Data transmission method and apparatus

Abstract

The application provides a data transmission method and device, which can adjust data transmission on a pre-configured part of transmission occasions in time, so that the pre-configured transmission occasion can better adapt to the requirements of XR data on transmission delay and the like, the pre-configured wireless resource can be more efficiently utilized to improve the transmission efficiency of XR data, and thus the user experience is improved.

Description

Technical Field

[0001] This application relates to the field of communication technology, and in particular to a method and apparatus for data transmission. Background Technology

[0002] In wireless communication networks, extended reality (XR) technology offers advantages such as multiple perspectives and strong interactivity, providing users with a completely new visual experience and possessing immense application value and commercial potential. XR encompasses technologies such as virtual reality (VR), augmented reality (AR), and mixed reality (MR), and can be widely applied in numerous fields including entertainment, gaming, healthcare, advertising, industry, online education, and engineering.

[0003] XR data is typically transmitted in the form of video frames. Different data packets corresponding to the same video frame usually have dependencies. When some data packets are transmitted incorrectly or the latency budget is exceeded, the transmission of the video frame will fail. Therefore, how to efficiently utilize limited wireless resources to improve the transmission efficiency of XR data is an urgent problem to be solved. Summary of the Invention

[0004] Firstly, embodiments of this application provide a data transmission method. This method can be executed by a terminal, by a component of the terminal (e.g., a processor, chip, or chip system), or by a logic module or software capable of implementing all or part of the terminal's functions. The method includes: receiving configuration information from a network device, wherein the configuration information configures multiple transmission opportunities; transmitting data with the network device on one or more first transmission opportunities, wherein the one or more first transmission opportunities are a subset of the multiple transmission opportunities; receiving adjustment information from the network device, and transmitting data with the network device on one or more second transmission opportunities according to the adjustment information, wherein the one or more second transmission opportunities are a subset of the multiple transmission opportunities, and the one or more second transmission opportunities are different from the one or more first transmission opportunities. In this method, the network device can adjust the terminal's data transmission on pre-configured partial transmission opportunities in a timely manner through the adjustment information, so that the pre-configured transmission opportunities can better adapt to the requirements of XR data regarding transmission latency, etc., and can more efficiently utilize pre-configured wireless resources to improve the transmission efficiency of XR data, thereby enhancing the user experience.

[0005] In conjunction with the first aspect, in some embodiments of the first aspect, the aforementioned configuration information is semi-persistent scheduling (SPS) configuration information, the aforementioned transmission timing is an SPS transmission timing, the aforementioned first transmission timing is a first SPS transmission timing, and the aforementioned second transmission timing is a second SPS transmission timing. The method further includes: receiving first activation information from a network device. Data transmission with the network device on one or more first transmission timings includes: transmitting data with the network device on one or more first SPS transmission timings according to the first activation information. In this embodiment, the network device can adjust the terminal's data transmission on some pre-configured SPS transmission timings in a timely manner by adjusting the information, so that the pre-configured SPS transmission timings can better adapt to the requirements of XR data on transmission latency, etc., and can more efficiently utilize the pre-configured SPS resources to improve the transmission efficiency of XR data, thereby improving the user experience. At the same time, this method does not affect data transmission on other pre-configured SPS transmission timings, improving the user's XR data reception experience while minimizing the impact on other data transmissions.

[0006] With reference to the first aspect, in some implementations of the first aspect, the foregoing first activation information includes first Modulation and Coding Scheme (MCS) information, and the foregoing adjustment information includes second MCS information. The first MCS information indicates the MCS of each of the one or more first SPS transmission occasions, and the second MCS information indicates the MCS of each of the one or more second SPS transmission occasions. Optionally, the MCS indicated by the second MCS information is lower than the MCS indicated by the first MCS information. For example, the modulation order indicated by the second MCS information is lower than the modulation order indicated by the first MCS information. For another example, the code rate indicated by the second MCS information is lower than the code rate indicated by the first MCS information. For still another example, the modulation order indicated by the second MCS information is lower than the modulation order indicated by the first MCS information, and the code rate indicated by the second MCS information is lower than the code rate indicated by the first MCS information. This implementation can be understood as: when the latest reception time Tlatest1 of a picture frame, the time Tsecond1 of the second SPS transmission occasion, and the retransmission time Tretrans1 corresponding to the second SPS transmission occasion satisfy Tlatest1–Tsecond1<Tretrans1, the MCS indicated by the second MCS information included in the adjustment information sent by the network device to the terminal is lower than the MCS indicated by the first MCS information in the first activation information. Optionally, the retransmission time Tretrans1 corresponding to the second SPS transmission occasion is related to the slot configuration of the terminal and the terminal capability. In this implementation, the data transmitted on the first SPS transmission occasion and the data transmitted on the second SPS transmission occasion may belong to the same picture frame. When the second SPS transmission occasion contains sufficient resources, and the latest reception time Tlatest1 of the picture frame, the time Tsecond1 of the second SPS transmission occasion, and the retransmission time Tretrans1 corresponding to the second SPS transmission occasion satisfy Tlatest1–Tsecond1<Tretrans1, a lower MCS is indicated to the terminal for use on the second SPS transmission occasion through the foregoing adjustment information, so as to improve the reliability of data transmission on the second SPS transmission occasion, reduce the retransmission probability of data transmitted on the second SPS transmission occasion, thereby minimizing the data transmission delay and improving the user's experience of receiving XR data.

[0007] In conjunction with the first aspect, in some implementations of the first aspect, in addition to the aforementioned first MCS information, the first activation information further includes first frequency domain resource allocation (FDRA) information; in addition to the aforementioned second MCS information, the adjustment information further includes second FDRA information. The first FDRA information indicates the frequency domain resource of each first SPS transmission occasion among the one or more first SPS transmission occasions, and the second FDRA information indicates the frequency domain resource of each second SPS transmission occasion among the one or more second SPS transmission occasions. Optionally, the frequency domain resources indicated by the second FDRA information are more than the frequency domain resources indicated by the first FDRA information. This implementation can be understood as: when the latest reception time Tlatest1 of a picture frame, the time Tsecond1 of a second SPS transmission occasion, and the retransmission time Tretrans1 corresponding to the second SPS transmission occasion satisfy Tlatest1–Tsecond1<Tretrans1, the MCS indicated by the second MCS information included in the adjustment information sent by the network device to the terminal is lower than the MCS indicated by the first MCS information in the first activation information, and the frequency domain resources indicated by the second FDRA information included in the adjustment information are more than the frequency domain resources indicated by the first FDRA information in the first activation information. Optionally, the retransmission time Tretrans1 corresponding to the second SPS transmission occasion is related to the slot configuration of the terminal and the terminal capability. In this implementation, the data transmitted on the first SPS transmission occasion and the data transmitted on the second SPS transmission occasion may belong to the same picture frame. When the resources included in the second SPS transmission occasion are insufficient, and the latest reception time Tlatest1 of the picture frame, the time Tsecond1 of the second SPS transmission occasion, and the retransmission time Tretrans1 corresponding to the second SPS transmission occasion satisfy Tlatest1–Tsecond1<Tretrans1, by allocating more resources for the second SPS transmission occasion, the reliability of data transmission on the second SPS transmission occasion is improved, so as to reduce the retransmission probability of data transmitted on the second SPS transmission occasion, thereby minimizing the latency of data transmission and improving the user's reception experience of XR data.

[0008] With reference to the first aspect, in some implementations of the first aspect, in addition to receiving the foregoing first activation information including the first MCS information and the adjustment information including the second MCS information, first scheduling information from a network device is further received, and data transmission is performed with the network device on time domain resources other than the plurality of SPS transmission occasions according to the first scheduling information. In this implementation, the data transmitted on the first SPS transmission occasion and the data transmitted on the second SPS transmission occasion may belong to the same picture frame. When the resources included in the foregoing second SPS transmission occasion are insufficient, and the latest reception time Tlatest1 of the picture frame, the time Tsecond1 of the second SPS transmission occasion, and the retransmission time Tretrans1 corresponding to the second SPS transmission occasion satisfy Tlatest1–Tsecond1<Tretrans1, resources outside the SPS transmission occasions are scheduled additionally for transmission of the picture frame data, so as to reduce the latency of data transmission as much as possible and improve the user's reception experience of XR data.

[0009] With reference to the first aspect, in some implementations of the first aspect, the foregoing first activation information is scrambled with a first radio network temporary identifier (RNTI), and the foregoing adjustment information is scrambled with a second RNTI. The first RNTI is different from the second RNTI; or, the first RNTI is the same as the second RNTI, both the adjustment information and the first activation information include a first field, and the first field in the adjustment information is set to a predetermined value.

[0010] With reference to the first aspect, in some implementations of the first aspect, the foregoing configuration information is configured grant (CG) configuration information, the foregoing transmission occasions are CG transmission occasions, the foregoing first transmission occasion is a first CG transmission occasion, and the foregoing second transmission occasion is a second CG transmission occasion. Optionally, the foregoing performing data transmission with the network device on one or more first transmission occasions includes: performing data transmission with the network device on one or more first CG transmission occasions according to the foregoing CG configuration information. In this implementation, the network device may timely adjust the data transmission of the terminal on part of the preconfigured CG transmission occasions through the adjustment information, so that the preconfigured CG transmission occasions can better adapt to the requirements of XR data on transmission latency and other aspects, and the preconfigured CG resources can be utilized more efficiently to improve the transmission efficiency of XR data, thereby improving user experience. Meanwhile, this method does not affect data transmission on other preconfigured CG transmission occasions, and while improving the user's reception experience of XR data, the impact on other data transmission is also reduced as much as possible.

[0011] In conjunction with the first aspect, in some implementations of the first aspect, the above CG configuration information may include third MCS information, and the above adjustment information may include fourth MCS information. The third MCS information configures the MCS of each first CG transmission occasion in one or more first CG transmission occasions, and the fourth MCS information indicates the MCS of each second CG transmission occasion in one or more second CG transmission occasions. Optionally, the MCS indicated by the fourth MCS information is lower than the MCS configured by the third MCS information. For example, the modulation order indicated by the fourth MCS information is lower than the modulation order configured by the third MCS information. For another example, the code rate indicated by the fourth MCS information is lower than the code rate configured by the third MCS information. For still another example, the modulation order indicated by the fourth MCS information is lower than the modulation order configured by the third MCS information, and the code rate indicated by the fourth MCS information is lower than the code rate configured by the third MCS information. This implementation can be understood as: when the latest reception time Tlatest2 of a picture frame, the time Tsecond2 of the second CG transmission occasion, and the retransmission time Tretrans2 corresponding to the second CG transmission occasion satisfy Tlatest2–Tsecond2<Tretrans2, the MCS indicated by the fourth MCS information included in the adjustment information sent by the network device to the terminal is lower than the MCS configured by the third MCS information in the CG configuration information. Optionally, the retransmission time Tretrans2 corresponding to the second CG transmission occasion is related to the slot configuration of the terminal and the terminal capability. In this implementation, the data transmitted on the first CG transmission occasion and the data transmitted on the second CG transmission occasion may belong to the same picture frame. When the second CG transmission occasion contains sufficient resources, and the latest reception time Tlatest2 of the picture frame, the time Tsecond2 of the second CG transmission occasion, and the retransmission time Tretrans2 corresponding to the second CG transmission occasion satisfy Tlatest2–Tsecond2<Tretrans2, the adjustment information described above is used to indicate to the terminal to adopt a lower MCS on the second CG transmission occasion, so as to improve the reliability of data transmission on the second CG transmission occasion, reduce the retransmission probability of data transmitted on the second CG transmission occasion, thereby minimizing the data transmission delay and improving the user's reception experience of XR data.

[0012] With reference to the first aspect, in some implementations of the first aspect, in addition to the foregoing third MCS information, the CG configuration information further includes third FDRA information; and in addition to the foregoing fourth MCS information, the adjustment information further includes fourth FDRA information. The third FDRA information configures a frequency domain resource for each of the one or more first CG transmission occasions, and the fourth FDRA information indicates a frequency domain resource for each of the one or more second CG transmission occasions. Optionally, the frequency domain resources indicated by the fourth FDRA information are more than the frequency domain resources configured by the third FDRA information. This implementation can be understood as: when the latest reception moment Tlatest2 of a picture frame, the moment Tsecond2 of a second CG transmission occasion, and the retransmission time Tretrans2 corresponding to the second CG transmission occasion satisfy Tlatest2–Tsecond2<Tretrans2, the MCS indicated by the fourth MCS information included in the adjustment information sent by the network device to the terminal is lower than the MCS configured by the third MCS information in the CG configuration information, and the frequency domain resources indicated by the fourth FDRA information included in the adjustment information are more than the frequency domain resources configured by the third FDRA information in the CG configuration information. Optionally, the retransmission time Tretrans2 corresponding to the second CG transmission occasion is related to the slot configuration of the terminal and the terminal capability. In this implementation, data transmitted on the first CG transmission occasion and data transmitted on the second CG transmission occasion may belong to the same picture frame. When the resources included in the second CG transmission occasion are insufficient, and the latest reception moment Tlatest2 of the picture frame, the moment Tsecond2 of the second CG transmission occasion, and the retransmission time Tretrans2 corresponding to the second CG transmission occasion satisfy Tlatest2–Tsecond2<Tretrans2, more resources are allocated for the second CG transmission occasion, so as to improve the reliability of data transmission on the second CG transmission occasion, reduce the retransmission probability of data transmitted on the second CG transmission occasion, thereby reducing the data transmission delay as much as possible, and improving the user's experience of receiving XR data.

[0013] In conjunction with the first aspect, in some implementations of the first aspect, in addition to receiving the above CG configuration information including the third MCS information and the adjustment information including the fourth MCS information, second scheduling information from the network device is further received, and data transmission is performed with the network device on time domain resources other than the plurality of CG transmission occasions according to the second scheduling information. In this implementation, the data transmitted on the first CG transmission occasion and the data transmitted on the second CG transmission occasion may belong to the same picture frame. When the resources included in the above second CG transmission occasion are insufficient, and the latest reception time Tlatest2 of the picture frame, the time Tsecond2 of the second CG transmission occasion, and the retransmission time Tretrans2 corresponding to the second CG transmission occasion satisfy Tlatest2–Tsecond2<Tretrans2, resources outside the CG transmission occasions are scheduled additionally for the transmission of the picture frame data, so as to reduce the data transmission delay as much as possible and improve the user's reception experience of XR data.

[0014] In combination with the first aspect, in some implementations of the first aspect, the method further comprises: receiving second activation information from a network device. The foregoing performing data transmission with the network device at one or more first transmission occasions comprises: performing data transmission with the network device at one or more first CG transmission occasions according to the second activation information. Optionally, the above second activation information includes fifth MCS information, and the above adjustment information includes sixth MCS information. The fifth MCS information indicates the MCS of each first CG transmission occasion among the one or more first CG transmission occasions, and the sixth MCS information indicates the MCS of each second CG transmission occasion among the one or more second CG transmission occasions. Optionally, the MCS indicated by the sixth MCS information is lower than the MCS configured by the fifth MCS information. For example, the modulation order indicated by the sixth MCS information is lower than the modulation order indicated by the fifth MCS information. For another example, the code rate indicated by the sixth MCS information is lower than the code rate indicated by the fifth MCS information. For still another example, the modulation order indicated by the sixth MCS information is lower than the modulation order indicated by the fifth MCS information, and the code rate indicated by the sixth MCS information is lower than the code rate indicated by the fifth MCS information. This implementation can be understood as: when the latest reception time Tlatest2 of a picture frame, the time Tsecond2 of the second CG transmission occasion, and the retransmission time Tretrans2 corresponding to the second CG transmission occasion satisfy Tlatest2–Tsecond2<Tretrans2, the MCS indicated by the sixth MCS information included in the adjustment information sent by the network device to the terminal is lower than the MCS indicated by the fifth MCS information in the second activation information. Optionally, the retransmission time Tretrans2 corresponding to the second CG transmission occasion is related to the slot configuration of the terminal and the terminal capability. In this implementation, the data transmitted on the first CG transmission occasion and the data transmitted on the second CG transmission occasion may belong to the same picture frame. When the second CG transmission occasion contains sufficient resources, and the latest reception time Tlatest2 of the picture frame, the time Tsecond2 of the second CG transmission occasion, and the retransmission time Tretrans2 corresponding to the second CG transmission occasion satisfy Tlatest2–Tsecond2<Tretrans2, the adjustment information is used to instruct the terminal to adopt a lower MCS on the second CG transmission occasion, so as to improve the reliability of data transmission on the second CG transmission occasion, reduce the retransmission probability of data transmitted on the second CG transmission occasion, thereby minimizing the data transmission delay and improving the user's reception experience of XR data.

[0015] In conjunction with the first aspect, in some implementations of the first aspect, in addition to the aforementioned fifth MCS information, the second activation information further includes fifth FDRA information; in addition to the aforementioned sixth MCS information, the adjustment information further includes sixth FDRA information. The fifth FDRA information indicates the frequency domain resource of each first CG transmission occasion among one or more first CG transmission occasions, and the sixth FDRA information indicates the frequency domain resource of each second CG transmission occasion among one or more second CG transmission occasions. Optionally, the frequency domain resources indicated by the sixth FDRA information are more than the frequency domain resources configured by the fifth FDRA information. This implementation can be understood as: when the latest reception time Tlatest2 of a picture frame, the time Tsecond2 of the second CG transmission occasion, and the retransmission time Tretrans2 corresponding to the second CG transmission occasion satisfy Tlatest2–Tsecond2<Tretrans2, the MCS indicated by the sixth MCS information included in the adjustment information sent by the network device to the terminal is lower than the MCS indicated by the fifth MCS information in the second activation information, and the frequency domain resources indicated by the sixth FDRA information included in the adjustment information are more than the frequency domain resources indicated by the fifth FDRA information in the second activation information. Optionally, the retransmission time Tretrans2 corresponding to the second CG transmission occasion is related to the slot configuration of the terminal and the terminal capability. In this implementation, the data transmitted on the first CG transmission occasion and the data transmitted on the second CG transmission occasion may belong to the same picture frame. When the resources included in the second CG transmission occasion are insufficient, and the latest reception time Tlatest2 of the picture frame, the time Tsecond2 of the second CG transmission occasion, and the retransmission time Tretrans2 corresponding to the second CG transmission occasion satisfy Tlatest2–Tsecond2<Tretrans2, by allocating more resources for the second CG transmission occasion, the reliability of data transmission on the second CG transmission occasion is improved, so as to reduce the retransmission probability of data transmitted on the second CG transmission occasion, thereby reducing the data transmission delay as much as possible and improving the user's reception experience for XR data.

