US-12621756-B2 - Radio access technology identifiers

Abstract

Techniques and apparatuses are described for radio access technology identifiers. In aspects, a base station receives air interface resource prospective usage information associated with communications over a first wireless link of at least two wireless links that use different Radio Access Technologies (RATs). The base station then allocates the sharable air interface resource between the at least two wireless links by analyzing the air interface resource prospective usage information. In aspects, the base station transmits a RAT-identifier-presence indicator that communicates a presence of a RAT identifier by indicating one or more downlink air interface resources used to transmit the RAT identifier, where the RAT identifier indicates the allocation of the sharable air interface resource between the at least two wireless links. The base station then transmits the RAT identifier using the one or more downlink air interface resources indicated by the RAT-identifier-presence indicator.

Inventors

• Jibing Wang
• Erik Richard Stauffer

Assignees

• GOOGLE LLC

Dates

Publication Date

20260505

Application Date

20210309

Claims (20)

1. 1 . A method performed by a user equipment, UE, for identifying an allocation of a shareable air interface resource between at least two wireless links that are implemented by at least two different Radio Access Technologies (RATs) the method comprising: receiving, from a base station, a radio access technology-identifier-presence indicator (RAT-identifier-presence indicator) that indicates a presence of a RAT identifier by indicating one or more downlink air interface resources used to transmit the RAT identifier, the RAT identifier indicating the allocation of the shareable air interface resource between the at least two different RATs; receiving the RAT identifier according to the one or more downlink air interface resources indicated by the RAT-identifier-presence indicator; identifying, from the RAT identifier, the allocation of the shareable air interface resource between the at least two different RATs; and communicating over the at least two wireless links by processing the shareable air interface resource using the at least two different RATs according to the allocation.
2. 2 . The method as recited in claim 1 , wherein receiving the RAT-identifier-presence indicator further comprises: receiving the RAT-identifier-presence indicator in a broadcast message; or receiving at least a portion of the RAT-identifier-presence indicator in a layer 3 radio resource control (RRC) message.
3. 3 . The method as recited in claim 1 , wherein receiving the RAT identifier further comprises: blind decoding the RAT identifier using a waveform with a fixed coding scheme and fixed modulation scheme that is supported by each of the at least two different RATs.
4. 4 . The method as recited in claim 1 , wherein one or more characteristics of the shareable air interface resource comprise at least one of: an assigned RAT start time; an assigned RAT time duration; an assigned RAT frequency partition; or an assigned RAT carrier frequency.
5. 5 . The method as recited in claim 1 , wherein the shareable air interface resource includes a time duration defined by an air interface resource partitioning scheme of a first RAT of the at least two different RATs, and wherein receiving the RAT identifier further comprises: receiving the RAT identifier at a beginning of the time duration defined by the air interface resource partitioning scheme of the first RAT.
6. 6 . The method as recited in claim 1 further comprising: receiving an updated RAT identifier that indicates a reallocation of the shareable air interface resource from a first RAT of the at least two different RATs to a second RAT of the at least two different RATs; and processing the shareable air interface resource according to the reallocation indicated by the updated RAT identifier.
7. 7 . A method performed by a first base station for communicating an allocation of a shareable air interface resource between at least two wireless links that use at least two different Radio Access Technologies (RATs) the method comprising: receiving, from a second base station, air interface resource prospective usage information associated with communications over a first wireless link of the at least two wireless links; allocating the shareable air interface resource between the at least two wireless links and the at least two different RATs by analyzing the air interface resource prospective usage information; transmitting a RAT-identifier-presence indicator that communicates a presence of a RAT identifier by indicating one or more downlink air interface resources used to transmit the RAT identifier, the RAT identifier indicating the allocation of the shareable air interface resource between the at least two different RATs; and transmitting the RAT identifier using the one or more downlink air interface resources indicated by the RAT-identifier-presence indicator.
8. 8 . The method as recited in claim 7 , wherein transmitting the RAT-identifier-presence indicator further comprises: broadcasting the RAT-identifier-presence indicator in a broadcast message; or transmitting at least a portion of the RAT-identifier-presence indicator in a radio resource control (RRC) message.
