Device and Method of Handling Code Block Group-Based Communication Operation

Patent metadata

Field	Value
Publication number	US-2018367259-A1
Application number	US-201816009224-A
Country	US
Kind code	A1
Filing date	Jun 15, 2018
Priority date	Jun 16, 2017
Publication date	Dec 20, 2018
Grant date	—

Abstract

A communication device for handling a code block group (CBG)-based communication operation comprises at least one storage device; and at least one processing circuit, coupled to the at least one storage device. The at least one storage device stores, and the at least one processing circuit is configured to execute instructions of receiving an indication configuring at least one CBG-based communication operation to the communication device from a network; receiving a maximum number of CBGs in a transport block (TB) for the at least one CBG-based communication operation from the network; and performing the at least one CBG-based communication operation with the network according to the maximum number of CBGs.

First claim

What is claimed is:

1 . A communication device for handling a code block group (CBG)-based communication operation, comprising:
at least one storage device; and at least one processing circuit, coupled to the at least one storage device, wherein the at least one storage device stores, and the at least one processing circuit is configured to execute instructions of: receiving an indication configuring at least one CBG-based communication operation to the communication device from a network; receiving a maximum number of CBGs in a transport block (TB) for the at least one CBG-based communication operation from the network; and performing the at least one CBG-based communication operation with the network according to the maximum number of CBGs.

2 . The communication device of claim 1 , wherein the at least one CBG-based communication operation comprises a reception of a physical DL shared channel (PDSCH), or the at least one CBG-based communication operation comprises a transmission of a physical UL control channel (PUSCH).

3 . The communication device of claim 1 , wherein the maximum number of CBGs is received in a radio resource control (RRC) signaling.

4 . The communication device of claim 1 , wherein the maximum number of CBGs for an uplink (UL) is a first value, and the maximum number of CBGs for a downlink (DL) is a second value.

5 . The communication device of claim 1 , wherein the maximum number of CBGs for a first time period is a first value, and the maximum number of CBGs for a second time period is a second value.

6 . The communication device of claim 1 , wherein the instructions further comprise:
obtaining a size of a CBG field according to the maximum number of CBGs; receiving the CBG field with the size of the CBG field in a first DL control information (DCI), wherein the CBG field indicates at least one transmitted CBG; and performing the at least one CBG-based communication operation with the network according to the CBG field.

7 . The communication device of claim 6 , wherein the size of the CBG field is the same as the maximum number of CBGs.

8 . The communication device of claim 6 , wherein the instructions further comprise:
receiving a second DCI indicating a location of the first DCI from the network.

9 . The communication device of claim 8 , wherein the first DCI is received in a physical DL shared channel (PDSCH), and the second DCI is received in a physical DL control channel (PDCCH).

10 . The communication device of claim 6 , wherein the first DCI is received in a PDCCH.

11 . The communication device of claim 1 , wherein the instructions further comprise:
obtaining an actual number of CBGs according to a predetermined rule; and performing the at least one CBG-based communication operation with the network according to the maximum number of CBGs and the actual number of CBGs.

12 . The communication device of claim 11 , wherein the predetermined rule comprises at least one of a size of the TB, a number of CBs in the TB, the maximum number of CBGs, a user equipment (UE) category of the communication device, a UE capability of the communication device, a transmission numerology, a subcarrier spacing, a number of bandwidth parts and a system bandwidth.

13 . The communication device of claim 11 , wherein the predetermined rule comprises a minimum of a number of CBs in the TB and the maximum number of CBGs.

14 . The communication device of claim 1 , wherein the instruction of performing the at least one CBG-based communication operation with the network according to the maximum number of CBGs comprises:
transmitting a hybrid automatic repeat request (HARQ) feedback with a HARQ feedback payload size related to the maximum number of CBGs to the network, wherein the HARQ feedback indicates at least one decoding result of at least one CBG in the TB.

15 . The communication device of claim 14 , wherein the HARQ feedback payload size is the same as the maximum number of CBGs.

16 . The communication device of claim 14 , wherein the HARQ feedback payload size is obtained according to the maximum number of CBGs and a number of a plurality of TBs in a HARQ process, if the HARQ process comprises the plurality of TBs.

17 . The communication device of claim 14 , wherein a plurality of bits of the HARQ feedback for the TB is arranged contiguously.

18 . The communication device of claim 14 , wherein the rest of the HARQ feedback is padded with at least one bit or is reserved, if an actual number of CBGs is smaller than the maximum number of CBGs.

19 . The communication device of claim 18 , wherein the at least one bit comprises only at least one bit “ 1 ”, comprises only at least one bit “ 0 ”, comprises only at least one bit indicating “NACK”, or comprises only at least one bit indicating “ACK”.

20 . The communication device of claim 1 , wherein the instruction of performing the at least one CBG-based communication operation with the network according to the maximum number of CBGs comprises:
transmitting a plurality of HARQ feedbacks with a plurality of HARQ feedback payload sizes related to a plurality of maximum numbers of CBGs to the network, wherein the plurality of HARQ feedbacks indicate a plurality of decoding results of a plurality of TBs and are transmitted according to a plurality of contiguous HARQ feedback indices of the plurality of HARQ feedbacks.

21 . The communication device of claim 1 , wherein the instruction of performing the at least one CBG-based communication operation with the network according to the maximum number of CBGs comprises:
decoding all at least one CBG in the TB correctly; performing a cyclic redundancy check (CRC) on the TB incorrectly; and transmitting at least one negative acknowledgement (NACK) corresponding to the all at least one CBG to the network in response to the TB.

22 . The communication device of claim 1 , wherein the maximum number of CBGs is applied to a plurality of TBs in the at least one CBG-based communication operation, if the plurality of TBs are comprised in a HARQ process.

23 . A network for handling a code block group (CBG)-based communication operation, comprising:
at least one storage device; and at least one processing circuit, coupled to the at least one storage device, wherein the at least one storage device stores, and the at least one processing circuit is configured to execute instructions of: transmitting an indication configuring at least one CBG-based communication operation to a communication device; transmitting a maximum number of CBGs in a transport block (TB) for the at least one CBG-based communication operation; and performing the at least one CBG-based communication operation with the communication device according to the maximum number of CBGs.

24 . The network of claim 23 , wherein the at least one CBG-based communication operation comprises a transmission of a physical DL shared channel (PDSCH), or the at least one CBG-based communication operation comprises a reception of a physical UL control channel (PUSCH).

25 . The network of claim 23 , wherein the maximum number of CBGs is transmitted in a radio resource control (RRC) signaling.

26 . The network of claim 23 , wherein the maximum number of CBGs for an uplink (UL) is a first value, and the maximum number of CBGs for a downlink (DL) is a second value.

27 . The netw

Assignees

• Acer Inc

Inventors

• Hsieh Chia-Wen
• Lee Chien-Min

Classifications

• H04W72/23

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

• H04L1/1861

  Physical mapping arrangements (for ACK signaling see also H04L5/0053) · CPC title

• H04L1/1812 Primary

  Hybrid protocols; Hybrid automatic repeat request [HARQ] · CPC title

• H04L1/1858 Primary

  Transmission or retransmission of more than one copy of acknowledgement message · CPC title

• H04L5/0055

  Physical resource allocation for ACK/NACK (for physical mapping arrangements in ARQ protocols H04L1/1861) · CPC title