[0016] With reference to the first aspect, in certain implementations of the first aspect, in addition to receiving the foregoing second activation information including the fifth MCS information and the adjustment information including the sixth MCS information, third scheduling information from the network device is further received, and data transmission is performed with the network device on time domain resources outside the plurality of CG transmission occasions according to the third scheduling information. In this implementation, the data transmitted on the first CG transmission occasion and the data transmitted on the second CG transmission occasion may belong to the same picture frame. When the resources included in the foregoing second CG transmission occasion are insufficient, and the latest reception time Tlatest2 of the picture frame, the time Tsecond2 of the second CG transmission occasion, and the retransmission time Tretrans2 corresponding to the second CG transmission occasion satisfy Tlatest2–Tsecond2<Tretrans2, resources outside the CG transmission occasions are scheduled additionally for transmitting the data of the picture frame, so as to reduce the latency of data transmission as much as possible and improve the user's experience of receiving XR data.

[0017] With reference to the first aspect, in certain implementations of the first aspect, the foregoing second activation information is scrambled by a third RNTI, and the foregoing adjustment information is scrambled by a fourth RNTI. The third RNTI is different from the fourth RNTI; or, the third RNTI is the same as the fourth RNTI, both the adjustment information and the second activation information include a second field, and the second field in the adjustment information is set to a predetermined value.

[0018] In a second aspect, embodiments of the present application provide a communication method. The method may be performed by a network device, may be performed by a component (for example, a processor, a chip, or a chip system, etc.) of the network device, and may also be implemented by a logical module or software capable of implementing all or part of the functions of the network device. The method includes: sending configuration information to a terminal, where the configuration information configures a plurality of transmission occasions. Data transmission is performed with the terminal on one or more first transmission occasions, where the one or more first transmission occasions are some of the foregoing plurality of transmission occasions. Adjustment information is sent to the terminal, where the adjustment information is used to indicate data transmission on one or more second transmission occasions, the one or more second transmission occasions are some of the foregoing plurality of transmission occasions, and the one or more second transmission occasions are different from the foregoing one or more first transmission occasions. Data transmission is performed with the terminal on the one or more second transmission occasions.

[0019] With reference to the second aspect, in certain implementations of the second aspect, the foregoing configuration information is SPS configuration information, the foregoing transmission occasions are SPS transmission occasions, the foregoing first transmission occasion is a first SPS transmission occasion, and the foregoing second transmission occasion is a second SPS transmission occasion. The method further includes: sending first activation information to the terminal, where the first activation information is used to activate data transmission on the foregoing one or more first SPS transmission occasions.

[0020] In conjunction with the second aspect, in some implementations of the second aspect, the foregoing first activation information includes first MCS information, and the foregoing adjustment information includes second MCS information. The first MCS information indicates the MCS of each of the one or more first SPS transmission occasions, and the second MCS information indicates the MCS of each of the one or more second SPS transmission occasions. Optionally, the MCS indicated by the second MCS information is lower than the MCS indicated by the first MCS information. For example, the modulation order indicated by the second MCS information is lower than the modulation order indicated by the first MCS information. For another example, the code rate indicated by the second MCS information is lower than the code rate indicated by the first MCS information. For still another example, the modulation order indicated by the second MCS information is lower than the modulation order indicated by the first MCS information, and the code rate indicated by the second MCS information is lower than the code rate indicated by the first MCS information. This implementation can be understood as: when the latest reception time Tlatest1 of a picture frame, the time Tsecond1 of the second SPS transmission occasion, and the retransmission time Tretrans1 corresponding to the second SPS transmission occasion satisfy Tlatest1–Tsecond1<Tretrans1, the MCS indicated by the second MCS information included in the adjustment information sent by the network device to the terminal is lower than the MCS indicated by the first MCS information in the first activation information. Optionally, the retransmission time Tretrans1 corresponding to the second SPS transmission occasion is related to the slot configuration of the terminal and the terminal capability. In this implementation, the data transmitted on the first SPS transmission occasion and the data transmitted on the second SPS transmission occasion may belong to the same picture frame. When the second SPS transmission occasion contains sufficient resources, and the latest reception time Tlatest1 of the picture frame, the time Tsecond1 of the second SPS transmission occasion, and the retransmission time Tretrans1 corresponding to the second SPS transmission occasion satisfy Tlatest1–Tsecond1<Tretrans1, the terminal is instructed through the foregoing adjustment information to adopt a lower MCS on the second SPS transmission occasion, so as to improve the reliability of data transmission on the second SPS transmission occasion, reduce the retransmission probability of data transmitted on the second SPS transmission occasion, thereby minimizing the data transmission delay and improving the user's reception experience for XR data.

[0021] In combination with the second aspect, in certain implementations of the second aspect, in addition to the aforementioned first MCS information, the first activation information further includes first FDRA information; in addition to the aforementioned second MCS information, the adjustment information further includes second FDRA information. The first FDRA information indicates the frequency domain resource of each of the one or more first SPS transmission occasions, and the second FDRA information indicates the frequency domain resource of each of the one or more second SPS transmission occasions. Optionally, the frequency domain resources indicated by the second FDRA information are more than the frequency domain resources indicated by the first FDRA information. This implementation can be understood as: when the latest reception time Tlatest1 of a picture frame, the time Tsecond1 of the second SPS transmission occasion, and the retransmission time Tretrans1 corresponding to the second SPS transmission occasion satisfy Tlatest1–Tsecond1<Tretrans1, the MCS indicated by the second MCS information included in the adjustment information sent by the network device to the terminal is lower than the MCS indicated by the first MCS information in the first activation information, and the frequency domain resources indicated by the second FDRA information included in the adjustment information are more than the frequency domain resources indicated by the first FDRA information in the first activation information. Optionally, the retransmission time Tretrans1 corresponding to the second SPS transmission occasion is related to the slot configuration of the terminal and the terminal capability. In this implementation, the data transmitted on the first SPS transmission occasion and the data transmitted on the second SPS transmission occasion may belong to the same picture frame. When the resources included in the second SPS transmission occasion are insufficient, and the latest reception time Tlatest1 of the picture frame, the time Tsecond1 of the second SPS transmission occasion, and the retransmission time Tretrans1 corresponding to the second SPS transmission occasion satisfy Tlatest1–Tsecond1<Tretrans1, by allocating more resources to the second SPS transmission occasion, the reliability of data transmission on the second SPS transmission occasion is improved, so as to reduce the retransmission probability of the data transmitted on the second SPS transmission occasion, thereby reducing the data transmission delay as much as possible and improving the user's reception experience of XR data.

[0022] With reference to the second aspect, in some implementations of the second aspect, in addition to sending to the terminal the aforementioned first activation information including the first MCS information and the adjustment information including the second MCS information, first scheduling information is further sent to the terminal, where the first scheduling information is configured to schedule data transmission on time-domain resources outside the plurality of SPS transmission occasions. Data transmission is performed with the terminal on the time-domain resources outside the plurality of SPS transmission occasions. In this implementation, data transmitted on the first SPS transmission occasion and data transmitted on the second SPS transmission occasion may belong to the same picture frame. When the resources included in the second SPS transmission occasion are insufficient, and the latest reception time Tlatest1 of the picture frame, the time Tsecond1 of the second SPS transmission occasion, and the retransmission time Tretrans1 corresponding to the second SPS transmission occasion satisfy Tlatest1–Tsecond1<Tretrans1, resources outside the SPS transmission occasions are additionally scheduled for transmitting the data of the picture frame, so as to reduce the latency of data transmission as much as possible and improve the user's reception experience of XR data.

[0023] With reference to the second aspect, in some implementations of the second aspect, the aforementioned first activation information is scrambled by a first Radio Network Temporary Identifier (RNTI), and the aforementioned adjustment information is scrambled by a second RNTI. The first RNTI is different from the second RNTI; or, the first RNTI is the same as the second RNTI, both the adjustment information and the first activation information include a first field, and the first field in the adjustment information is set to a predetermined value.

[0024] With reference to the second aspect, in some implementations of the second aspect, the aforementioned configuration information is CG configuration information, the aforementioned transmission occasions are CG transmission occasions, the aforementioned first transmission occasion is a first CG transmission occasion, and the aforementioned second transmission occasion is a second CG transmission occasion. Optionally, the aforementioned performing data transmission with the terminal on one or more first transmission occasions includes: performing data transmission with the terminal on one or more first CG transmission occasions according to the aforementioned CG configuration information.

[0025] In conjunction with the second aspect, in certain implementations of the second aspect, the above CG configuration information may include third MCS information, and the above adjustment information may include fourth MCS information. The third MCS information configures the MCS of each of the one or more first CG transmission occasions, and the fourth MCS information indicates the MCS of each of the one or more second CG transmission occasions. Optionally, the MCS indicated by the fourth MCS information is lower than the MCS configured by the third MCS information. For example, the modulation order indicated by the fourth MCS information is lower than the modulation order configured by the third MCS information. For another example, the code rate indicated by the fourth MCS information is lower than the code rate configured by the third MCS information. For still another example, the modulation order indicated by the fourth MCS information is lower than the modulation order configured by the third MCS information, and the code rate indicated by the fourth MCS information is lower than the code rate configured by the third MCS information. This implementation can be understood as: when the latest reception time Tlatest2 of the picture frame, the time Tsecond2 of the second CG transmission occasion, and the retransmission time Tretrans2 corresponding to the second CG transmission occasion satisfy Tlatest2–Tsecond2<Tretrans2, the MCS indicated by the fourth MCS information included in the adjustment information sent by the network device to the terminal is lower than the MCS configured by the third MCS information in the CG configuration information. Optionally, the retransmission time Tretrans2 corresponding to the second CG transmission occasion is related to the slot configuration of the terminal and the terminal capability. In this implementation, the data transmitted on the first CG transmission occasion and the data transmitted on the second CG transmission occasion may belong to the same picture frame. When the second CG transmission occasion contains sufficient resources, and the latest reception time Tlatest2 of the picture frame, the time Tsecond2 of the second CG transmission occasion, and the retransmission time Tretrans2 corresponding to the second CG transmission occasion satisfy Tlatest2–Tsecond2<Tretrans2, the terminal is instructed to adopt a lower MCS on the second CG transmission occasion through the above adjustment information, so as to improve the reliability of data transmission on the second CG transmission occasion, reduce the retransmission probability of data transmitted on the second CG transmission occasion, thereby minimizing the data transmission delay and improving the user's reception experience of XR data.

[0026] In conjunction with the second aspect, in some implementations of the second aspect, in addition to the aforementioned third MCS information, the CG configuration information further includes third FDRA information; in addition to the aforementioned fourth MCS information, the adjustment information further includes fourth FDRA information. The third FDRA information configures the frequency domain resource of each first CG transmission occasion among the one or more first CG transmission occasions, and the fourth FDRA information indicates the frequency domain resource of each second CG transmission occasion among the one or more second CG transmission occasions. Optionally, the frequency domain resources indicated by the fourth FDRA information are more than the frequency domain resources configured by the third FDRA information. This implementation can be understood as: when the latest reception moment Tlatest2 of the picture frame, the moment Tsecond2 of the second CG transmission occasion, and the retransmission time Tretrans2 corresponding to the second CG transmission occasion satisfy Tlatest2–Tsecond2<Tretrans2, the MCS indicated by the fourth MCS information included in the adjustment information sent by the network device to the terminal is lower than the MCS configured by the third MCS information in the CG configuration information, and the frequency domain resources indicated by the fourth FDRA information included in the adjustment information are more than the frequency domain resources configured by the third FDRA information in the CG configuration information. Optionally, the retransmission time Tretrans2 corresponding to the second CG transmission occasion is related to the slot configuration of the terminal and the terminal capability. In this implementation, the data transmitted on the first CG transmission occasion and the data transmitted on the second CG transmission occasion may belong to the same picture frame. When the resources included in the second CG transmission occasion are insufficient, and the latest reception moment Tlatest2 of the picture frame, the moment Tsecond2 of the second CG transmission occasion, and the retransmission time Tretrans2 corresponding to the second CG transmission occasion satisfy Tlatest2–Tsecond2<Tretrans2, more resources are allocated for the second CG transmission occasion, so as to improve the reliability of data transmission on the second CG transmission occasion, reduce the retransmission probability of data transmitted on the second CG transmission occasion, thereby minimizing the data transmission delay and improving the user's reception experience for XR data.

[0027] In combination with the second aspect, in some implementations of the second aspect, in addition to sending the above-mentioned CG configuration information including the third MCS information and the adjustment information including the fourth MCS information to the terminal, second scheduling information is further sent to the terminal, where the second scheduling information is configured to schedule data transmission on time domain resources other than the plurality of CG transmission occasions described above. Data transmission is performed with the terminal on the time domain resources other than the plurality of CG transmission occasions. In this implementation, data transmitted on a first CG transmission occasion and data transmitted on a second CG transmission occasion may belong to the same picture frame. When the resources included in the second CG transmission occasion are insufficient, and the latest reception time Tlatest2 of the picture frame, the time Tsecond2 of the second CG transmission occasion, and the retransmission time Tretrans2 corresponding to the second CG transmission occasion satisfy Tlatest2–Tsecond2<Tretrans2, resources outside the CG transmission occasions are additionally scheduled for transmitting the data of the picture frame, so as to reduce the latency of data transmission as much as possible and improve the user's experience of receiving XR data.

[0028] In conjunction with the second aspect, in some implementations of the second aspect, the method further comprises: transmitting second activation information to a terminal. The aforementioned performing data transmission with the terminal at one or more first transmission occasions comprises: performing data transmission with the terminal at one or more first CG transmission occasions according to the second activation information. Optionally, the above second activation information includes fifth MCS information, and the above adjustment information includes sixth MCS information. The fifth MCS information indicates the MCS of each first CG transmission occasion among the one or more first CG transmission occasions, and the sixth MCS information indicates the MCS of each second CG transmission occasion among the one or more second CG transmission occasions. Optionally, the MCS indicated by the sixth MCS information is lower than the MCS configured by the fifth MCS information. For example, the modulation order indicated by the sixth MCS information is lower than the modulation order indicated by the fifth MCS information. For another example, the code rate indicated by the sixth MCS information is lower than the code rate indicated by the fifth MCS information. For still another example, the modulation order indicated by the sixth MCS information is lower than the modulation order indicated by the fifth MCS information, and the code rate indicated by the sixth MCS information is lower than the code rate indicated by the fifth MCS information. This implementation can be understood as: when the latest reception time Tlatest2 of a picture frame, the time Tsecond2 of the second CG transmission occasion, and the retransmission time Tretrans2 corresponding to the second CG transmission occasion satisfy Tlatest2–Tsecond2<Tretrans2, the MCS indicated by the sixth MCS information included in the adjustment information transmitted by the network device to the terminal is lower than the MCS indicated by the fifth MCS information in the second activation information. Optionally, the retransmission time Tretrans2 corresponding to the second CG transmission occasion is related to the slot configuration of the terminal and the terminal capability. In this implementation, the data transmitted on the first CG transmission occasion and the data transmitted on the second CG transmission occasion may belong to the same picture frame. When the second CG transmission occasion contains sufficient resources, and the latest reception time Tlatest2 of the picture frame, the time Tsecond2 of the second CG transmission occasion, and the retransmission time Tretrans2 corresponding to the second CG transmission occasion satisfy Tlatest2–Tsecond2<Tretrans2, a lower MCS is indicated to the terminal for use on the second CG transmission occasion through the above adjustment information, so as to improve the reliability of data transmission on the second CG transmission occasion, reduce the retransmission probability of data transmitted on the second CG transmission occasion, thereby minimizing the data transmission delay as much as possible, and improving the user's reception experience for XR data.

[0029] In conjunction with the second aspect, in some implementations of the second aspect, in addition to the aforementioned fifth MCS information, the second activation information further includes fifth FDRA information; in addition to the aforementioned sixth MCS information, the adjustment information further includes sixth FDRA information. The fifth FDRA information indicates a frequency domain resource of each of the one or more first CG transmission occasions, and the sixth FDRA information indicates a frequency domain resource of each of the one or more second CG transmission occasions. Optionally, the frequency domain resources indicated by the sixth FDRA information are more than the frequency domain resources configured by the fifth FDRA information. This implementation can be understood as: when the latest reception time Tlatest2 of a picture frame, the time Tsecond2 of the second CG transmission occasion, and the retransmission time Tretrans2 corresponding to the second CG transmission occasion satisfy Tlatest2–Tsecond2<Tretrans2, the MCS indicated by the sixth MCS information included in the adjustment information sent by the network device to the terminal is lower than the MCS indicated by the fifth MCS information in the second activation information, and the frequency domain resources indicated by the sixth FDRA information included in the adjustment information are more than the frequency domain resources indicated by the fifth FDRA information in the second activation information. Optionally, the retransmission time Tretrans2 corresponding to the second CG transmission occasion is related to the slot configuration of the terminal and the terminal capability. In this implementation, the data transmitted on the first CG transmission occasion and the data transmitted on the second CG transmission occasion may belong to the same picture frame. When the resources included in the second CG transmission occasion are insufficient, and the latest reception time Tlatest2 of the picture frame, the time Tsecond2 of the second CG transmission occasion, and the retransmission time Tretrans2 corresponding to the second CG transmission occasion satisfy Tlatest2–Tsecond2<Tretrans2, by allocating more resources for the second CG transmission occasion, the reliability of data transmission on the second CG transmission occasion is improved, so as to reduce the retransmission probability of data transmitted on the second CG transmission occasion, thereby reducing the data transmission delay as much as possible and improving the user's experience of receiving XR data.

[0030] In conjunction with the second aspect, in some implementations of the second aspect, in addition to transmitting to the terminal the aforementioned second activation information including the fifth MCS information and the adjustment information including the sixth MCS information, third scheduling information is further transmitted to the terminal, where the third scheduling information is configured to schedule data transmission on time domain resources outside the plurality of CG transmission occasions described above. Data transmission is performed with the terminal on the time domain resources outside the plurality of CG transmission occasions. In this implementation, the data transmitted on the first CG transmission occasion and the data transmitted on the second CG transmission occasion may belong to the same picture frame. When the resources included in the second CG transmission occasion are insufficient, and the latest reception time Tlatest2 of the picture frame, the time Tsecond2 of the second CG transmission occasion, and the retransmission time Tretrans2 corresponding to the second CG transmission occasion satisfy Tlatest2–Tsecond2<Tretrans2, resources outside the CG transmission occasions are additionally scheduled for the transmission of the picture frame data, so as to reduce the data transmission delay as much as possible and improve the user's reception experience of XR data.

