WO2020164581A1

WO2020164581A1 - Communication method and apparatus

Info

Publication number: WO2020164581A1
Application number: PCT/CN2020/075236
Authority: WO
Inventors: 李军; 铁晓磊; 米翔; 卡佐卡梅拉
Original assignee: 华为技术有限公司
Priority date: 2019-02-14
Filing date: 2020-02-14
Publication date: 2020-08-20
Also published as: CN111565459B; CN111565459A

Abstract

Provided are a communication method and apparatus, relating to the technical field of communications and used for effectively using a resource allocated by a network device to a terminal. The method comprises: a terminal receiving timing advance (TA) information from a network device in a random access process; and the terminal sending first indication information to the network device in the random access process, wherein the first indication information is used for indicating that the random access process is used for updating a TA, and/or the first indication information is used for requesting the reservation of a first preconfigured uplink resource (PUR).

Description

Communication method and device

This application claims the priority of a Chinese patent application filed with the State Intellectual Property Office on February 14, 2019, the application number is 201910115215.0, and the application name is "a communication method and device", the entire content of which is incorporated into this application by reference .

Technical field

The embodiments of the present application relate to the field of communication technologies, and in particular, to a communication method and device.

Background technique

With the development of wireless communication technology, the Internet of Things (IoT) has become more and more common in people's daily lives. The so-called Internet of Things refers to a communication network that connects things to things. Among them, Narrowband Internet of Things (NB-IoT) and Machine Type Communications (MTC) are two very promising IoT technologies. Typical IoT applications include smart grids, smart agriculture, smart transportation, smart homes, and environmental monitoring. Since the Internet of Things needs to be applied in a variety of scenarios, such as from outdoor to indoor, from above ground to underground, many special requirements are put forward for the design of Internet of Things. Terminals in the Internet of Things are idle most of the time. Occasionally, some status information needs to be reported, such as the status of street lights, the status of water and electricity meters, etc.

In order to reduce signaling overhead, the base station can allocate preconfigured uplink resources (PUR) to the terminal. The terminal in the idle state can transmit uplink data to the base station on the PUR. After transmitting the uplink data, the terminal can directly enter the sleep state. If a terminal in an idle state uses PUR for uplink transmission, it needs to have a correct timing advance (TA). The purpose of TA is to enable uplink transmissions sent by terminals at different distances from the base station to reach the base station at the same time or the arrival time is within the range of the cyclic prefix (CP).

TA is determined by the distance between the terminal and the base station. As the terminal moves, the terminal needs to update the TA to maintain uplink synchronization. At present, the terminal in the prior art can use the random access process as shown in Figure 1 or the random access response (Random Access Response, RAR) in the Early Data Transmission (EDT) technology as shown in Figure 2. Also called message two (Msg2) to get TA. For the solution shown in FIG. 1 or FIG. 2, after the random access process, the terminal can establish a radio resource control (Radio Resource Control, RRC) connection with the base station. In this way, the terminal can enter the connected state. The base station can then allocate uplink resources for the terminal.

However, if the terminal only wants to update the TA and continue to use PUR to transmit uplink data to the base station, at this time, if the base station allocates uplink resources for the terminal, it may cause a waste of resources.

Summary of the invention

The embodiments of the present application provide a communication method and device for effectively using resources allocated by a base station to a terminal.

In order to achieve the foregoing objectives, the embodiments of the present application provide the following technical solutions:

In the first aspect, an embodiment of the present application provides a communication method, including: a terminal receives timing advance TA information from a network device in a random access process. The terminal sends first indication information to the network device during the random access process, where the first indication information is used to indicate that the random access process is used to update the TA, and/or the The first indication information is used to request to reserve the first pre-configured uplink resource PUR.

The embodiment of the present application provides a communication method. The method obtains TA information sent by a network device through a terminal, and then the terminal sends to the network device in the random access process to indicate that the random access process is used to update the TA, and/or, The first indication information used to indicate to reserve the first pre-configured uplink resource PUR allocated to the terminal. This can facilitate the network equipment to determine that the purpose of the terminal performing the random access procedure is to update the TA, so that the network equipment does not establish an RRC connection for the terminal, thereby avoiding the waste of signaling during the establishment of the RRC connection and avoiding the terminal entering the connected state Then, the terminal is allocated resources for uplink transmission. And/or, the network device may determine whether to reserve the first PUR allocated to the terminal according to the first indication information.

In a possible implementation manner, the terminal receiving the timing advance TA information from the network device in the random access process includes: the terminal receives the TA information carried in the message 2 in the random access process .

In a possible implementation manner, the terminal sending the first indication information to the network device in the random access process includes: the terminal sends the message 3 in the random access process to the network device, the first An indication information is carried in the message 3.

In a possible implementation manner, the method provided in the embodiment of the present application further includes: the terminal receives second instruction information from the network device, where the second instruction information is used to instruct to release the first PUR. It is convenient for the terminal to determine that the first PUR is released according to the second indication information, so that it does not send uplink data on the first PUR in the idle state.

In a possible implementation manner, the terminal receiving the second indication information from the network device includes: the terminal receives the message 4 from the network device during the random access process, and the second indication information carries In said message 4. Can reduce signaling overhead.

In a possible implementation manner, the method provided in the embodiment of the present application further includes: the terminal sends the retention time information used to indicate the first PUR to the network device. By providing the retention time information, it is convenient for the network device to determine that the first PUR can be released when the retention time indicated by the retention time information arrives.

In a possible implementation manner, the first indication information provided in the embodiment of the present application is also used to request the network device to allocate the second PUR to the terminal. Alternatively, the first indication information is also used to request the network device not to allocate the second PUR to the terminal. In the case that the terminal does not have the second PUR or the network device does not allocate any PUR to the terminal, the terminal can facilitate the network device to determine that the terminal supports the PUR capability by sending the first indication information for requesting the second PUR to the network device. This facilitates the network equipment to allocate the second PUR to the terminal. Or the terminal may send the first indication information for requesting not to allocate the second PUR to the network device to facilitate the network device to determine that the terminal does not support the PUR capability, so that the terminal is not allocated the second PUR. This avoids resource waste caused by blindly assigning PUR to the terminal because the network device is uncertain whether the terminal supports the PUR capability.

In the second aspect, the method provided in the embodiment of the present application further includes: the terminal receives the timing advance TA information from the network device in the random access process. The terminal sends the first indication information to the network device during the random access process. The first indication information is used to request the network device to allocate the second PUR to the terminal, or to request the network device not to allocate the second PUR to the terminal.

In a possible implementation manner, the first indication information is further used to indicate one or more of the following information: the service sent on the second PUR is a periodic service or an aperiodic service, and the second PUR is a shared PUR Or dedicated PUR.

It should be understood that the terminal in the first aspect in the embodiments of the present application may also execute the process executed by the terminal in the second aspect. That is, the first aspect and the second aspect can be implemented in combination.

In a third aspect, an embodiment of the present application provides a communication method, including: a network device sends timing advance TA information to a terminal in a random access process. The network device receives the first indication information from the terminal during the random access process. The first indication information is used to indicate that the random access process is used to update the TA, and/or the first indication information is used to request to reserve the first pre-configured uplink resource PUR allocated to the terminal.

In a possible implementation manner, the network device sending the timing advance TA information to the terminal during the random access process includes: the network device sends to the terminal the message 2 carried in the random access process The TA information.

In a possible implementation manner, the network device receiving the first indication information from the terminal in the random access process includes: the network device receives the message 3 from the terminal in the random access process, the The first indication information is carried in the message 3.

In a possible implementation manner, the method provided in the embodiment of the present application further includes: the network device sends second indication information to the terminal. The second indication information is used to indicate the release of the first PUR.

In a possible implementation, the network device sending second indication information to the terminal includes: the network device sends a message 4 to the terminal during the random access process, and the second indication information is carried on the terminal. Said message 4.

In a possible implementation manner, the method provided in the embodiment of the present application further includes: the network device receives the retention time information used to indicate the first PUR from the terminal.

In a fourth aspect, an embodiment of the present application provides a communication method, including: a network device sends timing advance TA information to a terminal in a random access process. The network device receives the first indication information from the terminal during the random access process. The first indication information is used to request the network device to allocate the second PUR to the terminal, or to request the network device not to allocate the second PUR to the terminal.

In a possible implementation manner, the method provided in the embodiment of the present application further includes: the network device sends the second PUR configuration information to the terminal through the second indication information.

In a possible implementation manner, the network device sending the second indication information to the terminal includes: the network device sends a message 4 to the terminal in a random access process, and the second indication information is carried in the message 4.

In a fifth aspect, an embodiment of the present application provides a communication method, including: a terminal in an idle state receives first indication information from a network device. The first indication information is used to notify the release of the pre-configured uplink resource PUR allocated for the terminal. The terminal sends the preamble sequence to the network device. The preamble sequence is used to indicate confirmation of the first indication information.

The embodiment of the present application provides a communication method, in which a terminal in an idle state receives first indication information from a network device. And feed back the preamble sequence to the network device. This is convenient for the network device side to determine according to the preamble sequence that the terminal has received the first indication information.

In a possible implementation manner, the method provided in the embodiment of the present application further includes: the terminal receives the information of the first resource from the network device. The first resource is used for the terminal to send the preamble sequence, and the first resource is a non-competitive resource.

In a possible implementation manner, the terminal sending the preamble sequence to the network device includes: the terminal sends the preamble sequence to the base station on the first resource.

In a sixth aspect, an embodiment of the present application provides a communication method, including: a network device sends first indication information to a terminal in an idle state. The first indication information is used to notify the release of the pre-configured uplink resources allocated to the terminal. The network device receives the preamble sequence from the terminal. The preamble sequence is used to indicate confirmation of the first indication information.

In a possible implementation manner, the method provided in the embodiment of the present application further includes: in response to the preamble sequence, the network device releases the PUR of the terminal.

In a possible implementation manner, the method provided in the embodiment of the present application further includes: the network device sends the information of the first resource to the terminal. The first resource is used for the terminal to send the preamble sequence, and the first resource is a non-competitive resource.

In a possible implementation manner, the network device receiving the preamble sequence from the terminal includes: the network device receives the preamble sequence from the terminal on the first resource.

