Communication method and device

Abstract

The invention provides a communication method and device. The method comprises the step of transmitting a G link data information demodulation reference signal on a management G link through a superframe. Wherein the configuration mode for transmitting the G-link data information demodulation reference signal comprises at least one of the following modes: one G-link data information demodulation reference signal is configured in each superframe, and one G-link data information demodulation reference signal is configured in each wireless frame for transmitting the G-link data information in each superframe; and one G link data information demodulation reference signal is configured in each half superframe in each superframe. Therefore, the channel overhead is saved while the channel change state is ensured to be obtained in time.

Description

Technical Field

[0001] This application relates to the field of communications, and more particularly to a communication method and apparatus. Background Technology

[0002] Currently, short-range wireless communication systems are based on CP-OFDM (Cyclic Prefix Orthogonal Frequency Division Multiplexing) waveform transmission with a subcarrier spacing Δf = 480 kHz. A 1 ms superframe contains 48 radio frames, each containing several symbols, and a 20 MHz system bandwidth includes 39 subcarriers. Summary of the Invention

[0003] This application provides a communication method and apparatus. The method includes a configuration scheme for managing the demodulation reference signal of link data information.

[0004] Firstly, this application provides a communication method. The method includes: transmitting a G-link data demodulation reference signal via a superframe on a managed G-link; wherein the configuration of the transmitted G-link data demodulation reference signal includes at least one of the following: configuring one G-link data demodulation reference signal within each superframe, configuring one G-link data demodulation reference signal in each radio frame used for transmitting G-link data information within each superframe, and configuring one G-link data demodulation reference signal in each half-superframe within each superframe. In this way, by reducing or increasing the configuration period of the G-link data demodulation reference signal, it can adapt to different degrees of channel state change, ensuring timely acquisition of channel state changes while saving channel overhead.

[0005] In one possible implementation, the method further includes sending higher-layer signaling to instruct the configuration of either Format0 or Format1. Format0 supports low-time-density G-link data demodulation reference signal configuration, while Format1 supports high-time-density G-link data demodulation reference signal configuration. This allows the terminal node to promptly obtain the channel state based on the G-link data demodulation reference signal when channel state changes are slow, thus ensuring correct demodulation of the G-link data. Furthermore, increasing the configuration period of the G-link data demodulation reference signal can reduce channel overhead when channel state changes are slow.

[0006] In one possible implementation, the frame structure of the superframe is a class A frame, a class B frame, and a class C frame; wherein the scheduling period of the class A frame is the superframe granularity, the scheduling period of the class B frame is the semi-superframe granularity, and the scheduling period of the class C frame is the radio frame granularity.

[0007] In one possible implementation, the frame structure is a Class A frame, with Format0 configuration format used to indicate that one G-link data demodulation reference signal is configured in each superframe, and Format1 configuration format used to indicate that one G-link data demodulation reference signal is configured in each radio frame used to transmit G-link data information in each superframe.

[0008] In one possible implementation, the frame structure is a Class B frame. The Format0 configuration format is used to indicate that one G-link data demodulation reference signal is configured in each half-superframe, and the Format1 configuration format is used to indicate that one G-link data demodulation reference signal is configured in each radio frame used to transmit G-link data information in each half-superframe.

[0009] In one possible implementation, the frame structure is a Class C frame, and the Format1 configuration format is used to indicate that each radio frame used to transmit G-link data information is configured with a G-link data information demodulation reference signal.

[0010] In one possible implementation, the demodulation reference signal for G-link data information occupies the first symbol of the G-link data information transmitted in each superframe.

[0011] In one possible implementation, the first symbol for transmitting G-link data information in a superframe is the first symbol used to transmit G-link data information after removing the synchronization sequence, broadcast information, control information resource overhead indication CR-IND information, G-link control information GCI information, and power adjustment protection signal PAPS signal overhead resources in the superframe.

[0012] In one possible implementation, the G-link data demodulation reference signal occupies the first symbol of each radio frame used to transmit G-link data information.

[0013] In one possible implementation, the first symbol of the radio frame used to transmit G-link data information is the first symbol used to transmit G-link data information after removing the synchronization sequence, broadcast information, CR-IND information, GCI information, and PAPS signal overhead resources from the radio frame used to transmit G-link data information.

[0014] In one possible implementation, the demodulation reference signal for G-link data information occupies the first symbol of the G-link data information transmitted in each half-superframe.

[0015] In one possible implementation, the first symbol for transmitting G-link data information in a semi-superframe is the first symbol used for transmitting G-link data information after removing the synchronization sequence, broadcast information, CR-IND information, GCI information, and PAPS signal overhead resources in the semi-superframe.

[0016] In one possible implementation, the mapping between the G-link data demodulation reference signal and the antenna ports supports 1 to 4 antenna ports.

[0017] In one possible implementation, the number of antenna ports is 1, and each effective subcarrier is mapped to the demodulation reference signal of the G-link data information of one antenna port. The DC subcarrier is not mapped to the demodulation reference signal of the G-link data information.

[0018] In one possible implementation, there are 2 antenna ports, with each pair of consecutive effective subcarriers forming a group. The demodulation reference signal for the G-link data information of antenna port 0 is mapped to the first effective subcarrier, and the demodulation reference signal for the G-link data information of antenna port 1 is mapped to the second effective subcarrier. The DC subcarrier is not mapped to the demodulation reference signal for the G-link data information.

[0019] In one possible implementation, there are 3 antenna ports, with each group consisting of three consecutive effective subcarriers. The demodulation reference signal for the G-link data information of antenna port 0 is mapped to the first effective subcarrier, the demodulation reference signal for the G-link data information of antenna port 1 is mapped to the second effective subcarrier, the demodulation reference signal for the G-link data information of antenna port 2 is mapped to the third effective subcarrier, and the DC subcarrier is not mapped to the demodulation reference signal for the G-link data information.

[0020] In one possible implementation, there are 4 antenna ports, with each pair of consecutive effective subcarriers forming a group. The demodulation reference signal for the G-link data information of antenna port 0 and antenna port 1 is mapped to the first effective subcarrier, and the demodulation reference signal for the G-link data information of antenna port 2 and antenna port 3 is mapped to the second effective subcarrier. The DC subcarrier is not mapped to the demodulation reference signal for the G-link data information.

[0021] Secondly, this application provides a communication method, including: transmitting a T-link data information demodulation reference signal via a superframe on a terminal T-link; wherein the configuration of the T-link data information demodulation reference signal includes at least one of the following: configuring one T-link data information demodulation reference signal in each superframe, configuring one T-link data information demodulation reference signal in each radio frame used for transmitting T-link data information in each superframe, and configuring one T-link data information demodulation reference signal in each half-superframe in each superframe.

[0022] In one possible implementation, before transmitting T-link data radio frames on the T-link, the method further includes: receiving higher-layer signaling, which indicates the configuration of Format0 or Format1, wherein Format0 supports low-time-density T-link data demodulation reference signal configuration and Format1 supports high-time-density T-link data demodulation reference signal configuration.

[0023] In one possible implementation, the frame structure of the superframe is a class A frame, a class B frame, and a class C frame; wherein the scheduling period of the class A frame is the superframe granularity, the scheduling period of the class B frame is the semi-superframe granularity, and the scheduling period of the class C frame is the radio frame granularity.

[0024] In one possible implementation, the frame structure is a Class A frame, with Format0 configuration format used to indicate that one T-link data demodulation reference signal is configured in each superframe, and Format1 configuration format used to indicate that one T-link data demodulation reference signal is configured in each radio frame used to transmit T-link data information in each superframe.

[0025] In one possible implementation, the frame structure is a Class B frame. The Format0 configuration format is used to indicate that one T-link data demodulation reference signal is configured in each half-superframe, and the Format1 configuration format is used to indicate that one T-link data demodulation reference signal is configured in each radio frame used to transmit T-link data information in each half-superframe.

[0026] In one possible implementation, the frame structure is a Class C frame, and the Format1 configuration format is used to indicate that each radio frame used to transmit T-link data information is configured with a T-link data information demodulation reference signal.

[0027] In one possible implementation, the T-link data demodulation reference signal occupies the first symbol of the T-link data information transmitted in each superframe.

[0028] In one possible implementation, the first symbol for transmitting T-link data information in a superframe is the first symbol used for transmitting T-link data information after removing the T-link control information (TCI) and channel sounding signal (SRS) overhead resources in the superframe.

[0029] In one possible implementation, the T-link data demodulation reference signal occupies the first symbol of each radio frame used to transmit T-link data.

[0030] In one possible implementation, the first symbol of the radio frame used to transmit T-link data information is the first symbol used to transmit T-link data information after removing the T-link control information (TCI) and channel sounding signal (SRS) overhead resources from the radio frame used to transmit T-link data information.

[0031] In one possible implementation, the demodulation reference signal for T-link data information occupies the first symbol of the T-link data information transmitted in each half-superframe.

[0032] In one possible implementation, the first symbol for transmitting T-link data information in a semi-superframe is the first symbol used for transmitting T-link data information after removing the T-link control information (TCI) and channel sounding signal (SRS) overhead resources from the semi-superframe.

[0033] In one possible implementation, the mapping between the T-link data demodulation reference signal and the antenna port supports 1 to 4 antenna ports.

[0034] In one possible implementation, the number of antenna ports is 1, and each effective subcarrier is mapped to the demodulation reference signal of the T-link data information of one antenna port. The DC subcarrier is not mapped to the demodulation reference signal of the T-link data information.

[0035] In one possible implementation, there are 2 antenna ports, with each pair of consecutive effective subcarriers forming a group. The demodulation reference signal for the T-link data information of antenna port 0 is mapped to the first effective subcarrier, and the demodulation reference signal for the T-link data information of antenna port 1 is mapped to the second effective subcarrier. The DC subcarrier is not mapped to the demodulation reference signal for the T-link data information.

[0036] In one possible implementation, there are 3 antenna ports, with each group consisting of three consecutive effective subcarriers. The demodulation reference signal for the T-link data information of antenna port 0 is mapped to the first effective subcarrier, the demodulation reference signal for the T-link data information of antenna port 1 is mapped to the second effective subcarrier, the demodulation reference signal for the T-link data information of antenna port 2 is mapped to the third effective subcarrier, and the DC subcarrier is not mapped to the demodulation reference signal for the T-link data information.

[0037] In one possible implementation, there are 4 antenna ports, with each pair of consecutive effective subcarriers forming a group. The demodulation reference signal for the T-link data information of antenna port 0 and antenna port 1 is mapped to the first effective subcarrier, and the demodulation reference signal for the T-link data information of antenna port 2 and antenna port 3 is mapped to the second effective subcarrier. The DC subcarrier is not mapped to the demodulation reference signal for the T-link data information.

[0038] Thirdly, this application provides a frame structure including a superframe. Each superframe includes eight radio frames, which are management radio frames (GF), terminal radio frames (TF), or hybrid radio frames (MF). All symbols in the GF frame are used for management G-link transmission, all symbols in the TF frame are used for terminal T-link transmission, and the MF frame includes management symbols (GS), terminal symbols (TS), and handover symbols. GS is used for G-link transmission, TS is used for T-link transmission, and the handover symbols are used for GS and TS symbol handover time protection. The configuration of the superframe on the G-link includes at least one of the following: each superframe is configured with one G-link. The link data demodulation reference signal is configured in one radio frame for transmitting G link data information within each superframe, and in one half-superframe within each superframe. The configuration of the superframe on the T link includes at least one of the following: one T link data demodulation reference signal is configured in each superframe, one T link data demodulation reference signal is configured in each radio frame for transmitting T link data information within each superframe, and one T link data demodulation reference signal is configured in each half-superframe within each superframe.

[0039] In one possible implementation, the frame structure of the superframe is a class A frame, a class B frame, and a class C frame; wherein the scheduling period of the class A frame is the superframe granularity, the scheduling period of the class B frame is the semi-superframe granularity, and the scheduling period of the class C frame is the radio frame granularity.

[0040] In one possible implementation, Class A and Class B frames support Format0 and Format1 configuration formats, while Class C frames support Format1 configuration format. Specifically, on the G link, Format0 configuration format supports demodulation reference signal configuration for G link data information with low temporal density, while Format1 configuration format supports demodulation reference signal configuration for G link data information with high temporal density. On the T link, Format0 configuration format supports demodulation reference signal configuration for T link data information with low temporal density, while Format1 configuration format supports demodulation reference signal configuration for T link data information with high temporal density.

[0041] In one possible implementation, the frame structure of the superframe is a Class A frame; on the G link, the Format0 configuration format is used to indicate that one G link data demodulation reference signal is configured in each superframe, and the Format1 configuration format is used to indicate that one G link data demodulation reference signal is configured in each radio frame used to transmit G link data information in each superframe; on the T link, the Format0 configuration format is used to indicate that one T link data demodulation reference signal is configured in each superframe, and the Format1 configuration format is used to indicate that one T link data demodulation reference signal is configured in each radio frame used to transmit T link data information in each superframe.

[0042] In one possible implementation, the frame structure of the superframe is a Class B frame; on the G link, the Format0 configuration format is used to indicate that one G link data demodulation reference signal is configured in each half-superframe, and the Format1 configuration format is used to indicate that one G link data demodulation reference signal is configured in each radio frame used to transmit G link data information in each half-superframe; on the T link, the Format0 configuration format is used to indicate that one T link data demodulation reference signal is configured in each half-superframe, and the Format1 configuration format is used to indicate that one T link data demodulation reference signal is configured in each radio frame used to transmit T link data information in each half-superframe.

[0043] In one possible implementation, the superframe has a Class C frame structure; on the G link, the Format1 configuration format is used to indicate that each radio frame used to transmit G link data information is configured with one G link data demodulation reference signal. On the T link, the Format1 configuration format is used to indicate that each radio frame used to transmit T link data information is configured with one T link data demodulation reference signal.

[0044] In one possible implementation, the radio frame of a Class C frame is an MF frame.

[0045] Fourthly, this application provides a communication device, which includes a star flash module for transmitting star flash signals. The device includes a communication module for transmitting G-link data information demodulation reference signals via superframes on a managed G-link. The configuration method for transmitting the G-link data information demodulation reference signals includes at least one of the following: one G-link data information demodulation reference signal is configured in each superframe; one G-link data information demodulation reference signal is configured in each radio frame for transmitting G-link data information within each superframe; and one G-link data information demodulation reference signal is configured in each half-superframe within each superframe.

[0046] In one possible implementation, the transmitting module is also used to transmit higher-layer signaling, which is used to indicate the configuration of Format0 or Format1, wherein Format0 supports the configuration of demodulation reference signals for G-link data information with low time-domain density, and Format1 supports the configuration of demodulation reference signals for G-link data information with high time-domain density.

[0047] In one possible implementation, the frame structure of the superframe is a class A frame, a class B frame, and a class C frame; wherein the scheduling period of the class A frame is the superframe granularity, the scheduling period of the class B frame is the semi-superframe granularity, and the scheduling period of the class C frame is the radio frame granularity.

[0048] In one possible implementation, the frame structure is a Class A frame, with Format0 configuration format used to indicate that one G-link data demodulation reference signal is configured in each superframe, and Format1 configuration format used to indicate that one G-link data demodulation reference signal is configured in each radio frame used to transmit G-link data information in each superframe.