[0031] In conjunction with the second aspect, in some implementations of the second aspect, the aforementioned second activation information is scrambled by a third RNTI, and the aforementioned adjustment information is scrambled by a fourth RNTI. The third RNTI is different from the fourth RNTI; alternatively, the third RNTI is the same as the fourth RNTI, both the adjustment information and the second activation information include a second field, and the second field in the adjustment information is set to a predetermined value.

[0032] In a third aspect, embodiments of the present application provide an apparatus, which can implement the method in the aforementioned first aspect, or any possible implementation of the first aspect. The apparatus includes corresponding units or modules configured to execute the aforementioned method. The units or modules included in the apparatus may be implemented by means of software and / or hardware. For example, the apparatus may be a terminal, or a chip, a chip system, or a processor that supports the terminal to implement the aforementioned method, or may also be a logic module or software that can implement all or part of the functions of the terminal.

[0033] In a fourth aspect, embodiments of the present application provide an apparatus, which can implement the method in the aforementioned second aspect, or any possible implementation of the second aspect. The apparatus includes corresponding units or modules configured to execute the aforementioned method. The units or modules included in the apparatus may be implemented by means of software and / or hardware. For example, the apparatus may be a network device, or a chip, a chip system, or a processor that supports the network device to implement the aforementioned method, or may also be a logic module or software that can implement all or part of the functions of the network device.

[0034] Fifthly, embodiments of this application provide an apparatus comprising: a processor coupled to a memory for storing instructions, wherein when the instructions are executed by the processor, the apparatus implements the method described in the first aspect or any possible implementation thereof.

[0035] In a sixth aspect, embodiments of this application provide an apparatus comprising: a processor coupled to a memory for storing instructions which, when executed by the processor, cause the apparatus to implement the method described in the second aspect or any possible implementation thereof.

[0036] In a seventh aspect, embodiments of this application provide a computer-readable storage medium having instructions stored thereon, which, when executed, cause a computer to perform the method described in the first aspect or any possible implementation of the first aspect.

[0037] Eighthly, embodiments of this application provide a computer-readable storage medium having instructions stored thereon, which, when executed, cause a computer to perform the methods described in the second aspect or any possible implementation of the second aspect.

[0038] Ninthly, embodiments of this application provide a computer program product including computer program code, which, when run on a computer, causes the computer to perform the method described in the first aspect or any possible implementation of the first aspect.

[0039] In a tenth aspect, embodiments of this application provide a computer program product including computer program code, which, when run on a computer, causes the computer to perform the methods described in the second aspect or any possible implementation of the second aspect.

[0040] Eleventhly, embodiments of this application provide a chip, including: a processor coupled to a memory for storing instructions, wherein when the instructions are executed by the processor, the chip implements the methods described in the first aspect, the second aspect, any possible implementation of the first aspect, or any possible implementation of the second aspect.

[0041] In a twelfth aspect, embodiments of this application provide a communication system, including: the apparatus of the third aspect and the apparatus of the fourth aspect described above.

[0042] In a thirteenth aspect, embodiments of this application provide a communication system, including: the apparatus of the fifth aspect and the apparatus of the sixth aspect described above.

[0043] It is understood that the beneficial effects of the features corresponding to those in aspects two through thirteen in aspect one can be found in the relevant descriptions in aspect one, and will not be repeated here. Attached Figure Description

[0044] Figure 1 A schematic diagram of the communication system used in the embodiments provided in this application;

[0045] Figures 2-5 The diagram illustrates several system frameworks applicable to embodiments of this application;

[0046] Figure 6 A schematic diagram of periodic data is shown;

[0047] Figure 7 This diagram illustrates the impact of Internet Protocol (IP) packet transmission on image frames.

[0048] Figure 8 This diagram illustrates how delay constraints under a semi-persistent scheduling (SPS) mechanism result in no retransmission opportunities.

[0049] Figure 9 This diagram illustrates how latency constraints under a configured grant (CG) mechanism result in no retransmission opportunities.

[0050] Figure 10 A schematic diagram of a data transmission method provided in an embodiment of this application is shown;

[0051] Figure 11A and Figure 11B Two example diagrams are shown for adjusting data transmission on a portion of the transmission timings in a pre-configured transmission timing;

[0052] Figure 12 A schematic diagram of a data transmission method under an SPS mechanism provided in an embodiment of this application is shown;

[0053] Figure 13 , Figure 14A and Figure 14B Three example diagrams are shown illustrating adjustments to data transmission on a portion of the pre-configured SPS transmission timings.

[0054] Figure 15 A schematic diagram of a data transmission method under a CG mechanism provided in an embodiment of this application is shown;

[0055] Figure 16 , Figure 17A and Figure 17B Three example diagrams are shown illustrating adjustments to data transmission during certain CG transmission times within a pre-configured CG transmission timeframe.

[0056] Figure 18 This is a schematic diagram of the structure of a terminal provided in an embodiment of this application;

[0057] Figure 19 This is a schematic diagram of the structure of a device provided in an embodiment of this application;

[0058] Figure 20 This is a schematic diagram of another device provided in an embodiment of this application. Detailed Implementation

[0059] Figure 1 This is a schematic diagram of the architecture of the communication system used in the embodiments of this application. For example... Figure 1 As shown, the communication system includes a wireless access network 100 and a core network 130. Optionally, the communication system 1000 may also include an Internet 140. The wireless access network 100 may include at least one wireless access network device (such as...). Figure 1 110a and 110b in the above), may also include at least one terminal (such as Figure 1 (Referring to 120a-120j in the original text). Terminals connect wirelessly to the wireless access network (WLAN) equipment, which in turn connects to the core network via wireless or wired connections. The core network equipment and the WLAN equipment can be independent devices, or they can integrate the functions of both into a single device. Alternatively, a single device can integrate some core network equipment functions and some WLAN equipment functions. Terminals and WLAN equipment can connect to each other via wired or wireless connections. Figure 1 This is just a schematic diagram; the communication system may also include other network devices, such as relay devices and backhaul devices. Figure 1 It is not shown in the middle.

[0060] The methods and apparatus provided in this application can be used in various communication systems, such as fourth-generation (4G) communication systems, 4.5G communication systems, 5G communication systems, 5.5G communication systems, 6G communication systems, systems integrating multiple communication systems, or future evolved communication systems. Examples include Long Term Evolution (LTE) systems, New Radio (NR) systems, Wireless-Fidelity (WiFi) systems, and communication systems related to the 3rd Generation Partnership Project (3GPP), as well as other such communication systems.

[0061] Wireless access network equipment (sometimes referred to as network equipment in this application) can be a base station, an evolved NodeB (eNodeB), a transmission reception point (TRP), a next-generation NodeB (gNB) in a 5G mobile communication system, a next-generation base station in a 6G mobile communication system, a base station in a future mobile communication system, or an access node in a WiFi system; it can also be a module or unit that performs some of the functions of a base station, for example, it can be a central unit (CU) or a distributed unit (DU). Wireless access network equipment can be a macro base station (such as...) Figure 1 110a in the text), can also be a micro base station or an indoor station (such as... Figure 1 110b) in the above can also be a relay node or a donor node, etc. It is understood that all or part of the functions of the wireless access network device in this application can also be implemented through software functions running on hardware, or through virtualization functions instantiated on a platform (e.g., a cloud platform). The embodiments of this application do not limit the specific technology or specific device form used in the wireless access network device. For ease of description, the following description uses a base station as an example of a wireless access network device.

[0062] A terminal can also be called a terminal device, user equipment (UE), mobile station, mobile terminal, etc. Terminals can be widely used in various scenarios, such as device-to-device (D2D), vehicle-to-everything (V2X) communication, machine-type communication (MTC), Internet of Things (IoT), virtual reality, augmented reality, industrial control, autonomous driving, telemedicine, smart grids, smart furniture, smart offices, smart wearables, smart transportation, smart cities, etc. Terminals can be mobile phones, tablets, computers with wireless transceiver capabilities, wearable devices, vehicles, drones, helicopters, airplanes, ships, robots, robotic arms, smart home devices, etc. The embodiments of this application do not limit the specific technologies or device forms used in the terminals.

[0063] The terminal in this application can also be a VR terminal, AR terminal, or MR terminal. VR terminals, AR terminals, and MR terminals can all be referred to as XR terminals. XR terminals can be, for example, head-mounted devices (such as helmets or glasses), all-in-one devices, televisions, monitors, automobiles, in-vehicle devices, tablets, or smart screens. XR terminals can present XR data to users, and users can experience diverse XR services by wearing or using XR terminals. XR terminals can access networks wirelessly or via wired means, such as through WiFi, 5G, or other systems.

[0064] Base stations and terminals can be fixed or mobile. They can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on water; and they can be deployed in the air on aircraft, balloons, and artificial satellites. The embodiments of this application do not limit the application scenarios of base stations and terminals.

[0065] The roles of base stations and terminals can be relative, for example, Figure 1 The aircraft or drone 120i can be configured as a mobile base station. For terminals 120j accessing the wireless access network 100 via 120i, terminal 120i is a base station; however, for base station 110a, 120i is a terminal, meaning that 110a and 120i communicate via a wireless air interface protocol. Of course, 110a and 120i can also communicate via a base station-to-base station interface protocol; in this case, 120i is also a base station relative to 110a. Therefore, both base stations and terminals can be collectively referred to as communication devices. Figure 1 The 110a and 110b in the text can be referred to as communication devices with base station functions. Figure 1 The 120a-120j in the text can be referred to as communication devices with terminal functions.

[0066] Communication between base stations and terminals, between base stations, and between terminals can be conducted using licensed spectrum, unlicensed spectrum, or both simultaneously. Communication can be conducted using spectrum below 6 GHz, spectrum above 6 GHz, or both simultaneously. The embodiments of this application do not limit the spectrum resources used for wireless communication.

[0067] In the embodiments of this application, the functions of the base station can be executed by modules (such as chips) within the base station, or by a control subsystem that includes base station functions. This control subsystem, including base station functions, can be a control center in the application scenarios of the aforementioned terminals, such as smart grids, industrial control, intelligent transportation, and smart cities. Similarly, the functions of the terminal can be executed by modules (such as chips or modems) within the terminal, or by a device that includes terminal functions.

[0068] In this application, the base station sends downlink signals or downlink information to the terminal, with the downlink information carried on the downlink channel; the terminal sends uplink signals or uplink information to the base station, with the uplink information carried on the uplink channel; and the terminal sends sidelink signals or sidelink information to the terminal, with the sidelink information carried on the sidelink channel. The information can be control information or data information.

[0069] XR technology boasts advantages such as multi-view perspectives and strong interactivity, offering users a completely new experience and possessing immense application value and commercial potential. XR encompasses technologies like VR, AR, and MR, and can be widely applied in numerous fields, including entertainment, gaming, healthcare, advertising, industry, online education, and engineering. VR technology primarily refers to rendering visual and audio scenes to simulate the sensory stimulation of the user's senses in the real world as closely as possible. In VR, users typically wear XR terminals (such as head-mounted displays) to simulate visual and / or auditory experiences. VR technology can also track user movements to update the simulated visual and / or auditory content in real time. AR technology mainly refers to providing additional visual and / or auditory information or artificially generated content within the user's perceived real-world environment. The user's access to the real-world environment can be direct (e.g., without sensing, processing, or rendering) or indirect (e.g., transmitted through sensors), followed by further enhancement processing. MR technology inserts virtual elements into physical scenes, aiming to provide users with an immersive experience where these elements are part of the real-world environment.

[0070] The embodiments provided in this application are applicable to a variety of different scenarios. Figures 2-5 Several system framework diagrams applicable to embodiments of this application are shown.

[0071] Figure 2 A schematic diagram of a scenario to which an embodiment of this application applies is shown. Figure 2The diagram illustrates a system 200, comprising a server 210, a core network and an access network 220 (which may be simply referred to as the transmission network 220, such as an LTE, 5G, or 6G network), and a terminal 230. The server 210 is used for encoding, decoding, and rendering XR source data; the transmission network 220 is used for transmitting XR data; and the terminal 230 provides users with diverse XR experiences through processing the XR data. It is understood that other devices may also be included between the transmission network 220 and the terminal 230, such as other terminals (e.g., mobile phones, laptops, or in-vehicle terminals) and / or network devices (e.g., relay devices, integrated access backhaul (IAB) devices, WiFi routers, or WiFi access points). The terminal 230 obtains XR data from the transmission network 220 with the help of these other terminals and / or network devices.

[0072] Figure 3 A schematic diagram illustrating another scenario to which this application embodiment applies is shown. Figure 3 The diagram illustrates a system 300, comprising a terminal 320 and other terminals 310. Other terminals 310 are terminals other than terminal 320. Other terminals 310 can transmit XR data to terminal 320. For example, other terminals 310 can project XR data onto terminal 320. Alternatively, other terminals 310 and terminal 320 may be in-vehicle terminals, allowing for XR data interaction between them. It is understood that other terminals 310 can also connect to a transmission network (e.g., LTE, 5G, or 6G network) to obtain XR data from the transmission network or to send data to the transmission network.

[0073] Figure 4 A schematic diagram illustrating another scenario to which this application embodiment applies is shown. Figure 4 The diagram illustrates a system 400, comprising a terminal 430, a WiFi router or WiFi access point 420 (hereinafter referred to as WiFi device 420), and other terminals 410. Other terminals 410 are terminals other than terminal 430. Other terminals 410 can transmit XR data to terminal 430 via WiFi device 420. For example, other terminals 410 may be mobile devices, WiFi device 420 may be a WiFi router, WiFi access point, or set-top box, and terminal 430 may be a television device, smart screen device, or tablet device. The mobile device can project XR data onto the television device, smart screen device, or tablet device for display to the user via the WiFi router, WiFi access point, or set-top box.

[0074] Figure 5 A schematic diagram illustrating another scenario to which this application embodiment applies is shown. Figure 5The diagram illustrates a system 500, comprising a server 510, a fixed-line network 520, a WiFi router or WiFi access point 530 (hereinafter referred to as WiFi device 530), and a terminal 540. The server 510 can be used to encode, decode, and render XR source data, and transmit XR data to the terminal 540 via the fixed-line network 520 and the WiFi device 530. For example, the fixed-line network 520 is a carrier network, the WiFi device 530 is a WiFi router, WiFi access point, or set-top box, and the server 510 uses the carrier network 520 and the WiFi device 530 to transmit or project XR data to the terminal 540.

[0075] Understandable. Figures 2-5 The embodiments of this application are only given as illustrations of several scenarios that can be applied, and there is no limitation on the applicable scenarios of the embodiments of this application.

[0076] The technical solution of this application will be described below with reference to the accompanying drawings.

[0077] In addition, to facilitate understanding of the technical solution of this application, the characteristics of XR or video services, as well as the configured grant (CG) mechanism and the semi-persistent scheduling (SPS) mechanism, will be briefly introduced first.

[0078] For XR or video service data, it typically has a certain frame rate and periodicity. Figure 6 For example, a diagram illustrating the temporal distribution of frames in an XR service at a frame rate of 60 frames per second (FPS) is provided. Figure 6 As can be seen, at 60 FPS, a frame appears or is reached every 1000 / 60≈16.67ms.

[0079] Other possible frame rates include 30 FPS, 90 FPS, and 120 FPS. Wireless access network devices can obtain the frame rate of XR or video service data in a variety of different ways.

[0080] For example, a radio access network (RAN) device can obtain the frame rate of XR or video service data through configuration information of the quality of service (QoS) stream corresponding to the data, such as a QoS profile. Alternatively, the RAN device can obtain the frame rate of XR or video service data by detecting the arrival time interval of data packets in the QoS stream. Furthermore, a terminal can report the uplink data frame rate or frame rate-related information to the RAN device through auxiliary information, such as the UEAssistanceInformation cell.

[0081] Terminals can also obtain the frame rate of XR or video service data in a variety of different ways.

[0082] For example, a terminal can obtain the frame rate of XR or video service data through configuration information of the QoS stream corresponding to the data, such as QoS rules. Alternatively, a terminal can obtain the frame rate of XR or video service data by detecting the arrival time interval of data packets in the QoS stream. Furthermore, a terminal can communicate the frame rate of application layer data, or frame rate-related information, to lower-level protocol layers (such as the RRC layer) through inter-protocol layer interactions.

[0083] The CG mechanism is a data transmission mechanism suitable for periodic uplink service transmission. Through the CG mechanism, resources (also called CG resources) for uplink data transmission can be allocated to the terminal during uplink data transmission using RRC messages or downlink control information (DCI). This allows the terminal to periodically reuse these allocated resources for uplink data transmission. In the time domain, CG resources can also be referred to as CG transmission opportunities. The CG mechanism is sometimes also called a configured scheduling (CS) mechanism or a grant-free (GF) mechanism.

[0084] The CG mechanism includes two types: CG Type 1 and CG Type 2. The workflows of these two CG types are described below.

[0085] ·CG Type 1:

[0086] In CG type 1, the radio access network device provides CG configuration information to the terminal via RRC messages, such as CG cycle information and CG resource information. The CG configuration information is also used to activate CG configuration. After receiving the CG configuration information, the terminal can send uplink data to the radio access network device based on the CG cycle information and CG resource information.

[0087] In CG Type 1, the radio access network device can also instruct the terminal to activate the CG configuration by sending a DCI to the terminal. After receiving the DCI, the terminal can release the CG resource, or it can be understood as stopping / pausing uplink data transmission on the CG resource.

[0088] ·CG Type 2:

[0089] In CG type 2, the radio access network (RAN) device provides CG configuration information, such as CG cycle information, to the terminal via RRC messages. The RAN device further instructs the terminal on CG resource information via DCI. Upon receiving the DCI, the terminal can send uplink data to the RAN device based on the CG cycle information and CG resource information. The aforementioned DCI can also be understood as indicating and activating CG resources.

[0090] In CG Type 2, the radio access network device can also instruct the terminal to activate the CG configuration by sending another DCI to the terminal. After receiving the DCI, the terminal can release the CG resource, or it can be understood as stopping / pausing uplink data transmission on that CG resource.

[0091] The SPS mechanism is a data transmission mechanism suitable for downlink periodic service transmission. Through the SPS mechanism, resources (also called SPS resources) can be allocated to the terminal for downlink data transmission during downlink data transmission using RRC messages or DCI, allowing the terminal to periodically reuse these allocated resources for downlink data reception. In the time domain, SPS resources can also be referred to as SPS transmission opportunities.