In a seventh aspect, an embodiment of the present application provides a communication device. The communication device may be a terminal or a chip in the terminal. The communication device may include a receiving unit and a transmitting unit. When the communication device is a terminal, the receiving unit may be a receiver, and the sending unit may be a transmitter. The transmitter can be integrated with the receiver, called a transceiver. The communication device may also include a processing unit and a storage unit. The storage unit may be a memory. The storage unit is used to store instructions. The processing unit may be a processor. The processing unit executes the instructions stored in the storage unit, so that the terminal implements the first aspect or a communication method described in any one of the possible implementation manners of the first aspect. When the communication device is a chip in the terminal, the processing unit may be a processor, and the receiving unit and the sending unit may be communication interfaces. For example, the communication interface in the chip can be an input/output interface, a pin, or a circuit. The processing unit executes the instructions stored in the storage unit, so that the terminal implements the communication method described in the first aspect or any one of the possible implementations of the first aspect. The storage unit may be a storage unit in the chip (For example, register, cache, etc.), it may also be a storage unit (for example, read only memory, random access memory, etc.) located outside the chip in the terminal.

In an eighth aspect, an embodiment of the present application provides a communication device. The communication device may be a terminal or a chip in the terminal. The communication device may include a receiving unit and a transmitting unit. When the communication device is a terminal, the receiving unit may be a receiver, and the sending unit may be a transmitter. The transmitter can be integrated with the receiver, called a transceiver. The communication device may also include a processing unit and a storage unit. The storage unit may be a memory. The storage unit is used to store instructions. The processing unit may be a processor. The processing unit executes the instructions stored in the storage unit, so that the terminal implements the second aspect or a communication method described in any possible implementation manner of the second aspect. When the communication device is a chip in the terminal, the processing unit may be a processor, and the receiving unit and the sending unit may be communication interfaces. For example, the communication interface in the chip can be an input/output interface, a pin, or a circuit. The processing unit executes the instructions stored in the storage unit, so that the terminal implements the communication method described in the second aspect or any one of the possible implementations of the second aspect, and the storage unit may be a storage unit in the chip (For example, register, cache, etc.), it may also be a storage unit (for example, read only memory, random access memory, etc.) located outside the chip in the terminal.

In a ninth aspect, an embodiment of the present application provides a communication device. The communication device may be a network device or a chip in the network device. The communication device may include a sending unit and a receiving unit. When the communication device is a network device, the sending unit may be a transmitter. The receiving unit may be a receiver. Usually the transmitter and receiver in the network equipment can be integrated together called a transceiver. The communication device may also include a processing unit and a storage unit. The storage unit may be a memory. The storage unit is used to store instructions. The processing unit may be a processor. The processing unit executes the instructions stored in the storage unit, so that the network device implements the third aspect or any one of the communication methods described in the third aspect. When the communication device is a chip in a network device, the processing unit may be a processor, and the sending unit and the receiving unit may be communication interfaces. For example, the communication interface of the chip in the network device may be an input/output interface, a pin, or a circuit. The processing unit executes the instructions stored in the storage unit to enable the network device to implement the communication method described in the third aspect or any one of the possible implementations of the third aspect. The storage unit may be a storage in the chip. The unit (for example, register, cache, etc.) may also be a storage unit (for example, read-only memory, random access memory, etc.) located outside the chip in the network device.

In a tenth aspect, an embodiment of the present application provides a communication device. The communication device may be a network device or a chip in the network device. The communication device may include a sending unit and a receiving unit. When the communication device is a network device, the sending unit may be a transmitter. The receiving unit may be a receiver. Usually the transmitter and receiver in a network device can be integrated together called a transceiver. The communication device may also include a processing unit and a storage unit. The storage unit may be a memory. The storage unit is used to store instructions. The processing unit may be a processor. The processing unit executes the instructions stored in the storage unit, so that the network device implements the fourth aspect or any one of the communication methods described in the fourth aspect. When the communication device is a chip in a network device, the processing unit may be a processor, and the sending unit and the receiving unit may be communication interfaces. For example, the communication interface of the chip in the network device may be an input/output interface, a pin, or a circuit. The processing unit executes the instructions stored in the storage unit, so that the network device implements the fourth aspect or any one of the possible implementations of the fourth aspect described in the communication method, the storage unit may be a storage in the chip The unit (for example, register, cache, etc.) may also be a storage unit (for example, read-only memory, random access memory, etc.) located outside the chip in the network device.

In an eleventh aspect, an embodiment of the present application provides a communication device. The communication device may be a terminal or a chip in the terminal. The communication device may include a receiving unit and a transmitting unit. When the communication device is a terminal, the receiving unit may be a receiver, and the sending unit may be a transmitter. The transmitter can be integrated with the receiver, called a transceiver. The communication device may also include a processing unit and a storage unit. The storage unit may be a memory. The storage unit is used to store instructions. The processing unit may be a processor. The processing unit executes the instructions stored in the storage unit, so that the terminal implements the fifth aspect or any one of the communication methods described in the fifth aspect. When the communication device is a chip in the terminal, the processing unit may be a processor, and the receiving unit and the sending unit may be communication interfaces. For example, the communication interface in the chip can be an input/output interface, a pin, or a circuit. The processing unit executes the instructions stored in the storage unit, so that the terminal implements the communication method described in the fifth aspect or any one of the possible implementations of the fifth aspect, and the storage unit may be a storage unit in the chip (For example, register, cache, etc.), it may also be a storage unit (for example, read only memory, random access memory, etc.) located outside the chip in the terminal.

In a twelfth aspect, an embodiment of the present application provides a communication device. The communication device may be a network device or a chip in the network device. The communication device may include a sending unit and a receiving unit. When the communication device is a network device, the sending unit may be a transmitter. The receiving unit may be a receiver. Usually the transmitter and receiver in a network device can be integrated together called a transceiver. The communication device may also include a processing unit and a storage unit. The storage unit may be a memory. The storage unit is used to store instructions. The processing unit may be a processor. The processing unit executes the instructions stored in the storage unit, so that the network device implements the communication method described in the sixth aspect or any one of the possible implementation manners of the sixth aspect. When the communication device is a chip in a network device, the processing unit may be a processor, and the sending unit and the receiving unit may be communication interfaces. For example, the communication interface of the chip in the network device may be an input/output interface, a pin, or a circuit. The processing unit executes the instructions stored in the storage unit, so that the network device implements the communication method described in the sixth aspect or any one of the possible implementations of the sixth aspect. The storage unit may be a storage in the chip. The unit (for example, register, cache, etc.) may also be a storage unit (for example, read-only memory, random access memory, etc.) located outside the chip in the network device.

In the thirteenth aspect, the embodiments of the present application provide a computer-readable storage medium. The computer-readable storage medium stores a computer program or instruction. When the computer program or instruction is run on a computer, the computer can execute the same as the first aspect, The communication method described in any one of the possible implementation manners of the second aspect, the third aspect, the fourth aspect, the fifth aspect, or the sixth aspect.

In the fourteenth aspect, the embodiments of the present application provide a computer program product including instructions. When the instructions are run on a computer, the computer can execute aspects such as the first, second, third, fourth, and fifth aspects. Or the communication method described in any possible implementation of any aspect of the sixth aspect.

In a fifteenth aspect, an embodiment of the present application provides a communication system, which includes: the terminal described in the seventh aspect and various possible implementation manners, and the ninth aspect and various possible implementation manners of the ninth aspect Network device described in.

In a sixteenth aspect, an embodiment of the present application provides a communication system, which includes: the terminal described in the eighth aspect and various possible implementation manners, and the tenth aspect and various possible implementation manners of the tenth aspect Network device described in.

In a seventeenth aspect, an embodiment of the present application provides a communication system, which includes: the terminal described in the eleventh aspect and various possible implementation manners, and the twelfth aspect and various possibilities in the twelfth aspect The network device described in the implementation.

In an eighteenth aspect, an embodiment of the present application provides a communication device. The communication device includes a processor and a storage medium. The storage medium stores instructions. When the instructions are executed by the processor, they implement various aspects such as the first aspect or the first aspect. Possible implementations describe the communication method.

In a nineteenth aspect, an embodiment of the present application provides a communication device. The communication device includes a processor and a storage medium. The storage medium stores instructions. When the instructions are executed by the processor, they implement various aspects such as the second aspect or Possible implementations describe the communication method.

In a twentieth aspect, an embodiment of the present application provides a communication device. The communication device includes a processor and a storage medium. The storage medium stores instructions. When the instructions are executed by the processor, they can implement various aspects such as the third aspect or Possible implementations describe the communication method.

In the twenty-first aspect, an embodiment of the present application provides a communication device that includes a processor and a storage medium. The storage medium stores instructions. When the instructions are executed by the processor, they can implement the fourth aspect or the fourth aspect. One possible implementation of the communication method described.

In a twenty-second aspect, an embodiment of the present application provides a communication device that includes a processor and a storage medium. The storage medium stores instructions. When the instructions are executed by the processor, each of the fifth aspect or the fifth aspect is implemented. One possible implementation of the communication method described.

In a twenty-third aspect, an embodiment of the present application provides a communication device that includes a processor and a storage medium. The storage medium stores instructions. When the instructions are executed by the processor, each of the sixth aspect or the sixth aspect is implemented. One possible implementation of the communication method described.

In a twenty-fourth aspect, an embodiment of the present application provides a communication device, including: a processor, the processor is coupled with a memory, the memory is used to store a computer program or instruction, and the processor is used to execute the computer program or instruction in the memory , Causing the communication device to execute the communication method described in various possible embodiments of any one of the first aspect, the second aspect, the third aspect, the fourth aspect, the fifth aspect, or the sixth aspect.

In an optional implementation manner, the communication device in the embodiment of the present application may further include a transceiver and a memory.

It should be understood that, when the communication device described in the twenty-fourth aspect corresponds to the first aspect and various possible implementation manners of the first aspect, the communication device may be a terminal or a device applied to a terminal. For example, the device applied in the terminal may be a chip, a chip system or a circuit system. When the communication device described in the twenty-fourth aspect corresponds to the second aspect and various possible implementation manners of the second aspect, the communication device may be a terminal or a device applied to a terminal. For example, the device applied in the terminal may be a chip, a chip system or a circuit system. When the communication device described in the twenty-fourth aspect corresponds to the third aspect and various possible implementation manners of the third aspect, the communication device may be a network device or a device applied to a network device. For example, the device applied in the network device may be a chip, a chip system or a circuit system. When the communication device described in the twenty-fourth aspect corresponds to the fourth aspect and various possible implementation manners of the fourth aspect, the communication device may be a network device or a device applied to a network device. For example, the device applied in the network device may be a chip, a chip system or a circuit system. When the communication device described in the twenty-fourth aspect corresponds to the fifth aspect and various possible implementation manners of the fifth aspect, the communication device may be a terminal or a device applied to a terminal. For example, the device applied in the terminal may be a chip, a chip system or a circuit system. When the communication device described in the twenty-fourth aspect corresponds to the sixth aspect and various possible implementation manners of the sixth aspect, the communication device may be a network device or a device applied to a network device. For example, the device applied in the network device may be a chip, a chip system or a circuit system.