[0049] In one possible implementation, the frame structure is a Class B frame. The Format0 configuration format is used to indicate that one G-link data demodulation reference signal is configured in each half-superframe, and the Format1 configuration format is used to indicate that one G-link data demodulation reference signal is configured in each radio frame used to transmit G-link data information in each half-superframe.

[0050] In one possible implementation, the frame structure is a Class C frame, and the Format1 configuration format is used to indicate that each radio frame used to transmit G-link data information is configured with a G-link data information demodulation reference signal.

[0051] In one possible implementation, the demodulation reference signal for G-link data information occupies the first symbol of the G-link data information transmitted in each superframe.

[0052] In one possible implementation, the first symbol for transmitting G-link data information in a superframe is the first symbol used to transmit G-link data information after removing the synchronization sequence, broadcast information, control information resource overhead indication CR-IND information, G-link control information GCI information, and power adjustment protection signal PAPS signal overhead resources in the superframe.

[0053] In one possible implementation, the G-link data demodulation reference signal occupies the first symbol of each radio frame used to transmit G-link data information.

[0054] In one possible implementation, the first symbol of the radio frame used to transmit G-link data information is the first symbol used to transmit G-link data information after removing the synchronization sequence, broadcast information, CR-IND information, GCI information, and PAPS signal overhead resources from the radio frame used to transmit G-link data information.

[0055] In one possible implementation, the demodulation reference signal for G-link data information occupies the first symbol of the G-link data information transmitted in each half-superframe.

[0056] In one possible implementation, the first symbol for transmitting G-link data information in a semi-superframe is the first symbol used for transmitting G-link data information after removing the synchronization sequence, broadcast information, CR-IND information, GCI information, and PAPS signal overhead resources in the semi-superframe.

[0057] In one possible implementation, the mapping between the G-link data demodulation reference signal and the antenna ports supports 1 to 4 antenna ports.

[0058] In one possible implementation, the number of antenna ports is 1, and each effective subcarrier is mapped to the demodulation reference signal of the G-link data information of one antenna port. The DC subcarrier is not mapped to the demodulation reference signal of the G-link data information.

[0059] In one possible implementation, there are 2 antenna ports, with each pair of consecutive effective subcarriers forming a group. The demodulation reference signal for the G-link data information of antenna port 0 is mapped to the first effective subcarrier, and the demodulation reference signal for the G-link data information of antenna port 1 is mapped to the second effective subcarrier. The DC subcarrier is not mapped to the demodulation reference signal for the G-link data information.

[0060] In one possible implementation, there are 3 antenna ports, with each group consisting of three consecutive effective subcarriers. The demodulation reference signal for the G-link data information of antenna port 0 is mapped to the first effective subcarrier, the demodulation reference signal for the G-link data information of antenna port 1 is mapped to the second effective subcarrier, the demodulation reference signal for the G-link data information of antenna port 2 is mapped to the third effective subcarrier, and the DC subcarrier is not mapped to the demodulation reference signal for the G-link data information.

[0061] In one possible implementation, there are 4 antenna ports, with each pair of consecutive effective subcarriers forming a group. The demodulation reference signal for the G-link data information of antenna port 0 and antenna port 1 is mapped to the first effective subcarrier, and the demodulation reference signal for the G-link data information of antenna port 2 and antenna port 3 is mapped to the second effective subcarrier. The DC subcarrier is not mapped to the demodulation reference signal for the G-link data information.

[0062] Fifthly, this application provides a communication device, which includes a star flash module for transmitting star flash signals. The device includes a communication module for transmitting a T-link data information demodulation reference signal via a superframe on a terminal T-link. The configuration method for transmitting the T-link data information demodulation reference signal includes at least one of the following: one T-link data information demodulation reference signal is configured in each superframe; one T-link data information demodulation reference signal is configured in each radio frame for transmitting T-link data information within each superframe; and one T-link data information demodulation reference signal is configured in each half-superframe within each superframe.

[0063] In one possible implementation, the transmitting module is further configured to receive higher-layer signaling before transmitting T-link data radio frames on the T-link. The higher-layer signaling is used to indicate the configuration of Format0 or Format1, wherein Format0 supports the configuration of demodulation reference signals for T-link data information with low time-domain density, and Format1 supports the configuration of demodulation reference signals for T-link data information with high time-domain density.

[0064] In one possible implementation, the frame structure of the superframe is a class A frame, a class B frame, and a class C frame; wherein the scheduling period of the class A frame is the superframe granularity, the scheduling period of the class B frame is the semi-superframe granularity, and the scheduling period of the class C frame is the radio frame granularity.

[0065] In one possible implementation, the frame structure is a Class A frame, with Format0 configuration format used to indicate that one T-link data demodulation reference signal is configured in each superframe, and Format1 configuration format used to indicate that one T-link data demodulation reference signal is configured in each radio frame used to transmit T-link data information in each superframe.

[0066] In one possible implementation, the frame structure is a Class B frame. The Format0 configuration format is used to indicate that one T-link data demodulation reference signal is configured in each half-superframe, and the Format1 configuration format is used to indicate that one T-link data demodulation reference signal is configured in each radio frame used to transmit T-link data information in each half-superframe.

[0067] In one possible implementation, the frame structure is a Class C frame, and the Format1 configuration format is used to indicate that each radio frame used to transmit T-link data information is configured with a T-link data information demodulation reference signal.

[0068] In one possible implementation, the T-link data demodulation reference signal occupies the first symbol of the T-link data information transmitted in each superframe.

[0069] In one possible implementation, the first symbol for transmitting T-link data information in a superframe is the first symbol used for transmitting T-link data information after removing the T-link control information (TCI) and channel sounding signal (SRS) overhead resources in the superframe.

[0070] In one possible implementation, the T-link data demodulation reference signal occupies the first symbol of each radio frame used to transmit T-link data.

[0071] In one possible implementation, the first symbol of the radio frame used to transmit T-link data information is the first symbol used to transmit T-link data information after removing the T-link control information (TCI) and channel sounding signal (SRS) overhead resources from the radio frame used to transmit T-link data information.

[0072] In one possible implementation, the demodulation reference signal for T-link data information occupies the first symbol of the T-link data information transmitted in each half-superframe.

[0073] In one possible implementation, the first symbol for transmitting T-link data information in a semi-superframe is the first symbol used for transmitting T-link data information after removing the T-link control information (TCI) and channel sounding signal (SRS) overhead resources from the semi-superframe.

[0074] In one possible implementation, the mapping between the T-link data demodulation reference signal and the antenna port supports 1 to 4 antenna ports.

[0075] In one possible implementation, the number of antenna ports is 1, and each effective subcarrier is mapped to the demodulation reference signal of the T-link data information of one antenna port. The DC subcarrier is not mapped to the demodulation reference signal of the T-link data information.

[0076] In one possible implementation, there are 2 antenna ports, with each pair of consecutive effective subcarriers forming a group. The demodulation reference signal for the T-link data information of antenna port 0 is mapped to the first effective subcarrier, and the demodulation reference signal for the T-link data information of antenna port 1 is mapped to the second effective subcarrier. The DC subcarrier is not mapped to the demodulation reference signal for the T-link data information.

[0077] In one possible implementation, there are 3 antenna ports, with each group consisting of three consecutive effective subcarriers. The demodulation reference signal for the T-link data information of antenna port 0 is mapped to the first effective subcarrier, the demodulation reference signal for the T-link data information of antenna port 1 is mapped to the second effective subcarrier, the demodulation reference signal for the T-link data information of antenna port 2 is mapped to the third effective subcarrier, and the DC subcarrier is not mapped to the demodulation reference signal for the T-link data information.

[0078] In one possible implementation, there are 4 antenna ports, with each pair of consecutive effective subcarriers forming a group. The demodulation reference signal for the T-link data information of antenna port 0 and antenna port 1 is mapped to the first effective subcarrier, and the demodulation reference signal for the T-link data information of antenna port 2 and antenna port 3 is mapped to the second effective subcarrier. The DC subcarrier is not mapped to the demodulation reference signal for the T-link data information.

[0079] In one possible implementation, the Sparklink module and the WiFi module for WiFi signal transmission are located in different subsystems of the communication device. The Sparklink module subsystem and the WiFi module subsystem are integrated in the communication device with at least one of the following: Bluetooth system, Sparklink low energy (SLE) system, global navigation satellite system (GNSS), always-on system, power management unit (PMU), clock management unit (CMU), flash memory, application system, and audio system.

[0080] In one possible implementation, the StarScan module and the WiFi module for WiFi signal transmission are located in the same subsystem of the communication device. The subsystems of the StarScan module and the WiFi module are integrated into the communication device with at least one of the following: Bluetooth system, StarScan Low Power SLE system, GNSS, always-on system, PMU, CMU, flash memory, application system, and audio system.

[0081] In one possible implementation, the communication device further includes a Bluetooth module for transmitting Bluetooth signals and / or a WiFi module for transmitting WiFi signals. At least one of the Bluetooth module or WiFi module and the star-flash module coexist and communicate with each other through different antennas. The coexistence strategy includes at least one of the following: frequency division multiplexing, code division multiplexing, time division multiplexing, channel avoidance, or aggregation scheduling.

[0082] In one possible implementation, the communication device further includes a Bluetooth module for transmitting Bluetooth signals and / or a WiFi module for transmitting WiFi signals. At least one of the Bluetooth module or WiFi module coexists and communicates with the star-flash module through the same antenna. The coexistence strategy includes at least one of the following: frequency division multiplexing, code division multiplexing, time division multiplexing, software static strategy, or package traffic arbitration (PTA) strategy.

[0083] Sixthly, this application provides a communication device comprising: one or more processors; a memory for storing one or more computer programs or instructions; and, when the one or more computer programs or instructions are executed by the one or more processors, causing the one or more processors to implement the method as described in any one of the first to second aspects.

[0084] In a seventh aspect, this application provides a communication device, including a processor for performing the method as described in any one of the first to second aspects.

[0085] Eighthly, this application provides a communication system comprising: a management node and a terminal node; the management node is configured to perform the method as described in any one of the first aspects, and the terminal node is configured to perform the method as described in any one of the second aspects.

[0086] Ninthly, this application provides a communication device, the device comprising: a processing circuit and an interface circuit; wherein the interface circuit is configured to couple with a memory external to the communication device and provide a communication interface for the processing circuit to access the memory; the processing circuit is configured to execute program instructions in the memory to implement the method as described in any one of the first to second aspects.

[0087] In practical implementation, the communication device can be a chip, the input circuit can be an input pin, the output circuit can be an output pin, and the processing circuit can be a transistor, gate circuit, flip-flop, and various logic circuits. The input signal received by the input circuit can be received and input by, for example, but not limited to, a receiver, and the signal output by the output circuit can be output to, for example, but not limited to, a transmitter and transmitted by the transmitter. Furthermore, the input circuit and the output circuit can be the same circuit, which is used as the input circuit and the output circuit at different times. This application does not limit the specific implementation of the processor and various circuits.

[0088] In one implementation, the communication device can be a wireless communication device, i.e., a computer device that supports wireless communication functions. Specifically, the wireless communication device can be a terminal such as a smartphone, or a wireless access network device such as a base station. The network chip can also be called a system-on-a-chip (SoC), or simply a SoC chip. The communication chip may include a baseband processing chip and a radio frequency (RF) processing chip. The baseband processing chip is sometimes also called a modem or baseband chip. The RF processing chip is sometimes called an RF transceiver or RF chip. In physical implementation, some or all of the chips in the communication chip can be integrated within the SoC chip. For example, the baseband processing chip is integrated into the SoC chip, while the RF processing chip is not integrated with the SoC chip. The interface circuit can be the RF processing chip in the wireless communication device, and the processing circuit can be the baseband processing chip in the wireless communication device.

[0089] In another implementation, the communication device can be a component of a wireless communication device, such as an integrated circuit product like a network chip or communication chip. The interface circuit can be an input / output interface, interface circuit, output circuit, input circuit, pin, or related circuit on the chip or chip network. The processor can also be represented as a processing circuit or logic circuit.

[0090] In a tenth aspect, this application provides a computer-readable storage medium storing program code that, when executed by a processor, implements the method as described in any one of the first to second aspects.

[0091] Eleventhly, this application provides a chip comprising: at least one processor. The at least one processor is configured to perform the method as described in any one of the first to second aspects.

[0092] Optionally, the chip also includes memory. At least one processor is used to execute code in the memory, and when the at least one processor executes the code, the chip implements the method as described in any one of the first to second aspects.

[0093] In a twelfth aspect, this application provides a computer program product comprising instructions that, when run on a computer, cause the computer to perform the method as described in any one of the first to second aspects. Attached Figure Description

[0094] Figure 1 This is a schematic diagram illustrating the structure of a wireless frame as an example.

[0095] Figure 2 This is a schematic diagram of the structure of a superframe as an example.

[0096] Figure 3 This is a schematic diagram of the structure of a semi-superframe, as exemplarily shown.

[0097] Figure 4 A schematic diagram of a carrier wave is shown as an example;

[0098] Figure 5 This is an example of a frequency domain resource partitioning diagram;

[0099] Figure 6 This is an example illustrating the correspondence between frame structure and time slot allocation;

[0100] Figure 7 This is an example illustration of the time-domain location of the demodulation reference signal for G-link data information in a Class A frame;

[0101] Figure 8 This is an exemplary schematic diagram of the time-domain location of the demodulation reference signal for G-link data information in a Class A frame;

[0102] Figure 9 This is an exemplary schematic diagram of the time-domain location of the demodulation reference signal for G-link data information in a Class A frame;

[0103] Figure 10 This is an exemplary schematic diagram of the time-domain location of the demodulation reference signal for G-link data information in a Class B frame;

[0104] Figure 11 This is an exemplary schematic diagram of the time-domain location of the demodulation reference signal for G-link data information in a Class B frame;

[0105] Figure 12 This is an exemplary schematic diagram of the time-domain location of the demodulation reference signal for G-link data information in a Class A frame;

[0106] Figure 13 This is an exemplary schematic diagram of the time-domain location of the demodulation reference signal for Class C frame G link data information;

[0107] Figure 14 This is an exemplary schematic diagram of the time-domain location of the demodulation reference signal for Class C frame G link data information;

[0108] Figure 15 This is an exemplary schematic diagram of a single antenna port mapping;

[0109] Figure 16 This is an exemplary schematic diagram of a single antenna port mapping;

[0110] Figure 17 This is an exemplary schematic diagram of a single antenna port mapping;

[0111] Figure 18 This is an exemplary schematic diagram of a single antenna port mapping;

[0112] Figure 19 This is an example illustration of the time-domain location of the demodulation reference signal for T-link data information in a Class A frame;

[0113] Figure 20 This is an exemplary schematic diagram of the time-domain location of the demodulation reference signal for T-link data information in a Class A frame.

[0114] Figure 21 This is an exemplary schematic diagram of the time-domain location of the demodulation reference signal for T-link data information in a Class A frame.

[0115] Figure 22 This is an exemplary schematic diagram of the time-domain location of the demodulation reference signal for Class B frame T-link data information;

[0116] Figure 23 This is an exemplary schematic diagram of the time-domain location of the demodulation reference signal for Class B frame T-link data information;

[0117] Figure 24 This is an exemplary schematic diagram of the time-domain location of the demodulation reference signal for T-link data information in a Class A frame.

