Sequence-based short-physical uplink control channel (PUCCH) and physical random access channel (PRACH) design

Patent metadata

Field	Value
Publication number	US-10575336-B2
Application number	US-201816032517-A
Country	US
Kind code	B2
Filing date	Jul 11, 2018
Priority date	Aug 2, 2017
Publication date	Feb 25, 2020
Grant date	Feb 25, 2020

Abstract

Wireless communications systems and methods related to communicating a sequence-based signal in a frequency spectrum are provided. A first wireless communication device obtains a configuration for communicating a sequence-based signal in the frequency spectrum. The configuration indicates resources in a frequency spectrum and a frequency distribution mode of the resources. The first wireless communication device communicates the sequence-based signal with a second wireless communication device in the frequency spectrum based on the configuration. The sequence-based signal includes at least one of a physical uplink control channel (PUCCH) signal or a physical random access channel (PRACH) signal. The frequency distribution mode indicates at least one of a frequency interlaced structure, a frequency comb structure, or a frequency mini-interlaced structure.

First claim

What is claimed is:

1. A method of wireless communication, comprising:
selecting, by a first wireless communication device, a first set of resources from multiple sets of resources based on a transmission parameter, wherein resources in each set of the multiple sets of resources are spaced apart from each other by at least one other resource in a frequency spectrum, and wherein a resource in the first set of resources and a resource in a second set of resources of the multiple sets of resources include different number of subcarriers; and
communicating, by the first wireless communication device with a second wireless communication device, a sequence-based signal in the first set of resources.

2. The method of claim 1 , wherein the selecting is based on the transmission parameter including at least one of:
a power spectrum density (PSD) parameter of the frequency spectrum;
a transmit power utilization factor of the second wireless communication device;
a subcarrier spacing used for communicating between the first wireless communication device and the second wireless communication device; or
a transmit power headroom of the second wireless communication device.

3. The method of claim 1 , wherein the communicating includes communicating at least one of:
a physical uplink control channel (PUCCH) signal including a sequence using the first set of resources; or
a physical random access channel (PRACH) signal including a sequence using the first set of resources.

4. The method of claim 1 , further comprising communicating, by the first wireless communication device with the second wireless communication device, a configuration indicating the first set of resources.

5. The method of claim 1 , further comprising communicating, by the first wireless communication device with the second wireless communication device, a configuration indicating the multiple sets of resources.

6. The method of claim 1 , wherein the communicating is based on a code-division multiplexing with another sequence-based signal transmitted by a third wireless communication device using the same first set of resources.

7. The method of claim 1 , wherein the first set of resources include a plurality of sets of contiguous subcarriers spaced apart from each other by at least one other set of contiguous subcarriers.

8. The method of claim 7 , wherein each set of contiguous subcarriers of the plurality of sets of contiguous subcarriers corresponds to at least one of:
a resource block in the frequency spectrum;
a portion of one of a plurality of resource blocks distributed across the frequency spectrum; or
a portion of one of a plurality of contiguous resource blocks in the frequency spectrum.

9. The method of claim 1 , wherein the first set of resources include a plurality of subcarriers spaced apart from each other by at least one other subcarrier in the frequency spectrum.

10. The method of claim 9 , wherein the plurality of subcarriers is within at least one of:
a plurality of resource blocks distributed across the frequency spectrum; or
a plurality of contiguous resource blocks in the frequency spectrum.

11. The method of claim 9 , wherein the plurality of subcarriers is within a portion of the frequency spectrum based on a power spectral density (PSD) parameter of the frequency spectrum.

12. The method of claim 9 , wherein the first set of resources include another plurality of subcarriers interlaces with the plurality of subcarriers in the frequency spectrum, wherein the plurality of subcarriers is for communicating first information in the frequency spectrum, wherein the another plurality of subcarriers is for communicating second information in the frequency spectrum, and wherein the communicating includes:
communicating a first sequence representing the first information using the plurality of subcarriers; or
communicating a second sequence representing the second information using the another plurality of subcarriers.

13. An apparatus comprising:
a processor configured to select a first set of resources from multiple sets of resources based on a transmission parameter, wherein resources in each set of the multiple sets of resources are spaced apart from each other by at least one other resource in a frequency spectrum, and wherein a resource in the first set of resources and a resource in a second set of resources of the multiple sets of resources include different number of subcarriers; and
a transceiver configured to communicate, with a second wireless communication device, a sequence-based signal in the first set of resources.

14. The apparatus of claim 13 , wherein the transmission parameter includes at least one of:
a power spectrum density (PSD) parameter of the frequency spectrum;
a transmit power utilization factor of the second wireless communication device;
a subcarrier spacing used for communicating between the apparatus and the second wireless communication device; or
a transmit power headroom of the second wireless communication device.

15. The apparatus of claim 13 , wherein the transceiver is further configured to communicate the sequence-based signal by communicating at least one of:
a physical uplink control channel (PUCCH) signal including a sequence using the first set of resources; or
a physical random access channel (PRACH) signal including a sequence using the first set of resources.

16. The apparatus of claim 13 , wherein the transceiver is further configured to:
communicate, with the second wireless communication device, a configuration indicating the first set of resources.

17. The apparatus of claim 13 , wherein the transceiver is further configured to:
communicate, with the second wireless communication device, a configuration indicating the multiple sets of resources.

18. The apparatus of claim 13 , wherein the transceiver is further configured to communicate the sequence-based signal based on a code-division multiplexing with another sequence-based signal transmitted by a third wireless communication device using the same first set of resources.

19. The apparatus of claim 13 , wherein the first set of resources include a plurality of sets of contiguous subcarriers spaced apart from each other by at least one other set of contiguous subcarriers.

20. The apparatus of claim 19 , wherein each set of contiguous subcarriers of the plurality of sets of contiguous subcarriers corresponds to at least one of:
a resource block in the frequency spectrum;
a portion of one of a plurality of resource blocks distributed across the frequency spectrum; or
a portion of one of a plurality of contiguous resource blocks in the frequency spectrum.

21. The apparatus of claim 13 , wherein the first set of resources includes a plurality of subcarriers spaced apart from each other by at least one other subcarrier in the frequency spectrum.

22. The apparatus of claim 21 , wherein the plurality of subcarriers is within at least one of:
a plurality of resource blocks distributed across the frequency spectrum; or
a plurality of contiguous resource blocks in the frequency spectrum.

23. The apparatus of claim 21 , wherein the plurality of subcarriers is within a portion of the frequency spectrum based on a power spectral density (PSD) parameter of the frequency spectrum.

24. The apparatus of claim 21 , wherein the first set of resources includes another plurality of subcarriers interlaces with the plurality of subcarriers in

Assignees

• Qualcomm Inc

Inventors

• Zhang Xiaoxia
• Yoo Taesang
• Bhattad Kapil
• Sun Jing
• Luo Tao
• Huang Yi

Classifications

• H04W72/0453

  Resources in frequency domain, e.g. a carrier in FDMA · CPC title

• H04L5/0017

  in which a distinct code is applied, as a temporal sequence, to each frequency · CPC title

• H04L5/0041

  Frequency-non-contiguous · CPC title

• H04L5/0051

  of dedicated pilots, i.e. pilots destined for a single user or terminal · CPC title

• H04L5/0053

  Allocation of signalling, i.e. of overhead other than pilot signals · CPC title