CN110944391A

CN110944391A - Communication method and device

Info

Publication number: CN110944391A
Application number: CN201811113911.XA
Authority: CN
Inventors: 张向东; 卢哲军; 庄娜
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2018-09-25
Filing date: 2018-09-25
Publication date: 2020-03-31
Also published as: WO2020063400A1

Abstract

The embodiment of the invention discloses a communication method and equipment.A communication device sends uplink data to a network device through a shared resource, and sends a resource request for applying for a special resource to the network device after receiving indication information for retransmitting the uplink data so as to retransmit the uplink data and/or newly-transmitted uplink data to the network device through the special resource, thereby improving the communication efficiency.

Description

Communication method and device

Technical Field

The embodiment of the invention relates to the technical field of communication, in particular to a communication method and equipment.

Background

The 5G New air interface (New Radio, NR) supports uplink grant free (grantfree), that is, some resources are configured in advance for the terminal to use. Therefore, after the terminal establishes connection with the base station, the terminal can directly send uplink data to the base station through the pre-configured resource when the terminal does not receive uplink scheduling of the base station, and the transmission delay of the uplink data can be reduced. However, when the base station pre-allocates the same resource to multiple terminals, although the base station can distinguish uplink data from different terminals by Demodulation Reference signals (DMRSs) of different terminals, time when multiple terminals use the pre-allocated resource may collide, which affects Signal receiving performance of the base station, increases retransmission times of the uplink data, and reduces communication efficiency.

Disclosure of Invention

The embodiment of the invention discloses a communication method and equipment, which are used for improving the communication efficiency.

In a first aspect, a communication device sends uplink data to a network device through a shared resource, receives indication information for retransmitting the uplink data, and sends a resource request for applying for a dedicated resource to the network device. Therefore, after receiving the indication information for retransmitting the uplink data, the network device may apply for a dedicated resource to retransmit the uplink data and/or newly transmitted uplink data through the dedicated resource, which may avoid multiple communication devices using the same shared resource, reduce the retransmission times of the uplink data, and thus may improve communication efficiency. The shared resource is a pre-Configured resource (Configured grant), which is a resource pre-Configured by the network device for the communication device, and one resource may be Configured to one or more communication devices. The proprietary resource is a resource dynamically allocated by the network device for the communication device, and one resource can only be configured for one communication device to use.

In an embodiment, after receiving the indication information for retransmitting the uplink data, the network device sends a resource request to the network device when a condition is met, so that a dedicated resource is not applied for the indication information for retransmitting the uplink data, and thus, resource waste can be avoided.

In an embodiment, when the uplink data is sent, a counter is started, the number of times that the indication information continues is counted by the counter, and when the number of times counted by the counter is greater than a threshold value, a resource request is sent to the network device, so that a dedicated resource can be prevented from being applied for by the indication information for retransmitting the uplink data, and resource waste can be avoided.

In an embodiment, when the uplink data is sent, a timer and a counter are started, the number of times of the indication information is counted by the counter, and when the timer reaches a first threshold value and the number of times counted by the counter is greater than a second threshold value, a resource request is sent to the network device, so that a dedicated resource can be prevented from being applied for when the indication information for retransmitting the uplink data is available, and resource waste can be avoided.

A second aspect discloses a communication method, in which a communication device transmits upstream data to a network device, determines that the upstream data is successfully transmitted, and switches from a current partial Bandwidth (BWP) to another BWP when a condition is satisfied, where the current BWP and the another BWP are different BWPs. After determining that the uplink data is successfully transmitted, the communication device is enabled to operate on another BWP, which may better meet the requirements of the service, such as the latency or bandwidth requirements of the service.

In one embodiment, when the upstream data is transmitted, a counter is started, and the number of times of successful continuous transmission of the upstream data is counted by the counter, and when the counted number of times of the counter is greater than a threshold value, the BWP is switched from the current BWP to another BWP, so that unnecessary BWP switching can be reduced.

