CN113303002A

CN113303002A - Communication method and device

Info

Publication number: CN113303002A
Application number: CN201980088110.9A
Authority: CN
Inventors: 米翔; 李军; 铁晓磊; 罗之虎; 金哲
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2019-02-15
Filing date: 2019-02-15
Publication date: 2021-08-24
Anticipated expiration: 2039-02-15
Also published as: CN113303002B; WO2020164137A1

Abstract

A communication method and apparatus, wherein the method includes: a terminal device determines a first resource that the terminal device can use for uplink data transmission according to configuration information of an uplink resource PUR preconfigured by a network device, and the first resource includes at least one PUR , the PUR is a periodic resource; after determining the first resource, the terminal device monitors the PDCCH search space of the physical downlink control channel every first time period; the terminal device detects in the PDCCH search space The first indication information from the network device, the first indication information is used to indicate one or more of the following: indicating whether to release the PUR of the terminal device; indicating whether the PUR of the terminal device is valid; indicating reconfiguring the The PUR of the terminal device; instructs the terminal device to initiate random access.

Description

Communication method and device

Technical Field

The present application relates to the field of wireless communication technologies, and in particular, to a communication method and apparatus.

Background

Narrow-band internet of things (NB-IoT) is a network facing Machine Type Communication (MTC) and is an important network in the future communication field. At present, the technology of adding Uplink non-scheduled transmission in NB-IoT is being studied, wherein Uplink non-scheduled transmission may also be referred to as grant-free transmission or Uplink transmission in predefined resources or transmission in predefined UL resources, etc. In the uplink scheduling-free transmission technology, a base station may pre-configure uplink resources for a terminal device. When the terminal device has uplink data to be transmitted, the terminal device may directly transmit the uplink data on a Preconfigured Uplink Resource (PUR). For the uplink scheduling-free transmission technology, the terminal equipment does not need to apply for uplink transmission resources to the base station and wait for the base station to send the uplink transmission scheduling information, so that the signaling flow is reduced, and the method has the advantages of reducing power consumption delay, reducing signaling overhead and the like.

In the uplink scheduling-free transmission technology, the PUR scheduled by the base station to the terminal device is periodic. In a PUR period, when the terminal equipment has data to be sent, the terminal equipment can wake up from a sleep state and send the data in the PUR of the PUR period; when the terminal device has no data to send, the PUR in the PUR period can be skipped (skip), that is, the terminal device can be continuously in a sleep state, and the power consumption of the terminal device can be further reduced.

For various reasons, the PUR configured by the base station for the terminal device may need to be released or reconfigured, for example, the current network resources are in shortage, and resources need to be released for other terminal devices to use; or when the terminal equipment skips the PUR for multiple times, the resources can be released to avoid resource waste. If the base station releases the PUR through the paging procedure, it needs to wake up all the terminal devices on all Paging Occasions (POs) by sending a paging message, and indicate the PUR that needs to be released or reconfigured to all the terminal devices. This approach may wake up terminal devices that should not be woken up, thereby increasing the power consumption of the terminal devices. Therefore, how to reduce the power consumption of the terminal device when releasing or reconfiguring the PUR is an urgent problem to be solved.

Disclosure of Invention

An object of the embodiments of the present application is to provide a communication method and apparatus, so as to solve a problem how to reduce power consumption of a terminal device when releasing or reconfiguring a PUR.

In a first aspect, an embodiment of the present application provides a communication method, including: the method comprises the steps that a terminal device determines a first resource which can be used for uplink data transmission by the terminal device according to configuration information of uplink resource PURs (physical uplink shared channels) preconfigured by a network device, wherein the first resource comprises at least one PUR, and the PURs are periodic resources; after determining the first resource, the terminal device monitors a Physical Downlink Control Channel (PDCCH) search space every time a first duration passes; the terminal device detects first indication information from a network device in the PDCCH search space, wherein the first indication information is used for indicating one or more of the following items: indicating whether to release the PUR of the terminal equipment; indicating whether the PUR of the terminal equipment is effective or not; indicating to reconfigure the PUR of the terminal equipment; and indicating the terminal equipment to initiate random access.

By the method, the terminal equipment monitors the PDCCH search space every time the first time length passes, and can realize the periodic monitoring of the PDCCH search space. When the terminal device does not monitor the PDCCH search space, the terminal device can be in a sleep state, so that the power consumption of the terminal device can be reduced, and the terminal device can determine whether the network device releases or reconfigures the PUR in time.

In one possible design, before detecting the first indication, the method further includes: when the terminal equipment sends uplink data in a second resource, the terminal equipment monitors the PDCCH search space within a second duration after the second resource; the second resource is the last PUR in the first duration; or, when the terminal device does not send uplink data in the second resource, the terminal device monitors the PDCCH search space within a third duration after the second resource; the second resource is the last PUR in the first duration; wherein the second duration is greater than or equal to the third duration.

In the above method, when the terminal device does not transmit the uplink data in the second resource, the network device does not need to process the uplink data of the terminal device, and if the network device needs to transmit the first indication information, the network device can transmit the first indication information in a shorter time. Therefore, under the condition that the terminal device does not send uplink data in the second resource, the time for monitoring the PDCCH search space can be reduced, and the power consumption of the terminal device is reduced.

In a possible design, the first indication information is used to indicate whether to release all PURs or M PURs of the terminal device, or the first indication information is used to indicate whether all PURs or M PURs of the terminal device are valid, or the first indication information is used to reconfigure all PURs or M PURs of the terminal device, or the first indication information is used to indicate the terminal device to initiate random access, where M is an integer greater than 0.

In a possible design, when the first indication information is used to indicate that all the PURs or M PURs of the terminal device are released, the terminal device releases all the PURs or M PURs starting at the time when the first indication information is received.

In one possible design, when the first indication information is used to indicate the terminal device to initiate random access and the terminal device detects the first indication information in the PDCCH search space, the terminal device initiates random access according to the first indication information;

the terminal equipment receives second indication information from the network equipment in the random access process; or, after establishing connection with the network device through the random access process, the terminal device receives second indication information from the network device; the second indication information is used for indicating whether the PUR of the terminal device is released or not, or the second indication information is used for indicating whether the PUR of the terminal device is effective or not, or the second indication information is used for reconfiguring the PUR of the terminal device.

In one possible design, when the first indication information is used to indicate the terminal device to initiate random access, the first indication information is a PDCCH order.

In one possible design, the first duration is a duration corresponding to N PUR periods, and N is an integer greater than 0.