[0092] In the SPS mechanism, the radio access network (RAN) device provides SPS configuration information, such as SPS periodicity information and / or SPS resource information, to the terminal via RRC messages. The RAN device further instructs the terminal to activate the SPS configuration via DCI. Upon receiving the DCI, the terminal can receive downlink data from the RAN device based on the SPS periodicity information and SPS resource information.

[0093] In the SPS mechanism, the radio access network device can also instruct the terminal to activate the SPS configuration by sending another DCI. After receiving the DCI, the terminal can release the SPS resource, or it can be understood as stopping / pausing downlink data reception on that SPS resource.

[0094] As mentioned earlier, XR or video service data typically has a certain frame rate and periodicity, so CG and SPS mechanisms are also suitable for transmitting such periodic XR or video service data.

[0095] XR data is typically transmitted in the form of video frames, and a single video frame can usually be processed into multiple data packets. For example, a single video frame can be divided into multiple Internet Protocol (IP) packets, transmitted from the terminal to the base station of the radio access network (RAN), then through the core network, and finally to the server for rendering. Because video frames usually use source coding for data compression, the multiple IP packets of a single video frame generally have certain dependencies. Figure 7 As shown, if an IP packet fails to transmit during transmission, the entire frame cannot be recovered. Only when all IP packets corresponding to that frame are transmitted successfully can the frame be correctly recovered at the receiving end.

[0096] It is evident that during XR data transmission, if a portion of a frame's data transmission fails or exceeds the latency budget, the frame cannot be correctly received even if the rest of the data transmission for that frame is correct. Therefore, how to efficiently utilize limited wireless resources to improve XR data transmission efficiency is a pressing issue that needs to be addressed.

[0097] Terminals generally possess certain terminal capabilities, and based on these capabilities, decoding and recovering downlink data and control information typically requires a certain processing time. For example, the reception of downlink data (such as downlink data carried on the physical downlink shared channel (PDSCH)) generally requires a certain processing time. For instance, let's assume the processing time for receiving downlink data is two time slots. Similarly, the reception of control information (such as control information carried on the physical downlink control channel (PDCCH)) also generally requires a certain processing time. For example, let's assume the processing time for receiving control information is two time slots.

[0098] by Figure 8 For example, the effect of latency constraints on frame transmission under an SPS mechanism is shown. Figure 8The diagram illustrates the 11 time slots between the arrival time of the downlink frame and the latest reception time of the frame. Due to the strict transmission latency requirements of XR data, all data in this downlink frame must be correctly received by the receiving side (e.g., the terminal) within these 11 time slots (i.e., before the latest reception time of the frame shown in the diagram) to ensure a satisfactory user experience. If the receiving side correctly receives all data of the downlink frame after the latest reception time of the frame shown in the diagram, the user's reception experience will be degraded due to latency. In the diagram, "D" represents a downlink time slot used to transmit downlink signals or downlink information; "U" represents an uplink time slot used to transmit uplink signals or uplink information. Figure 8 The illustrated time slot distribution can be understood as the time slot configuration set by the wireless access network equipment for the terminal. Among them, downlink time slots 3-8 belong to the SPS transmission time slots.

[0099] The retransmission time corresponding to the SPS transmission timing can be related to the terminal's time slot configuration and terminal capabilities.

[0100] For example, if the terminal is Figure 8 During the first SPS transmission, the terminal attempts to receive downlink data from the network device. After two time slots of processing time, a reception error is determined. At this point, the terminal needs to send a negative acknowledgment (NACK) to the network device to allow the network device to retransmit the erroneously received data. Figure 8 Only the second "U" time slot can satisfy the terminal's NACK feedback after processing time of 2 time slots. Therefore, the network device can retransmit the erroneously received data to the terminal in a "D" time slot before the latest reception time of the frame. Figure 8 The retransmission timings corresponding to the SPS transmission timings indicated by the diagonal lines are all in a "D" time slot before the latest reception time of the frame.

[0101] For example, if the terminal is in Figure 8 In the SPS transmission timing indicated by the dotted lines (the fifth or sixth SPS transmission timing), an attempt is made to receive downlink data from the network device. After processing time of two time slots, a reception error is determined. At this point, the terminal has no opportunity to send a NACK (Not Accepted Acknowledgement) to the network device for this reception error before the latest reception time of the frame. This is because the aforementioned time slot configuration and terminal capabilities cause the retransmission time corresponding to the SPS transmission timing indicated by the dotted lines to exceed the latest reception time of the frame. Consequently, the partially received erroneous data in this frame has no chance to be retransmitted, making it impossible for this frame to be correctly recovered on the receiving side.

[0102] Again Figure 9For example, the impact of latency constraints on frame transmission under a CG mechanism is illustrated. As in the example above, consider a terminal with a processing time of two time slots for receiving control information. Figure 8 Similarly, the retransmission time corresponding to the CG transmission timing can also be related to the terminal's time slot configuration and terminal capabilities. Figure 9 In a scene, the uplink data of the frame that was incorrectly transmitted between the two CG transmission times indicated by dotted patterns before the latest reception time of a frame is not retransmitted due to time delay constraints. This is because... Figure 9 The illustrated time slot configuration and the aforementioned terminal capabilities cause the retransmission time corresponding to the CG transmission timing indicated by the dot pattern to exceed the latest reception time of the image frame, thus making it impossible for this image frame to be correctly recovered on the receiving side.

[0103] This application provides a data transmission method that, by timely adjusting data transmission at pre-configured transmission times, allows the pre-configured transmission times to better adapt to the requirements of XR data regarding transmission latency, etc., and can more efficiently utilize pre-configured wireless resources to improve the transmission efficiency of XR data, thereby enhancing the user experience. It is understood that the method provided in this application is not limited to the type of data service it applies to; it is also applicable to data service types other than XR and / or video data services.

[0104] Figure 10 This is an interactive schematic diagram of a data transmission method 1000 provided in an embodiment of this application. Figure 10 This application illustrates the method using wireless access network equipment and terminals as examples of the entities executing the interaction, but it does not limit the entities executing the interaction. For example, Figure 10 The wireless access network device in the text can also be a chip, chip system, or processor that supports the implementation of the method in the wireless access network device, or it can be a logic module or software that can implement all or part of the functions of the wireless access network device. Figure 10 The terminal in this context can also be a chip, chip system, or processor that supports the implementation of this method on the terminal, or it can be a logic module or software that can implement all or part of the terminal's functions. For example... Figure 10 As shown, the method 1000 of this embodiment may include part 1010, part 1020, part 1030 and part 1040.

[0105] Part 1010: The wireless access network device sends configuration information to the terminal, and the terminal receives the configuration information accordingly. This configuration information is used to configure multiple transmission opportunities.

[0106] 1020: The terminal and the wireless access network device transmit data at one or more first transmission times, which are a subset of the aforementioned multiple transmission times.

[0107] Part 1030: The radio access network device sends adjustment information to the terminal, and the terminal receives the adjustment information accordingly. This adjustment information indicates data transmission at one or more second transmission times, which are a subset of the aforementioned plurality of transmission times, and which differ from the aforementioned one or more first transmission times. This adjustment information may be included in the DCI and carried by the PDCCH.

[0108] Part 1040: The wireless access network device transmits data with the terminal at one or more second transmission opportunities. Accordingly, the terminal transmits data with the wireless access network device at one or more second transmission opportunities based on adjustment information.

[0109] It is understandable that in method 1000, part 1020 is executed after part 1010, and part 1040 is executed after part 1030, but the execution order of other parts is not limited.

[0110] like Figure 11A As shown, the wireless access network device pre-configures multiple transmission opportunities for the terminal using configuration information, and adjusts data transmission on some of these transmission opportunities using adjustment information. Among the pre-configured transmission opportunities, the one adjusted by the adjustment information is called the second transmission opportunity, and the one not adjusted by the adjustment information is called the first transmission opportunity. On the second transmission opportunity, the terminal transmits data with the wireless access network device according to the adjustment information. Data transmission on the first transmission opportunity, however, is not affected by the adjustment information. Figure 11A This example only considers receiving adjustment information in the transmission timing preceding the second transmission timing, but it does not limit the timing of receiving adjustment information. Figure 11A In this case, as long as the time of receiving the adjustment information is no later than the second transmission opportunity, it is acceptable.

[0111] For example Figure 11B As shown, the wireless access network device pre-configures multiple transmission opportunities for the terminal using configuration information, and these transmission opportunities occur periodically. The aforementioned adjustment information can adjust data transmission during the second transmission opportunity within a cycle without affecting data transmission in subsequent cycles. For example, in... Figure 11BIn the diagram, the terminal receives adjustment information within the first cycle. Therefore, this adjustment information adjusts the last two transmission opportunities within this cycle, making the last two transmission opportunities the second transmission opportunity. The other transmission opportunities within this cycle and the transmission opportunities in subsequent cycles remain the first transmission opportunities. Thus, the adjustment indicated by this adjustment information can also be understood as a temporary adjustment. The meaning of "temporary" is that this adjustment information only affects the transmission opportunities within the cycle in which the adjustment information is received, and does not affect the transmission opportunities outside the cycle in which the adjustment information is received.

[0112] In method 1000, the configuration information can pre-configure multiple transmission opportunities for periodic data transmission. The adjustment information can adjust the data transmission on some of the pre-configured transmission opportunities in a timely manner according to the actual data transmission needs, so that the pre-configured transmission opportunities can better adapt to the requirements of data (such as XR data) on transmission latency, etc., and can more efficiently utilize the pre-configured wireless resources to improve data transmission efficiency, thereby enhancing the user experience.

[0113] Figure 12 This is an interactive diagram illustrating a specific implementation of method 1000, method 1200. Method 1200 can be understood as a specific implementation of method 1000 under the SPS mechanism. Method 1200 includes parts 1210, 1220, 1230, and 1240, which correspond to parts 1010, 1020, 1030, and 1040 of method 1000, respectively.

[0114] Part 1210: The radio access network device sends SPS configuration information to the terminal, and the terminal receives the SPS configuration information accordingly. This SPS configuration information is used to configure multiple SPS transmission opportunities. That is, the configuration information in method 1000 is SPS configuration information, and the transmission opportunity is an SPS transmission opportunity. The SPS configuration information can be carried by an RRC message, through which the terminal can know the time domain position of the SPS transmission opportunity.

[0115] Section 1220: The terminal transmits data with the radio access network device during one or more first SPS transmission opportunities, where the one or more first SPS transmission opportunities are a subset of multiple SPS transmission opportunities. That is, the first transmission opportunity in method 1000 is a first SPS transmission opportunity. Specifically, under the SPS mechanism, the radio access network device sends downlink data to the terminal during one or more first SPS transmission opportunities, and correspondingly, the terminal receives downlink data from the radio access network device during these one or more first SPS transmission opportunities.

[0116] Optionally, method 1200 further includes section 1250: the radio access network device sends first activation information to the terminal, the first activation information being used to activate data transmission on one or more first SPS transmission opportunities. Accordingly, the terminal receives the first activation information from the radio access network device, and in section 1220, the terminal performs data transmission with the radio access network device on one or more first SPS transmission opportunities based on the first activation information. The first activation information can be understood as being used to activate SPS transmission opportunities pre-configured by SPS configuration information. The first activation information may be included in the DCI and carried by the PDCCH.

[0117] It is understood that, in the absence of the adjustment information in section 1230, the one or more SPS transmission times configured in the SPS configuration information are all the first SPS transmission times. That is, in the absence of the adjustment information in section 1230, the terminal will transmit data with the wireless access network device on one or more SPS transmission times pre-configured in the configuration information according to the first activation information.

[0118] Optionally, the first activation information is scrambled by a first radio network temporary identifier (RNTI), and the aforementioned adjustment information is scrambled by a second RNTI.

[0119] In one possible design, the first RNTI is different from the second RNTI. In this case, the terminal can distinguish between the first activation information and the adjustment information through the RNTI. Optionally, the first RNTI is a configured scheduling RNTI (CS-RNTI), and the second RNTI is another RNTI different from the CS-RNTI. For example, the second RNTI can be called CS-RNTI-Type2, or it can be any other RNTI different from the CS-RNTI. This application does not limit this.

[0120] In another possible design, the first RNTI is identical to the second RNTI, and both the adjustment information and the first activation information include a first field. The first field in the adjustment information is set to a predetermined value. In this case, the terminal can distinguish between the first activation information and the adjustment information through the first field; that is, when the terminal detects that the first field is set to a predetermined value, it can identify the information as the aforementioned adjustment information. Optionally, both the first RNTI and the second RNTI are CS-RNTIs. Optionally, the first field can be the redendancy version (RV) field in the DCI, and the predetermined value can be a reserved value other than 0.

[0121] Part 1230: The wireless access network device sends adjustment information to the terminal, and the terminal receives the adjustment information accordingly. This adjustment information is used to indicate data transmission on one or more second SPS transmission times, which are a subset of the aforementioned plurality of SPS transmission times, and which are different from the aforementioned one or more first SPS transmission times. That is, the second transmission time in method 1200 is a second SPS transmission time.

[0122] Section 1240: The radio access network device transmits data with the terminal during one or more second SPS transmission opportunities. Accordingly, the terminal transmits data with the radio access network device during one or more second SPS transmission opportunities based on adjustment information. Specifically, under the SPS mechanism, the radio access network device sends downlink data to the terminal during one or more second SPS transmission opportunities, and correspondingly, the terminal receives downlink data from the radio access network device during these one or more second SPS transmission opportunities.

[0123] In method 1200, the wireless access network device can adjust the terminal's data transmission during pre-configured SPS transmission times in a timely manner by adjusting information. This allows the pre-configured SPS transmission times to better adapt to data requirements regarding transmission latency, etc., and to more efficiently utilize pre-configured SPS resources to improve data transmission efficiency, thereby enhancing the user experience. Simultaneously, this method does not affect data transmission during other pre-configured SPS transmission times, improving the user's data reception experience while minimizing the impact on other data transmissions.

[0124] by Figure 13 For example, after receiving SPS configuration information from the radio access network device, the terminal can determine the period of the SPS transmission opportunity and its time-domain distribution within that period, thus identifying the position of the SPS transmission opportunity in the time domain (as indicated by the background in the figure). Subsequently, the terminal receives the first activation information from the radio access network device, thereby activating data transmission on the pre-configured SPS transmission opportunity. The terminal then... Figure 13 The SPS transmission timing illustrated in the diagram received adjustment information within its cycle. This adjustment information was used to adjust the data transmission of the last two SPS transmission timings within that cycle. Therefore, in addition to Figure 13 The last two SPS transmission opportunities within the illustrated SPS transmission opportunity period are the second SPS transmission opportunities, while the other SPS transmission opportunities are the first SPS transmission opportunities. During the first SPS transmission opportunity, the terminal can receive downlink data from the radio access network device based on the first activation information, and during the second SPS transmission opportunity, it receives downlink data from the radio access network device based on the adjustment information.

[0125] In a possible implementation of the method 1200, the first activation information includes first modulation and coding scheme (MCS) information, and the adjustment information includes second MCS information. The first MCS information indicates the MCS of each of the one or more first SPS transmission occasions, and the second MCS information indicates the MCS of each of the one or more second SPS transmission occasions. Optionally, the MCS indicated by the second MCS information is lower than the MCS indicated by the first MCS information. For example, the modulation order indicated by the second MCS information is lower than the modulation order indicated by the first MCS information. For another example, the code rate indicated by the second MCS information is lower than the code rate indicated by the first MCS information. For still another example, the modulation order indicated by the second MCS information is lower than the modulation order indicated by the first MCS information, and the code rate indicated by the second MCS information is lower than the code rate indicated by the first MCS information. This implementation can be understood as: when the latest reception time Tlatest1 of a picture frame, the time Tsecond1 of the second SPS transmission occasion, and the retransmission time Tretrans1 corresponding to the second SPS transmission occasion satisfy Tlatest1–Tsecond1<Tretrans1, the MCS indicated by the second MCS information contained in the adjustment information sent by the radio access network device to the terminal is lower than the MCS indicated by the first MCS information in the first activation information. Optionally, the retransmission time Tretrans1 corresponding to the second SPS transmission occasion is related to the slot configuration of the terminal and the terminal capability. For the description that the retransmission time corresponding to the SPS transmission occasion is related to the slot configuration of the terminal and the terminal capability, reference may be made to the previous description for Figure 8 , which will not be repeated herein.

[0126] In this implementation, the data transmitted on the first SPS transmission occasion and the data transmitted on the second SPS transmission occasion may belong to the same picture frame. When the second SPS transmission occasion contains sufficient SPS resources, and the latest reception time Tlatest1 of the picture frame, the time Tsecond1 of the second SPS transmission occasion, and the retransmission time Tretrans1 corresponding to the second SPS transmission occasion satisfy Tlatest1–Tsecond1<Tretrans1, the adjustment information described above is used to indicate to the terminal that a lower MCS is adopted on the second SPS transmission occasion, so as to improve the reliability of data transmission on the second SPS transmission occasion, reduce the retransmission probability of data transmitted on the second SPS transmission occasion, thereby minimizing the data transmission delay and improving the user's data reception experience.

[0127] In this application, the retransmission time corresponding to a transmission occasion (for example, the retransmission time corresponding to the second SPS transmission occasion or the retransmission time corresponding to the second CG transmission occasion) may be understood as the time interval or the shortest time interval that needs to be waited for to retransmit the data on the transmission occasion. In this application, the latest reception moment of a picture frame may be understood as that the receiving side (for example, a terminal) can successfully recover the picture frame if it completes the reception of the picture frame data no later than this latest reception moment; if the reception of the picture frame data is completed after this moment, the picture frame cannot be successfully recovered.

[0128] Still taking Figure 13 as an example, there are 6 SPS transmission occasions in total within the period of the SPS transmission occasion illustrated in the figure, and an example is given in which each first SPS transmission occasion configured by the SPS configuration information can transmit 10000 bits of data, and the transmitted picture frame has a total of 50000 bits of data. Figure 13 also illustrates the latest reception moment Tlatest1 of the picture frame, the moment Tsecond1 of the second SPS transmission occasion, and the retransmission time Tretrans1 corresponding to the second SPS transmission occasion. The radio access network device transmits a total of 40000 bits of data on the first four first SPS transmission occasions within the period of the SPS transmission occasion. Taking Figure 8 the illustrated scenario as an example, for the last two SPS transmission occasions within the period of the SPS transmission occasion, due to the influence of the delay constraint required by the picture frame, Tlatest1–Tsecond1<Tretrans1, and the resources of these two SPS transmission occasions are sufficient to carry the remaining 10000 bits of the picture frame. Therefore, the radio access network device may send adjustment information to the terminal, instructing the terminal that the data transmission on these two second SPS transmission occasions will temporarily reduce the MCS. For example, after reducing the MCS, each second SPS transmission occasion can carry 5000 bits of data, so that the reliability of data transmission on these two second SPS transmission occasions can be improved, the retransmission probability of data transmitted on these two second SPS transmission occasions can be reduced, so as to avoid as much as possible the reception failure of the entire picture frame caused by the fact that retransmission is required but cannot be completed within the specified time.

