Analysis · 6G · part 6 of 8
What pays before the freeze
What a carrier can sell between now and the Release 21 freeze in December 2028 is 5G features on spectrum it already holds. Ten capabilities that appear on 6G roadmaps are scored here on three tests: whether the specification is frozen, whether the band is licensed and whether a device is on sale. Five pass today, and all five are 5G features. Two wait for the upper C-band at the end of 2030, and three wait for Release 21 and WRC-27. Nothing on the list earns as 6G before 2030.
Sources: Every figure in this part is carried from part 1, part 2, part 3, part 4 and part 5, each of which carries its primary and second sources, and from the direct-to-device series where noted. No new primary source is introduced.
A capability earns nothing until release, band and device all exist
Before a capability earns anything, three things have to be true at once: the specification that defines it is frozen, the spectrum it runs in is licensed, and a device that uses it is on sale. Different bodies control each, so they slip independently, and each has a date on the record (Exhibit 1).
3GPP publishes its dates, so the specifications are the easiest to check. Release 17 froze in March 2022, Release 18 in March 2024 and Release 19 in December 2025. Release 20 is projected to freeze in March 2027. The one that matters for 6G is Release 21, the first to carry normative 6G specifications. It is planned to freeze in December 2028, with its code freeze three months later in March 2029 (part 1).
Spectrum is slower, and its dates come from a statute, an FCC order and a conference rather than from one body. The bands a carrier holds today, the C-band and 3.45 GHz, have been licensed since 2021 and 2022, so for them this dependency is already met. The upper C-band is next. Auction 115 opens for bidding on 27 April 2027, but the clearing comes after the sale. Terrestrial service may not begin until 31 December 2030 in the top 75 areas, and 1 July 2031 everywhere else. Above 4.2 GHz nothing is dated at all. An NTIA report is due in December 2026, WRC-27 meets in Shanghai from 18 October to 12 November 2027, and the statute then allows an American auction as late as July 2033 (part 2).
Devices are the dependency most often overlooked, and the only evidence accepted here is a published commercial launch. T-Mobile put the first commercial RedCap device in North America on sale on 17 October 2024, and AT&T declared nationwide RedCap coverage on 16 July 2025. Direct-to-device phones are in service, as the direct-to-device series records. The upper C-band is the exception, because its device date is a rule rather than a launch. Note 12 to TS 38.101-1 restricts band n77 in the United States to 3450 to 3550 and 3700 to 3980 MHz, so no American handset is specified for 3.98 to 4.14 GHz today. The FCC’s order requires every new device sold for the band to cover it from 31 December 2030, which gives the handsets four years to catch up.
Source: 3GPP Release 20 and Release 21 pages, timeline agreed at TSGs#112 in June 2026; FCC 26-46 and DA 26-769 (July 2026); NSPM-8 (19 December 2025); ITU WRC-27 page; Qualcomm, Nokia and Ericsson statements of 2026, as carried in parts 1 and 2 (Compiled). Note: 3GPP dates are its own current plan; the conference and auction dates are scheduled.
The five that earn today are all 5G features
Scored on those three dependencies, the ten fall into three groups. Five earn now; two more are dated, one by its spectrum and one by its devices; and the last three have nothing to build to until Release 21 freezes (Exhibit 2).
Exists todayDated, or in progress with a meeting setNo date
Source: 3GPP release pages and the Release 19 work items named in part 3; FCC 26-46 and DA 26-769; TS 38.101-1 note 12; operator launch releases as cited in parts 2 and 3 (Compiled). Note: the energy row counts vendor software on installed radios as the device.
The five that earn now are all 5G features, and most are old ones: fixed wireless, private networks and direct-to-device come from Releases 15, 16 and 17. Fixed wireless has the hardest numbers. T-Mobile reported 8.45 million 5G broadband customers at the end of 2025, Verizon 6.2 million fixed wireless subscribers at mid-2026, and list prices run from $35 to $70 a month. Those two counts are the only hard evidence we have found of what mid-band capacity sells for. None of the five appears on a 6G slide under its own name, yet they are what a carrier earns with across the whole window the 6G plan covers.
The energy row is the nearest any of the five comes to the AI-native story that part 5 examines. Release 18 introduced network energy saving and Release 19 enhanced it, in work item RP-240170. What a carrier buys is software for radios it already owns. No new band is involved and no architecture changes, so vendor software counts as the device.
