Invented by Zhe Liu, Guohua Zhou, Yubo Yang, Yi Long, Zhang Zhang, Jinlin Peng, Zhenfei Tang, Huawei Technologies Co Ltd

The market for data transmission devices, terminal devices, and network devices has seen significant growth in recent years. With the increasing reliance on technology and the growing demand for faster and more efficient data transmission, these devices have become essential in various industries and sectors. Data transmission devices, also known as data communication devices, are used to transmit data from one location to another. These devices include modems, routers, switches, and wireless access points. They play a crucial role in ensuring seamless and reliable data transmission, whether it is within a local area network (LAN) or over the internet. Terminal devices, on the other hand, are used to access and interact with the data transmitted through the network. These devices include computers, laptops, tablets, smartphones, and other handheld devices. They provide the interface for users to access and utilize the data transmitted through the network. Network devices, such as servers and storage devices, are responsible for storing and managing the data transmitted through the network. They ensure that the data is securely stored and readily available for users when needed. These devices are crucial for businesses and organizations that rely heavily on data storage and management. The market for these devices has been driven by various factors. Firstly, the increasing adoption of cloud computing and the growing demand for data storage and management have fueled the need for network devices. As businesses and organizations generate and collect vast amounts of data, the demand for efficient and scalable storage solutions has grown exponentially. Secondly, the proliferation of internet-connected devices and the rise of the Internet of Things (IoT) have contributed to the growth of the market for data transmission and terminal devices. With more devices being connected to the internet, there is a need for reliable and fast data transmission to ensure seamless connectivity and communication. Furthermore, the increasing reliance on remote work and virtual collaboration has also boosted the demand for these devices. As more people work from home or remotely, the need for efficient data transmission and reliable terminal devices has become paramount. In addition, the advancements in technology, such as the development of 5G networks, have further fueled the market growth. 5G networks offer faster data transmission speeds and lower latency, enabling the seamless transfer of large amounts of data in real-time. This has opened up new possibilities for industries such as healthcare, manufacturing, and transportation, where real-time data transmission is critical. The market for data transmission devices, terminal devices, and network devices is highly competitive, with numerous players vying for market share. Established companies such as Cisco, Huawei, and Juniper Networks dominate the market, but there are also smaller players and startups that offer innovative solutions. In conclusion, the market for data transmission devices, terminal devices, and network devices is experiencing significant growth due to the increasing demand for faster and more efficient data transmission. The adoption of cloud computing, the rise of IoT, the need for remote work solutions, and technological advancements such as 5G networks are driving the market’s expansion. As technology continues to advance, the market for these devices is expected to grow even further, providing new opportunities for businesses and organizations across various sectors.

The Huawei Technologies Co Ltd invention works as follows

This application provides a method of data transmission and a communication apparatus. The method comprises: receiving information on uplink resource information, including at least two reference points; one reference point corresponds with one uplink carrier. Determining, based upon the configuration of uplink resources, which uplink carrier an uplink transmission is located on.

Background for Data transmission device, terminal device and network device

In the new radio standardization for 5th generation (5G), NR supports a spectrum from 6 GHz up to 60 GHz. A long-term evolution (LTE), on the other hand, is mainly deployed within a frequency range of 3 GHz. Spectrum resource utilization is low when LTE, and in particular a long-term evolution frequency division duplexing uplink resource (LTE FDD), is lightly used. In order to make the most of uplink resources on an LTE carrier, NR and LTE transmissions can share the same uplink resource. This will allow the carrier’s spectrum uplink resources to be fully utilized and the coverage of NR transmissions improved. In a standardization session, it was decided that the shared resource of the LTE-FDD carrier could be used as a supplementary frequency resource for NR. NR user equipment can access an NR-network by choosing a physical random access channel from the NR uplink resources for FDD/TDD and supplementary resources. “The way to use an SUL resource requires further study.

This application is a data-transmission method, terminal device and network device. The network device transmits to the terminal a list of reference points for the uplink carriers available in a terminal device cell. The terminal can then determine which carrier in the uplink carriers is the one on which the terminal’s uplink transmission resources are located. This prevents the terminal device from confusion and conflict during the use of uplink resource on the plurality uplink carriers. Transmission efficiency and quality is also improved.

A first aspect of the invention is a method for transmitting data. The method comprises: receiving by a terminal, information on uplink resources sent by a device of a network, wherein the information on uplink resources includes at least two reference points and each reference point corresponds with one uplink carrier, and determining by the terminal, based on this information, the location of an uplink transmission device.

The data transmission method described in the first aspect allows the terminal to determine, from the plurality uplink carriers that are in a cell accessible by the device, which carrier contains the uplink resource. This allows the device to complete the initial data transmission or access on the carrier that has the resource. This prevents the terminal device from being confused or having conflicts when using uplink resources across the multiple uplink carriers. It also improves the transmission quality and efficiency.