For the beneficial effects of the second aspect to the twenty-fourth aspect and various implementation manners of the present application, reference may be made to the analysis of the beneficial effects in the first aspect and various implementation manners, which will not be repeated here.

Description of the drawings

FIG. 1 is a first schematic diagram of a flow of a random access process provided by an embodiment of this application;

FIG. 2 is a second schematic diagram of a flow of a random access process provided by an embodiment of this application;

FIG. 3 is a schematic structural diagram of a communication system provided by an embodiment of this application;

4 is a schematic structural diagram of a communication device provided by an embodiment of this application;

FIG. 5 is a schematic diagram of a TA provided by an embodiment of this application;

FIG. 6 is a first schematic flowchart of a communication method provided by an embodiment of this application;

FIG. 7 is a second schematic flowchart of a communication method provided by an embodiment of this application;

FIG. 8 is a third schematic flowchart of a communication method provided by an embodiment of this application;

FIG. 9 is a fourth schematic flowchart of a communication method provided by an embodiment of this application;

FIG. 10 is a fifth schematic flowchart of a communication method provided by an embodiment of this application;

FIG. 11 is a sixth schematic flowchart of a communication method provided by an embodiment of this application;

FIG. 12 is a first structural diagram of a communication device according to an embodiment of the application;

FIG. 13 is a second structural diagram of a communication device provided by an embodiment of this application;

FIG. 14 is a third structural diagram of a communication device provided by an embodiment of this application;

FIG. 15 is a fourth structural diagram of a communication device provided by an embodiment of this application;

FIG. 16 is a schematic structural diagram of a communication device provided by an embodiment of this application.

detailed description

In order to clearly describe the technical solutions of the embodiments of the present application, in the embodiments of the present application, words such as "first" and "second" are used to distinguish the same items or similar items that have substantially the same function and effect. For example, the first PUR and the second PUR are only used to distinguish between different PURs, and the sequence of them is not limited. Those skilled in the art can understand that words such as "first" and "second" do not limit the quantity and order of execution, and words such as "first" and "second" do not limit the difference.

It should be noted that in this application, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or illustrations. Any embodiment or design solution described as "exemplary" or "for example" in this application should not be construed as being more preferable or advantageous than other embodiments or design solutions. To be precise, words such as "exemplary" or "for example" are used to present related concepts in a specific manner.

The technical solution of the present application can be applied to various communication systems, such as: long time evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (TDD) ) System, universal mobile telecommunication system (UMTS), worldwide interoperability for microwave access (WiMAX) communication system, public land mobile network (PLMN) system, device-to-device (device to device, D2D) network system or machine to machine (machine to machine, M2M) network system and the future 5th generation (5-Generation, 5G) communication system, etc.

The network architecture and business scenarios described in the embodiments of this application are intended to more clearly illustrate the technical solutions of the embodiments of this application, and do not constitute a limitation on the technical solutions provided in the embodiments of this application. Those of ordinary skill in the art will know that with the network With the evolution of architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of the present application are equally applicable to similar technical problems. In the embodiments of this application, the method provided is applied to a New Radio (NR) system or a 5G network as an example for description.

In this application, "at least one" refers to one or more, and "multiple" refers to two or more. "And/or" describes the association relationship of the associated objects, indicating that there can be three relationships, for example, A and/or B, which can mean: A alone exists, both A and B exist, and B exists alone, where A, B can be singular or plural. The character "/" generally indicates that the associated objects are in an "or" relationship. "The following at least one item (a)" or similar expressions refers to any combination of these items, including any combination of a single item (a) or plural items (a). For example, at least one item (a) of a, b, or c can mean: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or multiple .

As shown in FIG. 3, an embodiment of the present application provides a communication system. The communication system includes: a network device 100 and one or more terminals 200 that communicate with the network device 100. It should be understood that only one terminal and network device are shown in FIG. 3. In the actual process, there may be more network devices and terminals.

The terminal 200 can be connected to the network device 100 in a wireless manner, and can access the core network through the network device 100. The terminal 200 may be in a fixed position or movable. FIG. 3 is only a schematic diagram. The communication system may also include other network devices, such as wireless relay devices and wireless backhaul devices, which are not shown in FIG. 3. The embodiment of the present application does not limit the number of the terminal 200 and the network device 100 included in the communication system.

It should be noted that the communication system shown in FIG. 3 may also include a core network. The network device 100 can be connected to the core network. The core network may be a 4G core network (for example, Evolved Packet Core (EPC)) or a 5G core network (5G Core, 5GC), or a core network in various future communication systems.

Taking the core network may be a 4G core network as an example, the network device 100 may be an evolved Node B (eNB or eNodeB) in a 4G system. The terminal 200 is a terminal that can perform information transmission with an eNB. The eNB accesses the EPC network through the S1 interface.

Taking a 5G core network as an example, the network device 100 may be the Next Generation Node B (gNB) in the NR system, and the terminal 200 is a terminal that can transmit information with the gNB. The gNB is connected to the 5GC through the NG interface.

Different communication systems may have different names. For example, the network device 100 may also be a 3rd generation partnership project (3rd generation partnership project, 3GPP) protocol base station, or may be a non-3GPP protocol base station.

The terminal 200 may establish a connection with the network device 100 through a random access procedure (Random Access Procedure) and obtain uplink synchronization, and then may send uplink data to the accessed network device 100.

The terminal 200 is a device with a wireless communication function, which can be deployed on land, including indoor or outdoor, handheld or vehicle-mounted, or a sensor device. It can also be deployed on the water (such as ships, etc.). It can also be deployed in the air (for example, on airplanes, balloons, and satellites). The terminal can also be called User Equipment (UE), Access Terminal (Access Terminal), User Unit, User Station, Mobile Station, Mobile Station, and Remote Station (Remote Station), Remote Terminal (Remote Terminal), Mobile Equipment (Mobile Equipment), User Terminal (User Terminal), Wireless Communication Equipment (Wireless Telecom Equipment), User Agent (User Agent), User Equipment (User Equipment) or User device. The terminal 200 may be a station (Station, STA) in a wireless local area network (Wireless Local Area Networks, WLAN), a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, or a wireless local loop (Wireless Local). Loop, WLL) stations, Personal Digital Assistant (PDA) devices, handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices, and next-generation communication systems ( For example, a terminal in a fifth-generation (Fifth-Generation, 5G) communication network or a terminal in a public land mobile network (Public Land Mobile Network, PLMN) network that will evolve in the future. Among them, 5G can also be called New Radio (NR).

In addition, the terminal 200 may also be a wearable device. The wearable device is directly worn on the body, or a portable device integrated into the user's clothes or accessories. Wearable devices are not only a hardware device, but also realize powerful functions through software support, data interaction, and cloud interaction. In a broad sense, wearable smart devices include full-featured, large-sized, complete or partial functions that can be achieved without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, and need to cooperate with other devices such as smart phones. Use, such as various smart bracelets and smart jewelry for physical sign monitoring. Such as smart watches, smart bracelets, pedometers, etc. In-vehicle equipment (for example, cars, bicycles, electric vehicles, airplanes, ships, trains, high-speed rail, etc.), virtual reality (VR) equipment, augmented reality (AR) equipment, industrial control (industrial control) Wireless terminals, smart home equipment (for example, refrigerators, TVs, air conditioners, electricity meters, etc.), smart robots, workshop equipment, wireless terminals in self-driving, wireless terminals in remote medical surgery, and smart Wireless terminals in a smart grid, wireless terminals in transportation safety, wireless terminals in a smart city, or wireless terminals in a smart home, and flying equipment (e.g., smart Robots, hot air balloons, drones, airplanes, etc. In this application, for ease of description, chips deployed in the above devices, such as System-On-a-Chip (SOC), baseband chips, etc., or other chips with communication functions may also be referred to as terminals.

The network equipment in the embodiments of the present application may be equipment used to communicate with terminals. The network equipment may be a global system for mobile communications (GSM) system or code division multiple access (CDMA). The base transceiver station (BTS) can also be the base station (NodeB, NB) in the wideband code division multiple access (WCDMA) system, or the evolved base station (evoled NodeB) in the LTE system. , ENB or eNodeB), it can also be a wireless controller in a cloud radio access network (CRAN) scenario, or the network device can be a relay station, access point, vehicle-mounted device, wearable device, and future 5G The network equipment in the network or the network equipment in the future evolved PLMN network, etc., are not limited in the embodiment of the present application.

As shown in FIG. 4, FIG. 4 shows a schematic diagram of the hardware structure of a communication device provided by an embodiment of the present application. The hardware structure of the terminal 200 and the network device 100 in the embodiment of the present application may refer to the structure shown in FIG. 4. The communication device includes a processor 41.

Optionally, the communication device may further include: a communication line 44 and at least one communication interface (in FIG. 4, it is only exemplary and the transceiver 43 is included as an example for illustration).

The processor 41 can be a general-purpose central processing unit (central processing unit, CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more programs for controlling the execution of the program of this application. integrated circuit.

The communication line 44 may include a path to transmit information between the aforementioned components.

The transceiver 43 uses any device such as a transceiver for communication with other devices or communication networks, such as Ethernet, radio access network (RAN), wireless local area networks (WLAN), etc. .

Optionally, the communication device may further include a memory 42.

The memory 42 may be a read-only memory (ROM) or other types of static storage devices that can store static information and instructions, random access memory (RAM), or other types that can store information and instructions The dynamic storage device can also be electrically erasable programmable read-only memory (EEPROM), compact disc read-only memory (CD-ROM) or other optical disk storage, optical disc storage (Including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or can be used to carry or store desired program codes in the form of instructions or data structures and can be used by a computer Any other media accessed, but not limited to this. The memory can exist independently and is connected to the processor through the communication line 44. The memory can also be integrated with the processor.

The memory 42 is used to store computer-executable instructions for executing the solution of the present application, and the processor 41 controls the execution. The processor 41 is configured to execute computer-executable instructions stored in the memory 42 to implement the communication method provided in the following embodiments of the present application.

Optionally, the computer-executable instructions in the embodiments of the present application may also be referred to as application program code, which is not specifically limited in the embodiments of the present application.

In a specific implementation, as an embodiment, the processor 41 may include one or more CPUs, such as CPU0 and CPU1 in FIG. 4.

In specific implementation, as an embodiment, the communication device may include multiple processors, such as the processor 41 and the processor 45 in FIG. 4. Each of these processors can be a single-CPU (single-CPU) processor or a multi-core (multi-CPU) processor. The processor here may refer to one or more devices, circuits, and/or processing cores for processing data (for example, computer program instructions).