[0118] Figure 25 This is an exemplary schematic diagram of the time-domain location of the demodulation reference signal for Class C frame T link data information;

[0119] Figure 26 This is an exemplary schematic diagram of the time-domain location of the demodulation reference signal for Class C frame T link data information;

[0120] Figure 27 This is a flowchart illustrating a communication method as an example.

[0121] Figure 28 This is a schematic diagram illustrating the structure of a communication device as an example.

[0122] Figure 29 A schematic diagram of a chip architecture provided in an embodiment of this application;

[0123] Figure 30 This is a schematic diagram of another chip architecture provided in an embodiment of this application;

[0124] Figure 31 This is another schematic diagram of a chip architecture provided in an embodiment of this application;

[0125] Figure 32 This is another schematic diagram of a chip architecture provided in an embodiment of this application;

[0126] Figure 33 A schematic diagram of a chip module framework provided in an embodiment of this application;

[0127] Figure 34 This is a schematic diagram of another chip module framework provided in an embodiment of this application;

[0128] Figure 35 A schematic diagram illustrating the framework of a software static strategy provided in an embodiment of this application;

[0129] Figure 36 A schematic diagram illustrating the framework of a software static strategy provided in an embodiment of this application;

[0130] Figure 37 This is a schematic diagram of a message transmission arbitration strategy provided in an embodiment of this application. Detailed Implementation

[0131] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0132] The technical solutions provided in this application can be applied to, but are not limited to, short-range wireless communication systems and wireless communication systems that support longer-distance transmission (such as 1-18km, or over 18km) (such as the next-generation StarSpark wireless communication system). The short-range wireless communication system can include short-range wireless communication technology (also known as StarSpark 1.0 technology), which has advantages such as ultra-low latency, ultra-high reliability, and precise synchronization, making it suitable for applications in smart cars, smart homes, smart terminals, and smart manufacturing. For example, applications in smart car scenarios include: immersive in-vehicle sound field & noise reduction, wireless interactive projection, and 360-degree panoramic surround view, which can achieve an immersive interactive experience and improve vehicle safety.

[0133] Wireless communication systems that support longer transmission distances (e.g., 1–18 km) mainly include next-generation StarSpark wireless communication systems, such as StarSpark 2.0 and StarSpark 3.0. These systems are not only suitable for communication scenarios with low latency requirements, such as the aforementioned vehicle communication and industrial control scenarios, but also for communication scenarios with less stringent latency requirements.

[0134] In some possible implementations, the aforementioned communication system may be used in conjunction with a mobile communication system, including but not limited to 3GPP-related cellular systems such as 4G (e.g., Long Term Evolution, LTE), 5G (e.g., New Radio, NR), and future-oriented evolution systems (e.g., 6G). The communication system can also be an open radio access network (OORAN), a cloud radio access network (CRAN), or a WiFi system. Furthermore, the communication system can be a combination of two or more of the above systems.

[0135] The wireless short-range communication system provided in this application embodiment may include a management node (grantnode, G node) and a terminal node (terminalnode, T node).

[0136] In this context, the G node can be a node in the wireless short-range communication system that has resource scheduling capabilities and sends control information such as resource management information and / or data scheduling information. The T node can be a node in the wireless short-range communication system that receives the control information such as resource management information and / or data scheduling information sent by the G node, and performs data transmission or reception based on this control information. For ease of description, the short-range protocol in the wireless short-range communication system is referred to as the Star Flash protocol in this disclosure.

[0137] In the StarScan protocol corresponding to StarScan technology, there are uplink and downlink transmissions between the G node and the T node. Uplink transmission is achieved through the T link, which is the link between the T node and the G node, and can also be called the uplink. Downlink transmission is achieved through the G link, which is the link between the G node and the T node, and can also be called the downlink.

[0138] In this embodiment, the communication device has wireless communication capabilities and can be configured with multiple antennas. These multiple antennas may include at least one transmitting antenna for transmitting signals and at least one receiving antenna for receiving signals. Additionally, each communication device also includes a transmitter chain and a receiver chain. Those skilled in the art will understand that these chains may include multiple components related to signal transmission and reception (e.g., processors, modulators, multiplexers, demodulators, demultiplexers, or antennas). The communication device can be a management node or a terminal node, and this is not limited.

[0139] In this communication system, the management node (G node) is located on the network side and is used to help terminal nodes achieve wireless access. It is a device with wireless transceiver capabilities or a chip or chip system that can be installed in the device. Management nodes include, but are not limited to, network devices, radio access network (RAN) nodes, access network devices, RAN entities, or access nodes. Multiple management nodes in the communication system can be of the same type or different types.

[0140] In one possible scenario, the management node can be a base station, an evolved NodeB (eNodeB), an access point (AP), a transmission reception point (TRP), a next-generation NodeB (gNB), a next-generation base station in a 6th-generation (6G) mobile communication system, a base station in a future mobile communication system, or an access node in a WiFi system. The management node 110 can be a macro base station, a micro base station, an indoor station, a relay node, a donor node, or a radio controller in a CRAN scenario. The management node 110 can be a macro base station, a micro base station, an indoor station, a relay node, a donor node, an open radio access network (ORAN), or a radio controller in a centralized radio access network (CRAN) scenario. The management node can also be one or a group of antenna panels (including multiple antenna panels) of a 5G base station, or it can be a network node constituting a gNB, TRP, TP, or transmission measurement function (TMF), such as a central unit (CU), a distributed unit (DU), a CU-control plane (CP), a CU-user plane (UP), a radio unit (RU), or a roadside unit (RSU) with base station functionality. CUs and DUs can be set up separately or included in the same network element, such as a baseband unit (BBU). RUs can be included in radio equipment or radio units, such as remote radio units (RRUs), active antenna units (AAUs), or remote radio heads (RRHs).

[0141] In different systems, CU (or CU-control plane and CU-UP), DU, or RU may have different names, but those skilled in the art will understand their meaning. For example, in an ORAN system, CU can also be called O-CU (open CU), DU can also be called O-DU, CU-control plane can also be called O-CU-control plane, CU-UP can also be called O-CU-UP, and RU can also be called O-RU. For ease of description, the embodiments of this application use CU, CU-control plane, CU-UP, DU, and RU as examples. Any unit among CU (or CU-control plane, CU-UP), DU, and RU in the embodiments of this application can be implemented through software modules, hardware modules, or a combination of software modules and hardware modules.

[0142] Optionally, the management node can also be a server, wearable device, vehicle, or in-vehicle equipment. For example, in vehicle-to-everything (V2X) technology, the management node can be an RSU (Roadside Unit). Optionally, the management node can also be a control unit in autonomous driving, a central controller in a smart factory / smart home, or a handheld or automated remote control for flying equipment. Optionally, the management node can also be a central control unit, control panel, or other control device, such as a drone controller or a control unit in industrial control. All or part of the functions of the management node 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 management node in this application can also be a logical node, logical module, or software capable of implementing all or part of the management node functions.

[0143] In this application embodiment, the form of the management node is not limited. The device used to implement the function of the management node can be the management node itself; it can also be a device that supports the management node in implementing this function, such as a chip system. The device can be installed in the management node or used in conjunction with the management node.

[0144] A terminal node (T-node) is a device, equipment, module, chip, or chip system with transceiver capabilities. It can also be referred to as terminal equipment, user equipment (UE), access terminal, user unit (subscriber unit), user station, mobile station (MS), mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication equipment, user agent, or user device, etc. Terminal nodes 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 homes, smart offices, smart wearables, intelligent transportation, and smart cities.

[0145] The terminal nodes in the embodiments of this application can be mobile phones, cellular phones, smartphones, tablets, mice, remote controls, styluses, set-top boxes, routers, cameras, screens, smart screens, wireless data cards, personal digital assistant computers (PDAs), wireless modems, handsets, laptop computers, smartwatches, smart bracelets, wireless headphones, electronic whiteboards, machine-type communication (MTC) terminals, computers with wireless transceiver capabilities, virtual reality (VR) terminals, augmented reality (AR) terminals, smart home devices (e.g., refrigerators, televisions, air conditioners, washing machines, rice cookers, table lamps, electricity meters, etc.), smart robots, robotic arms, workshop equipment, wireless terminals in autonomous driving, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical care, wireless terminals in smart grids, and transportation security. Wireless terminals in various applications include those related to safety, smart cities, smart homes, in-vehicle terminals, in-vehicle screens, in-vehicle audio systems, car keys, roadside units (RSUs) with terminal functions, and flying equipment (e.g., intelligent robots, hot air balloons, drones, airplanes). The terminal node in this application can also be an in-vehicle module, in-vehicle component, in-vehicle chip, or in-vehicle unit integrated into a vehicle as one or more components or units. The terminal node can also be other devices with terminal functions; for example, it can be a device that performs terminal functions in device-to-device (D2D) communication.

[0146] The embodiments of this application do not limit the device form of the terminal. The device used to implement the function of the terminal node can be the terminal node itself; it can also be a device that supports the terminal node in implementing the function, such as a chip system. The device can be installed in the terminal node or used in conjunction with the terminal node. In the embodiments of this application, the chip system can be composed of chips or can include chips and other discrete devices.

[0147] It should be noted that the solutions in the embodiments of this application can also be applied to other communication systems, and the corresponding names can be replaced by the names of the corresponding functions in other communication systems.

[0148] For ease of understanding, an exemplary description of concepts related to this application is provided for reference, as follows:

[0149] Management node (Grant node):

[0150] A node that has resource scheduling capabilities and can send control information and data is referred to as a G node.

[0151] Terminal node:

[0152] A node that receives data scheduling information and sends data according to the data scheduling information is called a T node.

[0153] G-Link:

[0154] The communication link between the management node and the terminal node. This link can carry data channels, control channels, broadcast channels, synchronization signals, etc., between the management node and the terminal node. In this document, it may be referred to as the G-link.

[0155] T-link:

[0156] The communication link between the terminal node and the management node. This link can carry data channels, access channels, feedback signals, etc., between the terminal node and the management node. In this document, it may be referred to as the T-link.

[0157] Wireless frame:

[0158] Figure 1 For an exemplary schematic diagram of a wireless frame, please refer to... Figure 1 A radio frame contains 3840 Ts, with a time length of Tf = 125us. Radio frames are divided into three types: G frame (GF), T frame (TF), and mixed frame (MF).

[0159] All symbols in GF are used for G-link transmission.

[0160] All symbols in TF are used for T-link transmission.

[0161] MF contains several GS, GAP and several TS.

[0162] A G link is formed by several consecutive GF frames and consecutive GS symbols in MF radio frames. A T link is formed by consecutive TS symbols in MF radio frames and several consecutive TF frames.

[0163] For example, the symbol used for G link transmission is called the G symbol (GS), the symbol used for T link transmission is called the T symbol (TS), and the symbol used for G / T symbol switching time protection is called the switching symbol (GAP).

[0164] Superframe:

[0165] Figure 2 For an exemplary schematic diagram of a superframe, please refer to... Figure 2 The duration of a super frame (SF) is Tsf = 30720 × Ts = 1 ms. A super frame contains 8 radio frames, which are numbered sequentially from front to back as #0, #1, ..., #7.

[0166] Half-superframe:

[0167] Figure 3 For an exemplary schematic diagram of a semi-superframe, please refer to... Figure 3 In a superframe (1ms in duration), the first four radio frames form a half-superframe (HSF), designated HSF#0. The last four radio frames form a second (or another) half-superframe, designated HSF#1. That is, each half-superframe contains four radio frames.

[0168] Communication domain:

[0169] Within a 20MHz carrier bandwidth used by a G node, the set of resources consisting of the physical layer signals and physical layer information transmitted by the G node, as well as the resources that the G node can schedule and configure, is defined as a communication domain, and the G node is called the G node of that communication domain.

[0170] G-link and T-link:

[0171] A communication domain consists of the G-links and T-links of that communication domain:

[0172] A G-link in a communication domain is defined as a resource used by G nodes to transmit physical layer signals and physical layer information and by T nodes to receive them in that communication domain.

[0173] A T-link in a communication domain is defined as a resource used by T nodes to transmit physical layer signals and physical layer information and by G nodes to receive physical layer information in that communication domain.

[0174] Frequency domain resource allocation:

[0175] Figure 4 For an illustrative carrier diagram, please refer to... Figure 4The frequency domain resources of a wireless short-range communication system include one or more carrier transmissions. The channel bandwidth (also known as frequency bandwidth) of each carrier is 20MHz, and the basic sampling frequency is 30.720MHz. The signal on each carrier corresponds to a 256-point FFT (Fast Fourier Transform).

[0176] Still refer to Figure 4 Each carrier consists of 157 consecutive subcarriers (Resource Elements, REs), with the 157 subcarriers occupying a bandwidth of 18.84MHz (which can also be understood as the system transmission bandwidth). The subcarrier spacing (also known as the subcarrier width, i.e., the width between the center frequencies of two adjacent subcarriers) Δf is 120kHz.

[0177] For example, the 157 subcarriers are ordered sequentially from low to high frequency and numbered #0, #1, ..., #156. Among them, subcarrier #78 (which can also be understood as the 79th) is a direct current (DC) subcarrier. The other 156 subcarriers are called active subcarriers.

[0178] Figure 5 For an illustrative example of frequency domain resource allocation, please refer to... Figure 5 In a short-range wireless communication system, a 20MHz carrier wave contains 157 subcarriers (numbered #0 to #156 from low to high frequency; see description for details). Figure 4 (Related content). Starting from subcarrier #0, in ascending frequency order (which can also be understood as numbering from smallest to largest), 12 consecutive effective subcarriers (the concept can be found in [reference]). Figure 4 These constitute a resource element group (REG), also known as a subcarrier group. That is, a 20MHz bandwidth of a carrier in a wireless communication system contains 13 REGs.

[0179] Still refer to Figure 5 For example, the 13 REGs are ordered sequentially from low to high frequency and numbered #0, #1, ..., #12. Among them, subcarrier resource group #6 (i.e., the 7th subcarrier resource group) contains 12 active subcarriers and DC subcarriers, and the other subcarrier groups each contain 12 active subcarriers.

[0180] The subcarriers within each REG are numbered sequentially from low to high frequency as #0, #1, ..., #11. The subcarriers in subcarrier resource group #6 (i.e., the 7th subcarrier resource group) are numbered sequentially as #0, #1, ..., #12. Subcarrier #6 in subcarrier resource group #6 is a DC subcarrier.

[0181] In this embodiment, the scheduling resources of each T node (i.e., terminal node) are scheduled according to REG granularity, occupying continuous or non-contiguous REG frequency domain resources. This can also be understood as the user data (also referred to as user data information) in this embodiment being scheduled according to REG granularity. That is, each user's data information can be carried in one or more REGs on the frequency domain resources (multiple REGs can be continuous or non-contiguous).

[0182] Time-domain resource allocation:

[0183] Based on the GF, MF, and TF configuration structure within the superframe, and defining the time slot allocation at the wireless frame time granularity, the wireless short-range communication system supports 11 allocation ratios, numbered #0 to #10, as shown in Table 1:

[0184] Table 1

[0185]

[0186] In the wireless short-range communication system of this application, the frame structure in the system is divided into three categories according to the superframe GF, MF, TF configuration structure and applicable scenarios: Class A frames, Class B frames, and Class C frames.