In one possible design, the monitoring, by the terminal device, the PDCCH search space for the narrowband physical downlink control channel every time the first duration elapses includes: when the terminal equipment receives third indication information from the network equipment, starting a counter, and setting the initial value of the counter to be 1; the third indication information is used for configuring at least one PUR for the terminal equipment; and adding 1 to the count value of the counter every time a PUR period passes, and monitoring the PDCCH search space by the terminal equipment when the count value of the counter is N.

In one possible design, when a first preset condition is met, the terminal device resets the value of the counter to 1;

the first preset condition comprises one or more of the following: the count value of the counter is N; the terminal equipment sends uplink data; and the terminal equipment receives fourth indication information from the network equipment, wherein the fourth indication information is used for indicating that all the PURs or K PURs of the terminal equipment are effective, and K is an integer greater than 0.

In one possible design, when the terminal device detects the first indication information in the PDCCH search space, the terminal device sends an acknowledgement message to the network device.

In one possible design, when the terminal device does not detect the first indication information in the PDCCH search space, the terminal device determines that all PURs of the terminal device continue to be valid.

In a second aspect, an embodiment of the present application provides a communication apparatus, which includes a processor coupled with a memory, wherein: the memory is used for storing instructions; the processor is configured to execute the method according to the first aspect or any one of the possible designs of the first aspect, in accordance with instructions stored by the execution memory. Optionally, the communication device may further include the memory. Optionally, the communication device may further include a transceiver for supporting the communication device to perform information transmission and/or reception in the above method. Optionally, the communication device may be a terminal device, or may be a device in the terminal device, such as a chip or a chip system, where the chip system includes at least one chip, and the chip system may further include other circuit structures and/or discrete devices.

In a third aspect, an embodiment of the present application provides a communication apparatus, configured to implement any one of the above first aspect or the first aspect, where the communication apparatus includes corresponding functional modules, for example, a processing unit, a transceiver unit, and the like, that are respectively configured to implement the steps in the above method.

In a fourth aspect, a method of communication, comprising: the method comprises the steps that network equipment determines first resources for terminal equipment, wherein the first resources comprise at least one pre-configured uplink resource PUR, and the PUR is periodic resources; after the network equipment determines the first resource, the network equipment determines first indication information every time a first duration elapses; the first indication information is used for indicating one or more of the following items: indicating whether to release the PUR of the terminal equipment; indicating whether the PUR of the terminal equipment is effective or not; indicating to reconfigure the PUR of the terminal equipment; instructing the terminal equipment to initiate random access; and the network equipment sends the first indication information in a Physical Downlink Control Channel (PDCCH) search space.

By the method, the network equipment sends the first indication information every time the first duration passes, and the periodic PUR release or reconfiguration can be indicated to the terminal equipment. When the terminal device does not monitor the PDCCH search space, the terminal device can be in a sleep state, so that the power consumption of the terminal device can be reduced, and the terminal device can determine whether the network device releases or reconfigures the PUR in time.

In one possible design, when the first indication information is used to indicate the terminal device to initiate random access, the method further includes: the network equipment sends second indication information to the terminal equipment in the random access process; or after establishing connection with the terminal device through the random access process, the network device sends the second indication information to the terminal device; the second indication information is used for indicating whether the PUR of the terminal device is released or not, or the second indication information is used for indicating whether the PUR of the terminal device is effective or not, or the second indication information is used for reconfiguring the PUR of the terminal device.

In one possible design, the determining, by the network device, first indication information every time the first duration elapses includes:

when the network equipment sends third indication information to the terminal equipment, starting a counter, and setting the initial value of the counter to be 1; the third indication information is used for configuring at least one PUR for the terminal equipment; and adding 1 to the count value of the counter every time a PUR period passes, and when the count value of the counter is N, the network equipment determines first indication information.

In one possible design, when a second preset condition is met, the network device resets the counter to a value of 1;

the second preset condition comprises one or more of the following: the count value of the counter is N; receiving uplink data from the terminal equipment; and the network equipment sends fourth indication information to the terminal equipment, wherein the fourth indication information is used for indicating that all PURs or K PURs of the terminal equipment are effective, and K is an integer greater than 0.

In a fifth aspect, an embodiment of the present application provides a communication apparatus, which includes a processor coupled with a memory, wherein: the memory is used for storing instructions; the processor is configured to execute the method of the fourth aspect or any of the possible designs of the fourth aspect, in accordance with instructions stored by the execution memory. Optionally, the communication device may further include the memory. Optionally, the communication device may further include a transceiver for supporting the communication device to perform information transmission and/or reception in the above method. Optionally, the communication device may be a network device, or may be a device in a network device, such as a chip or a chip system, where the chip system includes at least one chip, and the chip system may further include other circuit structures and/or discrete devices.

In a sixth aspect, an embodiment of the present application provides a communication apparatus, configured to implement any one of the above fourth aspect or fourth aspect, where the communication apparatus includes corresponding functional modules, for example, a processing unit, a transceiver unit, and the like, that are respectively configured to implement the steps in the above method.

Embodiments of the present application provide a computer-readable storage medium, which stores computer-readable instructions, and when the computer-readable instructions are read and executed by a computer, the computer-readable instructions cause a communication device to perform the method in any one of the above possible designs.

Embodiments of the present application provide a computer program product, which when read and executed by a computer, causes the communication apparatus to perform the method of any one of the above possible designs.

The embodiment of the present application provides a chip, where the chip is connected to a memory, and is used to read and execute a software program stored in the memory, so as to implement the method in any one of the above possible designs.

Drawings

Fig. 1 is a schematic diagram of a communication system suitable for use in the communication method of the embodiment of the present application;

fig. 2 is a schematic flowchart of a communication method according to an embodiment of the present application;

fig. 3 is a schematic communication timing diagram according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of a communication device according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of a communication device according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of a communication device according to an embodiment of the present application;

fig. 7 is a schematic structural diagram of a communication device according to an embodiment of the present application.

Detailed Description

Embodiments of the present application will be described in further detail below with reference to the accompanying drawings.

The embodiment of the application can be applied to various mobile communication systems, such as: other communication systems, such as a New Radio (NR) system, a global system for mobile communication (GSM) system, a Code Division Multiple Access (CDMA) system, a Wideband Code Division Multiple Access (WCDMA) system, a Long Term Evolution (LTE) system, and an advanced long term evolution (LTE-a) system, are not limited herein.