9. 9 . The method as recited in claim 7 , wherein transmitting the RAT identifier further comprises: transmitting the RAT identifier using a waveform with a fixed coding scheme and fixed modulation scheme that is supported by each of the at least two different RATs.
10. 10 . The method as recited in claim 7 , the method further comprising: indicating, using the RAT identifier, one or more characteristics of the shareable air interface resource, the one or more characteristics comprising at least one of: an assigned RAT start time; an assigned RAT time duration; an assigned RAT frequency partition; or an assigned RAT carrier frequency.
11. 11 . The method as recited in claim 7 , wherein indicating the one or more downlink air interface resources used to transmit the RAT identifier further comprises indicating one or more of: a RAT identifier beam direction; a RAT identifier bandwidth portion; a RAT identifier carrier frequency; a RAT identifier start time; or a RAT identifier time duration.
12. 12 . The method as recited in claim 7 , wherein the shareable air interface resource includes a time duration defined by an air interface resource partitioning scheme of a first RAT of the at least two different RATs, and wherein transmitting the RAT identifier further comprises: transmitting the RAT identifier at a beginning of the time duration defined by the air interface resource partitioning scheme of the first RAT.
13. 13 . The method as recited in claim 7 , further comprising: reallocating the shareable air interface resource from a first RAT of the at least two different RATs to a second RAT of the at least two different RATs; updating the RAT identifier to indicate the reallocation of the shareable air interface resource from the first RAT to the second RAT; and transmitting the updated RAT identifier to indicate the reallocated shareable air interface resource.
14. 14 . The method as recited in claim 13 , wherein reallocating the shareable air interface resource from the first RAT of the at least two different RATs to the second RAT of the at least two different RATs further comprises: receiving, from the second base station, a request to reallocate the shareable air interface resource from the first RAT to the second RAT; and performing the reallocating based on receiving the request.
15. 15 . An apparatus comprising: at least one wireless transceiver; a processor; and computer-readable storage media comprising instructions executable by the processor to configure the apparatus to: receive, using the at least one wireless transceiver, a radio access technology-identifier-presence indicator (RAT-identifier-presence indicator) that indicates a presence of a Radio Access Technology (RAT) identifier by indicating one or more downlink air interface resources used to transmit the RAT identifier, the RAT identifier indicating an allocation of shareable air interface resource between at least two different RATs; receive the RAT identifier according to the one or more downlink air interface resources indicated by the RAT-identifier-presence indicator; identify, from the RAT identifier, the allocation of the shareable air interface resource between the at least two different RATs; and communicate over at least two wireless links by processing the shareable air interface resource using the at least two different RATs according to the allocation.
16. 16 . The apparatus of claim 15 , wherein the instructions for the reception of the RAT-identifier-presence indicator are further executable to configure the apparatus to: receive the RAT-identifier-presence indicator in a broadcast message; or receive at least a portion of the RAT-identifier-presence indicator in a layer 3 radio resource control (RRC) message.
17. 17 . The apparatus of claim 15 , wherein the instructions for the reception of the RAT identifier are further executable to configure the apparatus to: blind decode the RAT identifier using a waveform with a fixed coding scheme and fixed modulation scheme that is supported by each of the at least two different RATs.
18. 18 . The apparatus of claim 15 , wherein one or more characteristics of the shareable air interface resource comprise at least one of: an assigned RAT start time; an assigned RAT time duration; an assigned RAT frequency partition; or an assigned RAT carrier frequency.
19. 19 . The apparatus of claim 15 , wherein the shareable air interface resource includes a time duration defined by an air interface resource partitioning scheme of a first RAT of the at least two different RATs, and wherein the instructions for the reception of the RAT identifier are further executable to configure the apparatus to: receive the RAT identifier at a beginning of the time duration defined by the air interface resource partitioning scheme of the first RAT.
20. 20 . The apparatus of claim 15 , the instructions further executable to configure the apparatus to: receive an updated RAT identifier that indicates a reallocation of the shareable air interface resource from a first RAT of the at least two different RATs to a second RAT of the at least two different RATs; and process the shareable air interface resource according to the reallocation indicated by the updated RAT identifier.