[0187] Figure 6 This example illustrates the correspondence between frame structure and time slot allocation. Please refer to... Figure 6 Class A frames support configuration numbers #0 to #6 (configuration details can be found in Table 1). A 1ms superframe contains one MF frame, with unified scheduling within the 1ms superframe, meaning the transmission time interval (TTI) is 1ms, supporting 1ms-level transmission latency applications. Class B frames support configuration numbers #7 to #9 (configuration details can be found in Table 1). A 1ms superframe contains two 0.5ms half-superframes, meaning each 0.5ms superframe contains one HSF frame. The two HSF frames are independently scheduled, meaning the TTI = 0.5ms, supporting 0.5ms-level transmission latency applications. Class C frames support configuration number #10 (configuration details can be found in Table 1). A 1ms superframe contains eight MF radio frames (125us), each radio frame is independently scheduled, meaning the TTI = 125us, supporting 125us-level transmission latency applications.

[0188] In Class A, Class B, and Class C frames, the smallest granularity of time-domain resource partitioning is the radio frame. That is, in this embodiment, the smallest scheduling granularity of the short-range wireless communication system in the time domain is the radio frame. For example, in Class A and Class B frames, the time-domain symbols scheduled by node T (which can also be understood as the time-domain symbols that node T can schedule) are all available data symbol resources within one or more radio frames scheduled by node T. In Class C frames, the time-domain symbols scheduled by node T are all available data symbol resources within a scheduled radio frame.

[0189] It should be noted that the frequency domain REG, time domain resources, and other partitioning methods defined in the embodiments of this application are only applicable to the transmission of data information (also known as physical layer data information or user data information) and demodulation reference signals.

[0190] Based on the time-domain / frequency-domain resource allocation methods and other technologies described above, the physical layer transmission scheme in the embodiments of this application will be described in detail below.

[0191] In the wireless short-range communication system of this application embodiment, each communication domain corresponds to a physical layer resource with a bandwidth of 20MHz. When the system is configured with multiple communication domains or carriers, each communication domain or carrier is processed independently by the physical layer. Therefore, the physical layer transmission-related content involved in this application embodiment mainly concerns the physical layer processing flow within a 20MHz bandwidth.

[0192] For example, the physical layer transmission links in a wireless short-range communication system include G-links and T-links. A G-link is defined as a resource used for physical layer information and signals transmitted by G nodes and received by T nodes in the communication domain. A T-link is defined as a resource used for physical layer information and signals transmitted by T nodes and received by G nodes in the communication domain.

[0193] I. G-link transmission

[0194] For example, G-link physical layer information is applied to physical resources that carry information sent down from the higher layers of the G node. G-link physical layer information includes, but is not limited to: G-link data information (G-link Share Channel, GLSCH), broadcast information (BCH), control information, resource overhead indication information (CR-IND), and G-link control information (GCI).

[0195] For example, the physical layer signals of the G link correspond to the signals used for physical layer information transmission, including but not limited to at least one of the following: synchronization signal, broadcast channel phase adjustment signal (BCH PAS), control resource indication phase adjustment signal (CR-IND PA), G link control information phase adjustment signal (GCI PAS), G link demodulation reference signal (GLDMRS), G link share channel phase adjustment signal (GLSCH PAS), channel state information reference signal (CSI-RS), and power adjustment protection signal (PAPS).

[0196] (1) G-link data information transmission.

[0197] When the system occupies multiple 20MHz carriers (communication domains), the G node independently transmits data information (also known as user data information or G-link data information) on each carrier (communication domain). When the system occupies multiple 20MHz carriers (communication domains), the T node independently transmits data information (also known as user data or T-link data information) on each carrier.

[0198] G-link data information carries MAC PDU data transmissions issued by the MAC layer. When the system occupies multiple 20MHz carriers (communication domains), the G node independently transmits data information on each carrier (communication domain).

[0199] When a T node receives G-link data, it uses the G-link data demodulation reference signal and the G-link data phase adjustment signal to perform channel information estimation and channel information phase change compensation, respectively, before demodulating the G-link data.

[0200] In terms of time-domain resources, the scheduling period for Class A frames is at the superframe granularity, and each superframe within the scheduling period uses the same time-frequency, resource, and modulation-coding scheme. The scheduling period for Class B frames is at the half-superframe granularity, and each half-superframe within the scheduling period uses the same time-frequency, resource, and modulation-coding scheme. The scheduling period for Class C frames is at the radio frame granularity, and each radio frame within the scheduling period uses the same time-frequency, resource, and modulation-coding scheme.

[0201] In terms of frequency domain resources, the scheduling granularity of G-link data information is at the subcarrier group (REG) level. The occupied subcarrier groups can be continuous or non-contiguous, and can be indicated through G-link Control Information (GCI) and higher-layer signaling. The smallest granularity of G-link data information in the frequency domain is the REG, and the GCI information indicates one or more independent REGs that a user can schedule. That is, when a G node sends GCI information to a T node, the GCI information can be used to indicate one or more independent REGs that the T node can schedule. These one or more REGs that the T node can schedule can be on either the G-link or the T-link.

[0202] Each T-node maps its G-link data information on each transmit link to the scheduled time-frequency resources. The mapping method for time-frequency resources is similar to that for G-link data information, and will not be elaborated here.

[0203] (2) G-link data information demodulation reference signal transmission.

[0204] The demodulation reference signal corresponding to G-link data transmission is called the G-link data demodulation reference signal (GLDMRS), which is transmitted using G-link data symbol resources. A G node in the communication domain transmits the G-link data demodulation reference signal within that domain, which is used by other nodes to estimate the transmission channel characteristics of the G-link data transmitted by that G node at the same antenna port.

[0205] For example, a G node transmits a demodulated G link data information signal on the G link. A T node receives the demodulated G link data information signal on the G link. Specifically, when the T node receives the G link data information, it uses a demodulated G link data information reference signal and performs channel information estimation based on the demodulated G link data information reference signal. Based on the channel estimation result, the T node demodulates the G link data information.

[0206] 1. Time-domain resource mapping

[0207] In this application embodiment, the transmission mode (also known as the resource mapping mode) of the G-link data information demodulation reference signal supports the following:

[0208] 1. Each superframe is configured with a 1G link data information demodulation reference signal.

[0209] 2. Each half-superframe is configured with a 1G link data information demodulation reference signal.

[0210] 3. Each radio frame used to transmit G-link data information is configured with one G-link data information demodulation reference signal. Here, the radio frame used to transmit G-link data information can be understood as a GF frame within a superframe or semi-superframe used to transmit G-link data information, including GF frames and MF frames. For example,... Figure 3 For example, this superframe includes multiple GF frames. All symbols in the first GF frame may be used to carry control information, while one or more symbols in the second GF frame and the first MF frame carry G-link data information. In this example, the first GF frame is a radio frame that does not transmit G-link data information, while the second GF frame and the first MF frame are radio frames used to transmit G-link data information.

[0211] Specifically, the G-link data demodulation reference signal supports two configuration formats: Format 0 and Format 1. Format 0 supports a lower time-domain density for the G-link data demodulation reference signal configuration. Format 1 supports a higher time-domain density for the G-link data demodulation reference signal configuration, to meet different channel estimation accuracy and overhead resource requirements, respectively. Lower time-domain density can be understood as a lower transmission density of the G-link data demodulation reference signal, for example, one G-link data demodulation reference signal per superframe. Higher time-domain density can be understood as a higher transmission density of the G-link data demodulation reference signal, for example, one T-link data demodulation reference signal per radio frame. Thus, the lower-density G-link data demodulation reference signal configuration reduces channel overhead, while the higher-density configuration improves channel tracking functionality. For example, in slowly changing channel conditions (i.e., when the channel environment changes slowly), a lower-density G-link data demodulation reference signal configuration can be used. When the channel changes rapidly (i.e., the channel environment changes quickly), a high-density G-link data information demodulation reference signal configuration can be adopted to enable the T-node to update the channel estimation results in a timely manner, thereby improving the accuracy of G-link data information reception.

[0212] For example, during the communication domain system message and T-node access process, the information exchange between the G-node and the T-node uses the default configuration format. In this embodiment, the default configuration format is Format1. For example, after the T-node accesses the network, the G-node can change the configuration format via higher-layer signaling. Specifically, the G-node sends higher-layer signaling to the T-node, which indicates either Format0 or Format1 configuration format. For example, the higher-layer signaling is: XRCReconfiguration->dmrsFormatIndication.

[0213] In terms of time-domain resources, the demodulated G-link data signal occupies the first symbol of the transmitted G-link data (also referred to as G-link data resource). The time-domain resource mapping of the demodulated G-link data signal supports two configuration formats: Format0 and Format1. In the embodiments of this application, based on different configuration formats and different frame structures, the first symbol mentioned above can be the first symbol used for transmitting G-link data in a superframe, the first symbol used for transmitting G-link data in a half-superframe, or the first symbol used for transmitting G-link data in a radio frame used for transmitting G-link data.

[0214] In this embodiment of the application, as described above, the frame structure is divided into Class A frames, Class B frames, and Class C frames. In different frame structures, the configurations of Format0 and Format1 are as follows:

[0215] Class A frames:

[0216] For example, Class A frames support two configuration formats: Format0 and Format1.

[0217] (1)Format0

[0218] Figure 7 For an exemplary illustration of the time-domain location of the demodulation reference signal for G-link data information in a Class A frame, please refer to... Figure 7 When the frame structure is a Class A frame, the Format0 configuration format is used to indicate that a 1G link data demodulation reference signal is configured in each superframe.

[0219] Figure 8 For an illustrative example, please refer to the schematic diagram of the time-domain location of the demodulation reference signal for Class A frame G link data information. Figure 8 Specifically, within each superframe (1 ms in length), the demodulation reference signal for G-link data information is mapped to the first data symbol within that superframe. Within a superframe, the first data symbol of the G-link is the first symbol used to transmit G-link data information (the first symbol).

[0220] For example, a data symbol is the symbol remaining after removing control symbols (also called control symbols) within a superframe, and its position can be understood as immediately following the control symbols. The control symbols carry control information (or can be called control class information). Control class information within a superframe on a G link includes, but is not limited to, at least one of the following: synchronization sequence, broadcast information, CR-IND information, GCI information, PAPS signal, etc.

[0221] This can be understood as follows: the Format0 configuration of Class A frames is configured as follows: within each superframe (1ms in length), the radio frames scheduled by the G node for transmitting G link data information (including MF radio frames) are arranged according to the radio frame number (or sequence number; the numbering method can be found in [reference]). Figure 2 or Figure 6 (The relevant descriptions will not be repeated here.) Sort by size from smallest to largest, and remove control-type information (including at least one of synchronization sequences, broadcast information, CR-IND information, GCI information, and PAPS signals) overhead resources (which can also be understood as occupied symbols). The first symbol used to transmit G-link data information maps to the G-link data information demodulation reference signal, such as... Figure 8 As shown.

[0222] Optionally, Figure 8 This paper only uses the example of control symbols occupying a portion of the symbols in the first radio frame within a superframe for illustration. In some examples, control symbols may occupy more symbols in a frame or more consecutive radio frames, which is not limited in this application.

[0223] (2)Format1

[0224] Still refer to Figure 7 The frame structure is a Class A frame. The Format1 configuration format is used to indicate that one G-link data information demodulation reference signal is configured in each radio frame used to transmit G-link data information within each superframe.

[0225] Figure 9 This is an exemplary schematic diagram of the time-domain location of the demodulation reference signal for Class A frame G link data information, wherein... Figure 9 The diagram only shows the time-domain location of the demodulation reference signal for the G data information (abbreviated as DMRS). Please refer to... Figure 9 Specifically, within each superframe (1ms in length), in each radio frame used to transmit G-link data information (e.g., Figure 9In the superframe, radio frames #1, #7, etc., are radio frames used to transmit T-link data information. The G-link data demodulation reference signal is mapped to the first symbol used to transmit G-link data information. This symbol used to transmit G-link data information can also be called a data symbol. That is, the G-link data demodulation reference signal occupies the first data symbol used to transmit G-link data information within each superframe. Within a radio frame, the first data symbol of the G-link is the first symbol used to transmit G-link data information (the first symbol).

[0226] For example, a data symbol is the symbol remaining after removing control symbols (also called control symbols) within a superframe, and its position can be understood as immediately following the control symbols. The control symbols carry control information (or can be called control class information). Control class information within a superframe on a G link includes, but is not limited to, at least one of the following: synchronization sequence, broadcast information, CR-IND information, GCI information, PAPS signal, etc.

[0227] This can be understood as follows: the Format1 configuration of a Class A frame is configured as follows: within each superframe (1ms in length), in each radio frame (including MF radio frames) scheduled by the G node for transmitting G link data information, after removing (or excluding) control class information (including at least one of synchronization sequence, broadcast information, CR-IND information, GCI information, and PAPS signals) overhead resources (which can also be understood as occupied symbols), the first symbol used for transmitting G link data information is mapped to the G link data information demodulation reference signal. For example... Figure 9 As shown, the first radio frame within a superframe used for transmitting G-link data contains at least one control symbol, carrying control information such as synchronization sequences, broadcast information, CR-IND information, GCI information, and PAPS signals. The first data symbol of this radio frame is the first symbol after removing the control symbols; this symbol carries the G-link demodulation reference signal. Data symbols following the G-link demodulation reference signal can carry G-link data information. The second radio frame within a superframe used for transmitting G-link data information (e.g., numbered #1) does not contain control information; therefore, the first data symbol in this radio frame is the first symbol of the radio frame. Alternatively, it can be understood that the first data symbol after removing the control information is the first symbol of the radio frame. This symbol (i.e., the data symbol) carries the G-link data demodulation reference signal.

[0228] Optionally, if a radio frame contains no symbolic resources after removing the synchronization sequence, broadcast information, CR-IND information, GCI information, and PAPS signal overhead resources, then that radio frame does not map the G-link data demodulation reference signal. For example, if all symbols of the first radio frame used for transmitting G-link data information and some symbols of the second radio frame used for transmitting G-link data information are control symbols carrying control information, in this example, the first radio frame contains no symbolic resources after removing the synchronization sequence, broadcast information, CR-IND information, GCI information, and PAPS signal overhead resources, so this radio frame does not map the G-link data demodulation reference signal. The first symbol in the second radio frame used for transmitting G-link data information, after removing the synchronization sequence, broadcast information, CR-IND information, GCI information, and PAPS signal overhead resources, maps the G-link data demodulation reference signal.

[0229] Optionally, Figure 9 This paper only uses the example of control symbols occupying a portion of the symbols in the first radio frame within a superframe for illustration. In some examples, control symbols may occupy more symbols in a frame or more consecutive radio frames, which is not limited in this application.

[0230] Class B frames:

[0231] For example, Class B frames support two configuration formats: Format0 and Format1. (1) Format0

[0232] Figure 10 For an exemplary illustration of the time-domain location of the demodulation reference signal for Class B frame G link data information, please refer to... Figure 10 The frame structure is a Class B frame. The Format0 configuration format is used to indicate that one G link data information demodulation reference signal is configured in each half-superframe within each superframe.

[0233] Figure 11 For an exemplary illustration of the time-domain location of the demodulation reference signal for Class B frame G link data information, please refer to... Figure 11 Specifically, within each half-superframe (0.5ms) of each superframe (1ms in length), the G-link data demodulation reference signal is mapped to the first data symbol in that half-superframe. Within a half-superframe, the first data symbol of the G-link can optionally be the first symbol used to transmit G-link data information.