In one embodiment, when the upstream data is transmitted, a first timer and a counter are started, and the number of times of successful upstream data transmission is counted by the counter, and when the first timer reaches a first threshold and the counted number of times of the counter is greater than a second threshold, switching from the current BWP to another BWP can reduce unnecessary BWP switching.

In one embodiment, the second timer may be set not to restart, and when the second timer completes counting, the current BWP is switched to another BWP; it is also possible to set the second timer to be an inactivity timer before switching from the current BWP to another BWP. Wherein the second timer is a BWP deactivation timer, which can avoid the restart of the BWP deactivation timer (BWP-inactivity timer).

In one embodiment, the indication information may be sent to the network device before switching from the current BWP to another BWP. The indication information may indicate that the network device is switched from the current BWP to another BWP, may indicate that the network device does not restart the BWP deactivation timer, and may also indicate that the network device does not restart the BWP deactivation timer, which may avoid restarting the BWP deactivation timer.

In one embodiment, the communication device sends upstream data to the network device via the shared resource, which embodies the switching of BWP without authorization.

In one embodiment, the other BWP may be a default BWP or an initial BWP. The default BWP is the BWP operated by the communication device after the BWP deactivation timer expires, and the initial BWP is the BWP configured by the network device for the communication device when the communication device starts to operate or is ready to start to operate.

In a third aspect, a communication method is disclosed, in which a network device receives uplink data from a communication device through a shared resource, sends first indication information for retransmitting the uplink data to the communication device, and sends information of an uplink resource to the communication device, where the uplink resource is a dedicated resource and the dedicated resource is used for retransmission. Therefore, after the first indication information for retransmitting the uplink data is sent to the communication device, the information of the dedicated resource can be sent to the communication device, so that the communication device can retransmit the uplink data and/or newly-transmitted uplink data through the dedicated resource, the condition that a plurality of communication devices use the same shared resource can be avoided, the retransmission times of the uplink data are reduced, and the communication efficiency can be improved.

In one embodiment, after the first indication information for retransmitting the uplink data is sent to the communication device, the information of the uplink resource is sent to the communication device only when the condition is met, so that the communication device can be prevented from being allocated with the exclusive resource as soon as the indication information for retransmitting the uplink data is available, and the resource waste can be avoided.

In an embodiment, when uplink data is received, a counter is started, the number of continuous sending times of the first indication information is counted by the counter, and when the number of continuous sending times counted by the counter is greater than a threshold value, information of uplink resources is sent to the communication device, so that allocation of dedicated resources to the communication device can be avoided as soon as indication information used for retransmitting the uplink data is available, and resource waste can be avoided.

In an embodiment, when the uplink data is received, a timer and a counter are started, the number of times of sending the first indication information is counted by the counter, and the information of the uplink resource is sent to the communication device only when the timer reaches a first threshold and the number of times of sending counted by the counter is greater than a second threshold, so that the situation that a dedicated resource is allocated to the communication device as soon as the indication information for retransmitting the uplink data is available can be avoided, and thus, resource waste can be avoided.

In one embodiment, information of an uplink resource is transmitted to a communication device when DMRSs of a plurality of communication devices belonging to the plurality of communication devices are detected on the shared resource. When the shared resource is pre-allocated to the plurality of communication devices and is simultaneously used by the plurality of communication devices, a dedicated resource can be allocated to the communication device, so that the communication device transmits uplink data through the dedicated resource, the communication device and other communication devices are prevented from using the same shared resource, the retransmission times of the uplink data are reduced, and the communication efficiency can be improved.

In one embodiment, after sending the first indication information for retransmitting the uplink data to the communication device, or if a condition is satisfied, or if the number of consecutive transmissions counted by the counter is greater than a threshold, or if the timer reaches a first threshold and the number of transmissions counted by the counter is greater than a second threshold, the second indication information for indicating that the communication device sends the resource request to the network device may be sent to the communication device first, and the information of the uplink resource may be sent to the communication device after receiving the resource request from the communication device.

