Control information sending method, control information receiving method, user equipment, and network device

Patent metadata

Field	Value
Publication number	US-10797831-B2
Application number	US-201815916536-A
Country	US
Kind code	B2
Filing date	Mar 9, 2018
Priority date	Sep 11, 2015
Publication date	Oct 6, 2020
Grant date	Oct 6, 2020

Abstract

Embodiments disclose a control information sending method, a control information receiving method, user equipment, and a network device. The sending method includes: obtaining a resource occupied by first uplink control information UCI, and obtaining a resource occupied by second UCI; performing channel encoding on the first UCI according to the resource occupied by the first UCI, to obtain an encoded bit sequence of the first UCI, and performing channel encoding on the second UCI according to the resource occupied by the second UCI, to obtain an encoded bit sequence of the second UCI; mapping the encoded bit sequence of the first UCI and the encoded bit sequence of the second UCI to a physical uplink channel; and sending the physical uplink channel.

First claim

What is claimed is:

1. A method, comprising:
obtaining a first quantity Q 1 of encoded bits of resource occupied by first uplink control information (UCI), wherein the first UCI comprises a first part of channel state information (CSI) and a hybrid automatic repeat request-acknowledgment message (HARQ-ACK);
obtaining a second quantity Q 2 of encoded bits of second UCI, wherein the second UCI comprises a second part of the CSI;
jointly performing channel encoding on the first part of the CSI and the HARQ-ACK according to the first quantity Q 1 of encoded bits of the first UCI, to obtain an encoded bit sequence of the first UCI;
independently performing channel encoding on the second part of the CSI according to the second quantity Q 2 of encoded bits of the second UCI, to obtain an encoded bit sequence of the second UCI;
mapping the encoded bit sequence of the first UCI and the encoded bit sequence of the second UCI to a physical uplink channel; and
sending the first UCI and the second UCI on the physical uplink channel;
wherein the first quantity Q 1 of encoded bits of the first UCI satisfies one of the following relations:
Q 1 =┌Q ′*( O 1 /( O 1 +O 2 )*β offset ┐; or

Q 1 =M sc PUCCH *N symb UCI1 ; and

wherein the second quantity Q 2 of encoded bits of the second UCI satisfies one of the following relations:
Q 2 =Q′−Q 1 ; or
Q 2 =M sc PUCCH *N symb UCI2 ; and

wherein O 1 is a quantity of information bits of the first UCI, O 2 is a quantity of information bits of the second UCI, Q′ is a capacity of the physical uplink channel, Q′=M sc PUCCH *N symb PUCCH *Q m , M sc PUCCH is a quantity of subcarriers allocated to the physical uplink channel, M sc PUCCH =12*N PRB , N PRB is a quantity of radio resource blocks (RBs) allocated to the physical uplink channel, N symb PUCCH is a quantity of time domain symbols used to transmit uplink control information on the physical uplink channel, N symb PUCCH =(2·N symb UL −N DMRS −N SRS ), N symb UL is a quantity of time domain symbols occupied by the physical uplink channel in one timeslot, N DMRS is a quantity of symbols used to transmit a demodulation reference signal (DMRS) pilot signal on the physical uplink channel in one subframe, N symb UCI1 is a quantity of time domain symbols used to transmit the first UCI, N symb UCI2 is a quantity of time domain symbols used to transmit the second UCI, Q m is a modulation order, β offset is a value semi-statically configured using higher layer signaling, or a predetermined value, and N SRS is a quantity of time domain symbols used to transmit a sounding reference signal (SRS) in the subframe.

2. The method according to claim 1 , wherein mapping the encoded bit sequence of the first UCI and the encoded bit sequence of the second UCI to the physical uplink channel comprises:
converting the encoded bit sequence of the first UCI into an encoded vector sequence of the first UCI;
converting the encoded bit sequence of the second UCI into an encoded vector sequence of the second UCI;
interleaving the encoded vector sequence of the first UCI and the encoded vector sequence of the second UCI, to obtain an encoded bit sequence of UCI; and
mapping the encoded bit sequence of the UCI to the physical uplink channel.