[0234] For example, the data symbol is the symbol remaining after removing control symbols (also called control symbols) within the half-superframe, and its position can be understood as immediately following the control symbols. The control symbols carry control information (or can be called control class information). The control class information within the half-superframe on the G link includes, but is not limited to, at least one of the following: synchronization sequence, broadcast information, CR-IND information, GCI information, PAPS signal, etc.

[0235] This can be understood as follows: the Format0 configuration of a Class B frame is configured as follows: within each half-superframe (0.5ms in length) of a 1ms superframe, the radio frames scheduled by the G node for transmitting G link data information (including MF radio frames) are configured according to the radio frame number (or sequence number; the numbering method can be found in [reference]). Figure 2 or Figure 6 (The relevant descriptions will not be repeated here.) Sort by size from smallest to largest, and remove control-type information (including at least one of synchronization sequences, broadcast information, CR-IND information, GCI information, and PAPS signals) overhead resources (which can also be understood as occupied symbols). The first symbol used to transmit G-link data information maps to the G-link data information demodulation reference signal, such as... Figure 8 As shown.

[0236] (2)Format1

[0237] Still refer to Figure 10 The frame structure is a Class B frame. The Format1 configuration format is used to indicate that a G-link data information demodulation reference signal is configured in each radio frame used to transmit G-link data information in each half-superframe within each superframe.

[0238] Figure 12 This is an exemplary schematic diagram of the time-domain location of the demodulation reference signal for Class A frame G link data information, wherein... Figure 12 The diagram only illustrates the time-domain location of the G-link data demodulation reference signal (DMRS) within each half-superframe. Specifically, in each radio frame used for transmitting G-link data information within each half-superframe of each superframe, the G-link data demodulation reference signal is mapped to the first symbol used for transmitting G-link data information. This symbol can also be called a data symbol. In other words, the G-link data demodulation reference signal occupies the first data symbol used for transmitting G-link data information within each half-superframe. Within a radio frame, the first data symbol of the G-link can optionally be the first symbol used for transmitting G-link data information (the first symbol).

[0239] For example, the data symbol is the symbol remaining after removing control symbols (also called control symbols) within the half-superframe, and its position can be understood as immediately following the control symbols. The control symbols carry control information (or can be called control class information). The control class information within the half-superframe on the G link includes, but is not limited to, at least one of the following: synchronization sequence, broadcast information, CR-IND information, GCI information, PAPS signal, etc.

[0240] This can be understood as follows: the Format1 configuration of a Class B frame is configured as follows: within each superframe (1ms in length) and each half-superframe (0.5ms in length), the first symbol used for transmitting G-link data information in each radio frame (including MF radio frames) scheduled by the G node for transmitting G-link data information, after removing (or excluding) control class information (including at least one of synchronization sequence, broadcast information, CR-IND information, GCI information, and PAPS signals) overhead resources (which can also be understood as occupied symbols), maps the G-link data information demodulation reference signal. For example... Figure 9 As shown, the first symbol in the first radio frame used for transmitting G-link data within each half-superframe is a control symbol, carrying control information such as synchronization sequences, broadcast information, CR-IND information, GCI information, and PAPS signals. The first data symbol of this radio frame is the first symbol after removing the control symbols; this symbol carries the G-link demodulation reference signal. Data symbols following the G-link demodulation reference signal can carry G-link data information, etc. The second radio frame used for transmitting G-link data information within the half-superframe (e.g., numbered #1) does not contain control information; therefore, the first data symbol in this radio frame is the first symbol of the radio frame. This can also be understood as the first data symbol after removing the control information being the first symbol of the radio frame. This symbol (i.e., the data symbol) is used to carry the G-link data demodulation reference signal.

[0241] Optionally, if a radio frame contains no symbolic resources after removing the synchronization sequence, broadcast information, CR-IND information, GCI information, and PAPS signal overhead resources, then that radio frame does not map the G-link data demodulation reference signal. For example, if all symbols of the first radio frame used for transmitting G-link data information and some symbols of the second radio frame used for transmitting G-link data information within a semi-superframe are control symbols carrying control information, then in this example, the first radio frame contains no symbolic resources after removing the synchronization sequence, broadcast information, CR-IND information, GCI information, and PAPS signal overhead resources, and therefore does not map the G-link data demodulation reference signal. The first symbol in the second radio frame used for transmitting G-link data information, after removing the synchronization sequence, broadcast information, CR-IND information, GCI information, and PAPS signal overhead resources, maps the G-link data demodulation reference signal.

[0242] Class C frames:

[0243] For example, Class C frames support the Format1 configuration format. Optionally, Class C frames only support the Format1 configuration format by default; if the indication is Format0, the T node will still be scheduled according to the Format1 configuration format.

[0244] Figure 13 For an exemplary illustration of the time-domain location of the demodulation reference signal for Class C frame G link data information, please refer to... Figure 13 The frame structure is a Class C frame. The Format1 configuration format is used to indicate that each radio frame used to transmit G-link data information is configured with a G-link data information demodulation reference signal.

[0245] Figure 14 For an exemplary illustration of the time-domain location of the demodulation reference signal for Class C frame G link data information, please refer to... Figure 14 Specifically, within each superframe (1 ms in length), in each radio frame used for transmitting G-link data information, the G-link data demodulation reference signal is mapped to the first symbol used for transmitting G-link data information. This symbol used for transmitting G-link data information can also be called a data symbol. In other words, the G-link data demodulation reference signal occupies the first data symbol used for transmitting G-link data information within each superframe. Within a radio frame, the first data symbol of the G-link is the first symbol used for transmitting G-link data information.

[0246] For example, a data symbol is the symbol remaining after removing control class symbols (also called control symbols) within each radio frame, and its position can be understood as immediately following the control symbols. The control class symbols carry control information (or control class information), and the control class information within a radio frame on a G link includes, but is not limited to, at least one of the following: synchronization sequence, broadcast information, CR-IND information, GCI information, PAPS signal, etc.

[0247] This can be understood as follows: the Format1 configuration of a Class C frame is configured as follows: within each superframe (1ms in length), the first symbol used for transmitting G-link data information in each radio frame used for transmitting G-link data information, after removing (or excluding) overhead resources (which can also be understood as occupied symbols) of control class information (including synchronization sequence, broadcast information, CR-IND information, GCI information, and PAPS signals), maps the G-link data information demodulation reference signal. For example, ... Figure 14 As shown, the first radio frame within a superframe used for transmitting G-link data contains at least one control symbol, carrying control information such as synchronization sequences, broadcast information, CR-IND information, GCI information, and PAPS signals. The first data symbol of this radio frame is the first symbol after removing the control symbols; this symbol carries the G-link demodulation reference signal. Data symbols following the G-link demodulation reference signal can carry G-link data information, etc. Similarly, the first symbol in the second radio frame within a superframe used for transmitting G-link data information (e.g., numbered #1) contains at least one control symbol, carrying control information such as synchronization sequences, broadcast information, CR-IND information, GCI information, and PAPS signals. The first data symbol of this radio frame is the first symbol after removing the control symbols; this symbol carries the G-link demodulation reference signal.

[0248] Optionally, each radio frame in a Class C frame independently uses its own G-link data information demodulation reference signal. That is, the T node can demodulate the G-link data information within each radio frame based on the G-link data information demodulation reference signal within that radio frame. For example, referring to... Figure 12 The T node can demodulate the reference signal based on the G link data information configured in radio frame #1, perform channel estimation on the G link of radio frame #1, and demodulate the G link data information (i.e., the data carried by the G link data symbols) in radio frame #1 based on the channel estimation results.

[0249] 2. Frequency Domain Resource Mapping

[0250] The demodulation reference signal of the G link data information of each T node on each transmit link is mapped on the scheduled REG resources, except for the DC subcarrier and the phase adjustment signal subcarrier.

[0251] 3. Airspace resource mapping

[0252] The mapping between the G-link data demodulation reference signal and the antenna ports supports 1 to 4 antenna ports. Specifically, the G-link data demodulation reference signal supports transmission via a single antenna port {200}, two antenna ports {200, 201}, three antenna ports {200, 201, 202}, and four antenna ports {200, 201, 202, 203}. The mapping method (or mapping rule) for frequency domain resources with different numbers of ports is as follows:

[0253] Single antenna port:

[0254] Figure 15 For an illustrative example of a single antenna port mapping diagram, please refer to... Figure 15 When the number of antenna ports is 1, each effective subcarrier maps to the demodulation reference signal of the G-link data information of one antenna port, and the DC subcarrier does not map to the demodulation reference signal of the G-link data information.

[0255] in, Figure 15 The symbols shown are for demodulation reference signals used to transmit G-link data information.

[0256] Two antenna ports:

[0257] Figure 16 For an illustrative example of a single antenna port mapping diagram, please refer to... Figure 16 With two antenna ports, every two consecutive effective subcarriers form a group. The demodulation reference signal for the G-link data information at antenna port 0 is mapped to the first effective subcarrier, and the demodulation reference signal for the G-link data information at antenna port 1 is mapped to the second effective subcarrier. The DC subcarrier is not mapped to the G-link data demodulation reference signal. Specifically, every two consecutive effective subcarriers form a group, and the subcarrier is mapped using two comb teeth according to its sequence number. The complex value of the demodulation reference signal for the G-link data information at antenna port 0 is mapped to the subcarrier with the smaller (or even) number, and the complex value of the demodulation reference signal for the G-link data information at antenna port 1 is mapped to the subcarrier with the larger (or odd) number. The DC subcarrier is not mapped to the reference signal.

[0258] Three antenna ports:

[0259] Figure 17 For an illustrative example of a single antenna port mapping diagram, please refer to... Figure 17With three antenna ports, every three consecutive effective subcarriers form a group. The demodulation reference signal for the G-link data information at antenna port 0 is mapped to the first effective subcarrier, the demodulation reference signal for the G-link data information at antenna port 1 is mapped to the second effective subcarrier, and the demodulation reference signal for the G-link data information at antenna port 2 is mapped to the third effective subcarrier. The DC subcarrier is not mapped to the G-link data demodulation reference signal. Specifically, every three consecutive effective subcarriers form a group, and according to the subcarrier sequence number, the complex value of the demodulation reference signal for the G-link data information at antenna port 0 is mapped to the subcarrier with the smallest number, the complex value of the demodulation reference signal for the G-link data information at antenna port 1 is mapped to the subcarrier with the second smallest number, and the complex value of the demodulation reference signal for the G-link data information at antenna port 2 is mapped to the subcarrier with the largest number. The DC subcarrier is not mapped to the reference signal.

[0260] Four antenna ports:

[0261] Figure 18 For an illustrative example of a single antenna port mapping diagram, please refer to... Figure 18 With four antenna ports, every two consecutive effective subcarriers form a group. The demodulation reference signal for the G-link data information from antenna ports 0 and 1 is mapped to the first effective subcarrier, and the demodulation reference signal for the G-link data information from antenna ports 2 and 3 is mapped to the second effective subcarrier. DC subcarriers are not mapped to the G-link data demodulation reference signal. Specifically, every two consecutive effective subcarriers are grouped, and the complex values ​​of the demodulation reference signals for the G-link data information from antenna ports 0 and 1 are mapped to the subcarrier with the smaller (or even) number, and then multiplexed using code division. The complex values ​​of the demodulation reference signals for the G-link data information from antenna ports 2 and 3 are mapped to the subcarrier with the larger (or odd) number, and then multiplexed using code division. DC subcarriers are not mapped to the reference signal.

[0262] II. T-link transmission

[0263] (1) T-link data information transmission

[0264] For example, the T-link physical layer information is applied to physical resources carrying information sent down from the higher layers of the T node. The T-link physical layer information is defined as follows:

[0265] T-Link Data Information: T-Link Shared Channel, TLSCH

[0266] T-Link Control Information (TCI)

[0267] T-Link Random Access Channel (TLRACH)

[0268] In a short-range wireless communication system, a G node transmits G-link data information and G-link data demodulation reference signals on a G-link, and receives T-link data information and T-link data demodulation reference signals on a T-link. Correspondingly, a T node receives T-link data information and G-link data demodulation reference signals on a G-link, and transmits T-link data information and G-link data demodulation reference signals on a T-link.

[0269] When the G node receives T-link data information, it receives and uses the T-link data information demodulation reference signal (TLDMRS) and T-link data information phase adjustment signal (TLPAS) sent by the T node to perform channel information estimation and channel information phase change compensation, respectively, and then demodulates the T-link data information.

[0270] For example, the T-link physical layer signal corresponds to the signal used for physical layer information transmission, including but not limited to at least one of the following: T-link Demodulation Reference Signal (TLDMRS), ACK Demodulation Reference Signal (ACK DMRS), ACK Phase Adjustment Signal (ACK PAS), T-link Shared Channel Phase Adjustment Signal (TLSCH PAS), and Sounding Reference Signal (SRS).

[0271] When the system occupies multiple 20MHz carriers (communication domains), node T independently transmits data information on each carrier (communication domain).

[0272] When the G node receives T-link data, it uses the T-link data demodulation reference signal and the T-link data phase adjustment signal to estimate the channel information and compensate for the channel information phase change, respectively, before demodulating the T-link data.

[0273] On each transmission link, the T-node maps the T-link data information to the scheduled time-frequency resources. The mapping method of time-frequency resources is similar to that of G-link data information, and can be referred to the relevant description of G-link data information, which will not be repeated here.

[0274] (2) T-link data information demodulation reference signal transmission.

[0275] The demodulation reference signal corresponding to the T-link data information transmission is called the T-link data information demodulation reference signal, which is transmitted using the resources in the T-link data symbols.

[0276] Node T in the communication domain transmits a demodulation reference signal for T-link data information, which is used by other nodes to estimate the transmission channel characteristics of the T-link data information transmitted by Node T at the corresponding antenna port; the demodulation reference signal for T-link data information is processed in the same way as the demodulation reference signal for G-link data information.

[0277] 1. Time-domain resource mapping

[0278] Similar to the format of the G-link data demodulation reference signal, the T-link data demodulation reference signal supports the following configuration methods:

[0279] 1. Each superframe is configured with one T-link data information demodulation reference signal.

[0280] 2. Each half-superframe is configured with a 1T link data information demodulation reference signal.

[0281] 3. Each radio frame used for transmitting T-link data information is configured with one T-link data information demodulation reference signal.

[0282] Specifically, the T-link data demodulation reference signal supports two configuration formats: Format 0 and Format 1. Format 0 supports a lower time-domain density for the T-link data demodulation reference signal configuration. Format 1 supports a higher time-domain density for the T-link data demodulation reference signal configuration, to meet different channel estimation accuracy and overhead resource requirements, respectively. Lower time-domain density can be understood as a lower transmission density of the T-link data demodulation reference signal, for example, one T-link data demodulation reference signal per superframe. Higher time-domain density can be understood as a higher transmission density of the T-link data demodulation reference signal, for example, one T-link data demodulation reference signal per radio frame. Thus, the lower-density T-link data demodulation reference signal configuration reduces channel overhead, while the higher-density configuration improves channel tracking functionality. For example, in slowly changing channel conditions (i.e., when the channel environment changes slowly), a lower-density T-link data demodulation reference signal configuration can be used. When the channel changes rapidly (i.e., the channel environment changes quickly), a high-density T-link data information demodulation reference signal configuration method can be adopted to enable the T node to update the channel estimation results in a timely manner, thereby improving the accuracy of T-link data information reception.