A fourth aspect discloses a communication method in which a network device receives upstream data from a communication device, determines that the upstream data is successfully received, and transmits, to the communication device, indication information indicating that the communication device switches from a current BWP to another BWP when a condition is satisfied, the current BWP being a different BWP from the another BWP. After determining that the upstream data reception from the communication device is successful, indication information for indicating switching from the current BWP to another BWP may be sent to the communication device, so that the requirements of the service, such as latency or bandwidth, may be better met.

In one embodiment, when the upstream data is received, a counter is started, the counter counts the number of times of successful continuous reception of the upstream data, and the indication information is transmitted to the communication device only when the number of times is greater than a threshold value, so that frequent transmission of the indication information to the communication device can be avoided, and unnecessary BWP switching of the communication device can be reduced.

In one embodiment, when the uplink data is received, starting a first timer, and counting the duration of successful continuous uplink data reception by the first timer, and sending the indication information to the communication device only when the first timer is greater than a threshold value, frequent sending of the indication information to the communication device may be avoided, so as to reduce unnecessary BWP handover of the communication device.

In one embodiment, the indication information is used to indicate that the communication device switches from the current BWP to another BWP, and may indicate not to restart the second timer, or indicate to deactivate the second timer, where the second timer is a BWP deactivation timer, and the restart of the BWP deactivation timer may be avoided.

In one embodiment, the network device receives upstream data from the communication device via the shared resource, which embodies the BWP handoff in an unlicensed manner.

In one embodiment, the other BWP may be the default BWP or the initial BWP.

A fifth aspect discloses a communication device, comprising:

a transceiving unit, configured to send uplink data to a network device through a shared resource;

the transceiver unit is further configured to receive indication information for retransmitting the uplink data;

the transceiver unit is further configured to send a resource request to the network device, where the resource request is used to apply for a dedicated resource, and the dedicated resource is used to retransmit the uplink data and/or newly-transmitted uplink data.

In one embodiment, the sending, by the transceiving unit, the resource request to the network device comprises:

and when the condition is met, sending a resource request to the network equipment.

In one embodiment, the sending and receiving unit, when the condition is satisfied, sends the resource request to the network device includes:

starting a counter when the uplink data is sent;

counting the continuous times of the indication information through the counter;

and when the times are greater than a threshold value, sending a resource request to the network equipment.

when the uplink data is sent, starting a timer and a counter;

counting the times of the indication information through the counter;

and when the timer reaches a first threshold value and the times are greater than a second threshold value, sending a resource request to the network equipment.

A sixth aspect discloses a communication device, comprising:

a receiving and transmitting unit, configured to send uplink data to a network device;

the processing unit is used for determining that the uplink data sent by the transceiving unit is successfully sent;

the processing unit is further configured to switch from a current BWP to another BWP when a condition is satisfied, where the current BWP and the another BWP are different BWPs.

In one embodiment, the processing unit, when the condition is satisfied, switching from the current BWP to another BWP comprises:

starting a counter when the uplink data is sent;

counting the number of times of successful continuous transmission of the uplink data through the counter;

when the number of times is greater than a threshold, switching from the current BWP to another BWP.

when the uplink data is sent, starting a first timer and a counter;

counting the successful sending times of the uplink data through the counter;

when the first timer reaches a first threshold and the number of times is greater than a second threshold, switching from the current BWP to another BWP.

In one embodiment, the processing unit switching from the current BWP to another BWP comprises:

setting a second timer not to restart, and when the timing of the second timer is completed, switching from the current BWP to another BWP, wherein the second timer is a BWP deactivation timer; or

The second timer is set to an invalid timer and is switched from the current BWP to another BWP.

In an embodiment, the transceiving unit is further configured to send, to the network device, indication information, where the indication information is used to indicate that the network device is switched from the current BWP to another BWP, or does not restart a BWP deactivation timer.

