Enhanced internet of things relay data re-transmission

Patent metadata

Field	Value
Publication number	US-11811485-B2
Application number	US-202117497600-A
Country	US
Kind code	B2
Filing date	Oct 8, 2021
Priority date	Nov 8, 2017
Publication date	Nov 7, 2023
Grant date	Nov 7, 2023

Abstract

A method, an apparatus, and a non-transitory computer readable medium for receiving data and one or more redundant equivalent versions of the data from a remote user equipment (UE), buffering the data and the one or more redundant equivalent versions of the data, transmitting the data to a base station, receiving at least one negative acknowledgement, relating to the data, from the base station indicating an unsuccessful reception of the data; and transmitting, in response to receiving the at least one negative acknowledgement, at least one of the one or more redundant equivalent versions of the data to the base station.

First claim

What is claimed is:

1. A method of wireless communication by a base station (BS), comprising:
receiving data from a relay user equipment (UE);
transmitting at least one negative acknowledgement (NACK) relating to the data, to the relay UE, indicating an unsuccessful reception of the data by the BS; and
receiving at least one of one or more redundant equivalent versions of the data from the relay UE, the received one or more redundant equivalent versions of the data providing a successful reception of the data including at least a first portion and a second portion, and priority data indicating a priority in transmission between at least the first portion and the second portion.

2. The method of claim 1 , further comprising:
transmitting, after receiving the at least one of the one or more redundant equivalent versions of the data, an additional NACK to the relay UE indicating the unsuccessful reception of the data; and
receiving another one of the one or more redundant equivalent versions of the data.

3. The method of claim 1 , wherein:
the data includes timing data indicating a permissible delay before the relay UE transmitting the data.

4. The method of claim 1 , further comprising decrypting the data or one of the one or more redundant equivalent versions of the data after reception.

5. The method of claim 1 , further comprising:
transmitting at least one acknowledgement (ACK) in response to a successful reception of the at least one of the one or more redundant equivalent versions of the data; and
receiving additional data from the relay UE, wherein the additional data were scheduled by the relay UE to be transmitted during a suitable radio condition indicated by the reception of the at least one ACK by the relay UE.

6. A base station (BS), comprising:
a memory storing instructions;
a transceiver; and
one or more processors coupled with the memory and the transceiver, and configured to execute the instructions to:
receive, via the transceiver, data from a relay user equipment (UE);
transmit, via the transceiver, at least one negative acknowledgement (NACK) relating to the data, to the relay UE, indicating an unsuccessful reception of the data by the BS; and
receive, via the transceiver, at least one of one or more redundant equivalent versions of the data from the relay UE, the received one or more redundant equivalent versions of the data providing a successful reception of the data including at least a first portion and a second portion, and priority data indicating a priority in transmission between at least the first portion and the second portion.

7. The BS of claim 6 , wherein the one or more processors are further configured to execute the instructions to:
transmit, via the transceiver, after receiving the at least one of the one or more redundant equivalent versions of the data, an additional NACK to the relay UE indicating the unsuccessful reception of the data; and
receive, via the transceiver, another one of the one or more redundant equivalent versions of the data.

8. The BS of claim 6 , wherein:
the data includes timing data indicating a permissible delay before the relay UE transmitting the data.

9. The BS of claim 6 , wherein the one or more processors are further configured to execute the instructions to decrypt the data or one of the one or more redundant equivalent versions of the data after reception.

10. The BS of claim 6 , wherein the one or more processors are further configured to execute the instructions to:
transmit, via the transceiver, at least one acknowledgement (ACK) in response to a successful reception of the at least one of the one or more redundant equivalent versions of the data; and
receive, via the transceiver, additional data from the relay UE, wherein the additional data were scheduled by the relay UE to be transmitted during a suitable radio condition indicated by the reception of the at least one ACK by the relay UE.

11. A non-transitory computer readable medium including instructions that, when executed by one or more processors of a base station (BS), cause the one or more processors to:
receive data from a relay user equipment (UE);
transmit at least one negative acknowledgement (NACK) relating to the data, to the relay UE, indicating an unsuccessful reception of the data by the BS; and
receive at least one of one or more redundant equivalent versions of the data from the relay UE, the received one or more redundant equivalent versions of the data providing a successful reception of the data including at least a first portion and a second portion, and priority data indicating a priority in transmission between at least the first portion and the second portion.

12. The non-transitory computer readable medium of claim 11 , further comprising instructions that, when executed by the one or more processors of the BS, cause the one or more processors to:
transmit, after receiving the at least one of the one or more redundant equivalent versions of the data, an additional NACK to the relay UE indicating the unsuccessful reception of the data; and
receive another one of the one or more redundant equivalent versions of the data.

13. The non-transitory computer readable medium of claim 11 , wherein:
the data includes timing data indicating a permissible delay before the relay UE transmitting the data.

14. The non-transitory computer readable medium of claim 11 , further comprising instructions that, when executed by the one or more processors of the BS, cause the one or more processors to decrypt the data or one of the one or more redundant equivalent versions of the data after reception.

15. The non-transitory computer readable medium of claim 11 , further comprising instructions that, when executed by the one or more processors of the BS, cause the one or more processors to:
transmit at least one acknowledgement (ACK) in response to a successful reception of the at least one of the one or more redundant equivalent versions of the data; and
receive additional data from the relay UE, wherein the additional data were scheduled by the relay UE to be transmitted during a suitable radio condition indicated by the reception of the at least one ACK by the relay UE.

Assignees

• Qualcomm Inc

Inventors

• Mohan Prashanth
• Pasunooru Naveen Kumar
• Annam Raevanth Venkat
• Gupta Pankaj Shivcharan
• Vasanthasenan Krishnakumar
• Iyer Ashish Shankar
• Rajagopalan Srinivasan

Classifications

• H04B7/14 Primary

  Relay systems · CPC title

• H04B7/15528

  Control of operation parameters of a relay station to exploit the physical medium · CPC title

• H04L1/1819 Primary

  with retransmission of additional or different redundancy · CPC title

• H04L5/0055

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

• H04L63/0428

  wherein the data content is protected, e.g. by encrypting or encapsulating the payload · CPC title