[0283] For example, during the communication domain system message and T-node access process, the information exchange between the G-node and the T-node uses the default configuration format. In this embodiment, the default configuration format is Format1. For example, after the T-node accesses the network, the G-node can change the configuration format via higher-layer signaling. Specifically, the G-node sends higher-layer signaling to the T-node, which indicates either Format0 or Format1 configuration format. For example, the higher-layer signaling is: XRCReconfiguration->dmrsFormatIndication.

[0284] In terms of time-domain resources, the demodulated T-link data information signal occupies the first symbol of the transmitted T-link data information (also referred to as T-link data information resource). The time-domain resource mapping of the demodulated T-link data information signal supports two configuration formats: Format0 and Format1. In the embodiments of this application, based on different configuration formats and different frame structures, the first symbol mentioned above can be the first symbol used for transmitting T-link data information in a superframe, the first symbol used for transmitting T-link data information in a half-superframe, or the first symbol used for transmitting T-link data information in a radio frame used for transmitting T-link data.

[0285] In this embodiment of the application, as described above, the frame structure is divided into Class A frames, Class B frames, and Class C frames. In different frame structures, the configurations of Format0 and Format1 are as follows:

[0286] Class A frames:

[0287] For example, Class A frames support two configuration formats: Format0 and Format1.

[0288] (1)Format0

[0289] Figure 19 For an exemplary illustration of the time-domain location of the demodulation reference signal for T-link data information in a Class A frame, please refer to... Figure 19 When the frame structure is a Class A frame, the Format0 configuration format is used to indicate that one T-link data information demodulation reference signal is configured in each superframe.

[0290] Figure 20 For an illustrative example, please refer to the schematic diagram of the time-domain location of the demodulation reference signal for Class A frame T link data information. Figure 20Specifically, within each superframe (1 ms in length), the T-link data demodulation reference signal is mapped to the first data symbol within that superframe. Within a superframe, the first data symbol of the T-link is the first symbol used to transmit T-link data information (the first symbol). Optionally, the frame containing the first symbol used to transmit T-link data information within a superframe is an MF frame. Figure 20 The following description uses wireless frame #4 as an example of an MF frame. The specific location can be set based on the frame structure (including frame type and time slot ratio). This application does not limit this setting, and it will not be repeated below.

[0291] For example, a data symbol is the symbol remaining after removing control symbols (also called control symbols) within a superframe, and its position can be understood as immediately following the control symbols. The control symbols carry control information (or can be called control class information). The control class information within a superframe on a T-link includes, but is not limited to, at least one of the following: TCI information, Channel Sounding Signal (SRS), etc. The T-link control information types include resource request information and T-link ACK feedback information.

[0292] This can be understood as follows: the Format0 configuration of Class A frames is configured as follows: within each superframe (1ms in length), the radio frames scheduled by the T node for transmitting T link data information (including MF radio frames) are arranged according to the radio frame number (or sequence number; the numbering method can be found in [reference]). Figure 2 or Figure 6 (The relevant descriptions will not be repeated here.) Sort by size from smallest to largest, and remove control information (including at least one of TCI information and Channel Sounding Signal (SRS) overhead resources (which can also be understood as occupied symbols). The first symbol used to transmit T-link data information maps to the T-link data information demodulation reference signal, such as... Figure 20 As shown.

[0293] Optionally, Figure 20 This paper only uses the example of control symbols occupying a portion of the symbols in the first radio frame used to transmit T-link data information within a superframe. In some examples, control symbols may occupy more symbols in a frame or more consecutive radio frames. This application does not limit this, and it will not be repeated below.

[0294] (2)Format1

[0295] Still refer to Figure 19 The frame structure is a Class A frame. The Format1 configuration format is used to indicate that one T-link data information demodulation reference signal is configured in each radio frame used to transmit T-link data information within each superframe.

[0296] Figure 21This is an exemplary schematic diagram of the time-domain location of the demodulation reference signal for Class A frame T link data information, wherein... Figure 21 The diagram only shows the time-domain location of the demodulation reference signal for the T data information (abbreviated as DMRS). Please refer to... Figure 21 Specifically, in each radio frame used to transmit T-link data information within each superframe (1ms in length) (e.g. Figure 21 In the superframe, radio frames #4 to #7 (including MF frames), and radio frames #0 to #3 (which are radio frames used to transmit G-link data information), the T-link data demodulation reference signal is mapped to the first symbol used to transmit T-link data information. The symbol used to transmit T-link data information can also be called a data symbol. That is, the T-link data demodulation reference signal occupies the first data symbol used to transmit T-link data information within each superframe. Within a radio frame, the first data symbol of the T-link is the first symbol used to transmit T-link data information (the first symbol).

[0297] For example, the data symbol is the symbol after removing the control class symbol (also called the control symbol) within the superframe, and its position can be understood as immediately following the control symbol. Among them, the control class symbol carries control information (or can be called control class information), and the control class information within the superframe on the T link includes, but is not limited to, at least one of the following: TCI information, channel sounding signal (SRS), etc.

[0298] This can be understood as follows: the Format1 configuration of a Class A frame is configured as follows: within each superframe (1ms in length), in each radio frame (including MF radio frames) scheduled by the T node for transmitting T-link data information, after removing (or excluding) control class information (including at least one of TCI information and Channel Sounding Signal (SRS) overhead resources (which can also be understood as occupied symbols), the first symbol used for transmitting T-link data information is mapped to the T-link data information demodulation reference signal. For example... Figure 21 As shown, the first radio frame (e.g., an MF frame) within a superframe used for transmitting T-link data contains at least one control symbol, carrying control information such as TCI information and Channel Sounding Signal (SRS). The first data symbol of this radio frame is the first symbol after removing the control symbols; this symbol carries the T-link demodulation reference signal. Data symbols following the T-link demodulation reference signal can carry T-link data information, etc. The second radio frame (e.g., numbered #5) within a superframe does not contain control information; therefore, the first data symbol in this radio frame is the first symbol of the radio frame. Alternatively, it can be understood that the first data symbol after removing the control information is the first symbol of the radio frame. This symbol (i.e., the data symbol) carries the T-link data demodulation reference signal.

[0299] Optionally, if a radio frame has no symbolic resources after removing control information overhead resources, then that radio frame does not map the T-link data demodulation reference signal. For example, if all symbols of the first radio frame used to transmit T-link data information and some symbols of the second radio frame used to transmit T-link data information within a superframe are control-type symbols carrying control information, in this example, the first radio frame has no symbolic resources after removing control information overhead resources, so that radio frame does not map the T-link data demodulation reference signal. The first symbol after removing control information overhead resources in the second radio frame used to transmit T-link data information maps the T-link data demodulation reference signal.

[0300] Optionally, Figure 21 This paper only uses the example of control symbols occupying a portion of the symbols in the first radio frame transmitting T-link data information within a superframe. In some examples, control symbols may occupy more symbols in a frame or more consecutive radio frames, which is not limited in this application.

[0301] Class B frames:

[0302] For example, Class B frames support two configuration formats: Format0 and Format1.

[0303] (1)Format0

[0304] Figure 22 For an illustrative example of the time-domain location of the demodulation reference signal for Class B frame T-link data information, please refer to... Figure 22 The frame structure is a Class B frame. The Format0 configuration format is used to indicate that one T-link data information demodulation reference signal is configured in each half-superframe within each superframe.

[0305] Figure 23 This is an exemplary schematic diagram of the time-domain location of the demodulation reference signal for Class B frame T-link data information. Only one half-superframe (i.e., half-superframe #0) is shown in the configuration; the other half-superframe is configured in the same way. Please refer to... Figure 23 Specifically, within each half-superframe (0.5ms) of each superframe (1ms in length), the T-link data demodulation reference signal is mapped to the first data symbol within that half-superframe. Within a half-superframe, the first data symbol of the T-link can optionally be the first symbol used to transmit T-link data information.

[0306] For example, the data symbol is the symbol after removing the control class symbol (also called the control symbol) within the half-superframe, and its position can be understood as immediately following the control symbol. Among them, the control class symbol carries control information (or can be called control class information). The control class information within the half-superframe on the T link includes, but is not limited to, at least one of the following: TCI information, channel sounding signal (SRS), etc.

[0307] This can be understood as follows: the Format0 configuration of a Class B frame is configured as follows: within each half-superframe (0.5ms in length) of a 1ms superframe, the radio frames scheduled by the T node for transmitting T-link data information (including MF radio frames) are configured according to the radio frame number (or sequence number; the numbering method can be found in [reference]). Figure 2 or Figure 6 (The relevant descriptions will not be repeated here.) Sort by size from smallest to largest, and remove control information (including at least one of TCI information and Channel Sounding Signal (SRS) overhead resources (which can also be understood as occupied symbols). The first symbol used to transmit T-link data information maps to the T-link data information demodulation reference signal, such as... Figure 23 As shown.

[0308] (2)Format1

[0309] Still refer to Figure 22 The frame structure is a Class B frame. The Format1 configuration format is used to indicate that a T-link data information demodulation reference signal is configured in each radio frame used to transmit T-link data information in each half-superframe within each superframe.

[0310] Figure 24 This is an exemplary schematic diagram of the time-domain location of the demodulation reference signal for Class A frame T link data information, wherein... Figure 23 The diagram only illustrates the time-domain location (DMRS) of the T-link data demodulation reference signal within one half-superframe. Specifically, in each radio frame used for transmitting T-link data information within each half-superframe of each superframe, the T-link data demodulation reference signal is mapped to the first symbol used for transmitting T-link data information. This symbol used for transmitting T-link data information can also be called a data symbol. That is, the T-link data demodulation reference signal occupies the first data symbol used for transmitting T-link data information within each half-superframe. Within a radio frame, the first data symbol of the T-link can optionally be the first symbol used for transmitting T-link data information (the first symbol).

[0311] For example, the data symbol is the symbol after removing the control class symbol (also called the control symbol) within the half-superframe, and its position can be understood as immediately following the control symbol. Among them, the control class symbol carries control information (or can be called control class information). The control class information within the half-superframe on the T link includes, but is not limited to, at least one of the following: TCI information, channel sounding signal (SRS), etc.

[0312] This can be understood as follows: the Format1 configuration of a Class B frame is configured as follows: within each superframe (1ms in length) and each half-superframe (0.5ms in length), the first symbol used for transmitting T-link data information in each radio frame (including MF radio frames) scheduled by the T node for transmitting T-link data information, after removing (or excluding) control class information (including at least one of TCI information and Channel Sounding Signal (SRS) overhead resources (which can also be understood as occupied symbols), maps the T-link data information demodulation reference signal. For example... Figure 24 As shown, the first symbol in the first radio frame used to transmit T-link data within each half-superframe is a control symbol, carrying control information such as TCI information and Channel Sounding Signal (SRS). The first data symbol transmitting T-link data information in this radio frame is the first symbol after removing the T-link control symbols; this symbol carries the T-link demodulation reference signal. Data symbols following the T-link demodulation reference signal can carry T-link data information, etc. The second radio frame used to transmit T-link data information within the half-superframe (e.g., numbered #3) does not contain control information; therefore, the first data symbol in this radio frame is the first symbol of the radio frame. This can also be understood as the first data symbol after removing the control information being the first symbol of the radio frame. This symbol (i.e., the data symbol) is used to carry the T-link data demodulation reference signal.

[0313] Optionally, if a radio frame has no symbolic resources after removing TCI information and Channel Sounding Signal (SRS) overhead resources, then that radio frame does not map the T-link data demodulation reference signal. For example, if all symbols of the first radio frame used to transmit T-link data information and some symbols of the second radio frame used to transmit T-link data information within a semi-superframe are control symbols carrying control information, in this example, the first radio frame has no symbolic resources after removing TCI information and Channel Sounding Signal (SRS) overhead resources, so that radio frame does not map the T-link data demodulation reference signal. The first symbol after removing TCI information and Channel Sounding Signal (SRS) overhead resources in the second radio frame used to transmit T-link data information maps the T-link data demodulation reference signal.

[0314] Class C frames:

[0315] For example, Class C frames support the Format1 configuration format. Optionally, Class C frames only support the Format1 configuration format by default; if the indication is Format0, the T node will still be scheduled according to the Format1 configuration format.

[0316] Figure 25 For an illustrative example of the time-domain location of the demodulation reference signal for Class C frame T link data information, please refer to... Figure 25 The frame structure is a Class C frame. The Format1 configuration format is used to indicate that each radio frame used to transmit T-link data information is configured with a T-link data information demodulation reference signal.

[0317] Figure 26 This is an exemplary schematic diagram of the time-domain location of the demodulation reference signal for Class C frame T-link data information, where... Figure 26 This explanation uses radio frame #0 as an example; the same applies to other radio frames. Please refer to [link / reference]. Figure 26 Specifically, within each superframe (1 ms in length), in each radio frame used for transmitting T-link data information, the T-link data demodulation reference signal is mapped to the first symbol used for transmitting T-link data information. This symbol used for transmitting T-link data information can also be called a data symbol. In other words, the T-link data demodulation reference signal occupies the first data symbol used for transmitting T-link data information within each superframe. Within a radio frame, the first data symbol of the T-link is the first symbol used for transmitting T-link data information.

[0318] For example, a data symbol is the symbol remaining after removing control symbols (also called control symbols) within each radio frame, and its position can be understood as immediately following the control symbols. The control symbols carry control information (or can be called control class information), and the control class information within a radio frame on a T-link includes, but is not limited to, at least one of the following: TCI information, channel sounding signal (SRS), etc.

[0319] This can be understood as follows: the Format1 configuration of a Class C frame is configured as follows: within each superframe (1ms in length), the first symbol used to transmit T-link data information in each radio frame used for transmitting T-link data information is mapped to the T-link data information demodulation reference signal after removing (or excluding) the overhead resources (which can also be understood as occupied symbols) of control class information (including at least one of TCI information and channel sounding signal (SRS).

[0320] Optionally, each radio frame in a Class C frame independently uses its own T-link data information demodulation reference signal. That is, the G node can demodulate the T-link data information within each radio frame based on the T-link data information demodulation reference signal. For example, the G node can perform channel estimation on the T-link of radio frame #1 based on the T-link data information demodulation reference signal configured in radio frame #1, and demodulate the T-link data information (i.e., the data carried by the T-link data symbols) in radio frame #1 based on the channel estimation result.

[0321] 2. Frequency Domain Resource Mapping

[0322] The demodulation reference signal of the T-link data information is mapped on the REG resource scheduled at the T node.

[0323] 3. Airspace resource mapping

[0324] The spatial resource mapping method for the demodulation reference signal of T-link data information can be referred to the demodulation reference signal of G-link data information, and will not be elaborated here.

[0325] Figure 27 For an illustrative example of a communication method flowchart, please refer to... Figure 27 Specifically, including but not limited to the following steps:

[0326] S2701, the G node transmits G link data information and demodulation reference signals via superframes on the G link.