The transmission method provided by the embodiment of the present application will be specifically described below in conjunction with FIG. 3 to FIG. 4.

It should be noted that the name of the message between each network element or the name of each parameter in the message in the following embodiments of this application is just an example, and other names may also be used in specific implementations. The embodiments of this application do not make specific details about this. limited.

The network device 100 may allocate preconfigured uplink resources (PUR) to the terminal 200. The terminal in the idle state can transmit uplink data on the PUR, and directly enter the sleep state after transmitting the uplink data. That is, for a terminal with PUR, it can transmit uplink data on the PUR. Thus skipping the random access process. However, due to the delay of signal propagation between the network device 100 and the terminal 200, there may be a large time difference between the signals from the multiple terminals 200 to the network device 100, thereby causing interference between the multiple terminals. Therefore, if the idle state terminal uses PUR to transmit uplink data, it needs to have a correct timing advance (TA). Among them, TA refers to the offset of uplink transmission relative to downlink transmission. That is, as shown in FIG. 5, TA means that the uplink radio frame (Uplink radio frame) i starts (N _TA + N _{TA offset} )×T _s seconds (seconds) before the corresponding downlink radio frame (Downlink radio frame) i. The purpose of TA is to enable uplink data sent by terminals 200 at different distances from the network device 100 to reach the network device 100 at the same time. In this way, interference between the terminals 200 can be eliminated. Or, the time when the uplink data of different terminals 200 arrive at the network device 100 is within the range of Cyclic Prefix (CP).

Therefore, usually in order to eliminate the influence of the time difference, the eNB may indicate the timing advance instruction to the terminal during the random access process, and the terminal determines the TA according to the received timing advance instruction. Thus avoiding interference between multiple terminals. The terminal can access the eNB through the four-step random access process shown in FIG. 1 or the random access process shown in FIG. 2. As shown in Fig. 1, the specific content of the four-step random access process can be referred to the description in the prior art, and the details are not repeated in the embodiment of the present application. For the random access process shown in Figure 2, the Msg1 sent by the terminal to the eNB includes a random access preamble and a data channel (for example, Physical Uplink Shared Channel (PUSCH)), which means that the Send uplink data before uplink synchronization, which can reduce the delay of uplink data transmission. In addition, compared to the random access process shown in FIG. 1, the Msg2 sent by the eNB to the terminal in the random access process shown in FIG. 2 does not need to send the scheduling information of the data channel for the terminal, thereby reducing signaling overhead.

Regardless of the random access process shown in FIG. 1 and the random access process shown in FIG. 2, the eNB may carry timing advance command (TA command) and uplink (Uplink) grant information in Msg2. Multiple terminals perform timing advance separately according to the received timing advance instructions, thereby avoiding interference between multiple terminals.

However, if the terminal is only to update the TA, then transmit uplink data on the PUR. At this time, the terminal does not need to enter the connected state. However, for the solution shown in Figure 1, the terminal can update the TA through the traditional RACH mechanism. After the legacy RACH, the terminal can enter the connected state. Furthermore, the eNB needs to allocate resources for uplink transmission to the terminal. For the solution shown in Figure 2, the terminal updates TA through the EDT process. After the EDT process, the terminal can enter the connected state or remain in the idle state.

The connected state means that the terminal is in the connected state after establishing an RRC connection with the base station.

The idle state means that the terminal has not established an RRC connection with the base station, and the UE is in the idle state.

As shown in Figure 1, the specific process of the traditional random access (Random Access procedure) mechanism is: an idle terminal sends a random access preamble (Random Access Preamble) to a base station (for example, Figure 1 uses an eNB as an example) , Also known as message 1 (message1, Msg1) (for example, the terminal may send a preamble to the base station on a random access channel). After detecting the random access preamble, the base station sends a random access response (Random Access Response, RAR) to the terminal, which is also called message two (Msg2). The terminal sends an uplink message through a data channel (for example, a physical uplink shared channel (PUSCH)) on the allocated uplink resource according to the instruction of Msg2, which is also called message three (Msg3). In order to resolve the conflict, after successfully receiving a Msg3, the base station returns a conflict resolution message (also referred to as Msg4) to the successfully accessed terminal. The Msg4 carries the unique identity in Msg3 to specify the successfully accessed terminal. The difference between the EDT process and the traditional random access mechanism is that, as shown in Figure 2, the Msg3 sent by the terminal to the base station carries user data. The terminal receives Msg4, and Msg4 can carry downlink user data.

For ease of description, the random access process shown in FIG. 1 may be referred to as the RACH process. The random access process shown in Figure 2 is referred to as the EDT process.

However, the base station is not sure whether the purpose of the terminal performing the random access process is to update the TA or to enter the connected state to transmit uplink data through the RACH process, and PUR is no longer used.

Based on this, an embodiment of the present application provides a communication method in which after obtaining the TA, the terminal sends to the base station to indicate that the random access procedure is intended to update the TA, and/or reserve the first allocated to the terminal One PUR instruction information. The network device can be made to distinguish that the terminal needs to continue to retain the first PUR, and/or, it is not necessary to enter the connected state. Therefore, it is possible to avoid entering the connected state and to avoid resource waste caused by allocating resources for uplink transmission to the terminal.

The embodiments of the present application provide a communication method, and the execution subject of the sending end of the communication method may be a network device or a chip applied to the network device. The execution body of the receiving end of the communication method may be a terminal or a chip applied to the terminal. In the following embodiments, the execution subject of the sending end of the communication method is the network device, and the execution subject of the receiving end of the communication method is the terminal as an example.

As shown in FIG. 6, FIG. 6 shows a communication method provided by an embodiment of the present application, and the method includes:

Step 101: The network device sends the timing advance TA information to the terminal during the random access process.

The TA information is used to determine the TA allocated by the network device to the terminal.

Exemplarily, the network device may send the TA to the terminal in a message (message, Msg) 2 in the random access process. That is, TA is sent in message 2 in the random access process. For example, message 2 may be a random access response (RAR).

As an example, step 101 in the embodiment of the present application can be implemented in the following manner: the network device sends the TA information carried in the message 2 in the random access process to the terminal. In another example, the TA may also send message 2 to the terminal along with message 2 when the network device sends message 2 to the terminal during the random access process. However, the TA information may not be carried in message 2 at this time. That is, if the network device receives the message 1 sent by the terminal, in the process of making feedback on the message 1, in addition to the feedback message 2, it can also feed back TA information.

In the embodiment of the present application, after the terminal is in the cell search process, the terminal can obtain downlink synchronization with the cell, but the terminal can only perform uplink transmission when it obtains uplink synchronization with the cell. Therefore, the terminal can establish a connection with the cell and obtain uplink synchronization through a random access process. The random access process in the embodiments of the present application can be triggered by the following events: 1) A wireless connection is established when the terminal initially accesses. That is, the terminal goes from the RRC idle state to the RRC connected state. 2) The RRC connection re-establishment process. This allows the terminal to reestablish the wireless connection after the wireless link fails. 3). Cell handover. That is, the terminal needs to establish uplink synchronization with the new cell. 4) In order to locate the terminal, TA is required. It should be understood that when the terminal accomplishes the above purpose through the random access process, the random access process initiated by the terminal this time ends.

The main purpose of the random access procedure in the embodiment of this application is as follows: establish uplink synchronization; establish a unique terminal identifier C-RNTI, and request the network to allocate uplink resources to the terminal. Therefore, the random access process is not only used for initial access, but also for new cell access during handover, access after radio link failure, resumption of uplink synchronization when there is uplink/downlink data transmission, and UL- SCH resource request, etc.

The random access process in the embodiment of the present application may be the random access process as shown in FIG. 1 or the EDT process as shown in FIG. 2. The embodiments of this application do not limit this.

Exemplarily, the message 2 of the random access procedure carries a field for indicating TA.

It should be understood that the network device in the embodiment of the present application may be the network device 100 as shown in FIG. 3. The terminal may be the terminal 200 as shown in FIG. 3.

Step 102: The terminal receives TA information from the network device during the random access process.

As an example, step 102 in the embodiment of the present application may be implemented in the following manner: the terminal receives the TA information carried in the message 2 in the random access process. Exemplarily, the terminal may receive TA information from the network device in message 2 in the random access process. That is, the TA information is received in message 2 in the random access process.

In another example, the terminal receives the TA information from the network device in the process of receiving the message 2 from the network device in the random access process. That is, after sending the message 1, the terminal may receive the TA information from the network device before sending the message 3 to the network device.

Step 103: The terminal sends first indication information to the network device during the random access process.

The first indication information is used to indicate that the random access procedure is used to update the TA, and/or the first indication information is used to request to reserve the first pre-configured uplink resource PUR allocated to the terminal.

It should be understood that the first indication information in the embodiment of the present application is used to indicate that the random access procedure is used to update the TA, so that the terminal can continue to use the PUR. Or the first indication information is used to request to reserve the first pre-configured uplink resource PUR allocated to the terminal. Alternatively, the first indication information is used to indicate that the random access process is used to update the TA and reserve the first pre-configured uplink resource PUR allocated to the terminal.

Optionally, the first indication information may be used to indicate that the random access procedure is used to update the TA: the first indication information may be used to request replacement for not establishing an RRC connection for the terminal.

It should be understood that the terminal has the first PUR. The first PUR may be pre-configured for the terminal. The first PUR may also be allocated by the network device to the terminal before the random access process.

In an optional implementation manner, step 103 may be specifically implemented in the following manner: the terminal sends a message 3 in the random access process to the network device, and the first indication information is carried in the message 3. In another optional implementation manner, step 103 can be specifically implemented in the following manner: the terminal sends the message 3 in the random access process to the network device and receives the message 4 from the network device. Send the first instruction message. That is, the network device may receive the first indication information within the time period when the message 3 is received and the message 4 is fed back to the terminal.

The first indication information may be carried by idle bits or idle state in message 3. Of course, some bits can also be added to message 3 to carry the first indication information. Of course, the first indication information may also be sent in other uplink messages sent by the terminal to the network device in the random process.

It should be noted that, for the EDT process, in addition to the first indication information, the message 3 in the EDT process may also carry uplink data sent to the network device.

Step 104: The network device receives first indication information from the terminal during the random access process, where the first indication information is used to indicate that the random access process is used to update the TA, and/or the first indication information is used to request retention as the terminal The allocated first pre-configured uplink resource PUR.

Exemplarily, for the network device, the first indication information is received in the message 3 in the random access process. The network device receives the message 3 from the terminal in the random access process, and the first indication information is carried in the message 3. Of course, the first indication information may also be received in other uplink messages sent by the terminal to the network device in the random process.