For the convenience of understanding the embodiments of the present application, a communication system applicable to the embodiments of the present application will be first described in detail by taking the communication system shown in fig. 1 as an example. Fig. 1 shows a schematic diagram of a communication system suitable for the communication method of the embodiment of the present application. As shown in fig. 1, a network device and terminal devices 1 to 6 constitute a communication system. In this communication system, the terminal devices 1 to 6 may transmit uplink data to the network device, and the network device may also transmit downlink data to the terminal devices 1 to 6. In addition, the terminal devices 4 to 6 may also form a communication system, and in this case, in the communication system, the network device may send downlink data of the terminal devices 4 and 6 to the terminal device 5, and the terminal device 5 forwards the downlink data to the terminal devices 4 and 6.

Specifically, the terminal device in the embodiment of the present application provides voice and/or data connectivity to a user, and is a device having a wireless transceiving function or a chip that can be disposed on the device. The terminal device may communicate with one or more core networks via a Radio Access Network (RAN). The terminal device may be a mobile phone (mobile phone), a tablet computer (Pad), a computer with a wireless transceiving function, a Personal Digital Assistant (PDA), a Virtual Reality (VR) terminal, an Augmented Reality (AR) terminal, a wireless terminal in industrial control (industrial control), a wireless terminal in self driving (self driving), a wireless terminal in remote medical (remote medical), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation safety (transportation safety), a wireless terminal in city (smart city), a wireless terminal in smart home (smart home), and so on. The embodiments of the present application do not limit the application scenarios. The terminal device and the chip that can be installed in the terminal device are collectively referred to as a terminal device in this application. The terminal device in this embodiment may also be referred to as a User Equipment (UE), a user terminal (user terminal), an access terminal (access terminal), a subscriber unit, a subscriber station, a mobile station (mobile station), a mobile station (mobile), a remote station (remote station), a remote terminal (remote terminal), a mobile device, a wireless communication device, a user agent, or a user equipment.

The network device, which is a device with wireless transceiving function or a chip provided in the device, can be used to convert the received air frame and IP packet into each other, as a router between the terminal device and the rest of the access network, and can also be used to coordinate the attribute management of the air interface. Such devices include, but are not limited to: an evolved Node B (eNB), a Radio Network Controller (RNC), a Node B (NB), a Base Station Controller (BSC), a Base Transceiver Station (BTS), a home base station (e.g., home evolved Node B, or home Node B, HNB), a baseband unit (BBU), an Access Point (AP) in a wireless fidelity (WIFI) system, a wireless relay Node, a wireless backhaul Node, a transmission point (TRP or transmission point, TP) in a 5G (nr) system, a gbb or transmission point (TRP or TP) in a 5G (nr) system, an antenna panel(s) of a base station in a 5G system, or a group of panels including multiple antennas, etc.

In order to solve the problem to be solved by the present application, an embodiment of the present application provides a method for monitoring a Physical Downlink Control Channel (PDCCH) search space (search space), which will be described in detail below.

It should be noted that "monitoring the PDCCH search space" may also be described in other manners, for example, it may be referred to as "monitoring the PDCCH", or "monitoring PDCCH candidate (candidate) set", etc., where the above expressions all refer to the same meaning, and for convenience of description, all are collectively referred to as "monitoring the PDCCH search space" in the embodiments of the present application.

Correspondingly, the PDCCH may also be referred to as a "Narrowband Physical Downlink Control Channel (NPDCCH)", and for convenience of description, the PDCCH or the NPDCCH is collectively referred to as the "PDCCH" in this embodiment of the present application.

The network architecture and the service scenario described in the embodiment of the present application are for more clearly illustrating the technical solution of the embodiment of the present application, and do not form a limitation on the technical solution provided in the embodiment of the present application, and as a person of ordinary skill in the art knows that along with the evolution of the network architecture and the appearance of a new service scenario, the technical solution provided in the embodiment of the present application is also applicable to similar technical problems.

Some scenarios in the embodiment of the present application are described by taking a scenario of an NB-IoT network in a wireless communication network as an example, it should be noted that the scheme in the embodiment of the present application may also be applied to other wireless communication networks, and corresponding names may also be replaced with names of corresponding functions in other wireless communication networks.

In conjunction with the foregoing description, as shown in fig. 2, a flow chart of a communication method provided in the embodiment of the present application is shown. Referring to fig. 2, the method includes:

step 201: and the terminal equipment determines a first resource which can be used for uplink data transmission by the terminal equipment according to the configuration information of the PUR.

The first resource comprises at least one PUR, the PURs are periodic resources, one PUR corresponds to one PUR period, and each PUR period comprises one PUR. For example, at least one PUR included in the first resource may be as shown in fig. 3.

Step 202: after the terminal device determines the first resource, monitoring a PDCCH search space every time a first duration elapses, and detecting first indication information from a network device in the PDCCH search space.

Wherein the first indication information is used for indicating one or more of the following items: indicating whether to release the PUR of the terminal equipment; indicating whether the PUR of the terminal equipment is effective or not; indicating to reconfigure the PUR of the terminal equipment; and indicating the terminal equipment to initiate random access.

In a possible implementation manner, the first indication information is used to indicate whether to release all PURs or M PURs of the terminal device, where M is an integer greater than 0.

For example, the terminal device and the network device may agree in advance, and when the value of the first indication information is the first value, it indicates that all the PURs or M PURs of the terminal device are released; when the value of the first indication information is the second value, it indicates that all the PURs or M PURs of the terminal device are not released, i.e., that all the PURs or M PURs of the terminal device are valid.

For example, the first indication information is used to indicate that, when releasing the M PURs of the terminal device, the M PURs after the time when the terminal device receives the first indication information are released, and at this time, after receiving the first indication information, the terminal device does not use the M PURs after the first indication information.

In a possible implementation manner, the first indication information is used to indicate whether all PURs or M PURs of the terminal device are valid. For example, the terminal device and the network device may agree in advance, and when the value of the first indication information is the third value, it indicates that all the PURs or M PURs of the terminal device are valid; and when the value of the first indication information is the second value, indicating that all the PURs or M PURs of the terminal device are invalid, namely indicating that all the PURs or M PURs of the terminal device are released.

For example, when the first indication information indicates that M PURs of the terminal device are valid, the first indication information indicates that M PURs after the terminal device receives the first indication information are valid, and at this time, after receiving the first indication information, the terminal device may use M PURs after the first indication information, but the terminal device cannot use the PURs starting from the M +1 th PUR.

In a possible implementation manner, the first indication information is used to reconfigure all the PURs or M PURs of the terminal device. How to reconfigure all the PURs or M PURs of the terminal device is not limited herein. When the first indication information is used to reconfigure the M PURs of the terminal device, the M PURs may refer to M PURs after the terminal device receives the first indication information.

