# US 12,003,320 B2 · Information transmission method with mapping of PBCH reference signal, information reception method, network side device and user equipment

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- Number: US 12,003,320 B2
- Document ID: US12003320B2
- Status: Granted
- Kind: B2
- Application number: 16/623,147
- Filed: 2018-06-11
- Published: 2020-06-11
- Granted: 2024-06-04
- Earliest claimed: 2017-06-16
- Assignees: Vivo Mobile Communication Co., Ltd.
- Applicants: Vivo Mobile Communication Co., Ltd.
- Inventors: Kai Wu; Xiaodong Shen; Yu Ding; Xueming Pan
- Web page: https://patentgrep.com/patent/US12003320B2

## CPC

- H04L 1/0027: {Scheduling of signalling, e.g. occurrence thereof}
- H04L 1/00: Arrangements for detecting or preventing errors in the information received {(correcting synchronisation H04L7/00)}
- H04L 1/0061: {Error detection codes}
- H04L 5/0026: {Division using four or more dimensions, e.g. beam steering or quasi-co-location [QCL]}
- H04L 5/0048: {Allocation of pilot signals, i.e. of signals known to the receiver (allocation of control signalling H04L5/0053; use of control signalling H04L5/0091)}
- H04L 5/005: {of common pilots, i.e. pilots destined for multiple users or terminals}
- H04L 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals}
- H04L 5/0091: {Signalling for the administration of the divided path, e.g. signalling of configuration information}
- H04L 25/0202: {Channel estimation}
- H04L 25/0224: {using sounding signals}
- H04L 27/2613: {Structure of the reference signals}
- H04L 27/2666: {Acquisition of further OFDM parameters, e.g. bandwidth, subcarrier spacing, or guard interval length}
- H04W 48/10: using broadcasted information
- H04W 56/001: {Synchronization between nodes}
- H04W 72/30: Resource management for broadcast services
- H04L 27/26136: {Pilot sequence conveying additional information}
- H04L 27/2695: {with channel estimation, e.g. determination of delay spread, derivative or peak tracking (channel estimation H04L25/0202)}
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)

## Abstract

Provided are an information transmission method, an information reception method, a network side device and a UE. The information transmission method includes: mapping a first to-be-transmitted signal and a second to-be-transmitted signal to a first OFDM symbol and a second OFDM symbol in an SS block respectively, a phase difference between the first to-be-transmitted signal and the second to-be-transmitted signal representing target information; and transmitting the first to-be-transmitted signal, the second to-be-transmitted signal and parity information for checking the target information through the SS block, and the parity information being carried by a PBCH.

## Claims

### Claim 1

An information transmission method for a network side device in a New Radio (NR) system, comprising:
mapping a Physical Broadcast Channel (PBCH) reference signal to a symbol of a Synchronization Signal (SS) block through which a PBCH is to be transmitted, target information being transmitted through a sequence of the PBCH reference signal; and
transmitting the PBCH reference signal and parity information through the SS block, the parity information being configured to check the target information, and the parity information being carried by the PBCH,
wherein the target information consists of only one high-order bit of the time index information of the SS block,
wherein the parity information is information acquired through encoding first concatenate information; the first concatenate information is information acquired through concatenating combination information and first parity information corresponding to the combination information; and the combination information is information acquired through combining partial minimum system information of the NR system and the target information, the first parity information comprises Cyclic Redundancy Check (CRC) information, parity check information, or Hamming code check information; or
the parity information is information acquired through encoding second concatenate information; the second concatenate information is information acquired through concatenating partial minimum system information of the NR system and first parity information corresponding to combination information; and the combination information is information acquired through combining the partial minimum system information of the NR system and the target information, and the first parity information comprises CRC information, parity check information, or Hamming code check information; or
the parity information is information acquired through encoding third concatenate information; the third concatenate information is information acquired through concatenating partial minimum system information of the NR system and second parity information corresponding to the partial minimum system information of the NR system; and the second parity information is information acquired through scrambling third parity information corresponding to the partial minimum system information of the NR system by using a scrambling sequence corresponding to the target information, and the third parity information comprises CRC information, parity check information, or Hamming code check information.