The embodiment of the present application provides a communication method. The method obtains TA information sent by a network device through a terminal, and then the terminal sends to the network device in the random access process to indicate that the random access process is used to update the TA, and/or, The first indication information used to indicate to reserve the first pre-configured uplink resource PUR allocated to the terminal. This can facilitate the network device to determine that the purpose of the terminal performing the random access procedure is to update the TA. In this way, the network device may not establish an RRC connection for the terminal, thereby avoiding signaling waste in the process of establishing an RRC connection, and avoiding allocating resources for the terminal for uplink transmission after the terminal enters the connected state. And/or, the network device may determine whether to reserve the first PUR allocated to the terminal according to the first indication information.

It should be understood that after sending the first indication information to the network device, the terminal may send the uplink data to the network device on the first PUR if there is uplink data.

It should be noted that if the terminal determines that the size of the first PUR cannot meet the requirements of the uplink data sent by the terminal or the time of the first PUR configured by the network device for the terminal has expired, the terminal can use the first indication information to indicate to the network device The RRC connection needs to be established. In this way, the terminal can obtain the uplink resources allocated by the network device after the RRC connection is established. In turn, the uplink data can be sent to the network device on the uplink resource.

Since the specific content of message 3 is different for the EDT process or the RACH process, the following examples will be given separately.

Example 1-1, for the RACH process, the message3 is used to request the establishment of an RRC connection. At this time, the specific content of message3 is as follows:

Example 1-2, for the RACH process, the message3 is used to request the re-establishment of the RRC connection. At this time, the specific content of message3 is as follows:

Example 1-3, for the EDT process, the message3 is used to request to resume (Resume) the suspended RRC connection or perform UP-EDT. At this time, the specific content of message3 is as follows:

Example 1-4, for the EDT process, this message3 is used to start CP-EDT. At this time, the specific content of message3 is as follows:

It should be understood that the first indication information may be carried by some spare states in RRC message3. For example, it can be carried in the spare state in the establishmentCause.

In the embodiment of the present application, after the network device determines that the random access procedure is used to update the TA according to the first indication information, the network device can independently determine whether it needs to establish an RRC connection with the terminal. For example, if the network device determines that it can send downlink data to the terminal in message 4 of the EDT process, or the network device determines that it does not need to send downlink data to the terminal temporarily, the network device can determine that no RRC connection is established with the terminal. If the network device determines that it needs to send downlink data to the terminal, the network device can determine that an RRC connection can be established with the terminal.

Exemplarily, the network device may carry third indication information in the message 4, and the third indication information is used to instruct the terminal to establish an RRC connection or not to establish an RRC connection. For the message 4 in the EDT process, in addition to carrying the third indication information, it may also carry the downlink data sent to the terminal, or may not carry the downlink data sent to the terminal. For message 4 in the RACH procedure, third indication information may be carried.

For example, the size of the third indication information may be 1 bit. For example, the third indication information may be the first indicator, or the third indication information may be the second indicator. For example, the first indicator is "1". The second indicator is "0".

It should be understood that the network device and the terminal may negotiate if the RRC connection does not need to be established, the network device may not send the third indication information to the terminal. Or, it may be negotiated between the network device and the terminal that if an RRC connection needs to be established, the network device may not send the third indication information to the terminal.

After the terminal receives the indication information instructing the terminal to establish an RRC connection or not to establish an RRC connection in message 4, it can determine whether an RRC connection needs to be established with the network device or not to establish an RRC connection. If the terminal determines that an RRC connection needs to be established, it executes the procedure for establishing an RRC in the prior art to establish an RRC connection with the network device. If the terminal determines that the RRC connection does not need to be established, the terminal can send the uplink data to the network device on the PUR (for example, the first PUR) allocated to the terminal by the network device according to the TA. After that, the terminal can enter the sleep state.

In the embodiment of the present application, if the network device determines that the terminal requests to reserve the first PUR according to the first indication information, the network device can independently determine whether it is necessary to reserve the first PUR for the terminal. For example, if the network device determines that the frequency of using the first PUR is lower than the preset frequency threshold, or the current resources are insufficient, the network device may instruct the terminal to release the first PUR. Of course, if the network device determines that the current resources are sufficient, the network device can instruct the terminal to reserve the first PUR.

Exemplarily, if the network device considers that the current resources are relatively sufficient, or the service priority sent by the terminal on the first PUR is higher, the network device may instruct the terminal to reserve the first PUR.

Since the specific content of message 4 is different for the EDT process or the RACH process, the following examples will be given separately.

Example 2-1, for the RACH process, the message4 is used to establish an RRC connection. At this time, the specific content of message4 is as follows:

Example 2-2, for the RACH process, the message4 is used to resume the suspended RRC connection. At this time, the specific content of message4 is as follows:

Example 2-3, for the EDT process, the message4 is used to release the RRC connection or complete the UP-EDT process. At this time, the specific content of message4 is as follows:

Example 2-4, for the EDT process, the message4 is used to confirm the successful completion of the CP-EDT process. At this time, the specific content of message4 is as follows:

It should be understood that the third indication information and/or the second indication information in the embodiment of the present application may use the newly added bit in message 4, or a newly added IE to send the indication of the third indication information, and/or the first 2. Instruction information.

As shown in FIG. 7, in an optional embodiment, the method provided in the embodiment of the present application further includes:

Step 105: The network device sends second instruction information to the terminal, where the second instruction information is used to instruct to release the first PUR.

Exemplarily, step 105 in the embodiment of the present application may be implemented in the following manner: the network device sends a message 4 to the terminal during a random access process, and the second indication information is carried in the message 4.

Step 106: The terminal receives the second indication information from the network device.

Exemplarily, step 106 in the embodiment of the present application may be implemented in the following manner: the terminal receives the message 4 from the network device during the random access process, and the second indication information is carried in the message 4. .

After step 106, that is, after the terminal receives the second indication information, the terminal can determine that the first PUR needs to be released. Of course, the second indication information in the embodiment of the present application may also be used to indicate the release time information of the first PUR or to indicate how long the first PUR is released. In this way, the terminal can release the first PUR when the time indicated by the release time information has arrived.

It should be noted that the second indication information in the embodiment of the present application may also be carried in other messages within a period of time before the network device receives the message 3 of the terminal and the terminal establishes the RRC connection with the network device.

It should be noted that step 105 provided in the embodiment of the present application can also be replaced in the following manner: the network device sends second indication information to the terminal, and the second indication information is used to instruct the terminal to reserve the first PUR. Step 106 can also be replaced by the following method. The terminal receives the second indication information from the network device to determine that the terminal reserves the first PUR. Of course, the second indication information in the embodiment of the present application is also used to indicate the retention time information of the first PUR. In this way, the terminal can determine how long the first PUR can be retained. And the first PUR is released when the time indicated by the retention time information is reached.

It should be noted that step 103 provided in the embodiment of the present application can also be replaced by the following method: the terminal sends Msg3 to the network device, and the Msg3 may be the Msg3 in FIG. 1 or FIG. 2. That is, the first indication information may not be carried in the Msg3 sent by the terminal to the network device. And the terminal may receive the indication information used to instruct the release of the first PUR in Msg4.

When the network device instructs the terminal to reserve the first PUR, the second indication information is equivalent to confirmation (confirmation). When the terminal receives the second indication information for instructing to reserve the first PUR, the terminal can also restart the timer of the first PUR (the meaning of this timer is that the first PUR resource is released after the timer times out).

Or, in an optional implementation manner, no matter the second indication information is used to indicate whether to reserve or release the first PUR, the second indication information may also be used to indicate the configuration information of the second PUR that is re-allocated for the terminal. The configuration information of the second PUR may include the number of repetitions, the number of resource units (resource unit number, RU number), and so on.

The foregoing embodiment mainly describes the case where the first indication information is used to request the reservation of the first PUR. Of course, in an alternative implementation manner, the first indication information is used to request the reservation of the first PUR. The first indication may also be used. The information is used to indicate a request to release the first PUR replacement. If the network device receives the first indication information for indicating a request to release the first PUR. The network device may determine whether to reserve the first PUR or release the first PUR. The network device sends second instruction information to the terminal. The second indication information is used to indicate to release the first PUR or reserve the first PUR.

In the embodiments of this application, the request and release are independent of each other. The first indication information may request to reserve the first PUR, and the second indication information is used to indicate the release of the first PUR. Or the first indication information may request the release of the first PUR, but the second indication information is used to indicate to reserve the first PUR.

In an optional implementation manner, the network device in the embodiment of the present application may send the second indication information and/or the third indication information to the terminal in the message 4 in the random access process. That is, the second indication information, and/or, the third indication information is sent in message 4 in the random access process. For the terminal, the second indication information and/or the third indication information are received in the message 4 in the random access process. For the EDT process, the message 4 in the EDT process may also carry downlink data or no downlink data.

In an optional embodiment, as shown in FIG. 8, the method provided in the embodiment of the present application further includes:

Step 107: The terminal sends the retention time information used to indicate the first PUR to the network device.

It should be noted that if the first indication information does not indicate that the first PUR is requested to be reserved, step 107 and step 108 can be omitted. That is, step 107 and step 108 are optional steps.

Exemplarily, the retention time information may be the retention period or duration of the first PUR.

For example, the retention time information used to indicate the first PUR may be the start time and the end time of the retention of the first PUR. Or the retention time information for indicating the first PUR may be the start time and duration of the retention of the first PUR. Or the retention time information used to indicate the first PUR may be the initial period and the end period of the retention of the first PUR. Or the retention time information used to indicate the first PUR may be the initial period and the duration period of the retention of the first PUR. Or the retention time information used to indicate the first PUR may be the number of periods for which the first PUR is retained. Of course, if the first indication information does not carry the first PUR reservation start time or the first PUR reservation period, the network device and the terminal may use the time or period of receiving the first indication information as the start time or start time. The initial period is not limited in the embodiment of this application.

Step 108: The network device receives the retention time information used to indicate the first PUR from the terminal.

It should be understood that after the network device receives the retention time information indicating the first PUR, when the retention time of the first PUR is reached, the network device may actively determine to release the first PUR.

In an optional implementation manner, the retention time information used to indicate the first PUR may also be carried in the Msg3. For example, the first indication information may also be used to indicate the retention time information of the first PUR. For example, add more bits to Msg3 to indicate retention time information. Of course, the retention time information used to indicate the first PUR may also be in other high-level signaling in the random access process.

For example, the retention time information specifically refers to the retention period.