In a possible implementation manner, the first indication information is used to indicate the terminal device to initiate random access. For example, when the first indication information is used to indicate that the terminal device initiates random access, the first indication information may be a PDCCH order (order).

When the first indication information is used to indicate the terminal device to initiate random access, if the terminal device detects the first indication information in the PDCCH search space, the terminal device may initiate random access according to the first indication information.

In a first implementation manner, the terminal device may receive second indication information from the network device in the random access process; the second indication information is used for indicating whether the PUR of the terminal device is released or not, or the second indication information is used for indicating whether the PUR of the terminal device is effective or not, or the second indication information is used for reconfiguring the PUR of the terminal device.

In a second implementation manner, after the terminal device may establish a connection with the network device through the random access procedure, the terminal device receives second indication information from the network device.

Step 203: the network device determines a first resource for the terminal device.

The first resource comprises at least one pre-configured uplink resource PUR, and the PUR is a periodic resource.

Step 204: after the network device determines the first resource, the network device determines first indication information every time a first duration elapses, and sends the first indication information in a PDCCH search space.

In step 201, the configuration information of the PUR may be sent by the network device through a Radio Resource Control (RRC) message, or may be notified to the terminal device through other manners, which is not limited in this embodiment of the present application.

The configuration information of the PUR may indicate the number of resources included in the first resource, occupied bandwidth, and the like, and the specific content of the configuration information of the PUR is not limited in the embodiments of the present application, and is not described herein again.

In step 202, the first duration may be a duration corresponding to N PUR periods, where each PUR period includes one PUR, and N is an integer greater than 0. N may be a value configured by the network device, or may also be a value agreed by the network device and the terminal device, which is not limited in this embodiment of the present application.

As described above, since the first duration may be a duration corresponding to N PUR periods, in this embodiment of the application, the terminal device may start a counter when receiving the third indication information from the network device, and set an initial value of the counter to be 1; and adding 1 to the count value of the counter every time a PUR period passes, and when the count value of the counter is N, no matter whether the terminal equipment sends uplink data on a second resource or not, monitoring the PDCCH search space by the terminal equipment. Wherein the second resource is a last PUR in the first duration. And the third indication information is used for configuring at least one PUR for the terminal equipment. In a possible implementation manner, the third indication information may be configuration information of the PUR in step 201.

For example, in one possible implementation manner, in the counting process of the counter, when the terminal device determines that the first preset condition is met, the counter may be reset to 1. By the method, the frequency of monitoring the PDCCH search space by the terminal equipment can be reduced, so that the power consumption of the terminal equipment is further reduced.

In a possible implementation manner, the first preset condition is any one of the following items, or a combination of at least one of the following items:

under the condition one, the count value of the counter is N; when the count value of the counter is N, it indicates that the terminal device has skipped over at least N PURs and has not transmitted data, and at this time, the terminal device may monitor the PDCCH search space, thereby determining whether the uplink resource preconfigured by the network device for the terminal device is still valid.

Secondly, the terminal equipment sends uplink data; illustratively, the terminal device sends uplink data through a PUR in the first resource. According to the prior art, after the terminal device sends uplink data, the terminal device needs to monitor a PDCCH search space so as to detect whether the network device sends an acknowledgement (acknowledge) message of the uplink data in the PDCCH search space, so that after the terminal device sends the uplink data, the terminal device can reset a counter to an initial value of 1, thereby reducing the frequency of the terminal device monitoring the PDCCH search space and reducing the power consumption of the terminal device.

And under the third condition, the terminal device receives fourth indication information from the network device, where the fourth indication information is used to indicate that all PURs or K PURs of the terminal device are valid, and K is an integer greater than 0. For example, after the terminal device sends uplink data in one PUR, the network device may feed back the fourth indication information when receiving the uplink data. The terminal device can determine that all the PURs or K PURs of the terminal device are still valid according to the fourth indication information, so that the PDCCH search space does not need to be monitored in the current counting period of the counter, the counter can be reset to an initial value 1, the frequency of monitoring the PDCCH search space by the terminal device is reduced, and the power consumption of the terminal device is reduced.

Of course, the above is only an example, and the first preset condition may also include other conditions, which are not illustrated one by one here.

In the embodiment of the application, each time the first duration passes, the terminal device starts to monitor the PDCCH search space at the end time of the first duration. When the terminal device determines the first time length through the counter, the terminal device starts to monitor the PDCCH search space when the value counted by the counter is N, and the time length for monitoring the PDCCH search space may be a time length configured by the network device or a time length agreed in advance. In a possible implementation manner, when a terminal device sends uplink data in a second resource, the terminal device may monitor the PDCCH search space within a second duration after the second resource. For example, the terminal device starts a timer after sending the uplink data in the second resource, and monitors the PDCCH search space before the timer expires or stops. The timing duration of the timer is a second duration, and the second duration is a duration configured by the network equipment or a predetermined duration.

In a possible implementation manner, when the terminal device does not send uplink data in the second resource, the terminal device monitors the PDCCH search space within a third duration after the second resource. For example, the terminal device starts a timer at the second resource end time, and monitors the PDCCH search space before the timer times out or stops. The timing duration of the timer is a third duration, the third duration is also a duration configured by the network device or a predetermined duration, and the second duration may be greater than or equal to the third duration.

In a possible implementation manner, when the terminal device detects the first indication information in the PDCCH search space, the terminal device may send an acknowledgement message to the network device, where the acknowledgement message is used to indicate that the first indication information has been successfully received. By this method, the network device can determine whether the terminal device successfully receives the first indication information.

In a possible implementation manner, when the terminal device does not detect the first indication information in the PDCCH search space, the terminal device determines that all PURs of the terminal device continue to be valid. Or, in another possible implementation manner, when the terminal device does not detect the first indication information in the PDCCH search space, the terminal device determines that all PURs of the terminal device are released.

In step 203, how the network device determines the first resource for the terminal device is specific, which is not limited in this embodiment of the application and is not described herein again.

In step 204, after determining the first resource, the network device may send third indication information to the terminal device, and when sending the third indication information, the network device starts a counter and sets an initial value of the counter to 1;

and adding 1 to the count value of the counter every time a PUR period passes, and when the count value of the counter is N, the network equipment sends first indication information in a PDCCH search space.