The receiving of uplink configuration information by a terminal by a network device may include: receiving by the device an information block SIB from the network device. The SIB contains the configuration information. In addition, the configuration information includes at least two initial bandwidth portions BWPs. One uplink initial corresponding to an uplink reference point.

The method may include the following: Receiving, by the device terminal, RRC Connection Establishment Information, RRC Connection Re-Establishment Information, or RRC Configuration Reconfiguration Information sent by the device network, wherein the RRC Connection Establishment or RRC Connection reestablishment or RRC Configuration reconfiguration includes information about atleast one of the reference points for the uplink; and determining by the device terminal, based on the RRCconnection establishment information, RRCconnection

In a possible implementation, the RRC configuration information also includes information on target cells, which includes uplink resource configuration data. The method includes performing target cell handover by the terminal device based on this information.

In a possible implementation, the RRC configuration information includes further information about an uplink and downlink reference points, a physical ID, a signal block of synchronization, and offset data of the downlink point. The method also includes adding the secondary cell pair by the terminal device based on the RRC configuration information.

In a possible implementation, the RRC information reconfiguration includes at least one physical cell identifier of a synchronization block SSB that is associated with a second cell carrier associated with the terminal, frequency domain data of the SSB, and information regarding a downlink point for the secondary carrier associated with the terminal. The method also includes adding the secondary carrier by the terminal based on RRC information reconfiguration.

In a possible implementation, the RRC Connection Establishment Information, RRC Connection Re-Establishment Information, or RRC Configuration Information includes at least the following: uplink BWP Configuration information of terminal device, Physical Uplink Control Channel PUCCH Configuration information, Sounding Reference Signal SRS information.

In a possible implementation, the information regarding the uplink referential point contains at least one of the absolute frequency domain position that corresponds to the reference uplink point and the reference point index value that corresponds to the reference uplink point.

A data transmission method according to a second embodiment is disclosed. The method comprises: receiving by a terminal, radio resource management RRC configuration information sent by a device network, wherein the RRC configuration information includes at the least one of physical cell IDs of synchronization signals blocks SSBs associated with secondary cells of the device terminal, frequency domain data of the SSBs associated with secondary cells of the device terminal, and information regarding a downlink point of secondary cells of the device terminal; adding the secondary device by the device terminal based on RRC reconfiguration.

According to the data-transmission method described in the second aspect of the invention, if the terminal device is required to add a secondary cell, then the network device can notify the terminal of information about the secondary cells. This allows the terminal to quickly and accurately detect the secondary cell. It also improves communication efficiency and the user’s experience.

In a possible implementation, the frequency-domain information of SSBs associated with secondary cells of terminal devices includes, at least, a reference frequency value for the SSB of a secondary cell carrier, SSBs associated with secondary cells of terminal devices, offset information about the downlink reference of secondary cells of terminal devices, and a number indicating the frequency band in which the SSB of a secondary cell is located.

In a possible implementation, the SSB is associated with the secondary device of the terminal.

In a possible implementation, the RRC configuration information includes additional information such as an uplink and downlink reference points, a physical ID, a signal block for synchronization, and offset data of the downlink point. The method also includes adding the secondary carrier pair by the terminal device based on the RRC configuration information.

A data transmission method according to a third element is disclosed. The method comprises: generating by a network unit uplink configuration information. This information contains information about atleast two uplink references points. Each uplink reference corresponds to an uplink carrier.

The third aspect of the data transmission method provides that, when there is a plurality uplink carriers within a cell, the network device can send information to the terminal about the reference points. Based on this information, the terminal may identify a carrier in the plurality uplink carriers on which the terminal’s uplink transmission resource is located. This allows the terminal to complete the initial access to or the subsequent data transmission using the resource of the carrier. This prevents the terminal device from being confused or having conflicts when using uplink resources across the multiple uplink carriers. It also improves the transmission quality and efficiency.

The third aspect can be implemented by: “Generating, by a device network, information on uplink resources configuration includes: Generating, by that device network, a SIB that contains the information; the information also includes at least two initial bandwidth portions BWPs and each initial BWP corresponds with one uplink reference points. Sending, by this device network, information on uplink resources configuration includes sending the SIB.

In a possible implementation, the RRC configuration information also includes target cell information. The target cell information includes an uplink and downlink reference points, a physical ID, a signal block for synchronization, and offset data of the downlink point of the carrier pair.

In a possible implementation, the RRC configuration information includes additional information such as an uplink and downlink reference points, a physical ID, a signal block for synchronization, and offset data of the downlink point. The terminal device uses the RRC configuration information to add the second cell carrier pair.

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