Frequency hopping in frequency-first mapping for enhanced coverage

文档序号:1591064 发布日期:2020-01-03 浏览:9次 中文

阅读说明:本技术 用于增强型覆盖的频率优先映射中的跳频 (Frequency hopping in frequency-first mapping for enhanced coverage ) 是由 杨阳 A·马诺拉克斯 J·孙 于 2018-05-15 设计创作,主要内容包括:本公开的某些方面涉及用于将经调制的码元映射到物理资源的方法和装置。本文描述的映射可以导致时间分集和频率分集两者。例如,一种用于无线通信的方法可以包括:在调度的时间单元内将码块的正交调幅(QAM)码元交替地映射到频率资源,其中该映射包括频率优先映射,其中该码块的各码元被交替地映射到第一正交频分复用(OFDM)码元集合中的该频率资源的第一子集,然后被映射到第二OFDM码元集合中的该频率资源的第二子集;以及基于该映射来传送该码块。(Certain aspects of the present disclosure relate to methods and apparatus for mapping modulated symbols to physical resources. The mapping described herein may result in both time diversity and frequency diversity. For example, a method for wireless communication may comprise: alternately mapping Quadrature Amplitude Modulation (QAM) symbols of a code block to frequency resources within a scheduled time unit, wherein the mapping comprises a frequency-first mapping in which symbols of the code block are alternately mapped to a first subset of the frequency resources in a first set of Orthogonal Frequency Division Multiplexing (OFDM) symbols and then to a second subset of the frequency resources in a second set of OFDM symbols; and transmitting the code block based on the mapping.)

1. A method for wireless communication, comprising:

alternately mapping Quadrature Amplitude Modulation (QAM) symbols of a code block to frequency resources within a scheduled time unit, wherein the mapping comprises a frequency-first mapping in which symbols of the code block are alternately mapped to a first subset of the frequency resources in a first set of Orthogonal Frequency Division Multiplexing (OFDM) symbols and then to a second subset of the frequency resources in a second set of OFDM symbols; and

transmitting the code block based on the mapping.

2. The method of claim 1, wherein the first set of OFDM symbols and second set of OFDM symbols are non-overlapping in time.

3. The method of claim 1, wherein the first subset of the frequency resources and the second subset of the frequency resources are non-overlapping in frequency.

4. The method of claim 3, wherein the first subset of the frequency resources and the second subset of the frequency resources are separated in frequency by a gap.

5. The method of claim 1, wherein:

using a first interleaving mode when mapping to the first subset of the frequency resources in the first set of OFDM symbols; and

using a second interleaving mode when mapping to the second subset of the frequency resources in the second set of OFDM symbols.

6. The method of claim 1, wherein:

the scheduled time unit spans 2K OFDM symbols;

each of the first set of OFDM symbols and the second set of OFDM symbols includes K OFDM symbols; and

the mapping continues to fill the second subset of the frequency resources in a K +1 th OFDM symbol located in the second set of OFDM symbols after filling the first subset of the frequency resources in a first OFDM symbol located in the first set of OFDM symbols.

7. The method of claim 6, wherein:

the mapping continues to fill the first subset of the frequency resources in a second OFDM symbol in the first set of OFDM symbols after filling the second subset of the frequency resources in the K +1 OFDM symbol in the second set of OFDM symbols.

8. A method for wireless communication, comprising:

receiving a code block; and

processing the codeblock based on mapping Quadrature Amplitude Modulation (QAM) symbols of the codeblock to frequency resources within scheduled time units, wherein the mapping comprises a frequency-first mapping in which symbols of the codeblock are alternately mapped to a first subset of the frequency resources in a first set of Orthogonal Frequency Division Multiplexing (OFDM) symbols and then to a second subset of the frequency resources in a second set of OFDM symbols.

9. The method of claim 8, wherein the first set of OFDM symbols and second set of OFDM symbols are non-overlapping in time.

10. The method of claim 8, wherein the first subset of the frequency resources and the second subset of the frequency resources are non-overlapping in frequency.

11. The method of claim 10, wherein the first subset of the frequency resources and the second subset of the frequency resources are separated in frequency by a gap.

12. The method of claim 8, wherein:

using a first interleaving mode when mapping to the first subset of the frequency resources in the first set of OFDM symbols; and

using a second interleaving mode when mapping to the second subset of the frequency resources in the second set of OFDM symbols.