The specific content of the first indication information may refer to the description in step 201, and is not described herein again. It should be noted that, when the first indication information is a PDCCH order, if the terminal device initiates random access according to the first indication information, in a first implementation manner, the network device may carry second indication information in a message 4 of a random access procedure, where the second indication information is used to indicate whether to release the PUR of the terminal device, or the second indication information is used to indicate whether the PUR of the terminal device is valid, or the second indication information is used to reconfigure the PUR of the terminal device. In a second implementation manner, after establishing a connection with the terminal device through random access, the network device sends second indication information to the terminal device, where the second indication information may be carried by a Radio Resource Control (RRC) message.

For example, in a possible implementation manner, when the first indication information is a PDCCH order, the network device may carry the first indication information through Downlink Control Information (DCI). The format of the DCI may be DCI format N1.

In another possible implementation manner, when the first indication information is used to indicate whether to release the PUR of the terminal device, or to indicate whether the PUR of the terminal device is valid, or to indicate to reconfigure the PUR of the terminal device, the format of the DCI carrying the first indication information may be a format other than DCI format N0 and DCI format N1 in the prior art, that is, a redesigned format. Optionally, in order not to increase the complexity of detecting the first indication information by the terminal device, the bit width of the redesigned DCI is 23 bits as in the DCI format N1. When the terminal device detects the first indication information carried by the DCI in the PDCCH search space, the terminal device may send an acknowledgement message to the network device. When the terminal device does not detect the first indication information carried by the DCI in the PDCCH search space, the terminal device may determine that all PURs of the terminal device are continuously valid or released.

In an exemplary implementation manner, in the counting process of the counter, when the network device determines that a second preset condition is met, the value of the counter is reset to 1. By the method, the frequency of sending the first indication information can be reduced, so that the resource utilization rate is improved.

In a possible implementation manner, the second preset condition is any one of the following conditions, or a combination of at least one of the following conditions:

under the condition one, the count value of the counter is N;

and secondly, the network equipment receives the uplink data from the terminal equipment.

And under the third condition, the network equipment sends fourth indication information to the terminal equipment, wherein the fourth indication information is used for indicating that all the PURs or K PURs of the terminal equipment are effective, and K is an integer greater than 0.

Of course, the above is only an example, and the second preset condition may also include other conditions, which are not illustrated one by one here.

Fig. 4 is a schematic structural diagram of a communication device according to an embodiment of the present application. The communication apparatus may be configured to perform the actions of the terminal device in the foregoing method embodiments, where the communication apparatus 400 includes: a transceiver module 401 and a processing module 402.

A processing module 402, configured to determine, according to configuration information of an uplink resource PUR preconfigured by a network device, a first resource that can be used for uplink data transmission by a terminal device, where the first resource includes at least one PUR, and the PUR is a periodic resource;

the processing module 402 is further configured to monitor a PDCCH search space through the transceiver module 401 every time a first duration elapses after the first resource is determined;

the processing module 402 detects, by the transceiver module 401, first indication information from a network device in the PDCCH search space, where the first indication information is used to indicate one or more of the following: indicating whether to release the PUR of the terminal equipment; indicating whether the PUR of the terminal equipment is effective or not; indicating to reconfigure the PUR of the terminal equipment; and indicating the terminal equipment to initiate random access.

In a possible design, the processing module 402 is further configured to, when the transceiver module 401 transmits uplink data in a second resource, monitor the PDCCH search space through the transceiver module 401 within a second duration after the second resource; the second resource is the last PUR in the first duration;

or, when the processing module 402 does not send uplink data in the second resource through the transceiver module 401, the processing module 402 monitors the PDCCH search space through the transceiver module 401 within a third duration after the second resource; the second resource is the last PUR in the first duration; wherein the second duration is greater than or equal to the third duration.

In one possible design, the processing module 402 is further configured to, when the first indication information is used to indicate that the terminal device initiates random access and the terminal device detects the first indication information in the PDCCH search space, initiate random access according to the first indication information;

the transceiver module 401 receives second indication information from the network device in the random access process; or, the transceiver module 401 receives second indication information from the network device after the processing module 402 establishes a connection with the network device through the random access procedure;

the second indication information is used for indicating whether the PUR of the terminal device is released or not, or the second indication information is used for indicating whether the PUR of the terminal device is effective or not, or the second indication information is used for reconfiguring the PUR of the terminal device.

In one possible design, the processing module 402 is specifically configured to:

when the transceiver module 401 receives the third indication information from the network device, starting a counter, and setting an initial value of the counter to 1; the third indication information is used for configuring at least one PUR for the terminal equipment;

and adding 1 to the count value of the counter every time a PUR period passes, and monitoring the PDCCH search space through the transceiver module 401 when the count value of the counter is N.

In one possible design, when a first preset condition is met, the processing module 402 resets the counter to a value of 1;

the first preset condition comprises one or more of the following:

the count value of the counter is N;

the transceiver module 401 transmits uplink data;

the transceiver module 401 receives fourth indication information from the network device, where the fourth indication information is used to indicate that all PURs or K PURs of the terminal device are valid, and K is an integer greater than 0.

In one possible design, the processing module 402 sends an acknowledgement message to the network device through the transceiving module 401 when the first indication information is detected in the PDCCH search space.

In a possible design, the processing module 402 determines, by the transceiver module 401, that all PURs of the terminal device continue to be valid when the first indication information is not detected in the PDCCH search space.

Fig. 5 is a schematic structural diagram of a terminal device according to an embodiment of the present application. The terminal device shown in fig. 5 may be a hardware circuit implementation of the communication apparatus shown in fig. 4. The terminal device may be adapted to the flowchart shown above, and execute the functions of the terminal device in the above method embodiment. For convenience of explanation, fig. 5 shows only main components of the terminal device. Optionally, the terminal device may also be a device in the terminal device, such as a chip or a chip system, where the chip system includes at least one chip, and the chip system may further include other circuit structures and/or discrete devices. As shown in fig. 5, the terminal apparatus 500 includes a processor 501, a memory 502, a transceiver 503, an antenna 504, and an input-output device 505. The processor 501 is mainly used for processing the communication protocol and the communication data, controlling the whole wireless communication device, executing the software program, processing data of the software program, for example, for supporting the wireless communication device to perform the actions described in the above method embodiments. The memory 502 is primarily used to store software programs and data. The transceiver 503 is mainly used for converting baseband signals and radio frequency signals and processing radio frequency signals. The antenna 504 is mainly used for transmitting and receiving radio frequency signals in the form of electromagnetic waves. The input/output device 505, such as a touch screen, a display screen, a keyboard, etc., is mainly used for receiving data input by a user and outputting data to the user.