In one embodiment, the sending and receiving unit sends uplink data to the network device, including:

and sending uplink data to the network equipment through the shared resource.

In one embodiment, the other BWP is a default BWP or an initial BWP.

A seventh aspect discloses a network device, comprising:

a transceiving unit, configured to receive uplink data from a communication device via a shared resource;

the transceiver unit is further configured to send, to the communication device, first indication information for retransmitting the uplink data;

the transceiver unit is further configured to send information of an uplink resource to the communication device, where the uplink resource is a dedicated resource, and the dedicated resource is used to retransmit the uplink data and/or newly-transmitted uplink data.

In one embodiment, the sending, by the transceiver unit, the information of the uplink resource to the communication device includes:

and when the condition is met, sending the information of the uplink resource to the communication equipment.

In one embodiment, the sending and receiving unit sends the information of the uplink resource to the communication device when the condition is satisfied, where the sending and receiving unit sends the information of the uplink resource to the communication device, where the information of the uplink resource includes:

when the uplink data is received, starting a counter;

counting the continuous sending times of the first indication information through the counter;

and when the continuous sending times are larger than a threshold value, sending the information of the uplink resources to the communication equipment.

when the uplink data is received, starting a timer and a counter;

counting the sending times of the first indication information through the counter;

and when the timer reaches a first threshold value and the sending times are greater than a second threshold value, sending the information of the uplink resources to the communication equipment.

and when the DMRS of a plurality of terminals is detected on the shared resource, transmitting information of uplink resources to the terminals, wherein the communication equipment belongs to the plurality of communication equipment.

In one embodiment, the transceiver is further configured to send second indication information to the communication device, where the second indication information is used to instruct the communication device to send a resource request to the network device;

the transceiver unit is further configured to receive a resource request from the communication device, and execute the sending of the uplink resource information to the communication device.

An eighth aspect discloses a network device, comprising:

a transceiving unit for receiving uplink data from a communication device;

the processing unit is used for determining that the uplink data received by the transceiving unit is successfully received;

the transceiving unit is further configured to send, to the communication device, indication information indicating that the communication device is to be switched from a current BWP to another BWP when a condition is satisfied, where the current BWP and the another BWP are different BWPs.

In one embodiment, the sending and receiving unit sends the indication information to the communication device when the condition is satisfied includes:

when the uplink data is received, starting a counter;

counting the number of successful continuous receiving of the uplink data through the counter;

and when the times are larger than a threshold value, sending indication information to the communication equipment.

when the uplink data is received, starting a first timer;

counting the successful continuous receiving time of the uplink data through the first timer;

when the first timer is greater than a threshold value, sending indication information to the communication equipment.

In one embodiment, the instructing information for instructing the communication device to switch from the current BWP to another BWP comprises:

the indication information is used for indicating that a second timer is not restarted or invalid, and the second timer is a BWP deactivation timer.

In one embodiment, the receiving, by the transceiver unit, the uplink data from the communication device includes:

uplink data from the communication device is received over the shared resource.

In one embodiment, the other BWP is a default BWP or an initial BWP.

A ninth aspect discloses a communication apparatus, comprising a processor, a memory and a transceiver, the transceiver is configured to transmit and receive signals, the memory is configured to store program codes, the processor is configured to execute the program codes stored by the memory, and when the processor executes the program codes stored by the memory, the processor is configured to execute the communication method disclosed by any embodiment of the first aspect or the first aspect, or any embodiment of the second aspect or the second aspect, or any embodiment of the third aspect or the third aspect, or any embodiment of the fourth aspect or the fourth aspect.

A tenth aspect discloses a storage medium having a program stored thereon, which when run implements the communication method as disclosed in the first aspect or any embodiment of the first aspect, or any embodiment of the second aspect or the second aspect, or any embodiment of the third aspect or the third aspect, or any embodiment of the fourth aspect or the fourth aspect.