3. The method according to claim 2 , wherein interleaving the encoded vector sequence of the first UCI and the encoded vector sequence of the second UCI, to obtain the encoded bit sequence of UCI, comprises:
writing the encoded vector sequence of the first UCI into a matrix row by row;
writing, row by row, the encoded vector sequence of the second UCI into a location, in the matrix, other than a location into which the encoded vector sequence of the first UCI is written; and
sequentially reading encoded bits in columns of the matrix column by column, to obtain the encoded bit sequence of the UCI.

4. The method according to claim 1 , wherein mapping the encoded bit sequence of the first UCI and the encoded bit sequence of the second UCI to the physical uplink channel comprises:
modulating the encoded bit sequence of the first UCI and the encoded bit sequence of the second UCI, to obtain an encoded vector sequence, or modulating the encoded bit sequence of the first UCI and the encoded bit sequence of the second UCI, to obtain an encoded vector sequence of the first UCI and an encoded vector sequence of the second UCI respectively; and
mapping the encoded vector sequence, or the encoded vector sequence of the first UCI and the encoded vector sequence of the second UCI, to the physical uplink channel in a frequency domain-first and time domain-last manner or in a time domain-first and frequency domain-last manner.

5. An apparatus, comprising:
a processor; and
a non-transitory computer-readable storage medium storing a program to be executed by the processor, the program including instructions for:
obtaining a first quantity Q 1 of encoded bits of first uplink control information (UCI), wherein the first UCI comprises a first part of channel state information (CSI) and a hybrid automatic repeat request-acknowledgment message (HARQ-ACK);
obtaining a second quantity Q 2 of encoded bits of second UCI, wherein the second UCI comprises a second part of the CSI;
jointly performing channel encoding on the first part of the CSI and the HARQ-ACK according to the first quantity Q 1 of encoded bits of the first UCI, to obtain an encoded bit sequence of the first UCI; and
independently performing channel encoding on the second part of the CSI according to the second quantity Q 2 of encoded bits of the second UCI, to obtain an encoded bit sequence of the second UCI; and
mapping the encoded bit sequence of the first UCI and the encoded bit sequence of the second UCI to a physical uplink channel;
wherein the first quantity Q 1 of encoded bits of the first UCI satisfies one of the following relations:
Q 1 =┌Q ′*( O 1 /( O 1 +O 2 )*β offset ┐; or

Q 1 =M sc PUCCH *N symb UCI1 ; and

wherein the second quantity Q 2 of encoded bits of the second UCI satisfies one of the following relations:
Q 2 =Q′−Q 1 ; or
Q 2 =M sc PUCCH *N symb UCI2 ; and

wherein O 1 is a quantity of information bits of the first UCI, O 2 is a quantity of information bits of the second UCI, Q′ is a capacity of the physical uplink channel, Q′=M sc PUCCH *N symb PUCCH *Q m , M sc PUCCH is a quantity of subcarriers allocated to the physical uplink channel, M sc PUCCH =12*N PRB , N PRB is a quantity of radio resource blocks (RBs) allocated to the physical uplink channel, N symb PUCCH is a quantity of time domain symbols used to transmit uplink control information on the physical uplink channel, N symb PUCCH =(2·N symb UL −N DMRS −N SRS ), N symb UL is a quantity of time domain symbols occupied by the physical uplink channel in one timeslot, N DMRS is a quantity of symbols used to transmit a demodulation reference signal (DMRS) pilot signal on the physical uplink channel in one subframe, N symb UCI1 is a quantity of time domain symbols used to transmit the first UCI, N symb UCI2 is a quantity of time domain symbols used to transmit the second UCI, Q m is a modulation order, β offset is a value semi-statically configured using higher layer signaling, or a predetermined value, and N SRS is a quantity of time domain symbols used to transmit a sounding reference signal (SRS) in the subframe.

6. The apparatus according to claim 5 , wherein the program further includes instructions for:
converting the encoded bit sequence of the first UCI into an encoded vector sequence of the first UCI; and
converting the encoded bit sequence of the second

Assignees

• Huawei Tech Co Ltd

Inventors

• Lyu Yongxia
• Guan Lei
• Yan Zhiyu

Classifications

• H04W72/21

  in the uplink direction of a wireless link, i.e. towards the network · CPC title

• H04L1/0026 Primary

  Transmission of channel quality indication · CPC title

• H04W72/1268

  of uplink data flows · CPC title

• H04L1/1812 Primary

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

• H04B7/0626

  Channel coefficients, e.g. channel state information [CSI] · CPC title