A processor 501, configured to determine, according to configuration information of an uplink resource PUR preconfigured by a network device, a first resource that can be used for uplink data transmission by a terminal device, where the first resource includes at least one PUR, and the PUR is a periodic resource;

the processor 501 is further configured to monitor a PDCCH search space through the transceiver 503 every time a first duration elapses after the first resource is determined;

the processor 501 detects, by the transceiver 503, first indication information from a network device in the PDCCH search space, where the first indication information is used to indicate one or more of the following: indicating whether to release the PUR of the terminal equipment; indicating whether the PUR of the terminal equipment is effective or not; indicating to reconfigure the PUR of the terminal equipment; and indicating the terminal equipment to initiate random access.

In one possible design, the processor 501 is further configured to monitor, by the transceiver 503, the PDCCH search space for a second duration after a second resource when the transceiver 503 transmits uplink data in the second resource; the second resource is the last PUR in the first duration;

or, when the processor 501 does not send uplink data in the second resource through the transceiver 503, the processor 501 monitors the PDCCH search space through the transceiver 503 within a third duration after the second resource; the second resource is the last PUR in the first duration; wherein the second duration is greater than or equal to the third duration.

In one possible design, the processor 501 is further configured to, when the first indication information is used to indicate that the terminal device initiates random access and the first indication information is detected in the PDCCH search space, initiate random access according to the first indication information;

the transceiver 503 receives second indication information from the network device in the random access process; or, the transceiver 503 receives second indication information from the network device after the processor 501 establishes a connection with the network device through the random access procedure;

In one possible design, the processor 501 is specifically configured to:

when the transceiver 503 receives the third indication information from the network device, starting a counter, and setting an initial value of the counter to 1; the third indication information is used for configuring at least one PUR for the terminal equipment;

every time a PUR cycle passes, the count value of the counter is incremented by 1, and when the count value of the counter is N, the transceiver 503 monitors the PDCCH search space.

In one possible design, when a first preset condition is met, the processor 501 resets the counter to a value of 1;

the first preset condition comprises one or more of the following:

the count value of the counter is N;

the transceiver 503 transmits uplink data;

the transceiver 503 receives fourth indication information from the network device, where the fourth indication information is used to indicate that all PURs or K PURs of the terminal device are valid, and K is an integer greater than 0.

In one possible design, the transceiver 503 sends an acknowledgement message to the network device when the processor 501 detects the first indication information in the PDCCH search space.

In one possible design, when the processor 501 does not detect the first indication information in the PDCCH search space, the transceiver 503 determines that all PURs of the terminal device continue to be valid.

In one possible design, the processor 501 sends an acknowledgement message to the network device through the transceiver 503 when the first indication information is detected in the PDCCH search space.

In one possible design, the processor 501 determines, by the transceiver 503, that all PURs of the terminal device continue to be valid when the first indication information is not detected in the PDCCH search space.

Fig. 6 is a schematic structural diagram of a communication device according to an embodiment of the present application. The communication apparatus may be configured to perform the actions of the network device in the foregoing method embodiments, where the communication apparatus 600 includes: a transceiver module 601 and a processing module 602.

A processing module 602, configured to determine a first resource for a terminal device, where the first resource includes at least one preconfigured uplink resource PUR, and the PUR is a periodic resource; after the first resource is determined, the network equipment determines first indication information every time a first duration elapses; the first indication information is used for indicating one or more of the following items: indicating whether to release the PUR of the terminal equipment; indicating whether the PUR of the terminal equipment is effective or not; indicating to reconfigure the PUR of the terminal equipment; instructing the terminal equipment to initiate random access;

a transceiver module 601, configured to send the first indication information in a PDCCH search space.

In a possible design, the transceiver module 601 is further configured to send second indication information to the terminal device in the random access process when the first indication information is used to indicate that the terminal device initiates random access;

or, after the processing module 602 establishes a connection with the terminal device through the random access procedure, send the second indication information to the terminal device;

In one possible design, the processing module 602 is specifically configured to:

when the transceiver module 601 sends the third indication information to the terminal device, starting a counter, and setting an initial value of the counter to be 1; the third indication information is used for configuring at least one PUR for the terminal equipment;

and adding 1 to the count value of the counter every time a PUR period passes, and determining first indication information when the count value of the counter is N.

In one possible design, when a second preset condition is met, the processing module 602 resets the value of the counter to 1;

the second preset condition comprises one or more of the following:

the count value of the counter is N;

the transceiver module 601 receives uplink data from the terminal device;

the transceiver module 601 sends fourth indication information to the terminal device, where the fourth indication information is used to indicate that all PURs or K PURs of the terminal device are valid, and K is an integer greater than 0.

Fig. 7 is a schematic structural diagram of a network device according to an embodiment of the present application. The communication device shown in fig. 7 may be a hardware circuit implementation of the communication device shown in fig. 6. The communication device may be adapted to the flowchart shown in fig. 2 to perform the functions of the network device in the above-described method embodiment. For ease of illustration, fig. 7 shows only the main components of the communication device. Optionally, the communication device may be a network device, or may be a device in a network device, such as a chip or a chip system, where the chip system includes at least one chip, and the chip system may further include other circuit structures and/or discrete devices. Optionally, taking the communication apparatus as a network device as an example, as shown in fig. 7, the network device 700 includes a processor 701, a memory 702, a transceiver 703, an antenna 704, and the like.

A processor 701, configured to determine a first resource for a terminal device, where the first resource includes at least one preconfigured uplink resource PUR, and the PUR is a periodic resource; after the first resource is determined, the network equipment determines first indication information every time a first duration elapses; the first indication information is used for indicating one or more of the following items: indicating whether to release the PUR of the terminal equipment; indicating whether the PUR of the terminal equipment is effective or not; indicating to reconfigure the PUR of the terminal equipment; instructing the terminal equipment to initiate random access;

a transceiver 703, configured to send the first indication information in a PDCCH search space of a physical downlink control channel.

In a possible design, the transceiver 703 is further configured to send, when the first indication information is used to indicate that the terminal device initiates a random access, second indication information to the terminal device in the random access process;

or, after the processor 701 establishes a connection with the terminal device through the random access procedure, the second indication information is sent to the terminal device;

In one possible design, the processor 701 is specifically configured to:

when the transceiver 703 sends the third indication information to the terminal device, starting a counter, and setting an initial value of the counter to 1; the third indication information is used for configuring at least one PUR for the terminal equipment;

In one possible design, when a second preset condition is met, the processor 701 resets the value of the counter to 1;

the second preset condition comprises one or more of the following:

the count value of the counter is N;

the transceiver 703 receives uplink data from the terminal device;

the transceiver 703 sends fourth indication information to the terminal device, where the fourth indication information is used to indicate that all the PURs or K PURs of the terminal device are valid, and K is an integer greater than 0.