If the terminal does not have the first PUR when performing the random access procedure, or the first PUR of the current terminal does not meet the preset requirements, in a possible embodiment, as shown in FIG. 9, the present application The method provided in the embodiment further includes:

Step 109: The terminal sends fourth instruction information to the network device.

Wherein, the fourth indication information is used to request to allocate a second PUR to the terminal. Alternatively, the fourth indication information is used to indicate that the terminal has PUR capability or does not have PUR capability.

In the embodiment of the present application, a terminal has PUR capability, which means that the network device can allocate PUR to the terminal, so that the terminal can send uplink data to the network device on the PUR when the terminal is in an idle state. In the embodiment of the present application, a terminal does not have PUR capability, which means that the network device may not allocate PUR to the terminal.

Exemplarily, the fourth indication information may be sent in message 3 in the random access process.

Step 110: The network device receives the fourth instruction information from the terminal.

Exemplarily, the fourth indication information may be received by the network device in the message 3 in the random access process.

In the embodiment of this application, by performing step 109 and step 110, the network device can determine to allocate the second PUR to the terminal according to the request of the terminal, which can prevent the network device from blindly allocating the second PUR to the terminal if some terminals do not support PUR Or do not need the waste of resources caused by PUR.

It should be noted that step 109 and step 110 in the embodiment of the present application can also be implemented separately. That is to say, among the steps described in FIG. 9, step 101, step 102, step 103, step 104, step 107, and step 108 in FIG. 9 can also be omitted. That is, step 101, step 102, step 103, step 104, step 107, and step 108 are optional.

Optionally, the fourth indication information is further used to indicate one or more of the following information: the service sent on the second PUR is a periodic service or aperiodic service, and the second PUR is a shared PUR or a dedicated service. (dedicated) PUR, the period of the second PUR, and the size of the data packet transmitted on the second PUR.

Exemplarily, the size of the fourth indication information may be N bits, and N is an integer greater than or equal to 1. For example, the terminal uses 1 bit in Msg3 to request the second PUR from the network device; or uses 1 bit to request the network device whether the service sent on the second PUR is periodic or aperiodic; or uses 1 bit to request the network device with 1 bit request dedicated PUR is still shared PUR.

In the embodiment of the present application, the size of the data packet transmitted on the second PUR requested by the terminal from the network device may be a fixed-size data packet or a data packet within a numerical range. For example, 500bit-600bit, or 200bit to 300bit.

Before step 101, the method provided in the embodiment of the present application may further include: the terminal sends a preamble sequence (Preamble) to the network device, which may also be referred to as message 1. It should be noted that, for the RACH process shown in Fig. 1, the terminal can select the traditional Preamble resource to send the Preamble. For the EDT process shown in Figure 1, the terminal can select the EDT Preamble resource to send the Preamble.

As shown in FIG. 10, FIG. 10 shows another communication method provided by an embodiment of the present application, and the method includes:

Step 201: The network device sends first indication information to a terminal in an idle state, where the first indication information is used to notify the release of the pre-configured uplink resource PUR allocated for the terminal.

It should be understood that the network device may be the network device 100 shown in FIG. 3, and the terminal may be the terminal 200 shown in FIG. The terminal has PUR.

Exemplarily, the network device may send downlink control information (Down control information, DCI) to the terminal, and the DCI uses a bit or a state or a separate field to notify the release. For example, the DCI may be a narrowband physical downlink control channel (Narrowband Physical Downlink Control Channel, NPDCCH) sequence (order). The NPDCCH order can also include preamble format indicator, NPRACH starting number of NPRACH repetitions, NPRACH subcarrier indication (Subcarrier indication of NPRACH), NPRACH carrier indication (Carrier indication of NPRACH), etc. area.

The search space where the DCI is located can be type2-CSS, or USS, or a search space specifically defined for PUR.

Exemplarily, the network device may also send media access control signaling (media access control control element, MAC CE) to the terminal. Among them, the MAC CE carries the first indication information.

Step 202: The terminal in the idle state receives the first indication information from the network device.

It should be understood that the terminal may receive the first indication information from the network device through DCI. Optionally, the first indication information is also used to indicate time information for releasing PUR.

Step 203: The terminal sends a preamble sequence (Preamble) to the network device, where the preamble sequence is used to indicate confirmation of the first indication information.

Specifically, the preamble sequence sent by the terminal to the network device is used to indicate that the first indication information is received.

Exemplarily, after receiving the first indication information, the terminal sends the Preamble (the next available NPRACH resource, which may be n+k2) on the next available narrowband physical random access channel (NPRACH) resource. , K2 is greater than or equal to the NPRACH resource after 8, and n is the end time of receiving the first indication information).

It should be understood that the preamble sequence used to indicate the confirmation of receipt of the first indication information can be understood as: the preamble sequence is used to indicate that the terminal agrees to release the PUR, or correctly receives the first indication information.

Step 204: The network device receives the Preamble from the terminal.

In an optional implementation manner, the method provided in the embodiment of the present application further includes:

Step 205: In response to the Preamble, release the PUR of the terminal.

Exemplarily, if the network device receives the Preamble, it can release the PUR when the time to release the PUR is reached.

Optionally, the network device may also send a feedback message to the terminal, which is used to confirm the release of the PUR, or the network device has successfully released the PUR, or the network device has correctly received the Preamble. Of course, optionally, after receiving the feedback information, the terminal may also send confirmation information to the network device, and the confirmation information is used to indicate that the terminal has confirmed that the PUR is released.

In an optional implementation manner, the first indication information in the embodiment of the present application is also used to instruct the terminal to send a preamble sequence, or used to instruct the terminal to perform a random access procedure, or used to indicate information about the terminal preamble sequence.

If the first indication information informs the terminal to perform the random access process, the terminal is not notified of the preamble sequence information, so the terminal can randomly select a Preamble to send by itself. If the first indication information informs the terminal of the information of the preamble sequence, the terminal uses the preamble indicated by the network device to send.

In an optional embodiment, as shown in FIG. 11, the method provided in the embodiment of the present application further includes:

Step 206: The network device sends information about the first resource to the terminal, where the first resource is used by the terminal to send a preamble sequence, and the first resource is a non-competitive resource.

Optionally, the information of the first resource may also be carried in the first indication information, that is, the first indication information in step 201 may also be used to indicate the information of the first resource. The information of the first resource is used to determine the first resource. For example, it may be the length of the first resource, the location of the first resource, and other parameters.

For example, the information of the first resource includes subcarrier ID and coverage level.

The first resource being a non-competitive resource can also be understood as a dedicated resource of the terminal.

Step 207: The terminal receives the first resource information from the network device.

Correspondingly, step 203 can be specifically implemented in the following manner: the terminal sends the preamble sequence to the network device on the first resource. Step 204 can be implemented in the following manner: the network device receives the preamble sequence from the terminal on the first resource.

The foregoing mainly introduces the solution provided by the embodiment of the present application from the perspective of interaction between various network elements. It can be understood that, in order to realize the above-mentioned functions, each network element, such as a terminal and a network device, includes a hardware structure and/or software module corresponding to each function. Those skilled in the art should easily realize that in combination with the units and algorithm steps of the examples described in the embodiments disclosed herein, the embodiments of the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software-driven hardware depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered as going beyond the scope of the embodiments of the present application.

The embodiment of the present application may divide the terminal and the network device into functional modules according to the foregoing method examples. For example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The above-mentioned integrated modules can be implemented in the form of hardware or software functional modules. It should be noted that the division of modules in the embodiments of the present application is illustrative, and is only a logical function division, and there may be other division methods in actual implementation. The following is an example of using each functional module corresponding to each functional division:

In the case of using an integrated unit, FIG. 12 shows a schematic structural diagram of the communication device involved in the foregoing embodiment. The communication device may be a terminal or a chip applied to the terminal. The communication device includes: a receiving unit 101 and a sending unit 102.

In an example, the receiving unit 101 is configured to support the communication device to execute step 102 executed by the terminal in the foregoing embodiment. The sending unit 102 is configured to support the communication device to execute step 103 executed by the terminal in the foregoing embodiment.

Optionally, the receiving unit 101 is further configured to support the supporting communication device to execute step 106 executed by the terminal in the foregoing embodiment. Optionally, the sending unit 102 is configured to support the communication device to execute step 107 and step 109 performed by the terminal in the foregoing embodiment.

In another example, the receiving unit 101 is configured to support the communication device to execute step 202 executed by the terminal in the foregoing embodiment. The sending unit 102 is configured to support the communication device to execute step 203 executed by the terminal in the foregoing embodiment.

Optionally, the receiving unit 101 is further configured to support the supporting communication device to execute step 207 executed by the terminal in the foregoing embodiment.

All relevant content of the steps involved in the above method embodiments can be cited in the functional description of the corresponding functional module, which will not be repeated here.

In the case of using an integrated unit, FIG. 13 shows a schematic diagram of a possible logical structure of the communication device involved in the foregoing embodiment. The communication device may be a terminal or a chip in the terminal. The communication device includes: a communication module 113.

Optionally, the communication device may further include: a processing module 112.

The processing module 112 is used to control and manage the actions of the communication device. For example, the processing module 112 is used to perform message or data processing steps on the side of the communication device. The communication module 113 is used to support the steps of message/data sending or message/data receiving on the side of the communication device.

As an example, the communication module 113 is configured to support the communication device to execute step 102 and step 103 performed by the terminal in the above-mentioned embodiment.

Optionally, the communication module 113 is further configured to support the communication device to execute step 106 executed by the terminal in the foregoing embodiment. Optionally, the communication module 113 is configured to support the communication device to execute step 107 and step 109 performed by the terminal in the foregoing embodiment.

In another example, the communication module 113 is configured to support the communication device to execute step 202 executed by the terminal in the foregoing embodiment. The communication module 113 is used to support the communication device to execute step 203 executed by the terminal in the foregoing embodiment.

Optionally, the communication module 113 is further configured to support the communication device to execute step 207 executed by the terminal in the foregoing embodiment.

Optionally, the communication device may further include a storage module 111 for storing program codes and data of the terminal.

The processing module 112 may be a processor or a controller, for example, a central processing unit, a general-purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic devices, transistor logic devices, Hardware components or any combination thereof. It can implement or execute various exemplary logical blocks, modules and circuits described in conjunction with the disclosure of the present invention. The processor may also be a combination of computing functions, for example, a combination of one or more microprocessors, a combination of a digital signal processor and a microprocessor, and so on. The communication module 113 may be a transceiver, a transceiver circuit, or a communication interface. The storage module 111 may be a memory.

When the processing module 112 is the processor 41 or the processor 45, the communication module 113 is the transceiver 43, and the storage module 111 is the memory 42, the communication device involved in the embodiment of the present application may be the communication device shown in FIG.