[0129] In another possible implementation of the method 1200, in addition to the aforementioned first MCS information, the first activation information further includes first frequency domain allocation assignment (FDRA) information; in addition to the aforementioned second MCS information, the adjustment information further includes second FDRA information. The first FDRA information indicates a frequency domain resource of each of the one or more first SPS transmission occasions, and the second FDRA information indicates a frequency domain resource of each of the one or more second SPS transmission occasions. Optionally, the MCS indicated by the second MCS information is lower than the MCS indicated by the first MCS information; the frequency domain resource indicated by the second FDRA information is more than the frequency domain resource indicated by the first FDRA information. This implementation can be understood as: when the latest reception moment Tlatest1 of a picture frame, the moment Tsecond1 of the second SPS transmission occasion, and the retransmission time Tretrans1 corresponding to the second SPS transmission occasion satisfy Tlatest1–Tsecond1<Tretrans1, the MCS indicated by the second MCS information included in the adjustment information sent by the radio access network device to the terminal is lower than the MCS indicated by the first MCS information in the first activation information, and the frequency domain resource indicated by the second FDRA information included in the adjustment information is more than the frequency domain resource indicated by the first FDRA information in the first activation information. Optionally, the retransmission time Tretrans1 corresponding to the second SPS transmission occasion is related to the slot configuration of the terminal and the terminal capability. For the description that the retransmission time corresponding to the SPS transmission occasion is related to the slot configuration of the terminal and the terminal capability, reference may be made to the foregoing description for Figure 8 , which is not repeated herein.

[0130] In this implementation, the data transmitted on the first SPS transmission occasion and the data transmitted on the second SPS transmission occasion may belong to the same picture frame. When the resources included in the second SPS transmission occasion are insufficient, and the latest reception moment Tlatest1 of the picture frame, the moment Tsecond1 of the second SPS transmission occasion, and the retransmission time Tretrans1 corresponding to the second SPS transmission occasion satisfy Tlatest1–Tsecond1<Tretrans1, more resources are allocated for the second SPS transmission occasion, so as to improve the reliability of data transmission on the second SPS transmission occasion, reduce the retransmission probability of data transmitted on the second SPS transmission occasion, thereby reducing the data transmission delay as much as possible, and improving the user's data reception experience.

[0131] (to) Figure 14AFor example, there are 5 SPS transmission occasions in the period of the SPS transmission occasions illustrated in the figure, and each first SPS transmission occasion configured by the SPS configuration information can transmit 10000 bits of data, and the transmitted picture frame has a total of 50000 bits of data as an example. Figure 14A The figure also illustrates the latest reception time Tlatest1 of the picture frame, the time Tsecond1 of the second SPS transmission occasion, and the retransmission time Tretrans1 corresponding to the second SPS transmission occasion. The radio access network device transmits a total of 40000 bits of data on the first four first SPS transmission occasions within the period of the SPS transmission occasions. For the last SPS transmission occasion within the period of the SPS transmission occasions, similar to Figure 8 Taking the described reason as an example, due to the influence of the delay constraint required by the picture frame, Tlatest1–Tsecond1<Tretrans1. At this time, if the MCS on this second SPS transmission occasion is reduced through the adjustment information, the number of bits that can be carried on the second SPS transmission occasion will decrease, and the remaining 10000 bits cannot be fully carried. Therefore, in this case, in addition to the aforementioned second MCS information for reducing the MCS on the second SPS transmission occasion, the adjustment information further includes second FDRA information, which is used to temporarily increase the frequency domain resources on the second SPS transmission occasion, so that the remaining 10000 bits can still be fully carried while the MCS on the second SPS transmission occasion is reduced. At the same time, due to the reduction of the MCS, the reliability of data transmission on this second SPS transmission occasion can be improved, and the retransmission probability of data transmitted on this second SPS transmission occasion can be reduced, so as to avoid as much as possible the reception failure of the entire picture frame caused by the need for retransmission but the failure to complete the retransmission within the specified time.

[0132] In another possible implementation of the method 1200, in addition to sending to the terminal the above first activation information including the first MCS information and the adjustment information including the second MCS information, the method 1200 further includes: the radio access network device sends first scheduling information to the terminal, where the first scheduling information is used to schedule data transmission on time domain resources other than the aforementioned multiple SPS transmission occasions; and performs data transmission with the terminal on the time domain resources other than the multiple SPS transmission occasions. Correspondingly, the terminal receives the first scheduling information, and performs data transmission with the radio access network device on the time domain resources other than the multiple SPS transmission occasions according to the first scheduling information. The data transmission on the time domain resources outside the SPS transmission occasions may also be referred to as non-SPS data transmission.

[0133] In this embodiment, the data transmitted at the first SPS transmission occasion and the data transmitted at the second SPS transmission occasion may belong to the same picture frame. When the resources included in the aforementioned second SPS transmission occasion are insufficient, and the latest reception time Tlatest1 of the picture frame, the time Tsecond1 of the second SPS transmission occasion, and the retransmission time Tretrans1 corresponding to the second SPS transmission occasion satisfy Tlatest1–Tsecond1<Tretrans1, resources outside the SPS transmission occasion are additionally scheduled for transmission of the picture frame data, so as to reduce the data transmission delay as much as possible and improve the user's data reception experience.

[0134] Take Figure 14B as an example, there are a total of 5 SPS transmission occasions within the period of the SPS transmission occasion illustrated in the figure, taking an example that each first SPS transmission occasion configured by the SPS configuration information can transmit 10000 bits of data, and the transmitted picture frame has a total of 50000 bits of data. Figure 14B also illustrates the latest reception time Tlatest1 of the picture frame, the time Tsecond1 of the second SPS transmission occasion, and the retransmission time Tretrans1 corresponding to the second SPS transmission occasion. The radio access network device transmits a total of 40000 bits of data on the first four first SPS transmission occasions within the period of the SPS transmission occasion. For the last SPS transmission occasion within the period of the SPS transmission occasion, similar to Figure 8 taking the described reason as an example, due to the influence of the delay constraint required by the picture frame, Tlatest1–Tsecond1<Tretrans1 is satisfied. At this time, if the MCS on this second SPS transmission occasion is reduced through adjustment information, the number of bits that can be carried on the second SPS transmission occasion will decrease, for example, to 5000 bits. Therefore, at this time, in addition to sending the adjustment information including the second MCS information to the terminal, the radio access network device further sends first scheduling information to the terminal, for scheduling time domain resources outside the SPS transmission occasion (as illustrated by the horizontal stripes in the figure), so that the additionally scheduled time domain resources can carry the remaining 5000 bits. By reducing the MCS on the second SPS transmission occasion, the reliability of data transmission on this second SPS transmission occasion can be improved, the retransmission probability of data transmitted on this second SPS transmission occasion can be reduced, so as to avoid the reception failure of the entire picture frame caused by the need for retransmission but the failure to complete the retransmission within the specified time as much as possible.

[0135] Optionally, method 1200 further includes: the radio access network device sending SPS deactivation information to the terminal, the SPS deactivation information being used to configure SPS deactivation. The terminal receives the SPS deactivation information and, based on the SPS deactivation information, stops / suspends downlink data reception during SPS transmission. The SPS deactivation information may be included in the DCI and carried via the PDCCH.

[0136] Figure 15 This is an interactive diagram illustrating another specific implementation of method 1000, method 1500. Method 1500 can be understood as a specific implementation of method 1000 under the CG mechanism. Method 1500 includes parts 1510, 1520, 1530, and 1540, which correspond to parts 1010, 1020, 1030, and 1040 of method 1000, respectively.

[0137] Part 1510: The wireless access network device sends CG configuration information to the terminal, and the terminal receives the CG configuration information accordingly. This CG configuration information is used to configure multiple CG transmission opportunities. That is, the configuration information in method 1000 is CG configuration information, and the transmission opportunity is the CG transmission opportunity. The CG configuration information can be carried by an RRC message; through this CG configuration information, the terminal can know the position of the CG transmission opportunity in the time domain.

[0138] Section 1520: The terminal transmits data with the radio access network device at one or more first CG transmission opportunities, wherein these one or more first CG transmission opportunities are a subset of a plurality of CG transmission opportunities. That is, the first transmission opportunity in method 1000 is a first CG transmission opportunity. Specifically, under the CG mechanism, the terminal sends uplink data to the radio access network device at these one or more first CG transmission opportunities, and correspondingly, the radio access network device receives uplink data from the terminal at these one or more first CG transmission opportunities.

[0139] It is understood that, in the absence of the adjustment information in part 1530, the one or more CG transmission opportunities configured in the CG configuration information are all the first CG transmission opportunities. That is, in the absence of the adjustment information in part 1530, the terminal will transmit data with the wireless access network device on one or more CG transmission opportunities pre-configured in the configuration information according to the second activation information.

[0140] As mentioned earlier, the CG mechanism includes CG type 1 and CG type 2.

[0141] In CG type 1, the CG configuration information in part 1510 is used not only to configure multiple CG transmission opportunities, but also to activate the CG configuration, that is, the terminal transmits data with the wireless access network device on one or more first CG transmission opportunities according to the CG configuration information.

[0142] In CG type 2, method 1500 may optionally include a portion 1550: the radio access network device sends second activation information to the terminal, the second activation information being used to activate data transmission on one or more first CG transmission opportunities. Accordingly, the terminal receives the second activation information from the radio access network device, and in portion 1520, the terminal performs data transmission with the radio access network device on one or more first CG transmission opportunities according to the second activation information. The second activation information can be understood as being used to activate CG transmission opportunities pre-configured by CG configuration information. The second activation information may be included in the DCI and carried by the PDCCH.

[0143] Optionally, the second activation information is scrambled by the third RNTI, and the aforementioned adjustment information is scrambled by the fourth RNTI.

[0144] In one possible design, the third RNTI is different from the fourth RNTI. In this case, the terminal can distinguish between the second activation information and the adjustment information through the RNTI. Optionally, the third RNTI is a CS-RNTI, and the fourth RNTI is another RNTI different from the CS-RNTI. For example, the fourth RNTI can be called CS-RNTI-Type2, or it can be any other RNTI different from the CS-RNTI. This application does not limit this.

[0145] In another possible design, the third RNTI is identical to the fourth RNTI, and both the adjustment information and the second activation information include a second field. The second field in the adjustment information is set to a predetermined value. In this case, the terminal can distinguish between the second activation information and the adjustment information through the second field; that is, when the terminal detects that the second field is set to a predetermined value, it can identify the information as the aforementioned adjustment information. Optionally, both the third and fourth RNTIs are CS-RNTIs. Optionally, the second field can be the RV field in the DCI, and the predetermined value can be a reserved value other than 0.

[0146] Part 1530: The wireless access network device sends adjustment information to the terminal, and the terminal receives the adjustment information accordingly. This adjustment information is used to indicate data transmission at one or more second CG transmission times, which are a subset of the aforementioned plurality of CG transmission times, and which are different from the aforementioned one or more first CG transmission times. That is, the second transmission time in method 1500 is a second CG transmission time.

[0147] Section 1540: The radio access network device transmits data with the terminal during one or more second CG transmission opportunities. Accordingly, the terminal transmits data with the radio access network device during one or more second CG transmission opportunities based on adjustment information. Specifically, under the CG mechanism, the terminal sends uplink data to the radio access network device during these one or more second CG transmission opportunities, and correspondingly, the radio access network device receives uplink data from the terminal during these one or more second CG transmission opportunities.

[0148] In method 1500, the wireless access network device can adjust the terminal's data transmission during pre-configured CG transmission times in a timely manner by adjusting information. This allows the pre-configured CG transmission times to better adapt to data requirements regarding transmission latency, etc., and to more efficiently utilize pre-configured CG resources to improve data transmission efficiency, thereby enhancing the user experience. Simultaneously, this method does not affect data transmission during other pre-configured CG transmission times, improving the user's data reception experience while minimizing the impact on other data transmissions.

[0149] by Figure 16 For example, after receiving CG configuration information from the wireless access network device, the terminal can determine the period of the CG transmission opportunity and its temporal distribution within that period, thus identifying the temporal position of the CG transmission opportunity (as indicated by the background in the figure). Based on this CG configuration information, or subsequently, upon receiving second activation information from the wireless access network device, the terminal activates data transmission on the pre-configured CG transmission opportunity. The terminal then... Figure 16 The CG transmission timing illustrated in the diagram received adjustment information within its cycle. This adjustment information was used to adjust the data transmission of the last two CG transmission timings within that cycle. Therefore, in addition to Figure 16 The last two CG transmission opportunities within the illustrated CG transmission opportunity period are the second CG transmission opportunities, while the other CG transmission opportunities are the first CG transmission opportunities. During the first CG transmission opportunity, the terminal sends uplink data to the radio access network device based on CG configuration information or second activation information; during the second CG transmission opportunity, it sends uplink data to the radio access network device based on adjustment information.

[0150] In a possible implementation of CG type 1, the aforementioned CG configuration information may include third MCS information, and the aforementioned adjustment information may include fourth MCS information. The third MCS information configures the MCS of each of the one or more first CG transmission occasions, and the fourth MCS information indicates the MCS of each of the one or more second CG transmission occasions. Optionally, the MCS indicated by the fourth MCS information is lower than the MCS configured by the third MCS information. For example, the modulation order indicated by the fourth MCS information is lower than the modulation order configured by the third MCS information. For another example, the code rate indicated by the fourth MCS information is lower than the code rate configured by the third MCS information. For still another example, the modulation order indicated by the fourth MCS information is lower than the modulation order configured by the third MCS information, and the code rate indicated by the fourth MCS information is lower than the code rate configured by the third MCS information.

[0151] In a possible implementation of CG type 2, the aforementioned second activation information includes fifth MCS information, and the aforementioned adjustment information includes sixth MCS information. The fifth MCS information indicates the MCS of each of the one or more first CG transmission occasions, and the sixth MCS information indicates the MCS of each of the one or more second CG transmission occasions. Optionally, the MCS indicated by the sixth MCS information is lower than the MCS configured by the fifth MCS information. For example, the modulation order indicated by the sixth MCS information is lower than the modulation order indicated by the fifth MCS information. For another example, the code rate indicated by the sixth MCS information is lower than the code rate indicated by the fifth MCS information. For still another example, the modulation order indicated by the sixth MCS information is lower than the modulation order indicated by the fifth MCS information, and the code rate indicated by the sixth MCS information is lower than the code rate indicated by the fifth MCS information.

[0152] The implementation of the foregoing CG type 1 or CG type 2 can be understood as: when the latest reception time Tlatest2 of a picture frame, the time Tsecond2 of the second CG transmission occasion, and the retransmission time Tretrans2 corresponding to the second CG transmission occasion satisfy Tlatest2–Tsecond2<Tretrans2, the MCS indicated by the fourth MCS information included in the adjustment information sent by the radio access network device to the terminal is lower than the MCS configured by the third MCS information in the CG configuration information, or the MCS indicated by the sixth MCS information included in the adjustment information sent by the radio access network device to the terminal is lower than the MCS indicated by the fifth MCS information in the second activation information. Optionally, the retransmission time Tretrans2 corresponding to the second CG transmission occasion is related to the slot configuration of the terminal and the terminal capability. For the description that the retransmission time corresponding to the CG transmission occasion is related to the slot configuration of the terminal and the terminal capability, reference may be made to the previous description for Figure 9 , which will not be repeated here.

[0153] In the above-mentioned embodiment of CG type 1 or CG type 2, the data transmitted at the first CG transmission occasion and the data transmitted at the second CG transmission occasion may belong to the same picture frame. When the second CG transmission occasion contains sufficient resources, and the latest reception time Tlatest2 of the picture frame, the time Tsecond2 of the second CG transmission occasion, and the retransmission time Tretrans2 corresponding to the second CG transmission occasion satisfy Tlatest2–Tsecond2<Tretrans2, the above adjustment information is used to indicate to the terminal that a lower MCS is adopted at the second CG transmission occasion, so as to improve the reliability of data transmission at the second CG transmission occasion, reduce the retransmission probability of data transmitted at the second CG transmission occasion, thereby minimizing the delay of data transmission and improving the user's data reception experience.

[0154] Still taking Figure 16 as an example, there are 6 CG transmission occasions in total within the period of the CG transmission occasion illustrated in the figure, taking an example that each first CG transmission occasion configured by the CG configuration information can transmit 10000 bits of data, and the transmitted picture frame has a total of 50000 bits of data. Figure 16 also illustrates the latest reception time Tlatest2 of the picture frame, the time Tsecond2 of the second CG transmission occasion, and the retransmission time Tretrans2 corresponding to the second CG transmission occasion. The radio access network device transmits a total of 40000 bits of data on the first four first CG transmission occasions within the period of the CG transmission occasion. Taking Figure 9 the illustrated scenario as an example, for the last two CG transmission occasions within the period of the CG transmission occasion, due to the influence of the delay constraint required by the picture frame, Tlatest2–Tsecond2<Tretrans2 is satisfied, and the resources of these two CG transmission occasions are sufficient to carry the remaining 10000 bits of the picture frame. Therefore, the radio access network device may send adjustment information to the terminal, indicating that the MCS for data transmission on these two second CG transmission occasions will be temporarily reduced. For example, after reducing the MCS, each second CG transmission occasion can carry 5000 bits of data, so as to improve the reliability of data transmission on these two second CG transmission occasions, reduce the retransmission probability of data transmitted on these two second CG transmission occasions, and avoid as much as possible the reception failure of the entire picture frame caused by the situation that retransmission is required but cannot be completed within the specified time.

[0155] In a possible implementation of CG type 1, in addition to the aforementioned third MCS information, the CG configuration information further includes third FDRA information; in addition to the aforementioned fourth MCS information, the adjustment information further includes fourth FDRA information. The third FDRA information configures the frequency domain resource of each of the one or more first CG transmission occasions, and the fourth FDRA information indicates the frequency domain resource of each of the one or more second CG transmission occasions. Optionally, the frequency domain resources indicated by the fourth FDRA information are more than the frequency domain resources configured by the third FDRA information.