As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims

A method of communication, comprising:

the method comprises the steps that a terminal device determines a first resource which can be used for uplink data transmission by the terminal device according to configuration information of uplink resource PURs (physical uplink shared channels) preconfigured by a network device, wherein the first resource comprises at least one PUR, and the PURs are periodic resources;

after determining the first resource, the terminal device monitors a Physical Downlink Control Channel (PDCCH) search space every time a first duration passes;

the terminal device detects first indication information from a network device in the PDCCH search space, wherein the first indication information is used for indicating one or more of the following items: indicating whether to release the PUR of the terminal equipment; indicating whether the PUR of the terminal equipment is effective or not; indicating to reconfigure the PUR of the terminal equipment; and indicating the terminal equipment to initiate random access.
The method of claim 1, wherein prior to detecting the first indication information, the method further comprises:

when the terminal equipment sends uplink data in a second resource, the terminal equipment monitors the PDCCH search space within a second duration after the second resource; the second resource is the last PUR in the first duration;

or, when the terminal device does not send uplink data in the second resource, the terminal device monitors the PDCCH search space within a third duration after the second resource; the second resource is the last PUR in the first duration; wherein the second duration is greater than or equal to the third duration.
The method according to claim 1 or 2, wherein the first indication information is used to indicate whether all the PURs or M PURs of the terminal device are released or not, or the first indication information is used to indicate whether all the PURs or M PURs of the terminal device are valid or not, or the first indication information is used to reconfigure all the PURs or M PURs of the terminal device, or the first indication information is used to indicate that the terminal device initiates random access, and M is an integer greater than 0.
The method according to claim 3, wherein when the first indication information is used to indicate that all or M PURs of the terminal device are released, the method further comprises: and the terminal equipment releases all the PURs or M PURs starting at the moment of receiving the first indication information.
The method of claim 3, wherein when the first indication information indicates that the terminal device initiates random access and the terminal device detects the first indication information in the PDCCH search space, the method further comprises:

the terminal equipment initiates random access according to the first indication information;

the terminal equipment receives second indication information from the network equipment in the random access process;

or, after establishing connection with the network device through the random access process, the terminal device receives second indication information from the network device;

the second indication information is used for indicating whether the PUR of the terminal device is released or not, or the second indication information is used for indicating whether the PUR of the terminal device is effective or not, or the second indication information is used for reconfiguring the PUR of the terminal device.
The method according to any of claims 1 to 5, wherein when the first indication information is used to indicate the terminal device to initiate random access, the first indication information is a PDCCH order.
The method according to any of claims 1 to 6, wherein the first duration is a duration corresponding to N PUR cycles, and N is an integer greater than 0.
The method of claim 7, wherein the monitoring, by the terminal device, the PDCCH search space for the narrowband physical downlink control channel every time the first duration elapses comprises:

when the terminal equipment receives third indication information from the network equipment, starting a counter, and setting the initial value of the counter to be 1; the third indication information is used for configuring at least one PUR for the terminal equipment;

and adding 1 to the count value of the counter every time a PUR period passes, and monitoring the PDCCH search space by the terminal equipment when the count value of the counter is N.
The method according to claim 8, characterized in that when a first preset condition is met, the terminal device resets the counter to a value of 1;

the first preset condition comprises one or more of the following:

the count value of the counter is N;

the terminal equipment sends uplink data;

and the terminal equipment receives fourth indication information from the network equipment, wherein the fourth indication information is used for indicating that all the PURs or K PURs of the terminal equipment are effective, and K is an integer greater than 0.
The method of any one of claims 1 to 9, further comprising: when the terminal device detects the first indication information in the PDCCH search space, the terminal device sends a confirmation message to the network device.
The method of any one of claims 1 to 10, further comprising: when the terminal device does not detect the first indication information in the PDCCH search space, the terminal device determines that all PURs of the terminal device continue to be valid.
A method of communication, comprising:

the method comprises the steps that network equipment determines first resources for terminal equipment, wherein the first resources comprise at least one pre-configured uplink resource PUR, and the PUR is periodic resources;

after the network equipment determines the first resource, the network equipment determines first indication information every time a first duration elapses; the first indication information is used for indicating one or more of the following items: indicating whether to release the PUR of the terminal equipment; indicating whether the PUR of the terminal equipment is effective or not; indicating to reconfigure the PUR of the terminal equipment; instructing the terminal equipment to initiate random access;

and the network equipment sends the first indication information in a Physical Downlink Control Channel (PDCCH) search space.
The method according to claim 12, wherein the first indication information is used to indicate whether all the PURs or M PURs of the terminal device are released or not, or the first indication information is used to indicate whether all the PURs or M PURs of the terminal device are valid or not, or the first indication information is used to reconfigure all the PURs or M PURs of the terminal device, or the first indication information is used to indicate that the terminal device initiates random access, where M is an integer greater than 0.
The method according to claim 12, wherein when the first indication information is used to indicate the terminal device to initiate random access, the method further comprises:

the network equipment sends second indication information to the terminal equipment in the random access process;

or after establishing connection with the terminal device through the random access process, the network device sends the second indication information to the terminal device;

the second indication information is used for indicating whether the PUR of the terminal device is released or not, or the second indication information is used for indicating whether the PUR of the terminal device is effective or not, or the second indication information is used for reconfiguring the PUR of the terminal device.
The method according to any of claims 12 to 14, wherein when the first indication information is used to indicate the terminal device to initiate random access, the first indication information is a PDCCH order.
The method according to any of claims 12 to 15, wherein the first duration is a duration corresponding to N PUR periods, N being an integer greater than 0.
The method of claim 16, wherein the network device determines the first indication information every time the first duration elapses, comprising:

when the network equipment sends third indication information to the terminal equipment, starting a counter, and setting the initial value of the counter to be 1; the third indication information is used for configuring at least one PUR for the terminal equipment;

and adding 1 to the count value of the counter every time a PUR period passes, and when the count value of the counter is N, the network equipment determines first indication information.
The method of claim 17, wherein when a second preset condition is met, the network device resets the counter to a value of 1;

the second preset condition comprises one or more of the following:

the count value of the counter is N;

receiving uplink data from the terminal equipment;