Two candidates are dated and three wait for Release 21
A capability earns on the date its last dependency arrives. For the upper C-band that is the licence and the clearing; for XR it is a device and a service; for the last three rows it is the specification itself, which does not yet exist (Exhibit 3).
| Capability | Release it needs | Spectrum it needs | Device | Earliest revenue |
|---|---|---|---|---|
| Fixed wireless access on mid-band | Rel-15/16 | C-band, 3.45 GHz: licensed | Customer equipment on sale | Now |
| RedCap devices and wearables | Rel-17; eRedCap Rel-18 | Existing bands | Commercial since Oct 2024; nationwide on two carriers | Now |
| Direct-to-device supplement | Rel-17 NTN, or proprietary | Leased PCS G block and 700 MHz | Phones in service | Now; see the direct-to-device series |
| Private networks and neutral host | Rel-15/16 | CBRS, licensed and shared | On sale | Now |
| Network energy saving, AI-assisted | Rel-18; Rel-19 enhancements (RP-240170) | None new | Vendor software | Now to 2026 |
| Immersive and XR | Rel-18; Rel-19 phase 3 (RP-240791) | Mid-band, licensed | Partial; no operator service published | 2026 onward, device-bound |
| Mid-band capacity, upper C-band | Rel-15 (band n77) | 3.98 to 4.14 GHz: Auction 115 from Apr 2027 | Radios built for n77; US handsets need note 12 lifted, which the order requires by the service date | 31 Dec 2030, top 75 areas |
| Integrated sensing | Rel-21; Rel-20 specifies base-station drone detection only | Under study; 7 to 24 GHz channel model | None | 2029 onward |
| 6G radio at 7 GHz | Rel-21 | 7.125 to 7.4 GHz: NTIA report, WRC-27, then auction by 2033 | None | 2030 onward |
| Sub-millisecond, centimetre positioning | Rel-21, above the draft minimum requirement | Dependent on the above | None | 2030 onward |
Bold rows have all three dependencies met or dated. The 2029 and 2030 dates are the Release 21 freeze plus the time a specification needs to become a product; part 1’s base rate would move them later. The last row’s targets are above the draft IMT-2030 minimum of 1 ms that part 3 reports, so a Release 21 radio that meets the minimum need not deliver them.
Source: parts 1 to 5 of this series and the direct-to-device series for the satellite row (Compiled). Note: Rel-20’s sensing work item, RP-261566, covers base-station monostatic drone detection with no device impact; no regulator has ruled on whether a mobile licence covers sensing.
The upper C-band is the simplest case. The band lies inside n77, so the radios and the release both exist. A carrier lacks the licence, which Auction 115 sells from April 2027, and the clearing, which does not allow service in the top 75 areas until 31 December 2030. The handset base is missing too, and the order requires it by the same date. XR is the opposite case: its specifications are frozen and its band is licensed, but no operator has yet published a device and a service for sale.
The three rows that wait for Release 21 each wait on something different. Sensing has a channel-model study from Release 19 and, in Release 20, a work item that covers base-station drone detection and nothing else. The 7 GHz radio has a federal report, a conference decision and an auction ahead of it, in that order, and the statute gives the auction until July 2033. The sub-millisecond and centimetre targets depend on both of the others, and they are finer than the 1 ms minimum the draft IMT-2030 requirements ask for, so a radio that meets the minimum need not deliver them. The earliest any of the three has a specification to build to is March 2029, with a radio to follow, and every 6G revenue case inside the decade falls after that.
The rule only ever moves a date later
The rule is simple: a capability earns on the day its last dependency arrives, and not before. Applied to the table, the earliest anything earns as 6G is 2030. New mid-band capacity earns from 31 December 2030. Everything a carrier earns before then is 5G-Advanced, on bands it already holds.
The rule works in one direction only. Nothing earns before its last dependency, so no date can come forward; a date can only go back, and it does so every time a dependency slips. In the 5G cycle that happened to four releases in five (Exhibit 4). Release 15’s late drop and Release 18 each lost three months at a December plenary. Release 16 moved twice, six months in all. Release 17 also moved twice, in March and December 2020, and froze on 18 March 2022, nine months after the date it was first scoped to. Only Release 19 held the date it had published, September 2025, set in April 2024.
Source: 3GPP news items of December 2018, March 2020, December 2020 and December 2022 and the 3GPP releases page, as carried in part 1 (Filed). Note: Release 16 moved twice by three months; Release 17 by three and then six; Release 19 froze on its published date at SA#109.
Applied to a roadmap, the rule produces two lines. The 5G-Advanced line starts now. The 6G line starts around 2030, and on the last cycle’s record it starts later rather than earlier. The next three years of revenue fall in the gap between the two, and the first six rows of Exhibit 3 fill it.