[0156] In a possible implementation of CG type 2, in addition to the aforementioned fifth MCS information, the second activation information further includes fifth FDRA information; in addition to the aforementioned sixth MCS information, the adjustment information further includes sixth FDRA information. The fifth FDRA information indicates the frequency domain resource of each of the one or more first CG transmission occasions, and the sixth FDRA information indicates the frequency domain resource of each of the one or more second CG transmission occasions. Optionally, the frequency domain resources indicated by the sixth FDRA information are more than the frequency domain resources configured by the fifth FDRA information.

[0157] The foregoing implementations of CG type 1 or CG type 2 can be understood as: when the latest reception time Tlatest2 of a picture frame, the time Tsecond2 of the second CG transmission occasion, and the retransmission time Tretrans2 corresponding to the second CG transmission occasion satisfy Tlatest2–Tsecond2<Tretrans2, the MCS indicated by the fourth MCS information included in the adjustment information sent by the radio access network device to the terminal is lower than the MCS configured by the third MCS information in the CG configuration information, and the frequency domain resources indicated by the fourth FDRA information included in the adjustment information are more than the frequency domain resources configured by the third FDRA information in the CG configuration information; or the MCS indicated by the sixth MCS information included in the adjustment information sent by the radio access network device to the terminal is lower than the MCS indicated by the fifth MCS information in the second activation information, and the frequency domain resources indicated by the sixth FDRA information included in the adjustment information are more than the frequency domain resources indicated by the fifth FDRA information in the second activation information. Optionally, the retransmission time Tretrans2 corresponding to the second CG transmission occasion is related to the slot configuration of the terminal and the terminal capability. For the description that the retransmission time corresponding to the CG transmission occasion is related to the slot configuration of the terminal and the terminal capability, reference may be made to the preceding description for Figure 9 , which is not repeated herein.

[0158] In the above-mentioned embodiment of CG type 1 or CG type 2, the data transmitted at the first CG transmission occasion and the data transmitted at the second CG transmission occasion may belong to the same picture frame. When the resources included in the second CG transmission occasion are insufficient, and the latest reception time Tlatest2 of the picture frame, the time Tsecond2 of the second CG transmission occasion, and the retransmission time Tretrans2 corresponding to the second CG transmission occasion satisfy Tlatest2–Tsecond2<Tretrans2, more resources are allocated for the second CG transmission occasion, so as to improve the reliability of data transmission on the second CG transmission occasion, reduce the retransmission probability of data transmitted on the second CG transmission occasion, thereby reducing the data transmission delay as much as possible and improving the user's data reception experience.

[0159] Take Figure 17A as an example, there are 5 CG transmission occasions in total within the period of the CG transmission occasion illustrated in the figure, taking an example that each first CG transmission occasion configured by the CG configuration information can transmit 10000 bits of data, and the transmitted picture frame has a total of 50000 bits of data. Figure 17A also illustrates the latest reception time Tlatest2 of the picture frame, the time Tsecond2 of the second CG transmission occasion, and the retransmission time Tretrans2 corresponding to the second CG transmission occasion. The radio access network device transmits a total of 40000 bits of data on the first four first CG transmission occasions within the period of the CG transmission occasion. For the last CG transmission occasion within the period of the CG transmission occasion, similar to Figure 9 taking the described reason as an example, due to the influence of the delay constraint required by the picture frame, Tlatest2–Tsecond2<Tretrans2 is satisfied. At this time, if the MCS on this second CG transmission occasion is reduced through the adjustment information, the number of bits that can be carried on the second CG transmission occasion will decrease, and the remaining 10000 bits cannot be fully carried. Therefore, at this time, in addition to the aforementioned fourth MCS information / sixth MCS information for reducing the MCS on the second CG transmission occasion, the adjustment information further includes fourth FDRA information / sixth FDRA information, which is used to temporarily increase the frequency domain resources on the second CG transmission occasion, so that the second CG transmission occasion can still fully carry the remaining 10000 bits while the MCS is reduced. At the same time, due to the reduction of the MCS, the reliability of data transmission on this second CG transmission occasion can be improved, the retransmission probability of data transmitted on this second CG transmission occasion can be reduced, so as to avoid as much as possible the reception failure of the entire picture frame caused by the situation that retransmission is required but cannot be completed within the specified time.

[0160] In a possible implementation of CG type 1, in addition to sending the above CG configuration information including the third MCS information and the adjustment information including the fourth MCS information to the terminal, the method 1500 further includes: the radio access network device sends second scheduling information to the terminal, where the second scheduling information is used to schedule data transmission on time domain resources other than the plurality of CG transmission occasions described above; and performs data transmission with the terminal on the time domain resources other than the plurality of CG transmission occasions described above. Correspondingly, the terminal receives the second scheduling information, and performs data transmission with the radio access network device on the time domain resources other than the plurality of CG transmission occasions described above according to the second scheduling information. In this application, data transmission on time domain resources outside the CG transmission occasion may also be referred to as non-CG data transmission.

[0161] In a possible implementation of CG type 2, in addition to sending the above second activation information including the fifth MCS information and the adjustment information including the sixth MCS information to the terminal, the method 1500 further includes: the radio access network device sends third scheduling information to the terminal, where the third scheduling information is used to schedule data transmission on time domain resources other than the plurality of CG transmission occasions described above; and performs data transmission with the terminal on the time domain resources other than the plurality of CG transmission occasions described above. Correspondingly, the terminal receives the third scheduling information, and performs data transmission with the radio access network device on the time domain resources other than the plurality of CG transmission occasions described above according to the third scheduling information.

[0162] In the foregoing implementations of CG type 1 or CG type 2, the data transmitted on the first CG transmission occasion and the data transmitted on the second CG transmission occasion may belong to the same picture frame. When the resources included in the second CG transmission occasion are insufficient, and the latest reception time Tlatest2 of the picture frame, the time Tsecond2 of the second CG transmission occasion, and the retransmission time Tretrans2 corresponding to the second CG transmission occasion satisfy Tlatest2–Tsecond2<Tretrans2, resources outside the CG transmission occasion are additionally scheduled for transmission of the picture frame data, so as to reduce the data transmission delay as much as possible and improve the user's data reception experience.

[0163] Take Figure 17B as an example, there are 5 SPS transmission occasions in the period of the CG transmission occasion illustrated in the figure, taking an example that each first CG transmission occasion configured by the CG configuration information can transmit 10000 bits of data, and the transmitted picture frame has a total of 50000 bits of data. Figure 17BAlso illustrated therein are the latest reception time Tlatest2 of the picture frame, the time Tsecond2 of the second CG transmission occasion, and the retransmission time Tretrans2 corresponding to the second CG transmission occasion. The radio access network device transmits a total of 40000 bits of data on the first four first CG transmission occasions within the period of the CG transmission occasion. For the last CG transmission occasion within the period of the CG transmission occasion, similar to Figure 9 Taking the described reason as an example, due to the influence of the delay constraint required by the picture frame, Tlatest2–Tsecond2<Tretrans2. At this time, if the MCS on this second CG transmission occasion is reduced through the adjustment information, the number of bits that can be carried on this second CG transmission occasion will decrease, for example, to 5000 bits. Therefore, at this time, in addition to sending the adjustment information containing the second MCS information to the terminal, the radio access network device also sends second scheduling information / third scheduling information to the terminal, for scheduling time domain resources other than the CG transmission occasion (as indicated by the horizontal stripes in the figure), so that the remaining 5000 bits can be fully carried on this additionally scheduled time domain resource. Due to the reduction of the MCS on the second CG transmission occasion, the reliability of data transmission on this second CG transmission occasion can be improved, and the retransmission probability of data transmitted on this second CG transmission occasion can be reduced, so as to avoid as much as possible the reception failure of the entire picture frame caused by the need for retransmission but the failure to complete the retransmission within the specified time.

[0164] In method 1500, optionally, the method further includes: the radio access network device sends CG deactivation information to the terminal, where the CG deactivation information is used to deactivate the configuration of CG. The terminal receives the CG deactivation information, and stops / suspends uplink data transmission on the CG transmission occasion based on the CG deactivation information. The CG deactivation information may be included in DCI and carried by PDCCH.

[0165] Corresponding to the methods provided in the foregoing method embodiments, the embodiments of the present application further provide a corresponding apparatus, including modules configured to perform the corresponding operations of the foregoing embodiments. The modules may be software, or hardware, or a combination of software and hardware.

[0166] Figure 18 A schematic structural diagram of a terminal is provided. The terminal is applicable to Figure 1 , Figure 2 , Figure 3 , Figure 4 or Figure 5 in the scenarios illustrated. The terminal or a component in the terminal may perform the foregoing method 1000, method 1200, method 1500 and various possible embodiments. For ease of description, Figure 18 only the main components of the terminal are shown. As shown in Figure 18As shown, terminal 1800 includes a processor, memory, control circuitry, antenna, and input / output devices. The processor is primarily used for processing communication protocols and data, controlling the entire terminal, executing software programs, and processing software program data. The memory is primarily used for storing software programs and data. The radio frequency (RF) circuitry is primarily used for converting baseband signals to RF signals and processing RF signals. The antenna is primarily used for transmitting and receiving RF signals in the form of electromagnetic waves. Input / output devices, such as touchscreens, displays, and keyboards, are primarily used for receiving user input data and outputting data to the user.

[0167] When the terminal is powered on, the processor can read the software program from the storage unit, parse and execute the instructions of the software program, and process the data of the software program. When data needs to be transmitted wirelessly, the processor performs baseband processing on the data to be transmitted and outputs the baseband signal to the radio frequency (RF) circuit. The RF circuit processes the baseband signal to obtain the RF signal and transmits the RF signal outward in the form of electromagnetic waves through the antenna. When data is sent to the terminal, the RF circuit receives the RF signal through the antenna. This RF signal is further converted into a baseband signal and output to the processor. The processor converts the baseband signal back into data and processes the data.

[0168] For ease of explanation, Figure 18 Only one memory and processor are shown. In a real terminal, multiple processors and memories may exist. Memory can also be called storage medium or storage device, etc., and this application embodiment does not limit this.

[0169] As an optional implementation, the processor may include a baseband processor and a central processing unit (CPU). The baseband processor is mainly used to process communication protocols and communication data, while the CPU is mainly used to control the entire terminal device, execute software programs, and process the data of the software programs. Figure 18 The processor in the terminal integrates the functions of a baseband processor and a central processing unit (CPU). Those skilled in the art will understand that the baseband processor and CPU can also be independent processors interconnected via technologies such as buses. It will also be understood that a terminal can include multiple baseband processors to adapt to different network standards, and multiple CPUs to enhance its processing capabilities. The various components of the terminal can be connected via various buses. The baseband processor can also be described as a baseband processing circuit or a baseband processing chip. Similarly, the CPU can be described as a central processing circuit or a central processing chip. The function of processing communication protocols and communication data can be built into the processor or stored as a software program in a storage unit, with the processor executing the software program to implement the baseband processing function.

[0170] In one example, the antenna and control circuitry with transceiver functions can be considered as the transceiver unit 1811 of terminal 1800, and the processor with processing functions can be considered as the processing unit 1812 of terminal 1800. For example... Figure 18 As shown, terminal 1800 includes a transceiver unit 1811 and a processing unit 1812. The transceiver unit can also be referred to as a transceiver, transceiver device, or transceiver apparatus. Optionally, the device in transceiver unit 1811 used for receiving functions can be considered a receiving unit, and the device in transceiver unit 1811 used for transmitting functions can be considered a transmitting unit; that is, transceiver unit 1811 includes both a receiving unit and a transmitting unit. For example, the receiving unit can also be referred to as a receiver, receiver circuit, or receiving device, and the transmitting unit can be referred to as a transmitter, transmitter, or transmitting circuit. Optionally, the receiving unit and transmitting unit can be integrated into a single unit or can be multiple independent units. The receiving unit and transmitting unit can be located in one geographical location or distributed across multiple geographical locations.

[0171] like Figure 19 As shown, another embodiment of this application provides an apparatus 1900. This apparatus can be a terminal, or a component of a terminal (e.g., an integrated circuit, a chip, etc.). Alternatively, the apparatus can be a wireless access network device, or a component of a network device (e.g., an integrated circuit, a chip, etc.), or a logic module or software capable of implementing all or part of the functions of a wireless access network device. The apparatus can also be other communication modules. For example, the apparatus 1900 can implement the functions of the wireless access network device in methods 1000, 1200, and 1500, or the apparatus 1900 can implement the functions of the terminal in methods 1000, 1200, and 1500. The apparatus 1900 may include an interface module 1901 (or interface unit) and a processing module 1902 (or processing unit), and may also include a storage module 1903 (or storage unit).

[0172] In one possible design, such as Figure 19 One or more modules may be implemented by one or more processors, or by one or more processors and memory; or by one or more processors and transceivers; or by one or more processors, memory, and transceivers. This application does not limit the implementation in this way. The processors, memory, and transceivers can be configured individually or integrated.

[0173] The device is capable of implementing the functions of the terminal described in the embodiments of this application. For example, the device includes modules, units, or means corresponding to the steps involved in the terminal described in the embodiments of this application. These functions, units, or means can be implemented by software, hardware, or hardware executing corresponding software, or a combination of software and hardware. Further details can be found in the corresponding descriptions in the foregoing method embodiments. Alternatively, the device is capable of implementing the functions of the wireless access network device described in the embodiments of this application. For example, the device includes modules, units, or means corresponding to the steps involved in the wireless access network device described in the embodiments of this application. These functions, units, or means can be implemented by software, hardware, or hardware executing corresponding software, or a combination of software and hardware. Further details can be found in the corresponding descriptions in the foregoing method embodiments.

[0174] In one possible design, device 1900 includes a processing module 1902 and an interface module 1901. Device 1900 can be, for example, a terminal, a component of a terminal (e.g., a processor, chip, or chip system), or a logic module or software capable of implementing all or part of the terminal's functions. Interface module 1901 is used to receive configuration information from a network device, which configures multiple transmission opportunities. Processing module 1902 is used to control device 1900 to transmit data with the network device on one or more first transmission opportunities, where the one or more first transmission opportunities are a subset of the multiple transmission opportunities. Interface module 1901 is also used to receive adjustment information from the network device. Processing module 1902 is further used to control device 1900 to transmit data with the network device on one or more second transmission opportunities based on the adjustment information, where the one or more second transmission opportunities are a subset of the multiple transmission opportunities, and the one or more second transmission opportunities differ from the one or more first transmission opportunities.

[0175] In some possible embodiments of device 1900, the aforementioned configuration information is SPS configuration information, the aforementioned transmission timing is an SPS transmission timing, the aforementioned first transmission timing is a first SPS transmission timing, and the aforementioned second transmission timing is a second SPS transmission timing. Interface module 1901 is further configured to receive first activation information from a network device. Processing module 1902 is configured to control device 1900 to perform data transmission with the network device at one or more first transmission timings, including: processing module 1902 is configured to control device 1900 to perform data transmission with the network device at one or more first transmission timings based on the first activation information.

[0176] In some possible implementations of the apparatus 1900, the aforementioned first activation information includes first MCS information, and the aforementioned adjustment information includes second MCS information. The first MCS information indicates the MCS of each first SPS transmission occasion among one or more first SPS transmission occasions, and the second MCS information indicates the MCS of each second SPS transmission occasion among one or more second SPS transmission occasions. Optionally, the MCS indicated by the second MCS information is lower than the MCS indicated by the first MCS information. This implementation can be understood as: when the latest reception time Tlatest1 of a picture frame, the time Tsecond1 of the second SPS transmission occasion, and the retransmission time Tretrans1 corresponding to the second SPS transmission occasion satisfy Tlatest1–Tsecond1<Tretrans1, the MCS indicated by the second MCS information contained in the adjustment information sent by the radio access network device to the terminal is lower than the MCS indicated by the first MCS information in the first activation information. Optionally, the retransmission time Tretrans1 corresponding to the second SPS transmission occasion is related to the slot configuration of the terminal and the terminal capability. In this implementation, the data transmitted on the first SPS transmission occasion and the data transmitted on the second SPS transmission occasion may belong to the same picture frame, the second SPS transmission occasion contains sufficient resources, and the latest reception time Tlatest1 of the picture frame, the time Tsecond1 of the second SPS transmission occasion, and the retransmission time Tretrans1 corresponding to the second SPS transmission occasion satisfy Tlatest1–Tsecond1<Tretrans1.

[0177] In some possible implementations of apparatus 1900, in addition to the aforementioned first MCS information, the first activation information further includes first FDRA information; in addition to the aforementioned second MCS information, the adjustment information further includes second FDRA information. The first FDRA information indicates the frequency domain resource of each of the one or more first SPS transmission occasions, and the second FDRA information indicates the frequency domain resource of each of the one or more second SPS transmission occasions. Optionally, the frequency domain resources indicated by the second FDRA information are more than the frequency domain resources indicated by the first FDRA information. This implementation can be understood as: when the latest reception time Tlatest1 of the picture frame, the time Tsecond1 of the second SPS transmission occasion, and the retransmission time Tretrans1 corresponding to the second SPS transmission occasion satisfy Tlatest1–Tsecond1<Tretrans1, the MCS indicated by the second MCS information included in the adjustment information sent by the radio access network device to the terminal is lower than the MCS indicated by the first MCS information in the first activation information, and the frequency domain resources indicated by the second FDRA information included in the adjustment information are more than the frequency domain resources indicated by the first FDRA information in the first activation information. Optionally, the retransmission time Tretrans1 corresponding to the second SPS transmission occasion is related to the slot configuration of the terminal and the terminal capability. In this implementation, the data transmitted on the first SPS transmission occasion and the data transmitted on the second SPS transmission occasion may belong to the same picture frame, the resources included in the second SPS transmission occasion are insufficient, and the latest reception time Tlatest1 of the picture frame, the time Tsecond1 of the second SPS transmission occasion, and the retransmission time Tretrans1 corresponding to the second SPS transmission occasion satisfy Tlatest1–Tsecond1<Tretrans1.

[0178] In some possible implementations of apparatus 1900, in addition to being configured to receive the aforementioned first activation information including the first MCS information and the adjustment information including the second MCS information, the interface module 1901 is further configured to receive first scheduling information from the network device. The processing module 1902 is further configured to control, according to the first scheduling information, the apparatus 1900 to perform data transmission with the network device on time domain resources other than the aforementioned multiple SPS transmission occasions. In this implementation, the data transmitted on the first SPS transmission occasion and the data transmitted on the second SPS transmission occasion may belong to the same picture frame, the resources included in the aforementioned second SPS transmission occasion are insufficient, and the latest reception time Tlatest1 of the picture frame, the time Tsecond1 of the second SPS transmission occasion, and the retransmission time Tretrans1 corresponding to the second SPS transmission occasion satisfy Tlatest1–Tsecond1<Tretrans1.