The transceiver 43, the processor 41, the processor 45, and the memory 42 are connected to each other through a communication line 44. The communication line 44 may be a PCI bus or EISA bus or the like. The bus can be divided into address bus, data bus, control bus, etc. For ease of representation, only one thick line is used in FIG. 4 to represent it, but it does not mean that there is only one bus or one type of bus. Among them, the memory 42 is used to store program codes and data of the communication device. The transceiver 43 is used to support the communication device to communicate with other devices (for example, network equipment), and the processor 41 or the processor 45 is used to support the communication device to execute the program code and data stored in the memory 42 to implement the one provided in the embodiments of the present application. Kind of communication method.

Exemplarily, take the communication device shown in FIG. 13 as a terminal as an example.

As an example, the transceiver 43 is used to support the communication device to execute step 102 and step 103 performed by the terminal in the foregoing embodiment.

Optionally, the transceiver 43 is also configured to support the communication device to execute step 106 executed by the terminal in the foregoing embodiment. Optionally, the transceiver 43 is used to support the communication device to execute step 107 and step 109 performed by the terminal in the foregoing embodiment.

In another example, the transceiver 43 is used to support the communication device to execute step 202 executed by the terminal in the foregoing embodiment. The transceiver 43 is used to support the communication device to execute step 203 executed by the terminal in the foregoing embodiment.

Optionally, the transceiver 43 is further configured to support the supporting communication device to execute step 207 executed by the terminal in the foregoing embodiment.

It should be understood that if the communication device shown in FIG. 13 is a chip in the terminal, the steps performed by the transceiver 43 can be replaced by the communication interface of the chip in the terminal.

In the case of using an integrated unit, FIG. 14 shows a possible structural schematic diagram of the communication device involved in the foregoing embodiment. The communication device may be a network device or a chip in the network device. The communication device includes: a sending unit 201 and a receiving unit 202.

In an example, the sending unit 201 is configured to support the communication device to execute step 101 in the foregoing embodiment. The receiving unit 202 is configured to support the communication device to execute step 104 in the foregoing embodiment.

Optionally, the sending unit 201 in the embodiment of the present application is further configured to support the communication device to execute step 105 in the foregoing embodiment. The receiving unit 202 is further configured to support the communication device to execute step 108 and step 110 in the above-mentioned embodiment.

In another example, the sending unit 201 is used to support the communication device to execute step 201 in the foregoing embodiment. The receiving unit 202 is configured to support the communication device to execute step 204 in the foregoing embodiment.

Optionally, the communication device in the embodiment of the present application may further include: a processing unit 203, configured to support the communication device to execute step 205 in the foregoing embodiment.

Optionally, the sending unit 201 is further configured to support the communication device to execute step 206 in the foregoing embodiment.

In the case of using an integrated unit, FIG. 15 shows a schematic diagram of a possible logical structure of the communication device involved in the foregoing embodiment. The communication device can be a network device or a chip in the network device. The communication device includes: a communication module 213.

Optionally, the communication device may further include a processing module 212.

Wherein, the processing module 212 is used to control and manage the actions of the communication device. For example, the processing module 212 is used to support the communication device to perform message or data processing operations on the communication device side in the foregoing embodiment. The communication module 213 is configured to support the communication device to perform the operations of sending and receiving messages or data on the communication device side in the foregoing embodiment.

For example, as an example, the communication module 213 is used to support the communication device to execute step 101 in the foregoing embodiment. The receiving unit 202 is configured to support the communication device to execute step 104 in the foregoing embodiment.

Optionally, the communication module 213 in the embodiment of the present application is also used to support the communication device to execute step 105 in the foregoing embodiment. The communication module 213 is also used to support the communication device to execute step 108 and step 110 in the foregoing embodiment.

In another example, the communication module 213 is used to support the communication device to perform step 201 in the foregoing embodiment. The communication module 213 is used to support the communication device to execute step 204 in the foregoing embodiment.

Optionally, the communication device in the embodiment of the present application may further include: a processing module 212, configured to support the communication device to perform step 205 in the foregoing embodiment.

Optionally, the communication module 213 is further configured to support the communication device to perform step 206 in the foregoing embodiment.

Optionally, the communication device shown in FIG. 15 may further include a storage module 211 for storing program codes and data of the communication device.

The processing module 212 may be a processor or a controller, for example, a central processing unit, a general-purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic devices, transistor logic devices, Hardware components or any combination thereof. It can implement or execute various exemplary logical blocks, modules and circuits described in conjunction with the disclosure of the present invention. The processor may also be a combination of computing functions, for example, a combination of one or more microprocessors, a combination of a digital signal processor and a microprocessor, and so on. The communication module 213 may be a transceiver, a transceiver circuit, or a communication interface. The storage module 211 may be a memory.

When the processing module 212 is the processor 41 or the processor 45, the communication module 213 is the transceiver 43, and the storage module 211 is the memory 42, the network device involved in the embodiment of the present application may be the communication device shown in FIG. 4.

For example, as an example, the transceiver 43 is used to support the communication device to perform step 101 in the foregoing embodiment. The transceiver 43 is used to support the communication device to execute step 104 in the foregoing embodiment.

Optionally, the transceiver 43 in the embodiment of the present application is also used to support the communication device to execute step 105 in the foregoing embodiment. The transceiver 43 is also used to support the communication device to perform step 108 and step 110 in the foregoing embodiment.

In another example, the transceiver 43 is used to support the communication device to perform step 201 in the foregoing embodiment. The transceiver 43 is used to support the communication device to perform step 204 in the foregoing embodiment.

Optionally, the communication device in the embodiment of the present application may further include: a processor 41 or a processor 45, configured to support the communication device to execute step 205 in the foregoing embodiment.

Optionally, the transceiver 43 is also used to support the communication device to perform step 206 in the foregoing embodiment.

The above receiving unit (or unit for receiving) is an interface circuit of the device for receiving signals from other devices. For example, when the device is implemented as a chip, the receiving unit is an interface circuit used by the chip to receive signals from other chips or devices. The above sending unit (or unit for sending) is an interface circuit of the device, and is used to send signals to other devices. For example, when the device is implemented as a chip, the sending unit is an interface circuit used by the chip to send signals to other chips or devices.

FIG. 16 is a schematic structural diagram of a communication device 150 provided by an embodiment of the present application. The communication device 150 includes at least one processor 1510.

Optionally, the communication device 150 provided in the embodiment of the present application may further include a communication interface 1530.

Optionally, the communication device 150 further includes a memory 1550. The memory 1550 may include a read-only memory and a random access memory, and provides operation instructions and data to the processor 1510. A part of the memory 1550 may further include non-volatile random access memory (NVRAM).

In some embodiments, the memory 1550 stores the following elements, executable modules or data structures, or their subsets, or their extended sets:

In the embodiment of the present application, the corresponding operation is executed by calling the operation instruction stored in the memory 1550 (the operation instruction may be stored in the operating system).

The communication device shown in FIG. 16 may be a network device or terminal involved in the embodiment of the present application, or a device in the network device or a device in the terminal, such as a chip, or a chip system, or a circuit structure .

One possible implementation is that the structure of the chips used by the network equipment and the terminal is similar, and different devices can use different chips to realize their respective functions.

The processor 1510 controls operations of network devices or terminals, and the processor 1510 may also be referred to as a central processing unit (CPU). The memory 1550 may include a read-only memory and a random access memory, and provides instructions and data to the processor 1510. A part of the memory 1550 may further include non-volatile random access memory (NVRAM). In a specific application, the memory 1550, the communication interface 1530, and the memory 1550 are coupled together through a bus system 1520, where the bus system 1520 may include a power bus, a control bus, and a status signal bus in addition to a data bus. However, for clarity of description, various buses are marked as the bus system 1520 in FIG. 16.

The communication interface 1530 may be an input/output interface, a pin, a circuit, or the like.

The memory 1550 may be a storage unit (for example, a register, a cache, etc.) in the chip.

The methods disclosed in the foregoing embodiments of the present application may be applied to the processor 1510 or implemented by the processor 1510. The processor 1510 may be an integrated circuit chip with signal processing capabilities. In the implementation process, the steps of the foregoing method can be completed by hardware integrated logic circuits in the processor 1510 or instructions in the form of software. The aforementioned processor 1510 may be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware Components. The methods, steps, and logical block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like. The steps of the method disclosed in the embodiments of the present application may be directly embodied as being executed and completed by a hardware decoding processor, or executed and completed by a combination of hardware and software modules in the decoding processor. The software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers. The storage medium is located in the memory 1550, and the processor 1510 reads information in the memory 1550, and completes the steps of the foregoing method in combination with its hardware.

Optionally, the communication interface 1530 is used to perform the steps of receiving and sending by the network device or terminal in the embodiments shown in FIG. 4, FIG. 5, FIG. 6, FIG. 7, FIG. 8, FIG. 9, and FIG.

The processor 1510 is configured to execute the processing steps of the network device or terminal in the embodiments shown in FIG. 4, FIG. 5, FIG. 6, FIG. 7, FIG. 8, FIG. 9, and FIG. 11.

In the foregoing embodiment, the instructions stored in the memory for execution by the processor may be implemented in the form of a computer program product. The computer program product may be written in the memory in advance, or it may be downloaded and installed in the memory in the form of software.

The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on the computer, the processes or functions according to the embodiments of the present application are generated in whole or in part. The computer can be a general-purpose computer, a dedicated computer, a computer network, or other programmable devices. Computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, computer instructions can be transmitted from a website, computer, server, or data center through a cable (such as Coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) means to transmit to another website, computer, server or data center. The computer-readable storage medium may be any available medium that can be stored by a computer or a data storage device such as a server or data center integrated with one or more available media. The usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, and a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid state disk, SSD), etc.

On the one hand, a computer storage medium is provided, and the computer-readable storage medium stores instructions, and when the instructions are executed, the terminal executes step 102, step 103, step 106, step 107, and step 109 in the embodiment.

On the one hand, a computer storage medium is provided. The computer-readable storage medium stores instructions, and when the instructions are executed, the terminal executes step 202, step 203, and step 207 in the embodiment.

In another aspect, a computer storage medium is provided. The computer-readable storage medium stores instructions. When the instructions are executed, the network device executes step 101, step 104, step 108, and step 110 in the embodiment.

In another aspect, a computer storage medium is provided, and the computer-readable storage medium stores instructions. When the instructions are executed, the network device executes step 201, step 204, step 205, and step 206 in the embodiment.