Drawings

FIG. 1 is a schematic diagram of a network architecture according to an embodiment of the present invention;

fig. 2 is a flow chart of a communication method disclosed in the embodiment of the invention;

FIG. 3 is a flow chart illustrating another communication method disclosed in the embodiments of the present invention;

FIG. 4 is a flow chart illustrating another communication method disclosed in the embodiments of the present invention;

FIG. 5 is a flow chart illustrating another communication method disclosed in the embodiments of the present invention;

fig. 6 is a schematic structural diagram of a terminal disclosed in the embodiment of the present invention;

fig. 7 is a schematic structural diagram of another terminal disclosed in the embodiment of the present invention;

fig. 8 is a schematic structural diagram of a base station according to an embodiment of the present invention;

fig. 9 is a schematic structural diagram of another base station disclosed in the embodiment of the present invention;

fig. 10 is a schematic structural diagram of a communication device according to an embodiment of the present invention;

fig. 11 is a schematic structural diagram of a simplified terminal according to an embodiment of the present invention;

fig. 12 is a schematic structural diagram of another terminal disclosed in the embodiment of the present invention;

fig. 13 is a schematic structural diagram of another terminal disclosed in the embodiment of the present invention.

Detailed Description

The embodiment of the invention discloses a communication method and equipment, which are used for improving the communication efficiency. The following are detailed below.

In order to better understand a communication method and device disclosed in the embodiments of the present invention, a network architecture used in the embodiments of the present invention is described below. Referring to fig. 1, fig. 1 is a schematic diagram of a network architecture according to an embodiment of the present invention. As shown in fig. 1, the network architecture may include a terminal 1 and a base station 2, and the terminal 1 and the base station 2 are connected through a wireless network. The terminal 1 is configured to send an Uplink Control signaling to the base station 2 through a Physical Uplink Control Channel (PUCCH), and send Uplink data and/or an Uplink Control signaling to the base station through a Physical Uplink Shared Channel (PUSCH). The base station 2 is configured to receive an uplink Control signaling from the terminal 1 through a PUCCH, receive uplink data and/or an uplink Control signaling from the terminal 1 through a PUSCH, send a Downlink Control signaling to the terminal 1 through a Physical Downlink Control Channel (PDCCH), and send Downlink data and a paging message to the terminal 1 through a Physical Downlink Shared Channel (PDSCH). The terminal 1 is further configured to receive downlink control signaling from the base station 2 through the PDCCH, and receive downlink data and paging messages from the base station 2 through the PDSCH.

In order to better understand a communication method and device disclosed in the embodiments of the present invention, an application scenario used in the embodiments of the present invention is described below. In order to reduce the time delay caused by requesting a dedicated resource from the base station when the terminal has uplink data to send to the base station, the terminal may directly use a resource (i.e., a shared resource in the embodiment of the present invention) configured in advance by the base station to send the uplink data, and at the same time, the uplink data may carry a resource request for applying for the dedicated resource, so that the terminal may apply for the resource from the base station while sending the uplink data. After receiving the resource request, the base station can dynamically allocate the special resource to the terminal, thereby realizing the effective integration of time delay and communication efficiency. However, when the terminal exclusively shares the pre-configured resources, the terminal does not need to transmit a resource request to the base station because there is no collision problem. If the allocated exclusive resource is used after the resource request is sent, the resource is wasted. Therefore, under the condition of no authorization, the terminal needs not to send a resource request to the base station and when the terminal needs to send the resource request to the base station becomes a technical problem to be solved.

Referring to fig. 2 based on the network architecture shown in fig. 1, fig. 2 is a schematic flow chart of a communication method according to an embodiment of the present invention. As shown in fig. 2, the communication method may include the following steps.

