Frequency domain resource allocation for interlaced transmission

Patent metadata

Field	Value
Publication number	US-12501320-B2
Application number	US-202017624184-A
Country	US
Kind code	B2
Filing date	Jul 1, 2020
Priority date	Jul 3, 2019
Publication date	Dec 16, 2025
Grant date	Dec 16, 2025

Abstract

Systems and methods are disclosed herein that relate to frequency domain resource allocation for interlaced transmission. Embodiments of a method performed by a wireless device are disclosed. In one embodiment, a method performed by a wireless device comprises receiving a reserved resource indicator that indicates an uplink reserved resource pattern. The uplink reserved resource pattern defines at least which subset of uplink Physical Resource Blocks (PRBs) from among a set of allocated uplink PRBs are not available for uplink transmission. In this manner, a low overhead, flexible frequency domain resource allocation scheme for partial interlace transmission is provided.

First claim

What is claimed is:

1 . A method performed by a wireless device, the method comprising:
receiving a reserved resource indicator that indicates an uplink reserved resource pattern, wherein the uplink reserved resource pattern defines at least which subset of uplink Physical Resource Blocks, PRBs, from among a set of allocated uplink PRBs are not available for uplink transmission; and receiving a frequency domain interlace allocation for the uplink transmission, wherein the frequency domain interlace allocation comprises an interlace indicator that indicates the set of allocated uplink PRBs; wherein the reserved resource indicator indicates resources from among a nominal PRB assignment are not available for uplink transmission; M interlaces are defined for a bandwidth part or carrier bandwidth on which the uplink transmission is allocated, where M>1; and the bandwidth part or carrier bandwidth on which the uplink transmission is allocated is divided, in the frequency domain, into one or more Interlace Block Groups, IBGs.

2 . The method of claim 1 further comprising transmitting an uplink transmission to at least a subset of the set of allocated uplink PRBs in accordance with the reserved resource indicator.

3 . The method of claim 1 wherein: the frequency domain interlace allocation further comprises an IBG indicator that indicates, from among the one or more IBGs of the bandwidth part or carrier bandwidth, at least one IBG in which the set of allocated uplink PRBs are allocated for the uplink transmission; and
the interlace indicator indicates which interlaces within the at least one IBG indicated by the IBG indicator are allocated for the uplink transmission.

4 . The method of claim 1 wherein each IBG consists of up to K Interlace Blocks, IBs, where K is an integer value that is greater than or equal to 1.

5 . The method of claim 1 wherein each IBG consists of at least K Interlace Blocks, IBs, where K is an integer value that is greater than or equal to 1.

6 . The method of claim 4 wherein each IB consists of up to M contiguous PRBs in the frequency domain.

7 . The method of claim 4 wherein each IB consists of at least M contiguous PRBs in the frequency domain.

8 . The method of claim 4 wherein the interlace indicator indicates, from among the M interlaces, one or more interlaces that are allocated for the uplink transmission within the K IBs in at least one of the one or more IBGs.

9 . The method of claim 1 wherein receiving the frequency domain interlace allocation for the transmission comprises receiving the interlace indicator via: a. Downlink Control Information, DCI, signaling; b. Medium Access Control, MAC, Control Element, CE, signaling; c. higher layer signaling, or d. a combination of any two or more of (a)-(c).

10 . The method of claim 1 wherein the uplink transmission is one or more of: a Physical Uplink Shared Channel, PUSCH, transmission; a Physical Uplink Control Channel, PUCCH, transmission; a Sounding Reference Signal, SRS, transmission; and a Physical Random Access Channel, PRACH, transmission.

11 . The method of claim 1 wherein receiving the reserved resource indicator comprises receiving the reserved resource indicator via: dynamic signaling, or semi-static signaling, or a combination of dynamic signaling and semi-static signaling.

12 . The method of claim 1 wherein receiving the reserved resource indicator comprises receiving the reserved resource indicator via DCI, where the DCI is a DCI used for scheduling uplink resources.

13 . The method of claim 12 , wherein the scheduled uplink resources are for: a. a PUSCH transmission, b. a PUCCH transmission, c. a SRS transmission, or d. a combination of any two or more of (a)-(c).

14 . The method of claim 1 wherein receiving the reserved resource indicator comprises receiving the reserved resource indicator via semi-static signaling and the uplink transmission is not scheduled by DCI.

15 . A method performed by a base station, the method comprising:
transmitting to a wireless device, a reserved resource indicator that indicates an uplink reserved resource pattern, wherein the uplink reserved resource pattern defines at least which subset of uplink Physical Resource Blocks, PRBs, from among a set of allocated uplink PRBs are not available for uplink transmission; and transmitting a frequency domain interlace allocation for the uplink transmission, wherein the frequency domain interlace allocation comprises an interlace indicator that indicates the set of allocated uplink PRBs; wherein the reserved resource indicator indicates resources from among a nominal PRB assignment are not available for uplink transmission; M interlaces are defined for a bandwidth part or carrier bandwidth on which the uplink transmission is allocated, where M>1; and the bandwidth part or carrier bandwidth on which the uplink transmission is allocated is divided, in the frequency domain, into one or more Interlace Block Groups, IBGs.

16 . A wireless device comprising: one or more transmitters; one or more receivers; and processing circuitry associated with the one or more transmitters and the one or more receivers, the processing circuitry configured to cause the wireless device to:
receive a reserved resource indicator that indicates an uplink reserved resource pattern, wherein the uplink reserved resource pattern defines at least which subset of uplink Physical Resource Blocks, PRBs, from among a set of allocated uplink PRBs are not available for uplink transmission; and receive a frequency domain interlace allocation for the uplink transmission, wherein the frequency domain interlace allocation comprises an interlace indicator that indicates the set of allocated uplink PRBs; wherein the reserved resource indicator indicates resources from among a nominal PRB assignment are not available for uplink transmission; M interlaces are defined for a bandwidth part or carrier bandwidth on which the uplink transmission is allocated, where M>1; and the bandwidth part or carrier bandwidth on which the uplink transmission is allocated is divided, in the frequency domain, into one or more Interlace Block Groups, IBGs.

17 . The wireless device of claim 16 wherein the processing circuitry is further configured to cause the wireless device to transmit an uplink transmission to at least a subset of the set of allocated uplink PRBs in accordance with the reserved resource indicator.

Assignees

• Ericsson Telefon Ab L M

Inventors

• Grant Stephen
• Cheng Jung-Fu
• Do Tai
• Karaki Reem
• Rune Johan

Classifications

• H04L5/0092

  Indication of how the channel is divided · CPC title

• H04L5/0044

  Allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH · CPC title

• H04W72/23

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

• H04W80/02

  Data link layer protocols · CPC title

• H04W72/0453

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