Search

EP-4329228-B1 - METHOD AND APPARATUS FOR USE IN WIRELESS COMMUNICATION NODES

EP4329228B1EP 4329228 B1EP4329228 B1EP 4329228B1EP-4329228-B1

Inventors

  • HU, YANG
  • ZHANG, XIAOBO

Dates

Publication Date
20260513
Application Date
20220517

Claims (15)

  1. A user equipment, UE, (1600) for wireless communications, the UE comprising: a receiver (1601); and a transmitter (1602), wherein: the receiver is configured to receive a first information block and a first signaling information, the first information block indicating a first time-frequency resource pool, the first signaling information being a downlink control information, DCI, the first signaling information comprising a first field, the first field being a downlink assignment index, DAI, field comprised in the first signaling information, the first signaling information being used to schedule a number, K, of physical downlink shared channels, PDSCHs, wherein the number, K, of PDSCHs is a positive integer greater than 1 and not greater than N, N being pre-defined or configurable; and the transmitter is configured to transmit a first signal using a first transmit power, the first signal being a physical uplink control channel, PUCCH, the first signal comprising at least one control information bit, the at least one control information bit comprising at least one hybrid automatic repeat request - acknowledgement, HARQ-ACK, information bit for the K PDSCHs; wherein time-frequency resources occupied by the first signal belong to the first time-frequency resource pool, wherein a first resource amount is a number of resource elements used for the first signal comprised in the first time-frequency resource pool, wherein at least one of K or N is used to determine a first value, wherein the first field and the first value are used together to determine a first number of information bits, and wherein the first number of information bits and the first resource amount are used together to determine the first transmit power.
  2. The UE according to claim 1, wherein N is related to a maximum number of PDSCHs scheduled by one DCI.
  3. The UE according to claim 1 or 2, wherein the first value is equal to a maximum value in a first value set, the first value set comprises a first intermediate value, the first intermediate value is equal to N multiplied by a first parameter value, and the first parameter value is equal to 1 or 2.
  4. The UE according to any of claims 1 to 3, wherein a second value is equal to a difference value of a value of the first field minus a first sum then modulo T D , T D is a positive integer; T D is equal to V-th power of 2, and V is equal to a number of bits comprised in a counter DAI field; the first number of information bits is equal to a sum of multiple addends, and a product of the first value and the second value is one of the multiple addends; the first sum is equal to one number, or a sum of multiple numbers; the number or any of the multiple numbers is equal to a total number of DCIs used to schedule at least two PDSCHs for a serving cell detected in a first time-domain resource pool, and the first time-domain resource pool comprises at least one physical downlink control channel, PDCCH, monitoring occasion.
  5. The UE according to any of claims 1 to 4, wherein a first calculation amount is equal to a sum of the first number of information bits plus a second number of information bits, and the first calculation amount and the first resource amount are used together to determine a first adjustment amount; at least one of a number of scheduling request, SR, information bits comprised in control information bits carried by the first signal or a number of channel state information, CSI, information bits comprised in control information bits carried by the first signal is used to determine the second number of information bits; a target adjustment amount is equal to the first adjustment amount, the first transmit power is equal to a smaller one of upper transmit power and target transmit power, the target adjustment amount is used to determine the target transmit power, and the upper transmit power is pre-defined or configurable; the first calculation amount and the first resource amount being used together to determine the first adjustment amount comprises: a second calculation amount is equal to a product of K 1 and the first calculation amount divided by the first resource amount, and the first adjustment amount = 10xlog10 (the second calculation amount), K 1 is equal to 6.
  6. The UE according to any of claims 1 to 4, wherein a first calculation amount is equal to the first number of information bits; the first calculation amount and the first resource amount are used together to determine a first adjustment amount; a target adjustment amount is equal to the first adjustment amount, the first transmit power is equal to a smaller one of upper transmit power and target transmit power, the target adjustment amount is used to determine the target transmit power, and the upper transmit power is pre-defined or configurable.
  7. A base station (1700) for wireless communications, the base station comprising: a receiver (1702); and a transmitter (1701), wherein: the transmitter is configured to transmit a first information block and a first signaling information, the first information block indicating a first time-frequency resource pool, the first signaling information being a downlink control information, DCI, the first signaling information comprising a first field, the first field being a downlink assignment index, DAI, field comprised in the first signaling information, the first signaling information being used to schedule a number, K, of physical downlink shared channels, PDSCHs, wherein the number, K, of PDSCHs is a positive integer greater than 1 and not greater than N, N being pre-defined or configurable; and the receiver is configured to receive a first signal transmitted with a first transmit power, the first signal being a physical uplink control channel, PUCCH, the first signal comprising at least one control information bit, the at least one control information bit comprising at least one hybrid automatic repeat request - acknowledgement, HARQ-ACK information bit for the K PDSCHs; wherein time-frequency resources occupied by the first signal belong to the first time-frequency resource pool, wherein a first resource amount is a number of resource elements used for the first signal comprised in the first time-frequency resource pool, wherein at least one of K or N is used to determine a first value, wherein the first field and the first value are used together to determine a first number of information bits, and wherein the first number of information bits and the first resource amount are used together to determine the first transmit power.