201. And the terminal sends uplink data to the base station through the shared resource.

In this embodiment, when the terminal does not apply for a dedicated resource to the base station and there is a resource (i.e., a shared resource) that is pre-configured for the terminal by the base station, and when there is uplink data to be sent in the terminal, the terminal may send the uplink data to the base station through the shared resource first, so that the transmission delay of the uplink data may be reduced. The uplink data is one or more uplink data in the uplink data sent by the terminal to the base station through the shared resource.

202. And the base station sends the indication information for retransmitting the uplink data to the terminal.

In this embodiment, after receiving uplink data from the terminal through the shared resource, the base station decodes the uplink data, and when the uplink data is successfully decoded, the base station indicates that the uplink data is successfully transmitted, and does not send instruction information for retransmitting the uplink data to the terminal. And when the uplink data is not decoded successfully, indicating that the uplink data transmission fails, and sending indication information for retransmitting the uplink data to the terminal by the base station. The indication information for retransmitting the uplink data may carry a transmission sequence number of the uplink data to be retransmitted.

203. The terminal sends a resource request to the base station.

In this embodiment, after receiving the indication information for retransmitting the uplink data from the base station, the terminal may directly send a resource request to the base station. The resource request may be sent to the base station only when the condition is satisfied.

In this embodiment, the terminal may start the counter when sending the first uplink data to the base station; or when M pieces of uplink data are sent to the base station and the indication information for retransmitting the uplink data is received for all the M pieces of uplink data, starting a counter when the M +1 th piece of uplink data is sent to the base station, where M is an integer greater than 1; or the counter is started only when M uplink data in the uplink data sent to the base station receive the indication information for retransmitting the uplink data; the counter can also be started when first indication information for retransmitting the uplink data is received; the counter may be started at other times, and this embodiment is not limited. And then counting the continuous times of the indication information through a counter. After receiving an indication message, first determining whether the received indication message is continuous with the received last indication message, and when the indication message is continuous, increasing a step length by the counter, wherein the step length may be 1 or other values; then, whether the counted times of the counter is greater than a threshold value or not is continuously judged, when the counted times are greater than the threshold value, the terminal sends a resource request to the base station, and the counter can be set as an invalid counter; and when the counted times are less than or equal to the threshold value, sending the uplink data needing to be retransmitted to the base station through the shared resource, and continuing counting through the counter. When the discontinuity occurs, the counter is reset, i.e. the counter is cleared, so that the counter counts again, and then the counter is increased by one step. Or when the terminal does not receive the indication information for retransmitting the uplink data from the base station within a preset time period after transmitting the uplink data, judging whether the counted times of the counter are greater than a threshold value, when the counted times are greater than the threshold value, the terminal transmits a resource request to the base station, and the counter can be set as an invalid counter; when the counted number of times is less than or equal to the threshold value, the counter is reset. The uplink data may carry a sending sequence number of the uplink data sent by the terminal, and the indication information also carries a sending sequence number of the uplink data that needs to be retransmitted, so that the terminal determines which uplink data needs to be retransmitted and determines whether the received indication information is indication information for the uplink data that is continuously sent according to the sending sequence number carried by the indication information.

In this embodiment, the terminal may start the timer and the counter when sending the first uplink data to the base station; or when M pieces of uplink data are sent to the base station and the indication information for retransmitting the uplink data is received for all the M pieces of uplink data, starting a timer and a counter when the M +1 th piece of uplink data is sent to the base station, where M is an integer greater than 1; or the counter is started only when M uplink data in the uplink data sent to the base station receive the indication information for retransmitting the uplink data; the counter can also be started when first indication information for retransmitting the uplink data is received; the counter may be started at other times, and this embodiment is not limited. And then the timer counts the times of receiving the indication information, when the timer reaches a first threshold value, whether the counted times of the counter in a first threshold value time period counted by the timer is greater than a second threshold value is judged, and when the counted times are greater than the second threshold value, the terminal sends a resource request to the base station. When the counted number is less than or equal to the second threshold, the timer and the counter are reset, so that the timer restarts counting, and the counter restarts counting.