[0179] In some possible implementations of the apparatus 1900, the aforementioned first activation information is scrambled by a first RNTI, and the aforementioned adjustment information is scrambled by a second RNTI. The first RNTI is different from the second RNTI; or, the first RNTI is the same as the second RNTI, both the adjustment information and the first activation information include a first field, and the first field in the adjustment information is set to a predetermined value.

[0180] In some possible implementations of the apparatus 1900, the aforementioned configuration information is CG configuration information, the aforementioned transmission occasion is a CG transmission occasion, the aforementioned first transmission occasion is a first CG transmission occasion, and the aforementioned second transmission occasion is a second CG transmission occasion. Optionally, that the processing module 1902 is configured to control the apparatus 1900 to perform data transmission with a network device on one or more first transmission occasions includes: the processing module 1902 is configured to control, according to the aforementioned CG configuration information, the apparatus 1900 to perform data transmission with the network device on one or more first CG transmission occasions.

[0181] In some possible implementations of the apparatus 1900, the aforementioned CG configuration information may include third MCS information, and the aforementioned adjustment information may include fourth MCS information. The third MCS information configures the MCS of each first CG transmission occasion among the one or more first CG transmission occasions, and the fourth MCS information indicates the MCS of each second CG transmission occasion among the one or more second CG transmission occasions. Optionally, the MCS indicated by the fourth MCS information is lower than the MCS configured by the third MCS information. This implementation can be understood as: when the latest reception time Tlatest2 of a picture frame, the time Tsecond2 of the second CG transmission occasion, and the retransmission time Tretrans2 corresponding to the second CG transmission occasion satisfy Tlatest2–Tsecond2<Tretrans2, the MCS indicated by the fourth MCS information included in the adjustment information sent by the radio access network device to the terminal is lower than the MCS configured by the third MCS information in the CG configuration information. Optionally, the retransmission time Tretrans2 corresponding to the second CG transmission occasion is related to the slot configuration of the terminal and the terminal capability. In this implementation, the data transmitted on the first CG transmission occasion and the data transmitted on the second CG transmission occasion may belong to the same picture frame, the second CG transmission occasion contains sufficient resources, and the latest reception time Tlatest2 of the picture frame, the time Tsecond2 of the second CG transmission occasion, and the retransmission time Tretrans2 corresponding to the second CG transmission occasion satisfy Tlatest2–Tsecond2<Tretrans2.

[0182] In some possible implementations of the apparatus 1900, in addition to the aforementioned third MCS information, the CG configuration information further includes third FDRA information; in addition to the aforementioned fourth MCS information, the adjustment information further includes fourth FDRA information. The third FDRA information configures frequency domain resources for each of the one or more first CG transmission occasions, and the fourth FDRA information indicates frequency domain resources for each of the one or more second CG transmission occasions. Optionally, the frequency domain resources indicated by the fourth FDRA information are more than the frequency domain resources configured by the third FDRA information. This implementation can be understood as: when the latest reception time Tlatest2 of the picture frame, the time Tsecond2 of the second CG transmission occasion, and the retransmission time Tretrans2 corresponding to the second CG transmission occasion satisfy Tlatest2–Tsecond2<Tretrans2, the MCS indicated by the fourth MCS information included in the adjustment information sent by the radio access network device to the terminal is lower than the MCS configured by the third MCS information in the CG configuration information, and the frequency domain resources indicated by the fourth FDRA information included in the adjustment information are more than the frequency domain resources configured by the third FDRA information in the CG configuration information. Optionally, the retransmission time Tretrans2 corresponding to the second CG transmission occasion is related to the slot configuration of the terminal and the terminal capability. In this implementation, the data transmitted on the first CG transmission occasion and the data transmitted on the second CG transmission occasion may belong to the same picture frame, the resources included in the second CG transmission occasion are insufficient, and the latest reception time Tlatest2 of the picture frame, the time Tsecond2 of the second CG transmission occasion, and the retransmission time Tretrans2 corresponding to the second CG transmission occasion satisfy Tlatest2–Tsecond2<Tretrans2.

[0183] In some possible implementations of the apparatus 1900, in addition to being configured to receive the aforementioned CG configuration information including the third MCS information and the adjustment information including the fourth MCS information, the interface module 1901 is further configured to receive second scheduling information from the network device. The processing module 1902 is further configured to control, according to the second scheduling information, the apparatus 1900 to perform data transmission with the network device on time domain resources other than the aforementioned multiple CG transmission occasions. In this implementation, the data transmitted on the first CG transmission occasion and the data transmitted on the second CG transmission occasion may belong to the same picture frame, the resources included in the aforementioned second CG transmission occasion are insufficient, and the latest reception time Tlatest2 of the picture frame, the time Tsecond2 of the second CG transmission occasion, and the retransmission time Tretrans2 corresponding to the second CG transmission occasion satisfy Tlatest2–Tsecond2<Tretrans2.

[0184] In some possible implementations of the apparatus 1900, the interface module 1901 is further configured to receive second activation information from a network device. The processing module 1902 is configured to control the apparatus 1900 to perform data transmission with the network device on one or more first transmission occasions, including: the processing module 1902 is configured to control, according to the second activation information, the apparatus 1900 to perform data transmission with the network device on one or more first CG transmission occasions. Optionally, the foregoing second activation information includes fifth MCS information, and the foregoing adjustment information includes sixth MCS information. The fifth MCS information indicates an MCS for each of the one or more first CG transmission occasions, and the sixth MCS information indicates an MCS for each of the one or more second CG transmission occasions. Optionally, the MCS indicated by the sixth MCS information is lower than the MCS configured by the fifth MCS information. This implementation may be understood as: when the latest reception time Tlatest2 of a picture frame, the time Tsecond2 of a second CG transmission occasion, and the retransmission time Tretrans2 corresponding to the second CG transmission occasion satisfy Tlatest2–Tsecond2<Tretrans2, the MCS indicated by the sixth MCS information included in the adjustment information sent by a radio access network device to a terminal is lower than the MCS indicated by the fifth MCS information in the second activation information. Optionally, the retransmission time Tretrans2 corresponding to the second CG transmission occasion is related to a slot configuration of the terminal and a capability of the terminal. In this implementation, data transmitted on the first CG transmission occasion and data transmitted on the second CG transmission occasion may belong to a same picture frame, the second CG transmission occasion includes sufficient resources, and the latest reception time Tlatest2 of the picture frame, the time Tsecond2 of the second CG transmission occasion, and the retransmission time Tretrans2 corresponding to the second CG transmission occasion satisfy Tlatest2–Tsecond2<Tretrans2.

[0185] In some possible implementations of the apparatus 1900, in addition to the aforementioned fifth MCS information, the second activation information further includes fifth FDRA information; in addition to the aforementioned sixth MCS information, the adjustment information further includes sixth FDRA information. The fifth FDRA information indicates the frequency domain resource of each first CG transmission occasion among one or more first CG transmission occasions, and the sixth FDRA information indicates the frequency domain resource of each second CG transmission occasion among one or more second CG transmission occasions. Optionally, the frequency domain resources indicated by the sixth FDRA information are more than the frequency domain resources configured by the fifth FDRA information. This implementation can be understood as: when the latest reception time Tlatest2 of a picture frame, the time Tsecond2 of the second CG transmission occasion, and the retransmission time Tretrans2 corresponding to the second CG transmission occasion satisfy Tlatest2–Tsecond2<Tretrans2, the MCS indicated by the sixth MCS information included in the adjustment information sent by the radio access network device to the terminal is lower than the MCS indicated by the fifth MCS information in the second activation information, and the frequency domain resources indicated by the sixth FDRA information included in the adjustment information are more than the frequency domain resources indicated by the fifth FDRA information in the second activation information. Optionally, the retransmission time Tretrans2 corresponding to the second CG transmission occasion is related to the slot configuration of the terminal and the terminal capability. In this implementation, the data transmitted on the first CG transmission occasion and the data transmitted on the second CG transmission occasion may belong to the same picture frame, the resources included in the second CG transmission occasion are insufficient, and the latest reception time Tlatest2 of the picture frame, the time Tsecond2 of the second CG transmission occasion, and the retransmission time Tretrans2 corresponding to the second CG transmission occasion satisfy Tlatest2–Tsecond2<Tretrans2.

[0186] In some possible implementations of the apparatus 1900, in addition to being configured to receive the aforementioned second activation information including the fifth MCS information and the adjustment information including the sixth MCS information, the interface module 1901 is further configured to receive third scheduling information from the network device. The processing module 1902 is further configured to control, according to the third scheduling information, the apparatus 1900 to perform data transmission with the network device on time domain resources other than the aforementioned plurality of CG transmission occasions. In this implementation, the data transmitted on the first CG transmission occasion and the data transmitted on the second CG transmission occasion may belong to the same picture frame, the resources included in the aforementioned second CG transmission occasion are insufficient, and the latest reception time Tlatest2 of the picture frame, the time Tsecond2 of the second CG transmission occasion, and the retransmission time Tretrans2 corresponding to the second CG transmission occasion satisfy Tlatest2–Tsecond2<Tretrans2.

[0187] In some possible embodiments of device 1900, the aforementioned second activation information is scrambled by a third RNTI, and the aforementioned adjustment information is scrambled by a fourth RNTI. The third RNTI is different from the fourth RNTI; or, the third RNTI is the same as the fourth RNTI, and both the adjustment information and the second activation information include a second field, wherein the second field in the adjustment information is set to a predetermined value.

[0188] In another possible design, device 1900 includes a processing module 1902 and an interface module 1901. Device 1900 can be, for example, a wireless access network (WLAN) device, a component of a WLAN device (e.g., a processor, chip, or chip system), or a logic module or software capable of implementing all or part of the WLAN device's functions. Interface module 1901 is used to send configuration information to the terminal, which configures multiple transmission opportunities. Processing module 1902 is used to control device 1900 to perform data transmission with the terminal on one or more first transmission opportunities, which are a subset of the multiple transmission opportunities. Interface module 1901 is also used to send adjustment information to the terminal, which indicates data transmission on one or more second transmission opportunities, which are a subset of the multiple transmission opportunities and are different from the one or more first transmission opportunities. Processing module 1902 is also used to control device 1900 to perform data transmission with the terminal on the one or more second transmission opportunities.

[0189] In some possible embodiments of device 1900, the aforementioned configuration information is SPS configuration information, the aforementioned transmission timing is an SPS transmission timing, the aforementioned first transmission timing is a first SPS transmission timing, and the aforementioned second transmission timing is a second SPS transmission timing. Interface module 1901 is further configured to send first activation information to the terminal, the first activation information being used to activate data transmission on one or more of the aforementioned first SPS transmission timings.

[0190] In some possible implementations of the apparatus 1900, the aforesaid first activation information includes first MCS information, and the aforesaid adjustment information includes second MCS information. The first MCS information indicates the MCS of each first SPS transmission occasion among the one or more first SPS transmission occasions, and the second MCS information indicates the MCS of each second SPS transmission occasion among the one or more second SPS transmission occasions. Optionally, the MCS indicated by the second MCS information is lower than the MCS indicated by the first MCS information. This implementation can be understood as: when the latest reception time Tlatest1 of a picture frame, the time Tsecond1 of the second SPS transmission occasion, and the retransmission time Tretrans1 corresponding to the second SPS transmission occasion satisfy Tlatest1–Tsecond1<Tretrans1, the MCS indicated by the second MCS information contained in the adjustment information sent by the radio access network device to the terminal is lower than the MCS indicated by the first MCS information in the first activation information. Optionally, the retransmission time Tretrans1 corresponding to the second SPS transmission occasion is related to the slot configuration of the terminal and the terminal capability. In this implementation, the data transmitted on the first SPS transmission occasion and the data transmitted on the second SPS transmission occasion may belong to the same picture frame, the second SPS transmission occasion contains sufficient resources, and the latest reception time Tlatest1 of the picture frame, the time Tsecond1 of the second SPS transmission occasion, and the retransmission time Tretrans1 corresponding to the second SPS transmission occasion satisfy Tlatest1–Tsecond1<Tretrans1.

[0191] In some possible implementations of the apparatus 1900, in addition to the foregoing first MCS information, the first activation information further includes first FDRA information; in addition to the foregoing second MCS information, the adjustment information further includes second FDRA information. The first FDRA information indicates a frequency domain resource of each of the one or more first SPS transmission occasions, and the second FDRA information indicates a frequency domain resource of each of the one or more second SPS transmission occasions. Optionally, the frequency domain resources indicated by the second FDRA information are more than the frequency domain resources indicated by the first FDRA information. This implementation may be understood as: when the latest reception time Tlatest1 of a picture frame, the time Tsecond1 of the second SPS transmission occasion, and the retransmission time Tretrans1 corresponding to the second SPS transmission occasion satisfy Tlatest1–Tsecond1<Tretrans1, the MCS indicated by the second MCS information included in the adjustment information sent by the radio access network device to the terminal is lower than the MCS indicated by the first MCS information in the first activation information, and the frequency domain resources indicated by the second FDRA information included in the adjustment information are more than the frequency domain resources indicated by the first FDRA information in the first activation information. Optionally, the retransmission time Tretrans1 corresponding to the second SPS transmission occasion is related to the slot configuration of the terminal and the terminal capability. In this implementation, the data transmitted on the first SPS transmission occasion and the data transmitted on the second SPS transmission occasion may belong to the same picture frame, the resources included in the second SPS transmission occasion are insufficient, and the latest reception time Tlatest1 of the picture frame, the time Tsecond1 of the second SPS transmission occasion, and the retransmission time Tretrans1 corresponding to the second SPS transmission occasion satisfy Tlatest1–Tsecond1<Tretrans1.

[0192] In some possible implementations of the apparatus 1900, in addition to being configured to send the foregoing first activation information including the first MCS information and the adjustment information including the second MCS information to the terminal, the interface module 1901 is further configured to send first scheduling information to the terminal, where the first scheduling information is configured to schedule data transmission on time domain resources other than the foregoing multiple SPS transmission occasions. The processing module 1902 is further configured to control the apparatus 1900 to perform data transmission with the terminal on the time domain resources other than the foregoing multiple SPS transmission occasions. In this implementation, the data transmitted on the first SPS transmission occasion and the data transmitted on the second SPS transmission occasion may belong to the same picture frame, the resources included in the foregoing second SPS transmission occasion are insufficient, and the latest reception time Tlatest1 of the picture frame, the time Tsecond1 of the second SPS transmission occasion, and the retransmission time Tretrans1 corresponding to the second SPS transmission occasion satisfy Tlatest1–Tsecond1<Tretrans1.

[0193] In some possible implementations of the apparatus 1900, the aforementioned first activation information is scrambled by a first Radio Network Temporary Identifier (RNTI), and the aforementioned adjustment information is scrambled by a second RNTI. The first RNTI is different from the second RNTI; or, the first RNTI is the same as the second RNTI, both the adjustment information and the first activation information include a first field, and the first field in the adjustment information is set to a predetermined value.

[0194] In some possible implementations of the apparatus 1900, the aforementioned configuration information is CG configuration information, the aforementioned transmission occasion is a CG transmission occasion, the aforementioned first transmission occasion is a first CG transmission occasion, and the aforementioned second transmission occasion is a second CG transmission occasion. Optionally, the processing module 1902 is configured to control the apparatus 1900 to perform data transmission with the terminal on one or more first transmission occasions, which includes: the processing module 1902 is configured to control, according to the above CG configuration information, the apparatus 1900 to perform data transmission with the terminal on one or more first CG transmission occasions.

[0195] In some possible implementations of the apparatus 1900, the above CG configuration information may include third MCS information, and the above adjustment information may include fourth MCS information. The third MCS information configures the MCS of each first CG transmission occasion among the one or more first CG transmission occasions, and the fourth MCS information indicates the MCS of each second CG transmission occasion among the one or more second CG transmission occasions. Optionally, the MCS indicated by the fourth MCS information is lower than the MCS configured by the third MCS information. This implementation can be understood as: when the latest reception time Tlatest2 of the picture frame, the time Tsecond2 of the second CG transmission occasion, and the retransmission time Tretrans2 corresponding to the second CG transmission occasion satisfy Tlatest2–Tsecond2<Tretrans2, the MCS indicated by the fourth MCS information included in the adjustment information sent by the radio access network device to the terminal is lower than the MCS configured by the third MCS information in the CG configuration information. Optionally, the retransmission time Tretrans2 corresponding to the second CG transmission occasion is related to the slot configuration of the terminal and the terminal capability. In this implementation, the data transmitted on the first CG transmission occasion and the data transmitted on the second CG transmission occasion may belong to the same picture frame, the second CG transmission occasion contains sufficient resources, and the latest reception time Tlatest2 of the picture frame, the time Tsecond2 of the second CG transmission occasion, and the retransmission time Tretrans2 corresponding to the second CG transmission occasion satisfy Tlatest2–Tsecond2<Tretrans2.

[0196] In some possible implementations of the apparatus 1900, in addition to the aforementioned third MCS information, the CG configuration information further includes third FDRA information; in addition to the aforementioned fourth MCS information, the adjustment information further includes fourth FDRA information. The third FDRA information configures frequency domain resources for each of the one or more first CG transmission occasions, and the fourth FDRA information indicates frequency domain resources for each of the one or more second CG transmission occasions. Optionally, the frequency domain resources indicated by the fourth FDRA information are more than the frequency domain resources configured by the third FDRA information. This implementation can be understood as: when the latest reception time Tlatest2 of a picture frame, the time Tsecond2 of the second CG transmission occasion, and the retransmission time Tretrans2 corresponding to the second CG transmission occasion satisfy Tlatest2–Tsecond2<Tretrans2, the MCS indicated by the fourth MCS information contained in the adjustment information sent by the radio access network device to the terminal is lower than the MCS configured by the third MCS information in the CG configuration information, and the frequency domain resources indicated by the fourth FDRA information contained in the adjustment information are more than the frequency domain resources configured by the third FDRA information in the CG configuration information. Optionally, the retransmission time Tretrans2 corresponding to the second CG transmission occasion is related to the slot configuration of the terminal and the terminal capability. In this implementation, the data transmitted on the first CG transmission occasion and the data transmitted on the second CG transmission occasion may belong to the same picture frame, the resources included in the second CG transmission occasion are insufficient, and the latest reception time Tlatest2 of the picture frame, the time Tsecond2 of the second CG transmission occasion, and the retransmission time Tretrans2 corresponding to the second CG transmission occasion satisfy Tlatest2–Tsecond2<Tretrans2.