  8. The base station according to claim 7, wherein N is related to a maximum number of PDSCHs scheduled by one DCI; the first value is equal to a maximum value in a first value set, the first value set comprises a first intermediate value, the first intermediate value is equal to N multiplied by a first parameter value, and the first parameter value is equal to 1 or 2; a second value is equal to a difference value of a value of the first field minus a first sum then modulo T D , T D is a positive integer, T D is equal to V-th power of 2, and V is equal to a number of bits comprised in a counter DAI field; the first number of information bits is equal to a sum of multiple addends, and a product of the first value and the second value is one of the multiple addends; the first sum is equal to one number, or a sum of multiple numbers; the number or any of the multiple numbers is equal to a total number of DCIs used to schedule at least two PDSCHs for a serving cell detected in a first time-domain resource pool, and the first time-domain resource pool comprises at least one physical downlink control channel, PDCCH, monitoring occasion.
  9. A method for use in a user equipment, UE, (1600) for wireless communications, the method comprising: receiving (101, S511) a first information block and a first signaling information, the first information block indicating a first time-frequency resource pool, the first signaling information being a downlink control information, DCI, the first signaling information comprising a first field, the first field being a downlink assignment index, DAI, field comprised in the first signaling information, the first signaling information being used to schedule a number, K, of physical downlink shared channels, PDSCHs, wherein the number, K, of PDSCHs is a positive integer greater than 1 and not greater than N, N being pre-defined or configurable; and transmitting (102, S513) a first signal using a first transmit power, the first signal being a physical uplink control channel, PUCCH, the first signal comprising at least one control information bit, the at least one control information bit comprising at least one hybrid automatic repeat request - acknowledgement, HARQ-ACK, information bit for the K PDSCHs; wherein time-frequency resources occupied by the first signal belong to the first time-frequency resource pool, wherein a first resource amount is a number of resource elements used for the first signal comprised in the first time-frequency resource pool, wherein at least one of K or N is used to determine a first value, wherein the first field and the first value are used together to determine a first number of information bits, and wherein the first number of information bits and the first resource amount are used together to determine the first transmit power.
  10. The method according to claim 9, wherein N is related to a maximum number of PDSCHs scheduled by one DCI.
  11. The method according to claim 9 or 10, wherein the first value is equal to a maximum value in a first value set, the first value set comprises a first intermediate value, the first intermediate value is equal to N multiplied by a first parameter value, and the first parameter value is equal to 1 or 2.
  12. The method according to any of claims 9 to 11, wherein a second value is equal to a difference value of a value of the first field minus a first sum then modulo T D , T D is a positive integer, T D is equal to V-th power of 2, and V is equal to a number of bits comprised in a counter DAI field; the first number of information bits is equal to a sum of multiple addends, and a product of the first value and the second value is one of the multiple addends; the first sum is equal to one number, or a sum of multiple numbers; the number or any of the multiple numbers is equal to a total number of DCIs used to schedule at least two PDSCHs for a serving cell detected in a first time-domain resource pool, and the first time-domain resource pool comprises at least one physical downlink control channel, PDCCH, monitoring occasion.
  13. The method according to any of claims 9 to 12, wherein a first calculation amount is equal to a sum of the first number of information bits plus a second number of information bits, and the first calculation amount and the first resource amount are used together to determine a first adjustment amount; at least one of a number of scheduling request, SR, information bits comprised in control information bits carried by the first signal or a number of channel state information, CSI, information bits comprised in control information bits carried by the first signal is used to determine the second number of information bits; a target adjustment amount is equal to the first adjustment amount, the first transmit power is equal to a smaller one of upper transmit power and target transmit power, the target adjustment amount is used to determine the target transmit power, and the upper transmit power is pre-defined or configurable; the first calculation amount and the first resource amount being used together to determine the first adjustment amount comprises: a second calculation amount is equal to a product of K 1 and the first calculation amount divided by the first resource amount, and the first adjustment amount = 10xlog10 (the second calculation amount), K 1 is equal to 6.
  14. The method according to any of claims 9 to 12, wherein a first calculation amount is equal to the first number of information bits; the first calculation amount and the first resource amount are used together to determine a first adjustment amount; a target adjustment amount is equal to the first adjustment amount, the first transmit power is equal to a smaller one of upper transmit power and target transmit power, the target adjustment amount is used to determine the target transmit power, and the upper transmit power is pre -defined or configurable.
  15. A method for use in a base station (1700) for wireless communications, the method comprising: transmitting (S521) a first information block and a first signaling information, the first information block indicating a first time-frequency resource pool, the first signaling information being a downlink control information, DCI, the first signaling information comprising a first field, the first field being a downlink assignment index, DAI, field comprised in the first signaling information, the first signaling information being used to schedule a number, K, of physical downlink shared channels, PDSCHs, wherein the number, K, of PDSCHs is a positive integer greater than 1 and not greater than N, N being pre-defined or configurable; and receiving (S523) a first signal transmitted with first transmit power, the first signal being a physical uplink control channel, PUCCH, the first signal comprising at least one control information bit, the at least one control information bit comprising at least one hybrid automatic repeat request - acknowledgement, HARQ-ACK, information bit for the K PDSCHs; wherein time-frequency resources occupied by the first signal belong to the first time-frequency resource pool, wherein a first resource amount is a number of resource elements used for the first signal comprised in the first time -frequency resource pool, wherein at least one of K or N is used to determine a first value, wherein the first field and the first value are used together to determine a first number of information bits, and wherein the first number of information bits and the first resource amount are used together to determine the first transmit power.