[0327] In this embodiment, the G-link can transmit a demodulation reference signal for G-link data information via a superframe. The configuration methods for transmitting the demodulation reference signal for G-link data information include, but are not limited to, at least one of the following:

[0328] 1) Each superframe is configured with a 1G link data demodulation reference signal. See description for details. Figure 7 and Figure 8 And related content, will not be elaborated here.

[0329] 2) One G-link data demodulation reference signal is configured in each radio frame used for transmitting G-link data information within each superframe. See the description for reference. Figure 9 , Figure 11 , Figure 12 as well as Figure 14 And related content, will not be elaborated here.

[0330] 3) One G-link data demodulation reference signal is configured in each half-superframe within each superframe. See description for details. Figure 10 and Figure 13 And related content, will not be elaborated here.

[0331] For example, when a T node receives G link data information, it uses the G link data information to demodulate a reference signal and performs channel information estimation based on the demodulated reference signal. Based on the channel estimation result, the T node demodulates the G link data information to obtain the G link data information.

[0332] S2702, the T node transmits T link data information and demodulates reference signals via superframes on the T link.

[0333] In this embodiment, the T node transmits a demodulation reference signal for the T link data information via a superframe on the T link. The configuration methods for transmitting the demodulation reference signal for the G link data information include, but are not limited to, at least one of the following:

[0334] 1) One T-link data demodulation reference signal is configured within each superframe. See description for details. Figure 19 and Figure 20 And related content, will not be elaborated here.

[0335] 2) One T-link data demodulation reference signal is configured in each radio frame used for transmitting T-link data information within each superframe. See the description for reference. Figure 19 , Figure 21 , Figure 22 as well as Figure 24 And related content, will not be elaborated here.

[0336] 3) One T-link data demodulation reference signal is configured in each half-superframe within each superframe. See description for details. Figure 22 and Figure 23 And related content, will not be elaborated here.

[0337] For example, when a G node receives T-link data information, it uses the T-link data information to demodulate a reference signal and performs channel information estimation based on the demodulated reference signal. Based on the channel estimation result, the G node demodulates the T-link data information to obtain the T-link data information.

[0338] Figure 28 A schematic block diagram of a communication device 2800 according to an embodiment of this application is shown. The communication device 2800 may include a processor 2801 and a transceiver / transceiver pin 2802, and optionally, a memory 2803. The processor 2801 can be used to execute the steps performed by the management node or terminal node in the methods of the foregoing embodiments, and control the receive pin to receive signals, and control the transmit pin to transmit signals.

[0339] The various components of the communication device 2800 are coupled together via a bus 2804, which includes a data bus, a power bus, a control bus, and a status signal bus. However, for clarity, all buses are labeled as bus system 2804 in the figure.

[0340] Optionally, the memory 2803 can be used for storage instructions in the foregoing method embodiments.

[0341] It should be understood that the communication device 2800 according to the embodiments of this application may correspond to the management node or terminal node in the methods of the foregoing embodiments, and the above and other management operations and / or functions of each element in the communication device 2800 are respectively for implementing the corresponding steps of the foregoing methods. For the sake of brevity, they will not be described in detail here.

[0342] All relevant content of each step involved in the above method embodiments can be referenced from the functional description of the corresponding functional module, and will not be repeated here.

[0343] Based on the same technical concept, embodiments of this application also provide a computer-readable storage medium storing a computer program. The computer program includes at least one piece of code that can be executed by a communication device to control the communication device.

[0344] Based on the same technical concept, this application also provides a computer program, which, when executed by a communication device, is used to implement the above-described method embodiments.

[0345] The program may be stored, in whole or in part, on a storage medium packaged with the processor, or in part or in whole on a memory not packaged with the processor.

[0346] Based on the same technical concept, this application also provides a processor for implementing the above-described method embodiments. The processor can be a chip.

[0347] In one possible implementation of this application embodiment, the communication device further includes a Bluetooth module for implementing Bluetooth signal transmission and / or a WiFi module for implementing WiFi signal transmission. One or more of the following modules—the StarScan module, the Bluetooth module, or the WiFi module—share at least one of the following: an RF unit, a modem unit, a MAC unit, and a CPU.

[0348] In one possible implementation, the star flash module and the WiFi module for WiFi signal transmission are located in different subsystems of the communication device. The subsystem of the star flash module and the subsystem of the WiFi module are integrated in the communication device with at least one of the following: Bluetooth system, SLE system, GNSS, always-on system, PMU, CMU, flash memory, application system, and audio system.

[0349] In one possible implementation, the StarScan module and the WiFi module for WiFi signal transmission are located in the same subsystem of the communication device. The subsystems of the StarScan module and the WiFi module are integrated into the communication device with at least one of the following: Bluetooth system, StarScan Low Power SLE system, GNSS, always-on system, PMU, CMU, flash memory, application system, and audio system.

[0350] In one possible implementation, the communication device further includes a Bluetooth module for transmitting Bluetooth signals and / or a WiFi module for transmitting WiFi signals. At least one of the Bluetooth module or WiFi module and the star-flash module coexist and communicate with each other through different antennas. The coexistence strategy includes at least one of the following: frequency division multiplexing, code division multiplexing, time division multiplexing, channel avoidance, or aggregation scheduling.

[0351] In one possible implementation, the communication device further includes a Bluetooth module for transmitting Bluetooth signals and / or a WiFi module for transmitting WiFi signals. At least one of the Bluetooth module or WiFi module coexists and communicates with the star-flash module through the same antenna. The coexistence strategy includes at least one of the following: frequency division multiplexing, code division multiplexing, time division multiplexing, software static strategy, or PTA strategy.

[0352] The solutions provided in this application are applicable to at least one of wireless communication methods, including Bluetooth (BT) communication, Sparklink (or Nearlink) communication, and Wi-Fi communication. In this application, BT and Bluetooth Low Energy (BLE) can refer to each other. Sparklink can include at least one of the following: Sparklink Low Energy (SLE), Sparklink Basic (SLB), or Sparklink Position (SLP). In this application, Sparklink can refer to Sparklink Low Energy (SLE), Sparklink Basic (SLB), or Sparklink Position (SLP).

[0353] The following describes some embodiments of the solution provided in this application.

[0354] Example 1:

[0355] Bluetooth (BT), Wi-Fi, and SparkLink (or NearLink) can all use the 2.4GHz or 5GHz frequency bands and have similarities. Some modules can be reused, thus saving chip cost, area, and power consumption. Chip resources can be highly reused, allowing for rapid iteration of multiple chips.

[0356] Wi-Fi and SLB can share a single radio frequency architecture and path. For example... Figure 29 The diagram shown is a schematic representation of a chip architecture provided in an embodiment of this application. Figure 29 It is known that through design, resource sharing among CPU, radio frequency (RF) unit, analog baseband (ABB) unit, or modem can be achieved, and some modules of the media access control (MAC) layer can be reused, thereby saving chip area and reducing chip cost and power consumption.

[0357] like Figure 30 The diagram shown is a schematic representation of another chip architecture provided in an embodiment of this application. Figure 30 It can be seen that the MAC units of BT, SLB and WiFi are implemented independently, while the RF units and Modem units of each mode are all shared.

[0358] like Figure 31 The diagram shown is a schematic representation of another chip architecture provided in an embodiment of this application. Figure 31 It can be seen that the MAC units of BT, SLB and WiFi are implemented independently, the Modems of BT, SLB and WiFi are also implemented independently, and the RF units of each mode are all shared.

[0359] like Figure 32 The diagram shown is a schematic representation of another chip architecture provided in an embodiment of this application. Figure 32 It can be seen that the MAC units of BT, SLB and WiFi are implemented independently. Some modes, such as WiFi and SLB, share the same modem, while other modes, such as BT, have their modems implemented independently. All modes share the same RF.

[0360] Example 2:

[0361] The Starspark chip can be manufactured using 14 / 28 / 40nm processes and employs chip-size package (CSP) and ball grid array.

[0362] Packages such as ball grid array (BGA) and quad flat no-lead (QFN) are used, employing either internal or external flash memory. Depending on the application scenario, at least one of the following subsystems can be placed on a single chip: power management unit (PMU), clock management unit (CMU), active optical network (AON), wireless local area network (WLAN), or BT, starflash, global navigation satellite system (GNSS), application (APP), and audio. This minimizes area, maximizes functionality, and improves performance and reliability.

[0363] This application provides a chip design approach where the stroboscopic subsystem is integrated with other subsystems onto a single chip. Depending on the product, the chip's subsystems can be tailored and combined, and the different subsystems are connected via a bus.

[0364] like Figure 33 The diagram shown is a schematic representation of a chip module framework provided in an embodiment of this application. Figure 33 It is understood that for products requiring BT or GNSS functional modules, and simultaneously needing to connect to WIFI and satellite flash devices, WIFI and SLB can be separated into different systems, and then combined with at least one of the following on a single chip: BT System, SLE System, GNSS System, Always On System, PMU, CMU, Flash memory, APP System, and Audio System. Different subsystems are connected via a bus.

[0365] like Figure 34 The diagram shown is a schematic representation of another chip module framework provided in an embodiment of this application. Figure 34 It is known that, in some embodiments, in order to save area and cost, WIFI and SLB can be combined into one subsystem, and then combined with at least one of BTSystem, SLE System, GNSS System, Always On System, PMU, CMU, Flash memory, APPSystem, Audio System, etc. on a single chip, with different subsystems connected to each other via a bus.

[0366] Example 3:

[0367] The WiFi / SLB 2.4GHz band operates in the 2412–2472MHz range, while the BT / BLE / SLE band operates in the 2402–2480MHz range, which may cause mutual interference. Within the same core, SLB and WiFi can allocate service time slots through software scheduling; however, there is a lack of unified scheduling for SLB and WiFi / BT / BLE / SLE on different cores.

[0368] This application provides a communication coexistence scheme for SLB / WIFI / SLE / BT / BLE. Based on whether SLB and WIFI / SLE / BT / BLE share an antenna, the coexistence scenario is divided into coexistence with different antennas (using different antennas) and coexistence with the same antenna (using the same antenna), and different coexistence strategies are given.

[0369] For the coexistence of different antennas, if SLB and Wi-Fi coexist, it can be ensured that the transmit and receive frequencies of SLB and Wi-Fi are different (i.e., frequency division multiplexing). The software can handle this from the aspects of code division multiplexing, service cycle, and interval (i.e., frequency division multiplexing). If SLB and SLE / BT / BLE coexist, and the isolation requirement cannot be met, it is necessary to avoid the channels where SLE / BT / BLE is located (i.e., channel avoidance) to reduce the impact of SLE / BT / BLE. At the same time, an aggregation scheduling mechanism can be added to aggregate and centrally send SLE / BT / BLE data packets (i.e., aggregation scheduling) to reduce the probability of interference from SLE / BT / BLE.

[0370] For shared antenna coexistence, software static strategies or hardware arbitration time-division strategies (such as packet traffic arbitration, PTA) can be used. Frequency division multiplexing, code division multiplexing, and time division multiplexing can also be employed. The advantages of software static strategies are: low hardware requirements, minimal software modifications, and no dynamic radio frequency (RF) switching (such as RF recovery). The advantages of PTA strategies are: faster service state switching and finer granularity of switching time. Packet traffic arbitration (PTA) can also be called data packet traffic arbitration.

[0371] Taking the coexistence of SLB and SLE / BT / BLE as an example, such as Figure 35 The diagram shown is a framework illustration of a software static strategy provided in an embodiment of this application. Figure 35As can be seen, the software static strategy can include: after SLB starts, the software configures the host to notify SLE / BT / BLE to exit the current RF path. In this scenario, SLE / BT / BLE can check the SLB startup flag, and the software can be configured to switch from the current RF path to another RF path. The chip needs to support software-configured switching.

[0372] Taking the coexistence of SLB and WIFI as an example, such as Figure 36 The diagram shown is a framework illustration of a software static strategy provided in an embodiment of this application. Figure 36 As can be seen, the software static strategy can include: after the SLB starts, the software configures the host to notify the Wi-Fi to exit the current RF path. In this scenario, the Wi-Fi can check the SLB startup flag, and the software can be configured to switch from the current RF path to another RF path. The chip needs to support software-configured switching.

[0373] For example, such as Figure 37 The diagram illustrates a framework for a Transmission Protocol Arbitration (PTA) strategy provided in this application. The PTA can use an arbitrator to determine whether one or more of the following—SLB / WIFI / SLE / BT / BLE—use the radio frequency (RF) and the RF occupancy status. For example, if an SLB needs to use the RF, it can request access from the arbitrator. The arbitrator can then decide whether the SLB is allowed to use the RF based on its access request, access policy, and actual occupancy status. The PTA architecture can be a two-line, three-line, or four-line architecture, etc., and can be designed and configured according to business requirements. Figure 37 As can be seen, the Transmission Arbitration (PTA) strategy includes time division of any combination of transmit (TX) and receive (RX) signals from each party in SLB / WIFI / SLE / BT / BLE. The PTA module can send the occupancy status of the radio frequency channel to each party separately, using different level signals to indicate that the radio frequency channel is occupied accordingly.

[0374] One or more of the following services—SLB / WIFI / SLE / BT / BLE—are occupied, and this level signal notifies the software or hardware to perform the corresponding processing. Different services can also be assigned different PTA priorities, with higher-priority services able to preempt air interface resources.

[0375] In this article, the term "and / or" is merely a description of the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone.

[0376] The terms "first" and "second," etc., used in the specification and claims of this application are used to distinguish different objects, not to describe a specific order of objects. For example, "first target object" and "second target object," etc., are used to distinguish different target objects, not to describe a specific order of target objects.

[0377] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0378] In the description of the embodiments in this application, unless otherwise stated, "multiple" means two or more. For example, multiple processing units means two or more processing units; multiple systems means two or more systems.

[0379] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A communication method, characterized in that, include: On the management G-link, a demodulation reference signal for G-link data information is transmitted via superframe; wherein the configuration method for transmitting the demodulation reference signal for G-link data information includes at least one of the following: One G-link data demodulation reference signal is configured within each superframe, one G-link data demodulation reference signal is configured in each radio frame used to transmit G-link data within each superframe, and one G-link data demodulation reference signal is configured in each half-superframe within each superframe.

2. The method according to claim 1, characterized in that, The method further includes: Send higher-layer signaling, which is used to indicate the configuration of Format0 or Format1 configuration format, wherein Format0 configuration format supports the configuration of demodulation reference signal for G-link data information with low time-domain density, and Format1 configuration format supports the configuration of demodulation reference signal for G-link data information with high time-domain density.

3. The method according to claim 2, characterized in that, The superframe has a frame structure of Class A frames, Class B frames, and Class C frames; wherein the scheduling period of Class A frames is at the superframe granularity, the scheduling period of Class B frames is at the half-superframe granularity, and the scheduling period of Class C frames is at the radio frame granularity.

4. The method according to claim 2, characterized in that, The frame structure is the Class A frame, the Format0 configuration format is used to indicate that one G-link data information demodulation reference signal is configured in each superframe, and the Format1 configuration format is used to indicate that one G-link data information demodulation reference signal is configured in each radio frame used to transmit G-link data information in each superframe.

5. The method according to claim 2, characterized in that, The frame structure is the Class B frame. The Format0 configuration format is used to indicate that one G-link data information demodulation reference signal is configured in each half-superframe. The Format1 configuration format is used to indicate that one G-link data information demodulation reference signal is configured in each radio frame used to transmit G-link data information in each half-superframe.