[0197] In some possible implementations of the apparatus 1900, in addition to being configured to send the aforementioned CG configuration information including the third MCS information and the adjustment information including the fourth MCS information to a terminal, the interface module 1901 is further configured to send second scheduling information to the terminal, where the second scheduling information is used to schedule data transmission on time domain resources other than the plurality of CG transmission occasions described above. The processing module 1902 is further configured to control the apparatus 1900 to perform data transmission with the terminal on time domain resources other than the plurality of CG transmission occasions described above. In this implementation, the data transmitted on the first CG transmission occasion and the data transmitted on the second CG transmission occasion may belong to the same picture frame, the resources included in the aforementioned second CG transmission occasion are insufficient, and the latest reception time Tlatest2 of the picture frame, the time Tsecond2 of the second CG transmission occasion, and the retransmission time Tretrans2 corresponding to the second CG transmission occasion satisfy Tlatest2–Tsecond2<Tretrans2.

[0198] In some possible implementations of the apparatus 1900, the interface module 1901 is further configured to send second activation information to a terminal. The processing module 1902 is configured to control the apparatus 1900 to perform data transmission with the terminal at one or more first transmission occasions, which includes: the processing module 1902 is configured to control, according to the second activation information, the apparatus 1900 to perform data transmission with the terminal at one or more first CG transmission occasions. Optionally, the foregoing second activation information includes fifth MCS information, and the foregoing adjustment information includes sixth MCS information. The fifth MCS information indicates an MCS for each of the one or more first CG transmission occasions, and the sixth MCS information indicates an MCS for each of the one or more second CG transmission occasions. Optionally, the MCS indicated by the sixth MCS information is lower than the MCS configured by the fifth MCS information. This implementation may be understood as: when the latest reception time Tlatest2 of a picture frame, the time Tsecond2 of the second CG transmission occasion, and the retransmission time Tretrans2 corresponding to the second CG transmission occasion satisfy Tlatest2–Tsecond2<Tretrans2, the MCS indicated by the sixth MCS information included in the adjustment information sent by the radio access network device to the terminal is lower than the MCS indicated by the fifth MCS information in the second activation information. Optionally, the retransmission time Tretrans2 corresponding to the second CG transmission occasion is related to the slot configuration and the capability of the terminal. In this implementation, the data transmitted at the first CG transmission occasion and the data transmitted at the second CG transmission occasion may belong to a same picture frame, the second CG transmission occasion contains sufficient resources, and the latest reception time Tlatest2 of the picture frame, the time Tsecond2 of the second CG transmission occasion, and the retransmission time Tretrans2 corresponding to the second CG transmission occasion satisfy Tlatest2–Tsecond2<Tretrans2.

[0199] In some possible implementations of apparatus 1900, in addition to the aforementioned fifth MCS information, the second activation information further includes fifth FDRA information; in addition to the aforementioned sixth MCS information, the adjustment information further includes sixth FDRA information. The fifth FDRA information indicates the frequency domain resource of each first CG transmission occasion among the one or more first CG transmission occasions, and the sixth FDRA information indicates the frequency domain resource of each second CG transmission occasion among the one or more second CG transmission occasions. Optionally, the frequency domain resources indicated by the sixth FDRA information are more than the frequency domain resources configured by the fifth FDRA information. This implementation may be understood as: when the latest reception time Tlatest2 of a picture frame, the time Tsecond2 of the second CG transmission occasion, and the retransmission time Tretrans2 corresponding to the second CG transmission occasion satisfy Tlatest2–Tsecond2<Tretrans2, the MCS indicated by the sixth MCS information included in the adjustment information sent by the radio access network device to the terminal is lower than the MCS indicated by the fifth MCS information in the second activation information, and the frequency domain resources indicated by the sixth FDRA information included in the adjustment information are more than the frequency domain resources indicated by the fifth FDRA information in the second activation information. Optionally, the retransmission time Tretrans2 corresponding to the second CG transmission occasion is related to the slot configuration of the terminal and the terminal capability. In this implementation, the data transmitted on the first CG transmission occasion and the data transmitted on the second CG transmission occasion may belong to the same picture frame, the resources included in the second CG transmission occasion are insufficient, and the latest reception time Tlatest2 of the picture frame, the time Tsecond2 of the second CG transmission occasion, and the retransmission time Tretrans2 corresponding to the second CG transmission occasion satisfy Tlatest2–Tsecond2<Tretrans2.

[0200] In some possible implementations of apparatus 1900, in addition to being configured to send the aforementioned second activation information including the fifth MCS information and the adjustment information including the sixth MCS information to the terminal, the interface module 1901 is further configured to send third scheduling information to the terminal, where the third scheduling information is configured to schedule data transmission on time domain resources other than the plurality of CG transmission occasions described above. The processing module 1902 is further configured to control the apparatus 1900 to perform data transmission with the terminal on the time domain resources other than the plurality of CG transmission occasions described above. In this implementation, the data transmitted on the first CG transmission occasion and the data transmitted on the second CG transmission occasion may belong to the same picture frame, the resources included in the aforementioned second CG transmission occasion are insufficient, and the latest reception time Tlatest2 of the picture frame, the time Tsecond2 of the second CG transmission occasion, and the retransmission time Tretrans2 corresponding to the second CG transmission occasion satisfy Tlatest2–Tsecond2<Tretrans2.

[0201] In some possible embodiments of device 1900, the aforementioned second activation information is scrambled by a third RNTI, and the aforementioned adjustment information is scrambled by a fourth RNTI. The third RNTI is different from the fourth RNTI; or, the third RNTI is the same as the fourth RNTI, and both the adjustment information and the second activation information include a second field, wherein the second field in the adjustment information is set to a predetermined value.

[0202] It is understood that the beneficial effects of the above-mentioned device 1900 and various possible implementations can be referred to the descriptions in the foregoing method embodiments or invention content, and will not be repeated here.

[0203] Optionally, the device 1900 may further include a storage module 1903 for storing data or instructions (also referred to as code or program). The other modules may interact with or be coupled to the storage module to implement corresponding methods or functions. For example, the processing module 1902 may read data or instructions from the storage module 1903, enabling the device 1900 to implement the methods described in the above embodiments.

[0204] In one example, the modules in the aforementioned device can be one or more integrated circuits configured to implement the methods described above, such as: one or more application-specific integrated circuits (ASICs), or one or more digital signal processors (DSPs), or one or more field-programmable gate arrays (FPGAs), or a combination of at least two of these integrated circuit forms. As another example, when the modules in the device can be implemented in the form of a processing element scheduler, the processing element can be a general-purpose processor, such as a central processing unit (CPU) or other processor capable of calling programs. Furthermore, these units can be integrated together to implement a system-on-a-chip (SOC).

[0205] refer to Figure 20 This is a schematic diagram of an apparatus provided in an embodiment of this application, which can be used to implement the above-described methods 1000, 1200, 1500, and various possible implementations. For example... Figure 20As shown, the device includes a processor 2010 and an interface 2030, with the processor 2010 coupled to the interface 2030. The interface 2030 is used to enable communication with other modules or devices. The interface 2030 can be a transceiver or an input / output interface. The interface 2030 can be, for example, an interface circuit. Optionally, the device also includes a memory 2020 for storing instructions executed by the processor 2010, or storing input data required by the processor 2010 to execute instructions, or storing data generated after the processor 2010 executes instructions.

[0206] Methods 1000, 1200, and 1500, as well as various possible implementations, can be implemented by the processor 2010 calling programs or instructions stored in the memory 2020. The memory 2020 can be internal or external to the device, and this application does not limit it in this regard.

[0207] Optionally, Figure 19 The functions / implementation process of interface module 1901 and processing module 1902 can be obtained through Figure 20 The processor 2010 in the illustrated device implements this. Alternatively, Figure 19 The function / implementation process of the processing module 1902 can be obtained through Figure 20 The processor 2010 in the device shown implements this. Figure 19 The function / implementation process of interface module 1901 can be accessed through... Figure 20 The interface 2030 in the device shown is implemented, for example, the function / implementation of the interface module 1901 can be implemented by the processor calling program instructions in memory to drive the interface 2030.

[0208] When the aforementioned device is a chip applied to a terminal, the chip in the terminal implements the functions of the terminal in the above method embodiments. The chip receives information from other modules (such as radio frequency modules or antennas) in the terminal, and this information comes from other terminals or wireless access network devices; or, the chip sends information to other modules (such as radio frequency modules or antennas) in the terminal, and this information is sent by the terminal to other terminals or wireless access network devices.

[0209] When the aforementioned device is a chip applied to a wireless access network (WLAN) device, the chip implements the functions of the WLAN device in the above method embodiments. The chip receives information from other modules (such as radio frequency modules or antennas) within the WLAN device, the information originating from other WLAN devices or terminals; or, the chip sends information to other modules (such as radio frequency modules or antennas) within the WLAN device, the information being sent by the WLAN device to other WLAN devices or terminals.

[0210] Those skilled in the art will understand that the various numerical designations, such as "first," "second," etc., used in this application are merely for descriptive convenience and are not intended to limit the scope of the embodiments of this application, nor do they indicate a sequential order. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. "At least one" refers to one or more. "At least two" refers to two or more. "At least one," "any one," or similar expressions refer to any combination of these items, including any combination of single or multiple items. For example, at least one of a, b, or c can represent: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or multiple. "Multiple" refers to two or more, and other quantifiers are similar.

[0211] It should be understood that in the various embodiments of this application, the order of the above-mentioned processes does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0212] In the above embodiments, implementation can be achieved entirely or partially through software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented entirely or partially in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of this application are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that integrates one or more available media. The available medium can be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid-state disk (SSD)).

[0213] The steps of the methods described in the embodiments of this application can be directly embedded in hardware, a software unit executed by a processor, or a combination of both. The software unit can be stored in random access memory (RAM), flash memory, read-only memory (ROM), registers, hard disk, removable disk, or any other form of storage medium in the art. Exemplarily, the storage medium can be connected to the processor so that the processor can read information from the storage medium and write information to the storage medium. Optionally, the storage medium can also be integrated into the processor. The processor and the storage medium can be disposed in an ASIC.

[0214] This application also provides a computer-readable medium having a computer program stored thereon, which, when executed by a computer, implements the functions of any of the above method embodiments.

[0215] This application also provides a computer program product that, when executed by a computer, implements the functions of any of the above method embodiments.

[0216] The same or similar parts between the various embodiments in this application can be referred to mutually. In the various embodiments of this application, and in the various implementation methods / methods / implementations within each embodiment, unless otherwise specified or logically conflicting, the terminology and / or descriptions between different embodiments and between the various implementation methods / methods / implementations within each embodiment are consistent and can be mutually referenced. The technical features in different embodiments and the various implementation methods / methods / implementations within each embodiment can be combined according to their inherent logical relationships to form new embodiments, implementation methods, methods, or implementation approaches. The above-described embodiments of this application do not constitute a limitation on the scope of protection of this application.

[0217] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application.

Claims

1. A data transmission method, characterized in that, The method includes: Receive configuration information from a network device, wherein the configuration information configures multiple transmission opportunities; Data is transmitted with the network device at one or more first transmission opportunities, wherein the one or more first transmission opportunities are a subset of the plurality of transmission opportunities; Receive adjustment information from the network device; and Data is transmitted with the network device at one or more second transmission opportunities based on the adjustment information, wherein the one or more second transmission opportunities are a subset of the plurality of transmission opportunities, and the one or more second transmission opportunities are different from the one or more first transmission opportunities; wherein Data transmission at one or more first transmission times is not affected by the adjustment information, which includes modulation and coding scheme (MCS) information. The adjustment information adjusts the transmission times within the period in which the adjustment information is received, but does not adjust the transmission times outside the period in which the adjustment information is received.

2. The method according to claim 1, characterized in that, The configuration information is semi-static scheduling (SPS) configuration information, the transmission timing is SPS transmission timing, the first transmission timing is the first SPS transmission timing, and the second transmission timing is the second SPS transmission timing; The method further includes: receiving first activation information from the network device; The data transmission with the network device at one or more first transmission times includes: Data is transmitted with the network device at one or more first SPS transmission times based on the first activation information.

3. The method according to claim 2, characterized in that, The first activation information includes first MCS information, and the adjustment information includes second MCS information; The first MCS information indicates the MCS of each of the one or more first SPS transmission opportunities, and the second MCS information indicates the MCS of each of the one or more second SPS transmission opportunities.

4. The method according to claim 3, characterized in that, The MCS indicated by the second MCS information is lower than the MCS indicated by the first MCS information.

5. The method according to claim 3 or 4, characterized in that, The first activation information also includes first frequency domain resource allocation (FDRA) information, and the adjustment information also includes second FDRA information; The first FDRA information indicates the frequency domain resources of each of the one or more first SPS transmission opportunities, and the second FDRA information indicates the frequency domain resources of each of the one or more second SPS transmission opportunities.

6. The method according to claim 5, characterized in that, The second FDRA information indicates more frequency domain resources than the first FDRA information indicates.

7. The method according to claim 4 or 6, characterized in that, The data transmitted during the first SPS transmission and the data transmitted during the second SPS transmission belong to the same frame. The latest reception time Tlatest1 of the frame, the time Tsecond1 of the second SPS transmission, and the retransmission time Tretrans1 corresponding to the second SPS transmission satisfy Tlatest1 – Tsecond1. <Tretrans1。 8. The method according to claim 7, characterized in that, The method is executed by a terminal or a module of the terminal, and the retransmission time Tretrans1 corresponding to the second SPS transmission timing is related to the time slot configuration and terminal capabilities of the terminal.

9. The method according to claim 2, characterized in that, The first activation information is scrambled by the first wireless network temporary identifier (RNTI), and the adjustment information is scrambled by the second RNTI. The first RNTI is different from the second RNTI; or the first RNTI is the same as the second RNTI, and both the adjustment information and the first activation information include a first field, wherein the first field in the adjustment information is set to a predetermined value.

10. The method according to claim 1, characterized in that, The configuration information is the configuration authorization CG configuration information, the transmission timing is the CG transmission timing, the first transmission timing is the first CG transmission timing, and the second transmission timing is the second CG transmission timing.

11. The method according to claim 10, characterized in that, The data transmission with the network device at one or more first transmission times includes: Data is transmitted with the network device at one or more first CG transmission times according to the CG configuration information.

12. The method according to claim 11, characterized in that, The CG configuration information includes third MCS information, and the adjustment information includes fourth MCS information; The third MCS information configures the MCS of each of the one or more first CG transmission opportunities, and the fourth MCS information indicates the MCS of each of the one or more second CG transmission opportunities.

13. The method according to claim 12, characterized in that, The MCS indicated by the fourth MCS information is lower than the MCS configured by the third MCS information.

14. The method according to claim 12 or 13, characterized in that, The CG configuration information also includes third FDRA information, and the adjustment information also includes fourth FDRA information; The third FDRA information configures the frequency domain resources of each of the one or more first CG transmission opportunities, and the fourth FDRA information indicates the frequency domain resources of each of the one or more second CG transmission opportunities.

15. The method according to claim 14, characterized in that, The fourth FDRA information indicates more frequency domain resources than the third FDRA information configures.

16. The method according to claim 13 or 15, characterized in that, The data transmitted during the first CG transmission and the data transmitted during the second CG transmission belong to the same frame. The latest reception time Tlatest2 of the frame, the time Tsecond2 of the second CG transmission, and the retransmission time Tretrans2 corresponding to the second CG transmission satisfy Tlatest2 – Tsecond2. <Tretrans2。 17. The method according to claim 16, characterized in that, The method is executed by a terminal or a module of the terminal, and the retransmission time Tretrans2 corresponding to the second CG transmission timing is related to the time slot configuration and terminal capabilities of the terminal.

18. The method according to claim 10, characterized in that, The method further includes: receiving second activation information from the network device; The data transmission with the network device at one or more first transmission times includes: Data is transmitted with the network device at one or more first CG transmission times based on the second activation information.

19. The method according to claim 18, characterized in that, The second activation information includes the fifth MCS information, and the adjustment information includes the sixth MCS information; The fifth MCS information indicates the MCS of each of the one or more first CG transmission opportunities, and the sixth MCS information indicates the MCS of each of the one or more second CG transmission opportunities.

20. The method according to claim 19, characterized in that, The MCS indicated by the sixth MCS information is lower than the MCS configured by the fifth MCS information.

21. The method according to claim 19 or 20, characterized in that, The second activation information also includes fifth FDRA information, and the adjustment information also includes sixth FDRA information; The fifth FDRA information indicates the frequency domain resources of each of the one or more first CG transmission opportunities, and the sixth FDRA information indicates the frequency domain resources of each of the one or more second CG transmission opportunities.

22. The method according to claim 21, characterized in that, The frequency domain resources indicated by the sixth FDRA information are more than the frequency domain resources configured by the fifth FDRA information.

23. The method according to claim 20 or 22, characterized in that, The data transmitted during the first CG transmission and the data transmitted during the second CG transmission belong to the same frame. The latest reception time Tlatest2 of the frame, the time Tsecond2 of the second CG transmission, and the retransmission time Tretrans2 corresponding to the second CG transmission satisfy Tlatest2 – Tsecond2. <Tretrans2。 24. The method according to claim 23, characterized in that, The method is executed by a terminal or a module of the terminal, and the retransmission time Tretrans2 corresponding to the second CG transmission timing is related to the time slot configuration and terminal capabilities of the terminal.

25. The method according to claim 18, characterized in that, The second activation information is scrambled by the third RNTI, and the adjustment information is scrambled by the fourth RNTI; The third RNTI is different from the fourth RNTI; or the third RNTI is the same as the fourth RNTI, and both the adjustment information and the second activation information include a second field, wherein the second field in the adjustment information is set to a predetermined value.

26. A communication device, characterized in that, include: A processor coupled to a memory for storing programs or instructions that, when executed by the processor, cause the apparatus to perform the method as described in any one of claims 1 to 25.

27. A computer-readable storage medium having instructions stored thereon, characterized in that, When the instructions are executed, they cause the computer to perform the method as described in any one of claims 1 to 25.

28. A computer program product, characterized in that, Includes computer program code that, when run, implements the method as described in any one of claims 1 to 25.

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