### Claim 2 (depends on 1)

The information transmission method according to claim 1, wherein the parity information is Cyclic Redundancy Check (CRC) information.

### Claim 3

An information reception method for a User Equipment (UE) in a NR system, comprising:
performing reception detection on an SS block, to acquire a first transmission signal mapped to a first Orthogonal Frequency Division Multiplexing (OFDM) symbol, a second transmission signal mapped to a second OFDM symbol, and parity information carried by a PBCH;
performing channel estimation on the first transmission signal and the second transmission signal, to acquire a phase difference between the first transmission signal and the second transmission signal;
acquiring to-be-checked target information in accordance with the phase difference; and
checking the to-be-checked target information in accordance with the parity information,
wherein the target information consists of only one high-order bit of the time index information of the SS block,
wherein the parity information is information acquired through encoding first concatenate information; the first concatenate information is information acquired through concatenating combination information and first parity information corresponding to the combination information; and the combination information is information acquired through combining partial minimum system information of the NR system and the target information, the first parity information comprises CRC information, parity check information, or Hamming code check information; or
the parity information is information acquired through encoding second concatenate information; the second concatenate information is information acquired through concatenating partial minimum system information of the NR system and first parity information corresponding to combination information; and the combination information is information acquired through combining the partial minimum system information of the NR system and the target information, and the first parity information comprises CRC information, parity check information, or Hamming code check information; or
the parity information is information acquired through encoding third concatenate information; the third concatenate information is information acquired through concatenating partial minimum system information of the NR system and second parity information corresponding to the partial minimum system information of the NR system; and the second parity information is information acquired through scrambling third parity information corresponding to the partial minimum system information of the NR system by using a scrambling sequence corresponding to the target information, and the third parity information comprises CRC information, parity check information, or Hamming code check information.

### Claim 4 (depends on 3)

The information reception method according to claim 3, wherein the first transmission signal and the second transmission signal are each a reference signal or data.

### Claim 5 (depends on 4)

The information reception method according to claim 4, wherein the first OFDM symbol and the second OFDM symbol are each a symbol for transmitting the PBCH.

### Claim 6 (depends on 3)

The information reception method according to claim 3, wherein the parity information is CRC information.

### Claim 7 (depends on 3)

The information reception method according to claim 3, wherein the parity information is the information acquired through encoding the first concatenate information; the first concatenate information is the information acquired through concatenating the combination information and the first parity information corresponding to the combination information; the combination information is the information acquired through combining the partial minimum system information of the NR system and the target information; and the target information is information acquired by a network side device in accordance with a first to-be-transmitted signal and a second to-be-transmitted signal mapped to a first OFDM symbol and a second OFDM symbol respectively,
wherein the checking the to-be-checked target information in accordance with the parity information comprises:
checking the first concatenate information; and
when a checking result of the first concatenate information is positive, checking the to-be-checked target information in accordance with the target information in the combination information.

### Claim 8 (depends on 3)

The information reception method according to claim 3, wherein the parity information is the information acquired through encoding the second concatenate information; the second concatenate information is the information acquired through concatenating the partial minimum system information of the NR system and the first parity information corresponding to the combination information; the combination information is the information acquired through combining the partial minimum system information of the NR system and the target information; and the target information is information acquired by a network side device in accordance with a first to-be-transmitted signal and a second to-be-transmitted signal mapped to a first OFDM symbol and a second OFDM symbol respectively,
wherein the checking the to-be-checked target information in accordance with the parity information comprises:
combining the second concatenate information and the to-be-checked target information; and
checking the combined information.

### Claim 9 (depends on 3)

The information reception method according to claim 3, wherein the parity information is the information acquired through encoding third concatenate information; the third concatenate information is the information acquired through concatenating the partial minimum system information of the NR system and the second parity information corresponding to the partial minimum system information of the NR system; the second parity information is information acquired through scrambling the third parity information corresponding to the partial minimum system information of the NR system by using the scrambling sequence corresponding to the target information, and the target information is information acquired by a network side device in accordance with a first to-be-transmitted signal and a second to-be-transmitted signal mapped to a first OFDM symbol and a second OFDM symbol respectively,
wherein the checking the to-be-checked target information in accordance with the parity information comprises:
determining the scrambling sequence corresponding to the to-be-checked target information;
descrambling the third parity information in the third concatenate information by using the scrambling sequence corresponding to the to-be-checked target information; and
checking the descrambled third concatenate information.