On the one hand, a computer program product containing instructions is provided. The computer program product stores instructions. When the instructions are executed, the terminal executes step 102, step 103, step 106, step 107, and step 109 in the embodiment.

On the one hand, a computer program product containing instructions is provided. The computer program product stores instructions. When the instructions are executed, the terminal executes step 202, step 203, and step 207 in the embodiment.

In another aspect, a computer program product containing instructions is provided. The computer program product stores instructions. When the instructions are executed, the network device executes step 101, step 104, step 108, and step 110 in the embodiment.

In another aspect, a computer program product containing instructions is provided. The computer program product stores instructions. When the instructions are executed, the network device executes step 201, step 204, step 205, and step 206 in the embodiment.

In one aspect, a chip is provided. The chip is used in a terminal. The chip includes at least one processor and a communication interface. The communication interface is coupled to the at least one processor. The processor is used to run computer programs or instructions to perform the steps in the embodiments. 102, step 103, step 106, step 107, and step 109.

In one aspect, a chip is provided. The chip is used in a terminal. The chip includes at least one processor and a communication interface. The communication interface is coupled to the at least one processor. The processor is used to run computer programs or instructions to perform the steps in the embodiments. 202, step 203, step 207.

In yet another aspect, a chip is provided. The chip is applied to a network device. The chip includes at least one processor and a communication interface. The communication interface is coupled to the at least one processor. The processor is used to run a computer program or instruction to execute the Step 201, step 204, step 205 and step 206 of.

In yet another aspect, a chip is provided. The chip is applied to a network device. The chip includes at least one processor and a communication interface. The communication interface is coupled to the at least one processor. The processor is used to run computer programs or instructions to execute the Step 202, step 203, step 207 of.

In addition, an embodiment of the present application also provides a communication system, which includes a terminal as shown in FIGS. 12-13 and a network device as shown in FIGS. 14-15.

A person of ordinary skill in the art may be aware that the units and algorithm steps of the examples described in combination with the embodiments disclosed herein can be implemented by electronic hardware or a combination of computer software and electronic hardware. Whether these functions are executed by hardware or software depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered as going beyond the scope of the embodiments of the present application.

Those skilled in the art can clearly understand that, for the convenience and conciseness of description, the specific working process of the above-described system, device, and unit can refer to the corresponding process in the foregoing method embodiment, which will not be repeated here.

In the several embodiments provided in the embodiments of the present application, it should be understood that the disclosed system, device, and method may be implemented in other ways. For example, the device embodiments described above are merely illustrative, for example, the division of units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components can be combined or integrated. To another system, or some features can be ignored, or not implemented. In addition, the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.

In addition, the functional units in the various embodiments of the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.

If the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium. Based on this understanding, the technical solutions of the embodiments of the present application can be embodied in the form of software products in essence or the parts that contribute to the prior art or the parts of the technical solutions, and the computer software products are stored in a storage medium. , Including several instructions to make a computer device (which can be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods in the various embodiments of the present application. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disk or optical disk and other media that can store program code .

The above are only specific implementations of the embodiments of the application, but the protection scope of the embodiments of the application is not limited thereto. Any person skilled in the art can easily think of changes within the technical scope disclosed in the embodiments of the application. Or replacement should be covered within the scope of protection of this application. Therefore, the protection scope of this application shall be subject to the protection scope of the claims.

Claims

A communication method, characterized in that it comprises:

The terminal receives the timing advance TA information from the network device during the random access process;

The terminal sends first indication information to the network device during the random access process, where the first indication information is used to indicate that the random access process is used to update the TA, and/or, The first indication information is used to request to reserve the first pre-configured uplink resource PUR.
The method according to claim 1, wherein the terminal receiving the timing advance TA information from the network device during the random access process comprises:

The terminal receives the TA information carried in the message 2 in the random access process.
The method according to claim 1 or 2, wherein the sending of the first indication information by the terminal to the network device during the random access process comprises:

The terminal sends a message 3 in the random access process to the network device, and the first indication information is carried in the message 3.
The method according to any one of claims 1-3, wherein the method further comprises:

The terminal receives second indication information from the network device, where the second indication information is used to instruct to release the first PUR.
The method according to claim 4, wherein the terminal receiving the second indication information from the network device comprises:

The terminal receives a message 4 from the network device during the random access process, and the second indication information is carried in the message 4.
The method according to any one of claims 1-5, wherein the method further comprises:

The terminal sends the retention time information of the first PUR to the network device.
A communication method, characterized in that it comprises:

The network device sends the timing advance TA information to the terminal during the random access process;

The network device receives first indication information from the terminal during the random access process, where the first indication information is used to indicate that the random access process is used to update the TA, and/or The first indication information is used to request to reserve the first pre-configured uplink resource PUR allocated to the terminal.
The method according to claim 7, wherein the network device sending the timing advance TA information to the terminal in the random access process comprises: the network device sending to the terminal the bearer in the random access process The TA information in message 2 in.
The method according to claim 8, wherein the receiving, by the network device, the first indication information from the terminal during the random access process, comprises:

The network device receives the message 3 from the terminal in the random access process, and the first indication information is carried in the message 3.
The method according to any one of claims 7-9, wherein the method further comprises:

The network device sends second instruction information to the terminal, where the second instruction information is used to instruct to release the first PUR.
The method according to claim 10, wherein the sending of the second indication information by the network device to the terminal comprises:

The network device sends a message 4 to the terminal during the random access process, and the second indication information is carried in the message 4.
The method according to any one of claims 7-11, wherein the method further comprises:

The network device receives the retention time information used to indicate the first PUR from the terminal.
A communication method, characterized in that it comprises:

The terminal in the idle state receives first indication information from the network device, where the first indication information is used to notify the release of the pre-configured uplink resource PUR allocated for the terminal;

The terminal sends a preamble sequence to the network device, where the preamble sequence is used to confirm the first indication information.
The method of claim 13, wherein the method further comprises:

Receiving, by the terminal, information about a first resource from the network device, where the first resource is used by the terminal to send the preamble sequence, and the first resource is a non-competitive resource;

The sending of the preamble sequence by the terminal to the network device includes: the terminal sending the preamble sequence to the network device on the first resource.
A communication method, characterized in that it comprises:

The network device sends first indication information to the terminal in the idle state, where the first indication information is used to notify the release of the pre-configured uplink resource PUR allocated for the terminal;

The network device receives a preamble sequence from the terminal, where the preamble sequence is used to indicate confirmation of the first indication information.
The method according to claim 15, wherein the method further comprises:

In response to the preamble sequence, the network device releases the PUR of the terminal.
The method according to claim 15 or 16, wherein the method further comprises:

Sending, by the network device, information about a first resource to the terminal, where the first resource is used by the terminal to send the preamble sequence, and the first resource is a non-competitive resource;

The network device receiving the preamble sequence from the terminal includes:

The network device receives the preamble sequence from the terminal on the first resource.
A communication device, characterized by comprising:

The receiving unit is configured to receive the timing advance TA information from the network device during the random access process;

The sending unit is configured to send first indication information to the network device during the random access process, where the first indication information is used to indicate that the random access process is used to update the TA, and/ Or, the first indication information is used to request to reserve the first pre-configured uplink resource PUR.
The apparatus according to claim 18, wherein the receiving unit is specifically configured to receive the TA information carried in the message 2 in the random access process.
The apparatus according to claim 18 or 19, wherein the sending unit is specifically configured to send a message 3 in a random access process to the network device, and the first indication information is carried in the message 3. in.
The apparatus according to any one of claims 18-20, wherein the receiving unit is further configured to receive second instruction information from the network device, and the second instruction information is used to instruct to release the The first PUR.
The apparatus according to claim 21, wherein the receiving unit is further specifically configured to receive a message 4 from the network device during the random access process, and the second indication information is carried in the Message 4.
The apparatus according to any one of claims 18-22, wherein the sending unit is further configured to send the retention time information of the first PUR to the network device.
A communication device, characterized by comprising:

The sending unit is used to send the timing advance TA information to the terminal in the random access process;

The receiving unit is configured to receive first indication information from the terminal during the random access process, where the first indication information is used to indicate that the random access process is used to update the TA, and/ Or, the first indication information is used to request to reserve the first pre-configured uplink resource PUR allocated to the terminal.
The apparatus according to claim 24, wherein the sending unit is specifically configured to send the TA information carried in the message 2 in the random access process to the terminal.
The apparatus according to claim 24 or 25, wherein the receiving unit is specifically configured to receive a message 3 from the terminal during a random access process, and the first indication information is carried in the message 3. .
The device according to any one of claims 24-26, wherein the sending unit is further configured to send second instruction information to the terminal, and the second instruction information is used to instruct to release the first PUR.
The apparatus according to claim 27, wherein the sending unit is further specifically configured to send a message 4 to the terminal during the random access process, and the second indication information is carried in the message 4. in.
The device according to any one of claims 24-28, wherein the receiving unit is further configured to receive the retention time information used to indicate the first PUR from the terminal.
A communication device, characterized by comprising:

A receiving unit, configured to receive first indication information from a network device, where the first indication information is used to notify the release of the pre-configured uplink resource PUR allocated to the communication device; the communication device is in an idle state;

The sending unit is configured to send a preamble sequence to the network device, where the preamble sequence is used to indicate confirmation of the first indication information.
The device according to claim 30, wherein the receiving unit is further configured to receive information about a first resource from the network device, and the first resource is used by the communication device to send the preamble sequence , The first resource is a non-competitive resource;

The sending unit is specifically configured to send the preamble sequence to the network device on the first resource.
A communication device, characterized by comprising:

A sending unit, configured to send first indication information to a terminal in an idle state, where the first indication information is used to notify the release of the pre-configured uplink resource PUR allocated for the terminal;

The receiving unit is configured to receive a preamble sequence from the terminal, where the preamble sequence is used to indicate confirmation of the first indication information.
The device according to claim 32, wherein the device further comprises:

The processing unit is configured to release the PUR of the terminal in response to the preamble sequence.
The apparatus according to claim 32 or 33, wherein the sending unit is further configured to send information about a first resource to the terminal, and the first resource is used by the terminal to send the preamble sequence, The first resource is a non-competitive resource; the receiving unit is specifically configured to receive a preamble sequence from the terminal on the first resource.
A computer-readable storage medium comprising instructions, when the instructions are executed, the method according to any one of claims 1-17 is executed.
A communication system, comprising: a terminal and a network device, the terminal is used to execute the method according to any one of claims 1 to 6, and the network device is used to execute any one of claims 7 to 12 The method, or, the terminal is used to execute the method according to any one of claims 13 to 14, and the network device is used to execute the method according to any one of claims 15 to 17.