the at least one second symbol.

8. The method of claim 1 , wherein the network node transmits, in the cell, the UE specific signal on beam(s) of the cell corresponding to the UE.

9. The method of claim 1 , wherein the network node transmits the common signal on predefined beams at a specific timing.

10. The method of claim 1 , wherein the common signal and the UE specific signal indicate resources in completely different or partially different symbols of the data region of the subframe.

11. A method for a User Equipment (UE), comprising:
communicating with a network node in a cell via downlink and uplink transmissions, wherein the downlink and uplink transmissions are organized into radio frames, each radio frame includes multiple subframes, and each subframe includes multiple symbols;
monitoring, in the cell, a UE specific signal in at least one first symbol of a downlink control region of a subframe, and not monitoring a common signal in the at least one first symbol; and
monitoring, in the cell, the common signal in at least one second symbol of the downlink control region, wherein the common signal and the UE specific signal indicate resources in different symbols of a data region of the subframe.

12. The method of claim 11 , wherein the common signal and the UE specific signal indicate resources in completely different or partially different symbols of the data region of the subframe.

13. The method of claim 11 , wherein the UE monitors the UE specific signal in the second symbol.

14. The method of claim 11 , wherein the UE does not monitor the UE specific signal in the at least one second symbol.

15. The method of claim 11 , wherein the UE specific signal is a signaling indicating resource allocation, a signaling indicating HARQ (Hybrid Automatic Repeat reQuest) feedback, and/or a reference signal for demodulation.

16. The method of claim 11 , wherein the common signal is a signaling indicating a system frame number (SFN), a signaling indicating resource allocation for a broadcast message, a synchronization signal, or a reference signal for DL radio condition measurement.

17. The method of claim 11 , wherein a length of the downlink control region is two symbols and the UE does not monitor the UE specific signal in the at least one second symbol.

18. A User Equipment (UE) for communication with a network node, comprising:
a control circuit;
a processor installed in the control circuit; and
a memory installed in the control circuit and operatively coupled to the processor;
wherein the processor is configured to execute a program code stored in the memory to:
communicate with the network node in a cell via downlink and uplink transmissions, wherein the downlink and uplink transmissions are organized into radio frames, each radio frame includes multiple subframes, and each subframe includes multiple symbols;
monitor, in the cell, a UE specific signal in at least one first symbol of a downlink control region of a subframe, and not monitoring a common signal in the at least one first symbol; and
monitor, in the cell, the common signal in at least one second symbol of the downlink control region, wherein the common signal and the UE specific signal indicate resources in different symbols of a data region of the subframe.

19. The UE of claim 18 , wherein the common signal and the UE specific signal indicate resources in completely different or partially different symbols of the data region of the subframe.

20. The UE of claim 18 , wherein the UE monitors the UE specific signal in the second symbol.

21. The UE of claim 18 , wherein the UE specific signal is a signaling indicating resource allocation, a signaling indicating HARQ (Hybrid Automatic Repeat reQuest) feedback, and/or a reference signal for demodulation.

22. The UE of claim 18 , wherein the common signal is a signaling indicating a system frame number (SFN), a signaling indicating resource allocation for a broadcast message, a synchronization signal, or a reference signal for DL radio condition measurement.

23. The UE of claim 18 , wherein a length of the downlink control region is two symbols and the UE does not monitor the UE specific signal in the at least one second symbol.

24. The UE of claim 18 , wherein the UE does not monitor the UE specific signal in the at least one second symbol.

25. A network node for controlling a cell, comprising:
a control circuit;
a processor installed in the control circuit; and
a memory installed in the control circuit and operatively coupled to the processor;
wherein the processor is configured to execute a program code stored in the memory to:
communicate with a UE (User Equipment) in the cell via downlink and uplink transmissions, wherein the downlink and uplink transmissions are organized into radio frames and each radio frame contains multiple subframes and each subframe contains multiple symbols; and
transmit, in the cell, a UE specific signal to the UE in at least one first symbol of a downlink control region of a subframe of the multiple subframes and a common signal to the UE in at least one second symbol of the downlink control region of the subframe of the multiple subframes, wherein the network node does not transmit the common signal to the UE in the at least one first symbol and wherein the common signal and the UE specific signal indicate resources in different symbols of a data region of the subframe.

26. The network node of claim 25 , wherein the network node transmits the common signal at multiple timings to cover all beams of the cell.

Assignees

• Asustek Comp Inc

Inventors

• Guo Yu-Hsuan
• Lin Ko-Chiang
• Kuo Richard Lee-Chee

Classifications

• H04W72/23

  in the downlink direction of a wireless link, i.e. towards a terminal · CPC title

• H04L5/0053 Primary

  Allocation of signalling, i.e. of overhead other than pilot signals · CPC title

• H04L25/0224

  using sounding signals · CPC title

• H04L5/0048 Primary

  Allocation of pilot signals, i.e. of signals known to the receiver (allocation of control signalling H04L5/0053; use of control signalling H04L5/0091) · CPC title

• H04B7/0617

  for beam forming · CPC title