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US 2026/0012906 A1Published application
Identifier determination of subnetwork
AssigneeNokia Technologies Oy
InventorsDong LI, Tao TAO, Saeed Reza KHOSRAVIRAD, Paolo BARACCA
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Abstract
Example embodiments of the present disclosure relate to devices, methods, apparatuses and computer readable storage media for identifier determination of a subnetwork. In example embodiments, a first network device in a subnetwork of a radio access network obtains a first identifier and a second identifier of the subnetwork. Then, the first network device transmits, to one or more terminal devices in the subnetwork, a synchronization signal, wherein the synchronization signal is based on the first identifier. Further, the first network device uses the second identifier in data communication, within the subnetwork, with at least one of the one or more terminal devices.
Claims21
-28. (canceled)
A terminal device in a subnetwork of a radio access network, the terminal device comprising:
- at least one processor;
- and
- at least one memory including computer program code that, when executed by the at least one processor, cause the terminal device to:
- detect a synchronization channel associated with a first network device in the subnetwork, wherein the synchronization channel is based on a first identifier of the subnetwork, the first identifier having a length of four bits;
- receive, from the first network device, a message transmitted via the synchronization channel in the subnetwork with a reference signal associated with the synchronization channel, the message being indicative of a second identifier, and wherein the reference signal is a demodulation reference signal (DMRS);
- obtain the reference signal associated with the synchronization channel, the reference signal being based at least on the first identifier as a base signal sequence and a randomly selected value from a pre-defined set for use as a cyclic shift;
- determine a base sequence based on the first identifier;
- make a hypothesis test for each cyclic shift corresponding to each selected value of the pre-defined set;
- based on the hypothesis test for cyclic shift, perform channel estimation and synchronization channel decoding;
- based on performing the channel estimation and the synchronization channel decoding, acquire, from the synchronization channel, synchronization information and control information including the second identifier, the second identifier having a length of ten bits;
- and
- use the second identifier of the subnetwork in data communication with the first network device and with at least one of one or more terminal devices in the subnetwork.
9 more elements
A system comprising:
- a terminal device in a subnetwork of a radio access network;
- at least one processor;
- and
- at least one memory including computer program code that, when executed by the at least one processor, cause the terminal device to:
- detect a synchronization channel associated with a first network device in the subnetwork, wherein the synchronization channel is based on a first identifier of the subnetwork, the first identifier having a length of four bits;
- receive, from the first network device, a message transmitted via the synchronization channel in the subnetwork with a reference signal associated with the synchronization channel, the message being indicative of a second identifier, and wherein the reference signal is a demodulation reference signal (DMRS);
- obtain the reference signal associated with the synchronization channel, the reference signal being based at least on the first identifier as a base signal sequence and a randomly selected value from a pre-defined set for use as a cyclic shift;
- determine a base sequence based on the first identifier;
- make a hypothesis test for each cyclic shift corresponding to each selected value of the pre-defined set;
- based on the hypothesis test for cyclic shift, perform channel estimation and synchronization channel decoding;
- based on performing the channel estimation and the synchronization channel decoding, acquire, from the synchronization channel, synchronization information and control information including the second identifier, the second identifier having a length of ten bits;
- and
- use the second identifier of the subnetwork in data communication with the first network device and with at least one of one or more terminal devices in the subnetwork.
10 more elements
A method comprising:
- detecting a synchronization channel associated with a first network device, wherein the synchronization channel is based on a first identifier of the subnetwork, the first identifier having a length of four bits;
- receiving, from the first network device, a message transmitted via the synchronization channel in the subnetwork with a reference signal associated with the synchronization channel, the message being indicative of a second identifier, and wherein the reference signal is a demodulation reference signal (DMRS);
- obtaining the reference signal associated with the synchronization channel, the reference signal being based at least on the first identifier as a base signal sequence and a randomly selected value from a pre-defined set for use as a cyclic shift;
- determining a base sequence based on the first identifier;
- making a hypothesis test for each cyclic shift corresponding to each selected value of the pre-defined set;
- based on the hypothesis test for cyclic shift, performing channel estimation and synchronization channel decoding;
- based on performing the channel estimation and the synchronization channel decoding, acquiring, from the synchronization channel, synchronization information and control information including the second identifier, the second identifier having a length of ten bits;
- and
- using the second identifier of the subnetwork in data communication with the first network device and with at least one of one or more terminal devices in the subnetwork.
6 more elements
Dependencies are inferred from the claim text.