204. And the base station sends the information of the proprietary resource to the terminal.

In this embodiment, after receiving a resource request from a terminal, a base station allocates a dedicated resource to the terminal from unused resources, and sends information of the dedicated resource to the terminal.

205. And the terminal sends uplink data to the base station through the special resource corresponding to the information.

In this embodiment, after receiving the information of the dedicated resource from the base station, the terminal sends uplink data to the base station through the dedicated resource corresponding to the information, where the uplink data may be uplink data for retransmission and/or uplink data for new transmission.

Referring to fig. 3, fig. 3 is a schematic flow chart of another communication method according to an embodiment of the present invention based on the network architecture shown in fig. 1. As shown in fig. 3, the communication method may include the following steps.

301. And the terminal sends uplink data to the base station through the shared resource.

302. And the base station sends first indication information for retransmitting the uplink data to the terminal.

In this embodiment, after receiving uplink data from the terminal through the shared resource, the base station decodes the uplink data, and when the uplink data is successfully decoded, the base station indicates that the uplink data is successfully received, and does not send first indication information for retransmitting the uplink data to the terminal. And when the uplink data is not decoded successfully, indicating that the uplink data is received unsuccessfully, and the base station sends first indication information for retransmitting the uplink data to the terminal. The first indication information for retransmitting the uplink data may carry a transmission sequence number of the uplink data that needs to be retransmitted.

303. And the base station sends the information of the uplink resources to the terminal.

In this embodiment, before, after, or at the same time as the base station sends the first indication information for retransmitting the uplink data to the terminal, the base station may directly send information of uplink resources to the terminal, where the uplink resources are dedicated resources. The information of the uplink resource may be transmitted to the terminal only when the condition is satisfied.

In this embodiment, the base station may start the counter when receiving the first uplink data from the terminal; or when N uplink data from the terminal are received and all the N uplink data need to be retransmitted, starting a counter when N +1 th uplink data from the terminal are received, wherein N is an integer greater than 1; the counter can also be started when N uplink data in the uplink data received from the terminal need to be retransmitted and then the uplink data from the terminal are received; the counter can also be started under the condition that the first uplink data needing to be retransmitted from the terminal is determined to be received; the counter may be started at other times, and this embodiment is not limited. And then counting the continuous sending times of the first indication information through the counter. After determining that one uplink data fails to be received, judging whether the uplink data is continuous with the uplink data which fails to be received last, and increasing a step length by a counter under the condition of continuous; then, whether the continuous sending times counted by the counter is larger than a threshold value or not is continuously judged, when the counted continuous sending times is larger than the threshold value, the base station sends the information of the uplink resources to the terminal, and the counter can be set as an invalid counter; when the counted continuous sending times are less than or equal to the threshold value, continuing counting through a counter; in the case of a discontinuity, the counter is reset first, after which the counter is increased by one step. Or when determining that the uplink data is successfully received, judging whether the continuous sending times counted by the counter is greater than a threshold value, when the counted continuous sending times is greater than the threshold value, the base station sending the information of the uplink resources to the terminal, and setting the counter as an invalid counter; when the counted number of consecutive transmissions is less than or equal to the threshold, the counter is reset.

In this embodiment, the base station may start the timer and the counter when receiving the first uplink data from the terminal; or when N uplink data from the terminal are received and all the N uplink data need to be retransmitted, starting a timer and a counter when N +1 th uplink data from the terminal are received, wherein N is an integer greater than 1; the counter can also be started when N uplink data in the uplink data received from the terminal need to be retransmitted and then the uplink data from the terminal are received; the counter can also be started under the condition that the first uplink data needing to be retransmitted from the terminal is determined to be received; the counter may be started at other times, and this embodiment is not limited. And then the timer starts to time, the sending times of the first indication information are counted by the counter, when the time counted by the timer reaches a first threshold value, whether the sending times counted by the counter in a first threshold value time period counted by the timer is larger than a second threshold value is judged, and when the sending times is larger than the second threshold value, the information of the uplink resources is sent to the terminal. When the number of transmissions is less than or equal to the second threshold, the timer and the counter are reset so that the timer restarts counting and the counter restarts counting.