and the network equipment sends fourth indication information to the terminal equipment, wherein the fourth indication information is used for indicating that all PURs or K PURs of the terminal equipment are effective, and K is an integer greater than 0.
A communications apparatus, comprising:

the terminal equipment comprises a processing module and a processing module, wherein the processing module is used for determining first resources which can be used for uplink data transmission by the terminal equipment according to configuration information of uplink resource PURs (physical uplink shared channels) preconfigured by the network equipment, and the first resources comprise at least one PUR which is periodic resources;

the processing module is further configured to monitor a PDCCH search space through the transceiver module every time a first duration passes after the first resource is determined;

the processing module detects first indication information from a network device in the PDCCH search space through the transceiving module, wherein the first indication information is used for indicating one or more of the following items: indicating whether to release the PUR of the terminal equipment; indicating whether the PUR of the terminal equipment is effective or not; indicating to reconfigure the PUR of the terminal equipment; and indicating the terminal equipment to initiate random access.
The apparatus of claim 19, wherein the processing module is further configured to monitor the PDCCH search space via the transceiver module for a second duration after a second resource when the transceiver module transmits uplink data in the second resource; the second resource is the last PUR in the first duration;

or, when the processing module does not send uplink data in the second resource through the transceiver module, the processing module monitors the PDCCH search space through the transceiver module within a third duration after the second resource; the second resource is the last PUR in the first duration; wherein the second duration is greater than or equal to the third duration.
The apparatus according to claim 19 or 20, wherein the first indication information is used to indicate whether all PURs or M PURs of the terminal device are released or not, or the first indication information is used to indicate whether all PURs or M PURs of the terminal device are valid or not, or the first indication information is used to reconfigure all PURs or M PURs of the terminal device, or the first indication information is used to indicate that the terminal device initiates random access, where M is an integer greater than 0.
The apparatus according to claim 21, wherein the first indication information is used to indicate that, when all the PURs or M PURs of the terminal device are released, the terminal device releases all the PURs or M PURs starting at a time when the first indication information is received.
The apparatus of claim 21, wherein the processing module is further configured to initiate random access according to the first indication information when the first indication information indicates that the terminal device initiates random access and the terminal device detects the first indication information in the PDCCH search space;

the transceiver module receives second indication information from the network device in the random access process; or, the transceiver module receives second indication information from the network device after the processing module establishes a connection with the network device through the random access process;

the second indication information is used for indicating whether the PUR of the terminal device is released or not, or the second indication information is used for indicating whether the PUR of the terminal device is effective or not, or the second indication information is used for reconfiguring the PUR of the terminal device.
The apparatus according to any of claims 19 to 23, wherein when the first indication information is used to indicate the terminal device to initiate random access, the first indication information is a PDCCH order.
The apparatus according to any of claims 19 to 24, wherein the first duration is a duration corresponding to N PUR periods, N being an integer greater than 0.
The apparatus of claim 25, wherein the processing module is specifically configured to:

when the transceiver module receives third indication information from the network equipment, starting a counter, and setting an initial value of the counter to be 1; the third indication information is used for configuring at least one PUR for the terminal equipment;

and adding 1 to the count value of the counter every time a PUR period passes, and monitoring the PDCCH search space through the transceiver module when the count value of the counter is N.
The apparatus of claim 26, wherein the processing module resets the counter to a value of 1 when a first preset condition is met;

the first preset condition comprises one or more of the following:

the count value of the counter is N;

the receiving and transmitting module transmits uplink data;

and the transceiver module receives fourth indication information from the network equipment, wherein the fourth indication information is used for indicating that all the PURs or K PURs of the terminal equipment are valid, and K is an integer greater than 0.
The apparatus of any of claims 19 to 27, wherein the processing module sends an acknowledgement message to the network device via the transceiving module when the first indication information is detected in the PDCCH search space.
The apparatus of any one of claims 19 to 27, wherein the processing module determines, by the transceiver module, that all PURs of the terminal device continue to be valid when the first indication information is not detected in the PDCCH search space.
A communications apparatus, comprising:

the system comprises a processing module, a resource allocation module and a resource allocation module, wherein the processing module is used for determining a first resource for terminal equipment, the first resource comprises at least one pre-configured uplink resource PUR, and the PUR is a periodic resource; after the first resource is determined, determining first indication information every time a first duration passes; the first indication information is used for indicating one or more of the following items: indicating whether to release the PUR of the terminal equipment; indicating whether the PUR of the terminal equipment is effective or not; indicating to reconfigure the PUR of the terminal equipment; instructing the terminal equipment to initiate random access;

and the transceiver module is used for transmitting the first indication information in a Physical Downlink Control Channel (PDCCH) search space.
The apparatus of claim 30, wherein the first indication information is used to indicate whether to release all PURs or M PURs of the terminal device, or the first indication information is used to indicate whether all PURs or M PURs of the terminal device are valid, or the first indication information is used to reconfigure all PURs or M PURs of the terminal device, or the first indication information is used to indicate that the terminal device initiates random access, where M is an integer greater than 0.
The apparatus of claim 30, wherein the transceiver module is further configured to send second indication information to the terminal device in the random access procedure when the first indication information is used to indicate that the terminal device initiates random access;

or after the processing module establishes connection with the terminal device through the random access process, sending the second indication information to the terminal device;

the second indication information is used for indicating whether the PUR of the terminal device is released or not, or the second indication information is used for indicating whether the PUR of the terminal device is effective or not, or the second indication information is used for reconfiguring the PUR of the terminal device.
The apparatus according to any of claims 30 to 32, wherein when the first indication information is used to indicate the terminal device to initiate random access, the first indication information is a PDCCH order.
The apparatus according to any of claims 30 to 33, wherein the first duration is a duration corresponding to N PUR periods, N being an integer greater than 0.
The apparatus of claim 30, wherein the processing module is specifically configured to:

when the transceiver module sends third indication information to the terminal equipment, starting a counter, and setting the initial value of the counter to be 1; the third indication information is used for configuring at least one PUR for the terminal equipment;

and adding 1 to the count value of the counter every time a PUR period passes, and determining first indication information when the count value of the counter is N.
The apparatus of claim 35, wherein the processing module resets the counter to a value of 1 when a second predetermined condition is satisfied;

the second preset condition comprises one or more of the following:

the count value of the counter is N;

the receiving and sending module receives uplink data from the terminal equipment;

and the transceiver module sends fourth indication information to the terminal equipment, wherein the fourth indication information is used for indicating that all PURs or K PURs of the terminal equipment are valid, and K is an integer greater than 0.