A roadmap should carry two lines and a capacity purchase between them
Each question on our 6G roadmap decision page has a specific answer in the table. The plan itself is two lines with one purchase between them (Exhibit 5).
| Line | Earliest date | Paid from | Checked against |
|---|---|---|---|
| 5G-Advanced: rows 1 to 6 of Exhibit 3, fixed wireless, RedCap, direct-to-device, private networks, energy saving and XR | Now; XR when a device and a service exist | Existing capex: $46 billion to $48 billion a year across the three national carriers in 2023 to 2025 | Revenue per band held; competitors’ published services |
| Capacity: row 7, the upper C-band | 31 Dec 2030, top 75 areas; 1 Jul 2031 elsewhere | Auction 115 bids from April 2027: $36.0 billion to $46.4 billion for 160 MHz at the two recent mid-band prices | The handset base for 3.98 to 4.14 GHz, built before 2030 |
| 6G: rows 8 to 10, sensing, the 7 GHz radio and sub-millisecond positioning | 2030 at the earliest, after a March 2029 code freeze | The capex that follows the auction; the three carriers had $33.8 billion left after capex and dividends in FY2025 | A frozen specification and a device, neither of which exists |
The capex, auction and cash figures are the three national carriers’ filed values from part 4. The auction range applies the C-band price of $0.852 and the 3.45 GHz price of $0.662 per MHz-POP to 160 MHz.
Source: parts 1 to 4 of this series: 3GPP release pages; FCC 26-46 and DA 26-769; Forms 10-K for FY2023 to FY2025; FCC DA 21-207 and DA 22-39 (Compiled and Calculated).
Each question on the decision page has a place to look. The milestones are in part 1’s table. The capabilities that carry a business case before the freeze are the first six rows of Exhibit 3, and the spectrum pipeline and its dates are in part 2. The dependencies that gate each bet are the three columns of Exhibit 2. The indicators that would move the timeline are the subject of part 7.
A roadmap should not say that any row below the sixth earns before 2030. Nothing on the record supports it, and a plan that depends on it rests on the kind of date that held once in five in the last cycle.
Terms used
- Release and freeze. A 3GPP release is a numbered set of specifications; its Stage 3 freeze is the point after which the radio protocols stop changing, and is what vendors build to. The later code freeze fixes the machine-readable encodings.
- Band n77. 3GPP’s name for 3.3 to 4.2 GHz as a time-division band. The C-band of 2021 and the upper C-band of 2027 are both inside it; a footnote restricts the American part of it to 3980 MHz until changed.
- RedCap. Reduced capability, a Release 17 device class with fewer antennas and narrower bandwidth, for wearables and sensors. eRedCap in Release 18 caps the peak rate at 10 Mbit/s to cut cost further.
- Partial economic area. One of 416 licence areas the FCC uses for mid-band auctions. The top 75 by population held 72.1% of Americans at the 2020 census and are the first to be cleared and served.
- Customer equipment. The fixed wireless router or outdoor unit a subscriber installs; for the fixed wireless row it is the device on sale.
Implications
Carrier strategist
Build the plan in two lines. Date the 5G-Advanced line now, fund it from existing capex and measure it in revenue per band you hold. Date the 6G line 2030 at the earliest. Put the upper C-band between them as a capacity purchase, because the licence arrives in 2027 and service in 2030 whatever Release 21 does. Start the handset work before the April 2027 auction rather than after it, since no American handset is specified for the band today and the order requires one by the service date.
Investor
When a carrier claims 6G revenue, ask which row of Exhibit 3 it belongs to. The first six rows you can check against competitors’ published services and prices. The last three have no device, no licence and no frozen specification, so a figure attached to any of them before 2030 has nothing on the record behind it and should be treated as an assumption.
Vendor
Sell what is in the first six rows, on radios already in the field, because that is where carrier revenue falls before 2030. The 7 GHz radio has a date, and it comes after WRC-27 in Shanghai and after an auction. The n77 handset change has a date too, 31 December 2030. The work for it belongs before the April 2027 auction, because a carrier bidding for the band will want to know the phones are coming.
Method and limits
How this was built
Each candidate is scored on three things only. The first is the release, meaning the earliest 3GPP release whose specifications define the capability, taken from part 3. The second is the band it needs, and whether that spectrum is licensed, dated or still under study, taken from part 2. The third is the device, meaning a commercial product an operator has publicly launched, taken from part 3 and from the direct-to-device series. The earliest revenue date is then the latest of the three. The capex, auction and cash figures in Exhibit 5 are the three national carriers’ filed values from part 4. The months in Exhibit 4 are counted from the first published freeze date to the actual one, as part 1 records them.
What it does not show
A table sorted by dependency shows when a capability can earn, not how much. Device availability is judged on published commercial launches, so a feature quietly in use somewhere will be placed later than it deserves. The upper C-band dates are the transition deadlines in the FCC’s order, and the auction or the clearing could move them. The three 6G rows use the Release 21 date as 3GPP publishes it, without the margin part 1 argues for, so those rows are optimistic. Everything here is the record as it stood on 7 October 2026, and a plenary or a public notice can change it.
Data as of: the dates in parts 1 to 5, as read and checked 2 Oct 2026 · Method version 1.1.
Found an error? Tell us. Corrections are published on the piece that carried them.
If this is on your desk
Our 6G roadmap needs a business case.
We work this decision through with your team. The first step is a one-day teardown: a 90-minute working session and a written answer two working days later, with the model behind it yours to keep.