Methods and apparatus for determining network identifier for use by user equipment

Patent metadata

Field	Value
Publication number	US-12200768-B2
Application number	US-201916557219-A
Country	US
Kind code	B2
Filing date	Aug 30, 2019
Priority date	Apr 13, 2017
Publication date	Jan 14, 2025
Grant date	Jan 14, 2025

Abstract

A method of data communication, comprising: obtaining resource unit information associated with a physical uplink channel; determining an identifier at least in part based on the resource unit information; and using the identifier for transmission of a physical uplink shared channel (PUSCH). Also, a method of data communication, comprising: obtaining resource unit information associated with a physical uplink channel; determining an identifier at least in part based on the resource unit information; and using the identifier for transmission of a physical downlink channel. Also, an apparatus comprising a processor and an RF communication unit, the processor configured to obtain resource unit information associated with a physical uplink channel; determine an identifier at least in part based on the resource unit information; and use the identifier for transmission of a physical uplink shared channel (PUSCH) or a physical downlink channel.

First claim

What is claimed is:

1. A method comprising:
obtaining, by a user equipment (UE) apparatus, resource unit information for a physical uplink channel, wherein the physical uplink channel is a physical uplink shared channel (PUSCH) or a physical random access channel (PRACH);
using, by the UE apparatus, at least the resource unit information to calculate a value of an identifier, the using the at least the resource unit information comprising:
calculating, by the UE apparatus, the value of the identifier based on a sum of (1) a random access radio network temporary identifier (RA-RNTI) multiplied by a first factor and (2) a preamble index of the physical uplink channel multiplied by a second factor,
wherein the RA-RNTI is calculated based on a frequency domain index of the physical uplink channel multiplied by a third factor and a time domain index of the physical uplink channel multiplied by a fourth factor; and

using, by the UE apparatus, the identifier for scrambling data in transmission of the PUSCH.

2. The method of claim 1 , wherein the physical uplink channel is the PRACH.

3. The method of claim 1 , wherein the resource unit information comprises at least one of time resource unit information, frequency resource unit information, and sub resource unit information associated with the physical uplink channel.

4. The method of claim 1 , further comprising:
altering, by the UE apparatus, the data for the transmission by the PUSCH, the altering including at least one of a scrambling operation or a masking operation.

5. The method of claim 1 , further comprising:
using the identifier for reception of at least one of a physical downlink control channel (PDCCH) and a physical downlink shared channel (PDSCH) which is altered by a first identifier.

6. The method of claim 1 , the identifier being a first identifier, the method further comprising:
determining a second identifier based on second resource unit information different from the resource unit information; and
using the second identifier for reception of at least one of a physical downlink control channel (PDCCH) and a physical downlink shared channel (PDSCH) which is altered by the first identifier.

7. The method of claim 3 , wherein the time resource unit information pertaining to at least one data resource unit comprises an index representing a system frame, subframe, time slot, mini-slot or OFDM symbol.

8. The method of claim 3 , wherein the frequency resource unit information pertaining to at least one data resource unit comprises an index representing a sub-band, PRB (physical resource block), PRB set, PRG (PRB group), SC (sub-carrier) or BWP (bandwidth part).

9. The method of claim 3 , wherein the sub resource unit information pertaining to at least one data resource unit is representative of a codebook/codeword, sequence, interleaver pattern, mapping pattern, demodulation reference signal, preamble or spatial, power, layer or port domain.

10. The method of claim 1 , wherein the resource unit information associated with the physical uplink channel is explicitly configured or indicated by at least one of a broadcasting channel and a dedicated semi-static channel (RRC).

11. The method of claim 1 , wherein the identifier is a grant-free radio network temporary identifier (GF-RNTI) determined based on the resource unit information for the physical uplink channel.

12. The method of claim 1 , the resource unit information including a preamble sequence index of the physical uplink channel.

13. A user equipment (UE) apparatus comprising:
at least one processor;
an RF communication unit; and
a non-transitory computer readable storage medium storing programming, the programming including instructions for execution by the at least one processor to cause the UE apparatus to perform operations including:
obtaining resource unit information for a physical uplink channel, wherein the physical uplink channel is a physical uplink shared channel (PUSCH) or a physical random access channel (PRACH);
using at least the resource unit information to calculate a value of an identifier, the using the at least the resource unit information comprising:
calculating the value of the identifier based on a sum of (1) a random access radio network temporary identifier (RA-RNTI) multiplied by a first factor and (2) a preamble index of the physical uplink channel multiplied by a second factor,
wherein the RA-RNTI is calculated based on a frequency domain index of the physical uplink channel multiplied by a third factor and a time domain index of the physical uplink channel multiplied by a fourth factor; and
using the identifier for scrambling data in transmission of the PUSCH.

14. The UE apparatus of claim 13 , wherein the physical uplink channel is the PRACH.

15. The UE apparatus of claim 13 , wherein the resource unit information comprises at least one of time resource unit information, frequency resource unit information, and sub resource unit information associated with the physical uplink channel.

16. The UE apparatus of claim 13 , the operations further comprising:
altering the data for the transmission by the PUSCH, altering the data including at least one of a scrambling operation or a masking operation.

17. The UE apparatus of claim 13 , the operations further comprising:
using the identifier for reception of at least one of a physical downlink control channel (PDCCH) and a physical downlink shared channel (PDSCH) which is altered by a first identifier.

18. The UE apparatus of claim 13 , the identifier being a first identifier, the operations further comprising:
determining a second identifier based on second resource unit information different from the resource unit information; and
using the second identifier for reception of at least one of a physical downlink control channel (PDCCH) and a physical downlink shared channel (PDSCH) which is altered by the first identifier.

19. The UE apparatus of claim 15 , wherein the time resource unit information pertaining to at least one data resource unit comprises an index representing a system frame, subframe, time slot, mini-slot or OFDM symbol.

20. The UE apparatus of claim 15 , wherein the frequency resource unit information pertaining to at least one data resource unit comprises an index representing a sub-band, PRB (physical resource block), PRB set, PRG (PRB group), SC (sub-carrier) or BWP (bandwidth part).

21. The UE apparatus of claim 15 , wherein the sub resource unit information pertaining to at least one data resource unit is representative of a codebook/codeword, sequence, interleaver pattern, mapping pattern, demodulation reference signal, preamble or spatial, power, layer or port domain.

22. The UE apparatus of claim 13 , wherein the resource unit information associated with the physical uplink channel is explicitly configured or indicated by at least one of a broadcasting channel and a dedicated semi-static channel (RRC).

23. The UE apparatus of claim 13 , wherein the identifier is a grant-free radio network temporary identifier (GF-RNTI) determined based on the resource unit information for the physical uplink channel.

24. A non-transitory computer-readable medium having instructions stored thereon that, when executed by a user equipment (UE) apparatus, cause the UE apparatus to perform operations, the operations comprising:
obtaining resource unit information for a physical uplink channel, wherein the physical uplink ch

Assignees

• Huawei Tech Co Ltd

Inventors

• Gong Zhengwei
• Baligh Mohammadhadi
• Cao Yu

Classifications

• H04W74/006 Primary

  in the downlink, i.e. towards the terminal · CPC title

• H04W74/0833 Primary

  Random access procedures, e.g. with 4-step access · CPC title

• H04W72/23

  in the downlink direction of a wireless link, i.e. towards a terminal · CPC title