6. The method according to claim 2, characterized in that, The frame structure is the Class C frame, and the Format1 configuration format is used to indicate that each radio frame used to transmit G link data information is configured with one G link data information demodulation reference signal.

7. The method according to claim 4, characterized in that, The demodulation reference signal for the G-link data information occupies the first symbol of the G-link data information transmitted in each superframe.

8. The method according to claim 7, characterized in that, The first symbol in the superframe used to transmit G-link data information is the first symbol in the superframe after removing the synchronization sequence, broadcast information, control information resource overhead indication CR-IND information, G-link control information GCI information, and power adjustment protection signal PAPS signal overhead resources.

9. The method according to any one of claims 4 to 6, characterized in that, The G-link data demodulation reference signal occupies the first symbol of each radio frame used to transmit G-link data information.

10. The method according to claim 9, characterized in that, The first symbol of the radio frame used to transmit G-link data information is the first symbol used to transmit G-link data information after removing the synchronization sequence, broadcast information, CR-IND information, GCI information, and PAPS signal overhead resources from the radio frame used to transmit G-link data information.

11. The method according to claim 5, characterized in that, The demodulation reference signal for the G-link data information occupies the first symbol of the G-link data information transmitted in each half-superframe.

12. The method according to claim 11, characterized in that, The first symbol in the half-superframe for transmitting G-link data information is the first symbol in the half-superframe used for transmitting G-link data information after removing the synchronization sequence, broadcast information, CR-IND information, GCI information, and PAPS signal overhead resources.

13. The method according to claim 1, characterized in that, The mapping between the G-link data demodulation reference signal and the antenna port supports 1 to 4 antenna ports.

14. The method according to claim 13, characterized in that, The number of antenna ports is 1. Each effective subcarrier is mapped to the demodulation reference signal of the G-link data information of one antenna port. The DC subcarrier is not mapped to the demodulation reference signal of the G-link data information.

15. The method according to claim 13, characterized in that, The number of antenna ports is 2. Every two consecutive effective subcarriers form a group. The demodulation reference signal of the G-link data information of antenna port 0 is mapped to the first effective subcarrier, and the demodulation reference signal of the G-link data information of antenna port 1 is mapped to the second effective subcarrier. The DC subcarrier is not mapped to the demodulation reference signal of the G-link data information.

16. The method according to claim 13, characterized in that, The number of antenna ports is 3. Every three consecutive effective subcarriers form a group. The demodulation reference signal of the G-link data information of antenna port 0 is mapped to the first effective subcarrier, the demodulation reference signal of the G-link data information of antenna port 1 is mapped to the second effective subcarrier, and the demodulation reference signal of the G-link data information of antenna port 2 is mapped to the third effective subcarrier. The DC subcarrier is not mapped to the demodulation reference signal of the G-link data information.

17. The method according to claim 13, characterized in that, The number of antenna ports is 4. Every two consecutive effective subcarriers form a group. The demodulation reference signal of the G-link data information of antenna port 0 and antenna port 1 is mapped to the first effective subcarrier, and the demodulation reference signal of the G-link data information of antenna port 2 and antenna port 3 is mapped to the second effective subcarrier. The DC subcarrier is not mapped to the demodulation reference signal of the G-link data information.

18. A communication method, characterized in that, include: On the terminal T-link, a demodulation reference signal for T-link data information is transmitted via a superframe; wherein the configuration method for transmitting the demodulation reference signal for T-link data information includes at least one of the following: One T-link data demodulation reference signal is configured within each superframe, one T-link data demodulation reference signal is configured in each radio frame used to transmit T-link data within each superframe, and one T-link data demodulation reference signal is configured in each half-superframe within each superframe.

19. The method according to claim 18, characterized in that, Before transmitting T-link data radio frames on the T-link, the method further includes: Receive higher-layer signaling, which is used to indicate the configuration of Format0 or Format1, wherein Format0 supports the configuration of demodulation reference signal for T-link data information with low time-domain density, and Format1 supports the configuration of demodulation reference signal for T-link data information with high time-domain density.

20. The method according to claim 19, characterized in that, The superframe has a frame structure of Class A frames, Class B frames, and Class C frames; wherein the scheduling period of Class A frames is at the superframe granularity, the scheduling period of Class B frames is at the half-superframe granularity, and the scheduling period of Class C frames is at the radio frame granularity.

21. The method according to claim 19, characterized in that, The frame structure is the Class A frame, the Format0 configuration format is used to indicate that one T-link data information demodulation reference signal is configured in each superframe, and the Format1 configuration format is used to indicate that one T-link data information demodulation reference signal is configured in each radio frame used to transmit T-link data information in each superframe.

22. The method according to claim 19, characterized in that, The frame structure is the Class B frame, the Format0 configuration format is used to indicate that one T-link data information demodulation reference signal is configured in each half-superframe, and the Format1 configuration format is used to indicate that one T-link data information demodulation reference signal is configured in each radio frame used to transmit T-link data information in each half-superframe.

23. The method according to claim 19, characterized in that, The frame structure is the Class C frame, and the Format1 configuration format is used to indicate that each radio frame used to transmit T-link data information is configured with one T-link data information demodulation reference signal.

24. The method according to claim 18, characterized in that, The demodulation reference signal for the T-link data information occupies the first symbol of the T-link data information transmitted in each superframe.

25. The method according to claim 24, characterized in that, The first symbol in the superframe used to transmit T-link data information is the first symbol in the superframe after removing the T-link control information (TCI) and channel sounding signal (SRS) overhead resources for transmitting T-link data information.

26. The method according to claim 18, characterized in that, The T-link data demodulation reference signal occupies the first symbol of each radio frame used to transmit T-link data information.

27. The method according to claim 26, characterized in that, The first symbol of the radio frame used to transmit T-link data information is the first symbol used to transmit T-link data information after removing the T-link control information (TCI) and channel sounding signal (SRS) overhead resources from the radio frame used to transmit T-link data information.

28. The method according to claim 18, characterized in that, The demodulation reference signal for the T-link data information occupies the first symbol of the T-link data information transmitted in each half-superframe.

29. The method according to claim 28, characterized in that, The first symbol in the half-superframe for transmitting T-link data information is the first symbol used to transmit T-link data information after removing the T-link control information (TCI) and channel sounding signal (SRS) overhead resources from the half-superframe.

30. The method according to claim 18, characterized in that, The mapping between the T-link data demodulation reference signal and the antenna port supports 1 to 4 antenna ports.

31. The method according to claim 30, characterized in that, The number of antenna ports is 1. Each effective subcarrier is mapped to the demodulation reference signal of the T-link data information of one antenna port. The DC subcarrier is not mapped to the demodulation reference signal of the T-link data information.

32. The method according to claim 30, characterized in that, The antenna ports are 2. Each pair of two consecutive effective subcarriers is a group. The demodulation reference signal of the T-link data information of antenna port 0 is mapped to the first effective subcarrier, and the demodulation reference signal of the T-link data information of antenna port 1 is mapped to the second effective subcarrier. The DC subcarrier is not mapped to the demodulation reference signal of the T-link data information.

33. The method according to claim 30, characterized in that, The antenna ports are 3 in number. Every three consecutive effective subcarriers form a group. The demodulation reference signal of the T-link data information of antenna port 0 is mapped to the first effective subcarrier, the demodulation reference signal of the T-link data information of antenna port 1 is mapped to the second effective subcarrier, the demodulation reference signal of the T-link data information of antenna port 2 is mapped to the third effective subcarrier, and the DC subcarrier is not mapped to the demodulation reference signal of the T-link data information.

34. The method according to claim 30, characterized in that, The number of antenna ports is 4. Every two consecutive effective subcarriers form a group. The demodulation reference signal of the T-link data information of antenna port 0 and antenna port 1 is mapped to the first effective subcarrier. The demodulation reference signal of the T-link data information of antenna port 2 and antenna port 3 is mapped to the second effective subcarrier. The DC subcarrier is not mapped to the demodulation reference signal of the T-link data information.

35. A frame structure, characterized in that, The frame structure includes superframes, each superframe comprising 8 radio frames. The radio frames are management radio frames (GF), terminal radio frames (TF), or hybrid radio frames (MF). All symbols in the GF frame are used for management G-link transmission, all symbols in the TF frame are used for terminal T-link transmission, and the MF frame includes management symbols (GS), terminal symbols (TS), and handover symbols. The GS is used for G-link transmission, the TS is used for T-link transmission, and the handover symbols are used for GS and TS symbol handover time protection. The configuration of the superframe on the G link includes at least one of the following: One G-link data demodulation reference signal is configured in each superframe, one G-link data demodulation reference signal is configured in each radio frame used to transmit G-link data information in each superframe, and one G-link data demodulation reference signal is configured in each half-superframe in each superframe. The configuration of the superframe on the T-link includes at least one of the following methods: One T-link data demodulation reference signal is configured within each superframe, one T-link data demodulation reference signal is configured in each radio frame used to transmit T-link data within each superframe, and one T-link data demodulation reference signal is configured in each half-superframe within each superframe.

36. The frame structure according to claim 35, characterized in that, The superframe has a frame structure of Class A frames, Class B frames, and Class C frames; wherein the scheduling period of Class A frames is at the superframe granularity, the scheduling period of Class B frames is at the half-superframe granularity, and the scheduling period of Class C frames is at the radio frame granularity.

37. The frame structure according to claim 36, characterized in that, The Class A frames and Class B frames support Format0 and Format1 configuration formats, while the Class C frames support Format1 configuration format. Among them, on the G link, the Format0 configuration format supports the configuration of demodulation reference signal for G link data information with low time domain density, and the Format1 configuration format supports the configuration of demodulation reference signal for G link data information with high time domain density. On the T-link, the Format0 configuration format supports the configuration of demodulation reference signals for T-link data information with low time-domain density, while the Format1 configuration format supports the configuration of demodulation reference signals for T-link data information with high time-domain density.

38. The frame structure according to claim 37, characterized in that, The frame structure of the superframe is the Class A frame; On the G link, the Format0 configuration format is used to indicate that one G link data information demodulation reference signal is configured in each superframe, and the Format1 configuration format is used to indicate that one G link data information demodulation reference signal is configured in each radio frame used to transmit G link data information in each superframe; On the T-link, the Format0 configuration format is used to indicate that one T-link data demodulation reference signal is configured in each superframe, and the Format1 configuration format is used to indicate that one T-link data demodulation reference signal is configured in each radio frame used to transmit T-link data information in each superframe.

39. The frame structure according to claim 36, characterized in that, The frame structure of the superframe is the type B frame; On the G link, the Format0 configuration format is used to indicate that one G link data information demodulation reference signal is configured in each half-superframe, and the Format1 configuration format is used to indicate that one G link data information demodulation reference signal is configured in each radio frame used to transmit G link data information in each half-superframe; On the T-link, the Format0 configuration format is used to indicate that one T-link data information demodulation reference signal is configured in each half-superframe, and the Format1 configuration format is used to indicate that one T-link data information demodulation reference signal is configured in each radio frame used to transmit T-link data information in each half-superframe.

40. The frame structure according to claim 36, characterized in that, The frame structure of the superframe is the C-type frame; On the G link, the Format1 configuration format is used to indicate that one G link data information demodulation reference signal is configured in each radio frame used to transmit G link data information; On the T-link, the Format1 configuration format is used to indicate that one T-link data information demodulation reference signal is configured in each radio frame used to transmit T-link data information.

41. The frame structure according to claim 36, characterized in that, The radio frames of the Class C frames are MF frames.

42. A communication device, characterized in that, The communication device includes a star flash module for transmitting star flash signals, and the communication device further includes: A communication module for transmitting demodulation reference signals of G-link data information via superframe over a G-link management system; wherein the configuration method for transmitting the demodulation reference signals of the G-link data information includes at least one of the following: One G-link data demodulation reference signal is configured within each superframe, one G-link data demodulation reference signal is configured in each radio frame used to transmit G-link data within each superframe, and one G-link data demodulation reference signal is configured in each half-superframe within each superframe.

43. The communication device according to claim 42, characterized in that, The communication device is also used to implement the method as described in any one of claims 2-17.

44. A communication device, characterized in that, The communication device includes a star flash module for transmitting star flash signals, and the communication device further includes: A communication module for transmitting T-link data information demodulation reference signals via superframes on a terminal T-link; wherein the configuration method for transmitting the T-link data information demodulation reference signals includes at least one of the following: One T-link data demodulation reference signal is configured within each superframe, one T-link data demodulation reference signal is configured in each radio frame used to transmit T-link data within each superframe, and one T-link data demodulation reference signal is configured in each half-superframe within each superframe.

45. The communication device according to claim 44, characterized in that, The communication device is also used to implement the method as described in any one of claims 18-34.

46. ​​The communication device according to any one of claims 42 to 45, characterized in that, The communication device further includes a Bluetooth module for transmitting Bluetooth signals and / or a WiFi module for transmitting WiFi signals, wherein one or more of the StarScan module, the Bluetooth module, or the WiFi module share a radio frequency (RF) unit.

47. The communication device according to any one of claims 42 to 45, characterized in that, The StarSpark module and the WiFi module for WiFi signal transmission are located in different subsystems of the communication device. The subsystem of the StarSpark module and the subsystem of the WiFi module are integrated in the communication device with at least one of the following: Bluetooth system, StarSpark Low Power SLE system, Global Navigation Satellite System (GNSS), Always On system, Power Management Unit (PMU), Clock Management Unit (CMU), Flash memory, application system, and audio system.

48. The communication device according to any one of claims 42 to 45, characterized in that, The StarSpark module and the WiFi module for WiFi signal transmission are located in the same subsystem of the communication device. The subsystems of the StarSpark module and the WiFi module are integrated in the communication device with at least one of the following: Bluetooth system, StarSpark Low Energy (SLE) system, Global Navigation Satellite System (GNSS), Always On System, Power Management Unit (PMU), Clock Management Unit (CMU), Flash memory, application system, and audio system.

49. The communication device according to any one of claims 42 to 45, characterized in that, The communication device further includes a Bluetooth module for realizing Bluetooth signal transmission and / or a WiFi module for realizing WiFi signal transmission. At least one of the Bluetooth module or the WiFi module coexists and communicates with the star flash module through different antennas. The coexistence strategy includes at least one of the following: frequency division multiplexing, code division multiplexing, time division multiplexing, channel avoidance, or aggregation scheduling.

50. The communication device according to any one of claims 42 to 45, characterized in that, The communication device further includes a Bluetooth module for implementing Bluetooth signal transmission and / or a WiFi module for implementing WiFi signal transmission. At least one of the Bluetooth module or the WiFi module coexists and communicates with the StarScan module through the same antenna. The coexistence strategy includes at least one of the following: frequency division multiplexing, code division multiplexing, time division multiplexing, software static strategy, or message transmission arbitration (PTA) strategy.

51. A communication device, characterized in that, The device includes: One or more processors; Memory, used to store one or more computer programs or instructions; When the one or more computer programs or instructions are executed by the one or more processors, the one or more processors perform the method as described in any one of claims 1 to 34.

52. A computer storage medium, characterized in that, Includes computer instructions that, when executed on an electronic device, cause the electronic device to perform the method as described in any one of claims 1-34.

53. A computer program product, characterized in that, When the computer program product is run on a computer, it causes the computer to perform the method as described in any one of claims 1-34.

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