### Claim 10 (depends on 3)

The information reception method according to claim 3, wherein the parity information is information acquired through encoding third concatenate information; the third concatenate information is information acquired through concatenating partial minimum system information of the NR system and second parity information corresponding to the partial minimum system information of the NR system; the second parity information is information acquired through scrambling third parity information corresponding to the partial minimum system information of the NR system by using a scrambling sequence corresponding to the target information; and the target information is information acquired by a network side device in accordance with a first to-be-transmitted signal and a second to-be-transmitted signal mapped to a first OFDM symbol and a second OFDM symbol respectively,
wherein the checking the to-be-checked target information in accordance with the parity information comprises:
descrambling the third parity information in the third concatenate information by using the scrambling sequence;
checking the descrambled third concatenate information; and
checking the to-be-checked target information in accordance with the target information corresponding to the scrambling sequence used when a checking result of the descrambled third concatenate information is positive.

### Claim 11

A network side device in a NR system, comprising a processor, a memory, and an information transmission program stored in the memory and capable of being executed by the processor, wherein the processor is configured to execute the information transmission program to implement the information transmission method according to:
map a PBCH reference signal to a symbol of a SS block through which a PBCH is to be transmitted, target information being transmitted through a sequence of the PBCH reference signal; and
transmit the PBCH reference signal and parity information through the SS block, the parity information being configured to check the target information, and the parity information being carried by the PBCH,
wherein the target information consists of only one high-order bit of the time index information of the SS block,
wherein the parity information is information acquired through encoding first concatenate information; the first concatenate information is information acquired through concatenating combination information and first parity information corresponding to the combination information; and the combination information is information acquired through combining partial minimum system information of the NR system and the target information, and the first parity information comprises CRC information, parity check information, or Hamming code check information; or
the parity information is information acquired through encoding second concatenate information; the second concatenate information is information acquired through concatenating partial minimum system information of the NR system and first parity information corresponding to combination information; and the combination information is information acquired through combining the partial minimum system information of the NR system and the target information, and the first parity information comprises CRC information, parity check information, or Hamming code check information; or
the parity information is information acquired through encoding third concatenate information; the third concatenate information is information acquired through concatenating partial minimum system information of the NR system and second parity information corresponding to the partial minimum system information of the NR system; and the second parity information is information acquired through scrambling third parity information corresponding to the partial minimum system information of the NR system by using a scrambling sequence corresponding to the target information, and the third parity information comprises CRC information, parity check information, or Hamming code check information.

### Claim 12 (depends on 3)

A UE, comprising a processor, a memory, and an information reception program stored in the memory and capable of being executed by the processor, wherein the processor is configured to execute the information reception program to implement the information reception method according to claim 3.

### Claim 13 (depends on 11)

The network side device according to claim 11, wherein the parity information is CRC information.

### Claim 14 (depends on 12)

The UE according to claim 12, wherein the first transmission signal and the second transmission signal are each a reference signal or data.

### Claim 15 (depends on 14)

The UE according to claim 14, wherein the first OFDM symbol and the second OFDM symbol are each a symbol for transmitting the PBCH.

### Claim 16 (depends on 12)

The UE according to claim 12, wherein the parity information is CRC information.

### Claim 17 (depends on 12)

The UE according to claim 12, wherein the parity information is the information acquired through encoding the first concatenate information; the first concatenate information is the information acquired through concatenating the combination information and the first parity information corresponding to the combination information; the combination information is the information acquired through combining the partial minimum system information of the NR system and the target information; and the target information is information acquired by a network side device in accordance with a first to-be-transmitted signal and a second to-be-transmitted signal mapped to a first OFDM symbol and a second OFDM symbol respectively,
wherein the checking the to-be-checked target information in accordance with the parity information comprises:
checking the first concatenate information; and
when a checking result of the first concatenate information is positive, checking the to-be-checked target information in accordance with the target information in the combination information.