IP Library Granted Patent US 12,349,144
Granted Patent B2
US 12,349,144 · App. 17/859,843 · Granted Jul 1, 2025

Method and device for transmitting MSG3

Inventors: Kai Wu (Dongguan, CN); Zichao Ji (Dongguan, CN); Xueming Pan (Dongguan, CN)
Assignee: VIVO MOBILE COMMUNICATION CO., LTD.
H04W72/21H04L1/1812H04W74/004H04W74/0833H04W74/085
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Quick Facts
Patent No.
US 12,349,144
App. No.
17/859,843
Granted
Jul 1, 2025
Kind
B2
Abstract

A method for transmitting MSG3 includes: receiving configuration information, and repeatedly transmitting MSG3 on multiple PUSCH resources. The configuration information is used for configuring the MSG3 repetition for at least one of: the number of times the MSG3 is to be repeatedly transmitted or a maximum number of times the MSG3 is to be repeatedly transmitted; or a modulation and coding scheme (MCS) table configuration. Before the repeatedly transmitting MSG3 on multiple PUSCH resources, the method further includes: receiving indication information. The indication information is used for instructing the terminal device to repeatedly transmit the MSG3 on the multiple PUSCH resources; and the indication information is included in at least one of: uplink (UL) grant in a random access response (RAR); or a physical downlink control channel (PDCCH) scrambled by a temporary cell-radio network temporary identifier (TC-RNTI).

Claims (102)

1. A method for transmitting MSG3, the method being performed by a terminal device, and the method comprising:

repeatedly transmitting MSG3 on multiple physical uplink shared channel (PUSCH) resources; wherein

before the repeatedly transmitting MSG3 on multiple PUSCH resources, the method further comprises:

receiving configuration information, wherein the configuration information is used for configuring the MSG3 repetition for at least one of:

the number of times the MSG3 is to be repeatedly transmitted or a maximum number of times the MSG3 is to be repeatedly transmitted;

or

a modulation and coding scheme (MCS) table configuration;

wherein before the repeatedly transmitting MSG3 on multiple PUSCH resources, the method further comprises:

receiving indication information, wherein the indication information is used for instructing the terminal device to repeatedly transmit the MSG3 on the multiple PUSCH resources; and

the indication information is comprised in at least one of:

uplink (UL) grant in a random access response (RAR); or

a physical downlink control channel (PDCCH) scrambled by a temporary cell-radio network temporary identifier (TC-RNTI).

2. The method according to claim 1 , wherein the MSG3 repeatedly transmitted on the multiple PUSCH resources corresponds to at least one of:

multiple different slots;

multiple consecutive slots;

multiple different frequency domain resources;

different RV information;

different transmission antennas; or

different spatial transmitting filters.

3. The method according to claim 1 , wherein the indication information is comprised in the PDCCH scrambled by the TC-RNTI, and an indication field occupied by the indication information comprises at least one of:

a new data indicator (NDI) field; or

a hybrid automatic repeat request (HARQ) process number field.

4. The method according to claim 1 , wherein the indication information is further used for at least one of:

indicating a number of times the MSG3 is to be repeatedly transmitted;

instructing the terminal device to repeatedly transmit the MSG3; or

indicating whether to perform frequency hopping transmission and/or frequency location information of frequency hopping.

5. The method according to claim 1 , wherein if at least one symbol corresponding to a target PUSCH resource is a flexible symbol, the repeatedly transmitting MSG3 on multiple PUSCH resources comprises at least one of:

skipping transmitting the MSG3 on the target PUSCH resource;

skipping transmitting the MSG3 on the target PUSCH resource and subsequent PUSCH resources; or

delaying the transmission of the MSG3 on the target PUSCH resource until a preset, configured, or indicated repeated transmission times is completed; wherein

the target PUSCH resource is one of the multiple PUSCH resources.

6. The method according to claim 1 , wherein before the repeatedly transmitting MSG3 on multiple PUSCH resources, the method further comprises:

sending a target preamble; wherein

the target preamble is used for a network device to instruct the terminal device to repeatedly transmit the MSG3 on the multiple PUSCH resources in a case that the target preamble has been received by the network device.

7. The method according to claim 1 , wherein before the repeatedly transmitting MSG3 on multiple PUSCH resources, the method further comprises:

sending a preamble through a target random access channel (RACH) resource; wherein

the target RACH resource is used for a network device to instruct the terminal device to repeatedly transmit the MSG3 on the multiple PUSCH resources in a case that the preamble has been received by the network device on the target RACH resource.

8. A terminal device, comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the computer program, when executed by the processor, causes the terminal device to perform:

repeatedly transmitting MSG3 on multiple physical uplink shared channel (PUSCH) resources; wherein

the computer program, when executed by the processor, causes the terminal device to further perform:

receiving configuration information, wherein the configuration information is used for configuring the MSG3 repetition for at least one of:

the number of times the MSG3 is to be repeatedly transmitted or a maximum number of times the MSG3 is to be repeatedly transmitted;

or

a modulation and coding scheme (MCS) table configuration;

wherein the computer program, when executed by the processor, causes the terminal device to further perform:

receiving indication information, wherein the indication information is used for instructing the terminal device to repeatedly transmit the MSG3 on the multiple PUSCH resources; and

the indication information is comprised in at least one of:

uplink (UL) grant in a random access response (RAR); or

a physical downlink control channel (PDCCH) scrambled by a temporary cell-radio network temporary identifier (TC-RNTI).

