Abstract
A method and apparatus for establishing peer-to-peer communication in a wireless network is described. A wireless transmit/receive unit (WTRU) may receive configuration information comprising periodic resources comprising time and subcarrier resources from a base station of a wireless network. The time and subcarrier resources may be used in discovery of other WTRUs. The WTRU is further configured to transmit an identification in the allocated resources and to transmit a synchronization signal to a peer WTRU for timing synchronization of the peer WTRU.
Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | |||||
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5G | 14/12/2020 | ISLD-202012-039 | INTERDIGITAL INC |
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5G | 29/09/2021 | ISLD-202109-030 | INTERDIGITAL INC |
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No | Family Member |
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US2015055634A1 | 4G | 10/12/2015 | ISLD-201511-004 | INTERDIGITAL INC | Yes | Basis Patent | ||||
US2015055634A1 | 4G | 30/12/2019 | ISLD-201912-087 | INTERDIGITAL INC | No | Family Member | ||||
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Publication No | Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | Status | National Phase Entries | |||||
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Technologies
Product
Use Cases
Services
Claim
1. A method implemented in a Wireless Transmit Receive Unit (WTRU) for peer-to-peer communications, the method comprising:
receiving configuration information from a base station of a wireless network, the configuration information indicating a pattern of time resources for use in peer-to-peer communications;
transmitting to at least one peer WTRU control information in at least one of the time resources in the pattern of time resources, wherein the control information includes a group identifier indicating a peer group comprising the at least one peer WTRU intended for receiving the control information and an indication of resources for transmission of peer data; and
transmitting, to the at least one peer WTRU, peer data in the indicated resources for transmission of peer data.
2. The method of claim 1 wherein the control information comprises a primary advanced preamble.
3. The method of claim 1 wherein the control information comprises a secondary advanced preamble.
4. The method of claim 1 wherein the control information is transmitted periodically.
5. The method of claim 4 wherein the control information provides its own timing information.
6. The method of claim 1 further comprising:
estimating a path loss to the at least one peer WTRU; and
reporting the estimated path loss to a network.
7. The method of claim 6 wherein the path loss is estimated based on the handshake seeking signal.
8. The method of claim 1 wherein the control information further identifies the WTRU.
9. The method of claim 8 further comprising:
transmitting access information.
10. The method of claim 9 further comprising: receiving a random access channel (RACH) transmission from the at least one peer WTRU.
11. The method of claim 10 further comprising:
transmitting resource allocation to the other WTRU.
12. The method of claim 11 further comprising:
receiving a transmission from the at least one peer WTRU including identities of the WTRU and the at least one peer WTRU.
13. The method of claim 1 wherein the WTRU increases a transmit power of the timing signal on a condition that no other subscriber station successfully receives the timing signal.
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Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.
Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.
Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.
Family member:related patents or applications that share a common priority or original filing.