Description

RELATED APPLICATION(S) This application is a national stage entry of International Application No. PCT/US2021/021541, filed Mar. 9, 2021, which claims the benefit of U.S. Provisional Application No. 63/012,555, filed Apr. 20, 2020, the disclosures of which are incorporated herein by reference in their entirety. BACKGROUND Evolving wireless communication systems, such as fifth generation (5G) technologies and sixth generation (6G) technologies, use various techniques that increase data capacity relative to preceding wireless networks. As one example, some evolving user equipments (UEs) support simultaneous wireless links to multiple Radio Access Technologies (RATs) to increase the data capacity. Oftentimes, different RATs utilize different frequency bands, timing relationships, modulation schemes, coding schemes, and so forth. This can disadvantageously increase the cost and size of a UE that supports multiple RATs. To illustrate, a UE that supports two RATs includes a first radio to support a first RAT and a second radio to support the second RAT. As wireless technologies evolve, opportunities emerge to support multiple RATs to obtain the performance benefits (e.g., increased data capacity) while seeking to maintain the cost or size of the corresponding UE. SUMMARY This document describes techniques and apparatuses for radio access technology identifiers. In aspects, a base station receives, from a second base station, air interface resource prospective usage information associated with communications over a first wireless link of at least two wireless links that use different Radio Access Technologies (RATs). The base station then allocates the sharable air interface resource between the at least two wireless links by analyzing the air interface resource prospective usage information. In aspects, the base station transmits a RAT-identifier-presence indicator that communicates a presence of a RAT identifier by indicating one or more downlink air interface resources used to transmit the RAT identifier, where the RAT identifier indicates the allocation of the sharable air interface resource between the at least two wireless links. The base station then transmits the RAT identifier using the one or more downlink air interface resources indicated by the RAT-identifier-presence indicator. In one or more aspects, a UE receives, from a base station, a radio access technology-identifier-presence indicator (RAT-identifier-presence indicator) that indicates a presence of a radio access technology identifier (RAT identifier) by indicating one or more downlink air interface resources used to transmit the RAT identifier. The RAT identifier indicates an allocation of a sharable air interface resource between at least two wireless links that implement different Radio Access Technologies (RATs). The UE then receives the RAT identifier according to the indicated one or more downlink air interface resources and identifies the allocation of the sharable air interface resource from the RAT identifier. In aspects, the UE processes the sharable air interface resource according to the allocation. The details of one or more implementations of radio access technology identifiers are set forth in the accompanying drawings and the following description. Other features and advantages will be apparent from the description and drawings, and from the claims. This summary is provided to introduce subject matter that is further described in the Detailed Description and Drawings. Accordingly, this summary should not be considered to describe essential features nor used to limit the scope of the claimed subject matter. BRIEF DESCRIPTION OF THE DRAWINGS The details of one or more aspects of radio access technology identifiers are described below. The use of the same reference numbers in different instances in the description and the figures indicate similar elements: FIG. 1 illustrates an example operating environment in which various aspects of radio access technology identifiers can be implemented. FIG. 2 illustrates an example device diagram of network entities that can implement various aspects of radio access technology identifiers. FIG. 3 illustrates an example device diagram of a network that can implement various aspects of radio access technology identifiers. FIG. 4 illustrates an example environment in accordance with various implementations of radio access technology identifiers. FIG. 5 illustrates an example environment in accordance with various implementations of radio access technology identifiers. FIG. 6 illustrates an example environment in accordance with various implementations of radio access technology identifiers. FIG. 7 illustrates a signaling and control transaction diagram between various network devices in accordance with one or more aspects of radio access technology identifiers. FIG. 8 illustrates an example method for radio access technology identifiers in accordance with one or more aspects FIG. 9 illustrates an