9. The terminal device according to claim 8 , wherein the MSG3 repeatedly transmitted on the multiple PUSCH resources corresponds to at least one of:

multiple different slots;

multiple consecutive slots;

multiple different frequency domain resources;

different RV information;

different transmission antennas; or

different spatial transmitting filters.

10. The terminal device according to claim 8 , wherein the indication information is comprised in the PDCCH scrambled by the TC-RNTI, and an indication field occupied by the indication information comprises at least one of:

a new data indicator (NDI) field; or

a hybrid automatic repeat request (HARQ) process number field.

11. The terminal device according to claim 8 , wherein the indication information is further used for at least one of:

indicating a number of times the MSG3 is to be repeatedly transmitted;

instructing the terminal device to repeatedly transmit the MSG3; or

indicating whether to perform frequency hopping transmission and/or frequency location information of frequency hopping.

12. The terminal device according to claim 8 , wherein if at least one symbol corresponding to a target PUSCH resource is a flexible symbol, the computer program, when executed by the processor, causes the terminal device to perform at least one of:

skipping transmitting the MSG3 on the target PUSCH resource;

skipping transmitting the MSG3 on the target PUSCH resource and subsequent PUSCH resources; or

delaying the transmission of the MSG3 on the target PUSCH resource until a preset, configured, or indicated repeated transmission times is completed; wherein the target PUSCH resource is one of the multiple PUSCH resources.

13. The terminal device according to claim 8 , wherein the computer program, when executed by the processor, causes the terminal device to further perform:

sending a target preamble; wherein

the target preamble is used for a network device to instruct the terminal device to repeatedly transmit the MSG3 on the multiple PUSCH resources in a case that the target preamble has been received by the network device.

14. The terminal device according to claim 8 , wherein the computer program, when executed by the processor, causes the terminal device to further perform:

sending a preamble through a target random access channel (RACH) resource; wherein

the target RACH resource is used for a network device to instruct the terminal device to repeatedly transmit the MSG3 on the multiple PUSCH resources in a case that the preamble has been received by the network device on the target RACH resource.

15. A network device, comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the computer program, when executed by the processor, causes the network device to perform:

receiving MSG3 that is repeatedly transmitted on multiple physical uplink shared channel (PUSCH) resources; wherein

the computer program, when executed by the processor, causes the network device to further perform:

sending configuration information, wherein the configuration information is used for configuring the MSG3 repetition for at least one of:

the number of times the MSG3 is to be repeatedly transmitted or a maximum number of times the MSG3 is to be repeatedly transmitted;

a modulation and coding scheme (MCS) table configuration;

wherein the computer program, when executed by the processor, causes the network device to further perform:

sending indication information, wherein the indication information is used for instructing a terminal device to repeatedly transmit the MSG3 on the multiple PUSCH resources; and

the indication information is comprised in at least one of:

uplink (UL) grant in a random access response (RAR); or

a physical downlink control channel (PDCCH) scrambled by a temporary cell-radio network temporary identifier (TC-RNTI).

16. The network device according to claim 15 , wherein the computer program, when executed by the processor, causes the network device to further perform:

receiving a preamble through a target random access channel (RACH) resource; and

instructing the terminal device to repeatedly transmit the MSG3 on the multiple PUSCH resources.

17. The network device according to claim 15 , wherein the indication information is comprised in the PDCCH scrambled by the TC-RNTI, and an indication field occupied by the indication information comprises at least one of:

a new data indicator (NDI) field; or

a hybrid automatic repeat request (HARQ) process number field.

18. The network device according to claim 15 , wherein the indication information is further used for at least one of:

indicating a number of times the MSG3 is to be repeatedly transmitted;

instructing the terminal device to repeatedly transmit the MSG3; or

indicating whether to perform frequency hopping transmission and/or frequency location information of frequency hopping.

19. The network device according to claim 15 , wherein if at least one symbol corresponding to a target PUSCH resource is a flexible symbol, the computer program, when executed by the processor, causes the network device to further perform at least one of:

skipping receiving the MSG3 on the target PUSCH resource;

skipping receiving the MSG3 on the target PUSCH resource and subsequent PUSCH resources; or

delaying the receiving of the MSG3 on the target PUSCH resource until a preset, configured, or indicated repeated transmission times is completed; wherein

the target PUSCH resource is one of the multiple PUSCH resources.

20. The network device according to claim 15 , wherein the computer program, when executed by the processor, causes the network device to further perform:

receiving a target preamble; and

instructing the terminal device to repeatedly transmit the MSG3 on the multiple PUSCH resources.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 7, 2022
From: WU, KAI; JI, ZICHAO; PAN, XUEMING
To: VIVO MOBILE COMMUNICATION CO., LTD.
Reel/Frame 060454/0484 →
Priority Claims (1)
CN 202010022694.4 · Jan 9, 2020 · national
Continuity (2)
Continuation PCTCN2021070357 · Jan 5, 2021
Related Publication 20220345271A1 · Oct 27, 2022
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