13. The method of claim 8, wherein:

the scheduled time unit spans 2K OFDM symbols;

each of the first set of OFDM symbols and the second set of OFDM symbols includes K OFDM symbols; and

the mapping continues to fill the second subset of the frequency resources in a K +1 th OFDM symbol located in the second set of OFDM symbols after filling the first subset of the frequency resources in a first OFDM symbol located in the first set of OFDM symbols.

14. The method of claim 13, wherein:

the mapping continues to fill the first subset of the frequency resources in a second OFDM symbol in the first set of OFDM symbols after filling the second subset of the frequency resources in the K +1 OFDM symbol in the second set of OFDM symbols.

15. An apparatus for wireless communication, comprising:

means for alternately mapping Quadrature Amplitude Modulation (QAM) symbols of a codeblock to frequency resources within a scheduled time unit, wherein the mapping comprises a frequency-first mapping in which symbols of the codeblock are alternately mapped to a first subset of the frequency resources in a first set of Orthogonal Frequency Division Multiplexing (OFDM) symbols and then to a second subset of the frequency resources in a second set of OFDM symbols; and

means for transmitting the code block based on the mapping.

16. The apparatus of claim 15, wherein the first set of OFDM symbols and second set of OFDM symbols are non-overlapping in time.

17. The apparatus of claim 15, wherein the first subset of the frequency resources and the second subset of the frequency resources are non-overlapping in frequency.

18. The apparatus of claim 17, wherein the first subset of the frequency resources and the second subset of the frequency resources are separated in frequency by a gap.

19. The apparatus of claim 15, wherein:

using a first interleaving mode when mapping to the first subset of the frequency resources in the first set of OFDM symbols; and

using a second interleaving mode when mapping to the second subset of the frequency resources in the second set of OFDM symbols.

20. The apparatus of claim 15, wherein:

the scheduled time unit spans 2K OFDM symbols;

each of the first set of OFDM symbols and the second set of OFDM symbols includes K OFDM symbols; and

the mapping continues to fill the second subset of the frequency resources in a K +1 th OFDM symbol located in the second set of OFDM symbols after filling the first subset of the frequency resources in a first OFDM symbol located in the first set of OFDM symbols.

21. The apparatus of claim 20, wherein:

the mapping continues to fill the first subset of the frequency resources in a second OFDM symbol in the first set of OFDM symbols after filling the second subset of the frequency resources in the K +1 OFDM symbol in the second set of OFDM symbols.

22. An apparatus for wireless communication, comprising:

means for receiving a code block; and

means for processing the code block based on mapping Quadrature Amplitude Modulation (QAM) symbols of the code block to frequency resources within a scheduled time unit, wherein the mapping comprises a frequency-first mapping in which symbols of the code block are alternately mapped to a first subset of the frequency resources in a first set of Orthogonal Frequency Division Multiplexing (OFDM) symbols and then to a second subset of the frequency resources in a second set of OFDM symbols.

23. The apparatus of claim 22, wherein the first set of OFDM symbols and second set of OFDM symbols are non-overlapping in time.

24. The apparatus of claim 22, wherein the first subset of the frequency resources and the second subset of the frequency resources are non-overlapping in frequency.

25. The apparatus of claim 24, wherein the first subset of the frequency resources and the second subset of the frequency resources are separated in frequency by a gap.

26. The apparatus of claim 22, wherein:

using a first interleaving mode when mapping to the first subset of the frequency resources in the first set of OFDM symbols; and

using a second interleaving mode when mapping to the second subset of the frequency resources in the second set of OFDM symbols.

27. The apparatus of claim 22, wherein:

the scheduled time unit spans 2K OFDM symbols;

each of the first set of OFDM symbols and the second set of OFDM symbols includes K OFDM symbols; and

the mapping continues to fill the second subset of the frequency resources in a K +1 th OFDM symbol located in the second set of OFDM symbols after filling the first subset of the frequency resources in a first OFDM symbol located in the first set of OFDM symbols.

28. The apparatus of claim 27, wherein:

the mapping continues to fill the first subset of the frequency resources in a second OFDM symbol in the first set of OFDM symbols after filling the second subset of the frequency resources in the K +1 OFDM symbol in the second set of OFDM symbols.

Background

FIELD OF THE DISCLOSURE

The present disclosure relates generally to communication systems, and more particularly, to methods and apparatus for frequency hopping in a map using a communication system operating in accordance with a New Radio (NR) technology.

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