Description

TECHNICAL FIELD The present application relates to transmission methods and devices in wireless communication systems, and in particular to a transmission method and device of a radio signal in wireless communication systems supporting cellular networks. BACKGROUND For wireless communications using high-frequency frequency bands (such as frequency bands between 52.6 GHz and 71 GHz), 3GPP supports a scheduling method of one Downlink Control Information (DCI) signaling scheduling multiple Physical Downlink Shared CHannel (PDSCH) receptions in NR Release 17 version. Document US 2019 / 0 313 342 A1 discloses a method and apparatus for determining a power or a number of repetitions for a physical uplink control channel (PUCCH) transmission that includes a number of uplink control information (UCI) bits. A power for the PUCCH transmission is determined based on an adjustment factor that uses different functions depending on the number of UCI bits or based on a type of the UCI bits. A number of repetitions for the PUCCH transmission that is with a spatial filter over a number of symbols is determined from a reference number of repetitions and one or more of a reference number of UCI bits, a reference number of symbols, or a reference spatial filter. SUMMARY After introducing the function of one DCI scheduling multiple PDSCH receptions, how to reasonably adjust the determination method of PUCCH transmit power to adapt to the new Downlink Assignment Index (DAI) interpretation is a key problem that must be solved. To address the above problem, the present application provides a solution. It should be noted that though the present application only took the Uplink for example in the statement above, it is also applicable to other transmission scenarios, such as Downlink and Sidelink, where similar technical effects can be achieved. Additionally, the adoption of a unified solution for various scenarios (including but not limited to Uplink, Downlink and Sidelink) contributes to the reduction of hardcore complexity and costs. It should be noted that the embodiments in a User Equipment (UE) in the present application and characteristics of the embodiments may be applied to a base station if no conflict is incurred, and vice versa. And the embodiments in the present application and the characteristics in the embodiments can be arbitrarily combined if there is no conflict. For example, interpretations of the terminology in the present application refer to definitions given in the 3GPP TS36 series. For example, interpretations of the terminology in the present application refer to definitions given in the 3GPP TS38 series. For example, interpretations of the terminology in the present application refer to definitions given in the 3GPP TS37 series. For example, interpretations of the terminology in the present application refer to definitions given in Institute of Electrical and Electronics Engineers (IEEE) protocol specifications. According to the present disclosure, there are provided nodes and methods according to the independent claims. Further developments are set forth in the dependent claims. According to a first aspect of the present disclosure, there is provided a user equipment, UE, for wireless communications, the UE comprising a receiver and a transmitter. The receiver is configured to receive a first information block and a first signaling information, the first information block indicating a first time-frequency resource pool, the first signaling information being a downlink control information, DCI, the first signaling information comprising a first field, the first field being a downlink assignment index, DAI, field comprised in the first signaling information, the first signaling information being used to schedule a number, K, of physical downlink shared channels, PDSCHs, wherein the number, K, of PDSCHs is a positive integer greater than 1 and not greater than N, N being pre-defined or configurable; and the transmitter is configured to transmit a first signal using a first transmit power, the first signal being a physical uplink control channel, PUCCH, the first signal comprising at least one control information bit, the at least one control information bit comprising at least one hybrid automatic repeat request - acknowledgement, HARQ-ACK, information bit for the K PDSCHs; wherein time-frequency resources occupied by the first signal belong to the first time-frequency resource pool, wherein a first resource amount is a number of resource elements used for the first signal comprised in the first time-frequency resource pool, wherein at least one of K or N is used to determine a first value, wherein the first field and the first value are used together to determine a first number of information bits, and wherein the first number of information bits and the first resource amount are used together to determine the first transmit power. According to a second aspect of the present disclosure, there is provided a b