Narrow-band broadcast/multi-cast design

Inventors: Renqiu Wang (San Diego, CA); Hao Xu (Beijing, CN); Peter Gaal (San Diego, CA); Alberto Rico Alvarino (San Diego, CA); Xiao Feng Wang (San Diego, CA); Seyed Ali Akbar Fakoorian (San Diego, CA); Jing Lei (San Diego, CA)

Assignee: QUALCOMM Incorporated

H04W72/0453 H04L1/08 H04L27/2607 H04L67/12 H04W4/06 H04W4/70 H04W72/005 H04W72/0446 H04W72/14 H04L2001/0093

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Quick Facts

Patent No.: US 11,160,077
App. No.: 16/688,928
Granted: Oct 26, 2021
Kind: B2

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Abstract

NB wireless communication involves numerous challenges. A limited frequency dimension may need to be shared by multiple users. At times, large data transmissions, including multiple TBs of data may be transmitted using NB communication, and it may be important that each TB be successfully received by the users. The apparatus may transmit data comprising a plurality of TBs in a narrow band communications system, including repeating a transmission of the plurality of TBs, using any of a number of repetition patterns. The apparatus may use error correction encoding across multiple TBs. The transmission may be a single cell transmission or a multi-cell transmission.

Claims (79)

1. A method of wireless communication at a user equipment (UE), comprising:

receiving, from a base station, configuration information indicating a time and frequency resource and a transmission structure for a narrowband data transmission comprising a plurality of transport blocks;

transmitting, in response to receipt of the configuration information, a ready indication to the base station using a narrow band, the ready indication indicating that the UE is ready to receive the narrowband data transmission from the base station; and

receiving the narrowband data transmission from the base station after transmitting the ready indication.

2. The method of claim 1 , further comprising:

determining whether all of the plurality of transport blocks of the narrowband data transmission are successfully received by the UE; and

transmitting an acknowledgment to the base station that all of the transport blocks were successfully received by the UE.

3. The method of claim 1 , wherein the narrowband data transmission that is received in response to the transmitted ready indication comprises a repetition of the plurality of transport blocks.

4. The method of claim 1 , wherein the plurality of transport blocks comprise transport blocks encoded using outer coding, the method further comprising:

using the outer coding to perform error correction for the narrowband data transmission.

5. The method of claim 1 , wherein the configuration information is received in system information from the base station.

6. The method of claim 1 , wherein the configuration information includes at least one of:

a time for a broadcast transmission of the narrowband data transmission;

a transport block size for the narrowband data transmission;

a number of transport blocks comprised in the narrowband data transmission;

a first repetition factor of each of the transport blocks of the narrowband data transmission;

a second repetition factor of the narrowband data transmission;

a repetition pattern for the transport blocks of the narrowband data transmission indicating an order of repetition of the plurality of transport blocks within the data transmission;

a number of resource blocks used for the narrowband data transmission; or

an indication of an intended UE coverage level for a corresponding pattern.

7. The method of claim 1 , wherein the narrowband data transmission is received on a physical downlink shared channel (PDSCH).

8. The method of claim 1 , wherein the narrowband data transmission is received on a Physical Multi-Cast Channel (PMCH).

9. An apparatus for wireless communication at a user equipment (UE), comprising:

a memory; and

at least one processor coupled to the memory and configured to:

receive, from a base station, configuration information indicating a time and frequency resource and a transmission structure for a narrowband data transmission comprising a plurality of transport blocks;

transmit, in response to receipt of the configuration information, a ready indication to the base station using a narrow band, the ready indication indicating that the UE is ready to receive the narrowband data transmission from the base station; and

receive the narrowband data transmission from the base station after transmitting the ready indication.

10. The apparatus of claim 9 , wherein the at least one processor is further configured to:

determine whether all transport blocks of the plurality of transport blocks of the narrowband data transmission are successfully received by the UE; and

transmit an acknowledgment to the base station that all transport blocks of the plurality of transport blocks were successfully received by the UE.

11. The apparatus of claim 9 , wherein the narrowband data transmission that is received in response to the transmitted ready indication comprises a repetition of the plurality of transport blocks.

12. The apparatus of claim 9 , wherein the plurality of transport blocks comprise transport blocks encoded using outer coding, wherein the at least one processor is further configured to:

use the outer coding to perform error correction for the narrowband data transmission.

13. The apparatus of claim 9 , wherein the configuration information includes at least one of: