CN-122029778-A - Apparatus, method and storage medium for transmitting uplink signal in a forward interface

Abstract

An apparatus of a Radio Unit (RU) may include a memory to store instructions, a transceiver, and at least one processor. The instructions, when executed by at least one processor, individually or collectively, may cause an apparatus to receive a control plane message including a zone extension from a Distributed Unit (DU). The segment extension may include transmission timing information for the uplink user plane message. The instructions, when executed by the at least one processor, individually or collectively, may cause the apparatus to transmit an uplink user plane message to the DU based on the transmission timing information included in the zone extension. The transmission timing information may include an identifier for a plurality of transmission symbols in which symbols of uplink data have been received from the user equipment.

Inventors

• WU ZHONGHAO
• JIANG XIAOCHENG
• JIN JUNJI
• JIN XIANGXIAN
• CUI DONGYU

Assignees

• 三星电子株式会社

Dates

Publication Date

20260512

Application Date

20240801

Priority Date

20230814

Claims (15)

1. 1. A Radio Unit (RU), comprising: a memory comprising one or more storage media storing instructions; transceiver, and At least one processor, and Wherein the instructions, when executed by the at least one processor, individually or collectively, cause the RU to: Receiving a control plane message from a Distributed Unit (DU) comprising a segment extension, the segment extension comprising transmission timing information for an uplink user plane message, and Transmitting the uplink user plane message to a DU based on the transmission timing information included in the zone extension, and Wherein the transmission timing information includes an identifier of a plurality of transmission symbols in which symbols of uplink data are received from a User Equipment (UE).
2. 2. The RU of claim 1, Wherein the instructions, when executed by the at least one processor, individually or collectively, cause the RU to: Receiving the uplink data from the UE, and Generating the uplink user plane message to be transmitted to the DU based on the uplink data, Wherein the symbols are determined based on a start symbol identifier in a common header field of the control plane message and information indicating the number of symbols in a section field of the control plane message, and Wherein the section extension is included in a section field of the control plane message.
3. 3. The RU of claim 2, In a case where a symbol receiving the uplink data includes a first symbol, a second symbol, and a third symbol, wherein an identifier of the transmission timing information includes: a first identifier of a first transmission symbol of the plurality of transmission symbols mapped to the first symbol, The first identifier of the first transmission symbol mapped to the second symbol of the plurality of transmission symbols, and A second identifier of a second transmission symbol of the plurality of transmission symbols mapped to the third symbol.
4. 4. The RU of claim 1, Wherein the control plane message is associated with a zone type 5 or a zone type for uplink performance improvement (ULPI).
5. 5. The RU of claim 1, Wherein the control plane message further comprises a further segment extension comprising further transmission timing information for a further uplink user plane message, Wherein the section extension is associated with a first section having a first section identifier, and Wherein the further section extension is associated with a second section having a second section identifier.
6. 6. The RU of claim 5, Wherein the further transmission timing information comprises a further identifier of a further transmission symbol for receiving therein a further symbol of uplink data from a further UE, Wherein a plurality of further transmission symbols are consecutive to the plurality of transmission symbols, and Wherein the plurality of transmission symbols and the plurality of further transmission symbols are included in a time slot.
7. 7. The RU of claim 1, Wherein the instructions, when executed by the at least one processor, individually or collectively, cause the RU to: Sending a management plane message to the DU including capability information indicating whether the RU supports a zone extension for uplink performance improvement (ULPI), Wherein the capability information includes one of the following values: A first value indicating that the RU does not support the zone extension, A second value indicating that the RU supports the zone extension, and A third value indicating that the RU conditionally supports the zone extension.
8. 8. The RU of claim 7, Wherein, in the case that the capability information has the second value or the third value, the management plane message further includes a maximum number of leading symbols, and Wherein the maximum number of leading symbols represents a maximum value of the number of transmission symbols between a first transmission symbol in a slot corresponding to one of symbols in which the uplink data is received and a second transmission symbol in the slot changed from the first transmission symbol based on indication information.
9. 9. A Distributed Unit (DU) comprising: A memory including one or more storage media storing instructions; transceiver, and At least one processor including processing circuitry, and Wherein the instructions, when executed by the at least one processor, individually or collectively, cause the DU to: transmitting a control plane message to a Radio Unit (RU) including a zone extension including transmission timing information for an uplink user plane message, and Receiving the uplink user plane message from RU based on the transmission timing information included in the zone extension, and Wherein the transmission timing information includes an identifier of a plurality of transmission symbols in which symbols of uplink data are received from a User Equipment (UE).
10. 10. The DU according to claim 9, Wherein the uplink data is received by the RU from the UE, and Wherein the symbols are determined based on a start symbol identifier in a common header field of the control plane message and information indicating the number of symbols in a section field of the control plane message, and Wherein the section extension is included in a section field of the control plane message.
11. 11. The DU according to claim 10, In a case where a symbol receiving uplink data includes a first symbol, a second symbol, and a third symbol, wherein the identifier of the transmission timing information includes: a first identifier of a first transmission symbol of the plurality of transmission symbols mapped to the first symbol, The first identifier of the first transmission symbol mapped to the second symbol of the plurality of transmission symbols, and A second identifier of a second transmission symbol of the plurality of transmission symbols mapped to the third symbol.
12. 12. The DU according to claim 9, Wherein the control plane message further comprises a further segment extension indicating a further transmission timing for a further uplink user plane message, Wherein the section extension is associated with a first section having a first section identifier, Wherein the further section extension is associated with a second section having a second section identifier, Wherein the further transmission timing information comprises a further identifier for a plurality of further symbols in which further symbols of uplink data are received from a further UE, Wherein a plurality of further uplink transmission symbols are consecutive to the plurality of transmission symbols, and Wherein the plurality of transmission symbols and the plurality of further uplink transmission symbols are included in a time slot.
13. 13. The DU according to claim 9, Wherein the instructions, when executed by the at least one processor, individually or collectively, cause the DU to: receiving a management plane message from the RU including capability information indicating whether the RU supports a zone extension for uplink performance improvement (ULPI), Wherein the capability information includes one of the following values: A first value indicating that the RU does not support the zone extension, A second value indicating that the RU supports the zone extension, and A third value indicating that the RU conditionally supports the zone extension.
14. 14. A method performed by a Radio Unit (RU), comprising: Receiving a control plane message from a Distributed Unit (DU) comprising a segment extension, the segment extension comprising transmission timing information for an uplink user plane message, and Transmitting the uplink user plane message to a DU based on the transmission timing information included in the zone extension, and Wherein the transmission timing information includes an identifier of a plurality of transmission symbols in which symbols of uplink data are received from a User Equipment (UE).
15. 15. A computer-readable storage medium storing one or more programs comprising instructions, which when executed by at least one processor of a Radio Unit (RU) comprising a transceiver, cause the RU to: Receiving a control plane message from a Distributed Unit (DU) comprising a segment extension, the segment extension comprising transmission timing information for an uplink user plane message, and Transmitting the uplink user plane message to a DU based on the transmission timing information included in the zone extension, Wherein the transmission timing information includes an identifier of a plurality of transmission symbols in which symbols of uplink data are received from a User Equipment (UE).

Description

Apparatus, method and storage medium for transmitting uplink signal in a forward interface Technical Field The following description relates to apparatuses, methods and storage medium for transmitting uplink signals in a forward (fronthaul) interface. Background As transmission capacity in a wireless communication system increases, functional division of functionally dividing base stations is being applied. According to the functional partitioning, a base station may be divided into a Distributed Unit (DU) and a Radio Unit (RU). A forward interface is defined for communication between the DU and RU. Disclosure of Invention As described above, a Radio Unit (RU) may include a memory including one or more storage media storing instructions. The RU may include a transceiver. The RU may include at least one processor, which includes processing circuitry. The instructions, when executed by at least one processor, individually or collectively, may cause the RU to receive a control plane message including a zone extension (section extension) from a Distributed Unit (DU). The segment extension may include transmission timing information for the uplink user plane message. The instructions, when executed by the at least one processor, individually or collectively, may cause the RU to send an uplink user plane message to the DU based on the transmission timing information included in the zone extension. The transmission timing information may include an identifier of a plurality of transmission symbols in which symbols of uplink data are received from a User Equipment (UE). A Distributed Unit (DU) may include a memory including one or more storage media to store instructions. The DU may include a transceiver. The DU may include at least one processor including processing circuitry. The instructions, when executed by at least one processor, individually or collectively, may cause the DU to transmit a control plane message including a zone extension to a Radio Unit (RU). The segment extension may include transmission timing information for the uplink user plane message. The instructions, when executed by the at least one processor, individually or collectively, may cause the DU to receive an uplink user plane message from the RU based on the transmission timing information included in the zone extension. The transmission timing information may include an identifier of a plurality of transmission symbols in which symbols of uplink data are received from a User Equipment (UE). A method performed by a Radio Unit (RU) may include receiving a control plane message including a zone extension from a Distributed Unit (DU). The segment extension may include transmission timing information for the uplink user plane message. The method may include transmitting an uplink user plane message to the DU based on transmission timing information included in the zone extension. The transmission timing information may include an identifier of a plurality of transmission symbols in which symbols of uplink data are received from a User Equipment (UE). A computer-readable storage medium may store one or more programs comprising instructions that, when executed by at least one processor of a Radio Unit (RU) comprising a transceiver, individually or collectively, cause the RU to receive a control plane message comprising a zone extension from a Distributed Unit (DU). The segment extension may include transmission timing information for the uplink user plane message. The computer-readable storage medium may store one or more programs comprising instructions that, when executed by at least one processor, individually or collectively, cause an RU to send an uplink user plane message to a DU based on transmission timing information included in a zone extension. The transmission timing information may include an identifier of a plurality of transmission symbols in which symbols of uplink data are received from a User Equipment (UE). A method performed by a Distributed Unit (DU) may include transmitting a control plane message including a zone extension to a Radio Unit (RU). The segment extension may include transmission timing information for the uplink user plane message. The method may include receiving an uplink user plane message from the RU based on transmission timing information included in the zone extension. The transmission timing information may include an identifier of a plurality of transmission symbols in which symbols of uplink data are received from a User Equipment (UE). A computer-readable storage medium may store one or more programs comprising instructions that, when executed by at least one processor of a Distributed Unit (DU) comprising a transceiver, individually or collectively, cause the DU to transmit a control plane message comprising a zone extension to a Radio Unit (RU). The segment extension may include transmission timing information for the uplink user plane message. The computer-readable storage medium may store one o