In this embodiment, after receiving uplink data from a terminal via a shared resource, a base station acquires a DMRS of the terminal from the uplink data, determines whether or not DMRSs of other terminals are received via the shared resource, and indicates that a plurality of terminals simultaneously use the shared resource and transmit information of the uplink resource to the terminal when determining that DMRSs other than the DMRS of the terminal are detected on the shared resource.

As a possible implementation manner, after or at the same time when the base station sends the first indication information for retransmitting the uplink data to the terminal, or when a condition is satisfied, or when the number of consecutive transmissions counted by the counter is greater than a threshold, or when the timer reaches a first threshold and the number of transmissions counted by the counter is greater than a second threshold, the base station may send first second indication information for indicating that the terminal sends a resource request to the base station, so that the terminal sends a resource request to the base station according to the second indication information, and after receiving the resource request from the terminal, the base station sends information of uplink resources to the terminal according to the resource request.

304. And the terminal sends uplink data to the base station through the uplink resource corresponding to the information.

In this embodiment, after receiving information of an uplink resource from a base station, a terminal sends uplink data to the base station through the uplink resource corresponding to the information, where the uplink resource is a dedicated resource and the dedicated resource is used to retransmit the uplink data and/or newly-transmitted uplink data.

In order to better understand a communication method and device disclosed in the embodiments of the present invention, another application scenario used in the embodiments of the present invention is described below. The current standard protocol defines a restart condition of the BWP deactivation timer under the authorization-free condition, that is, the terminal restarts the BWP deactivation timer each time the terminal uses a pre-configured resource (i.e., a shared resource) to send uplink data, where the purpose of restarting the BWP deactivation timer is to avoid switching the downlink BWP from the current BWP to the default BWP. Typically, the default BWP has a smaller bandwidth than the active BWP (i.e., the active BWP), and thus, the terminal may better conserve power consumption when operating at the default BWP. In the uplink unlicensed scenario, if the terminal has uplink data to transmit on the preconfigured resource, one reason for restarting the BWP deactivation timer may be that a Hybrid Automatic Repeat request (HARQ) of the uplink data transmitted on the preconfigured resource is implemented by monitoring a PDCCH for a corresponding HARQ process on a downlink channel, that is, after the terminal has transmitted the uplink data on the preconfigured resource, the terminal needs to monitor a PDCCH for scheduling retransmission that may come on the downlink BWP. There is a problem in that if the terminal restarts the BWP deactivation timer once transmitting uplink data on the pre-configured resource, the terminal cannot be switched to the default BWP all the time, and if there is no PDCCH scheduling retransmission on the current BWP all the time, the terminal stays on the current BWP for a long time, which is disadvantageous to the power consumption of the terminal. On the contrary, if the PDCCH is not monitored on the current BWP, the PDCCH is directly monitored on the default BWP, and if there is a PDCCH for scheduling retransmission, unnecessary BWP handover is caused. Therefore, in the uplink unlicensed scenario, the terminal needs to determine when BWP needs to be switched and is an urgent technical problem to be solved.

Referring to fig. 4, fig. 4 is a schematic flow chart of another communication method according to the embodiment of the present invention based on the network architecture shown in fig. 1. As shown in fig. 4, the communication method may include the following steps.

401. And the terminal sends uplink data to the base station.

In this embodiment, when the terminal has uplink data to be sent, the terminal may send the uplink data to the base station through the shared resource under the condition that the terminal does not apply for a dedicated resource to the base station and there is a resource (i.e., a shared resource) that is pre-configured for the terminal by the base station, so as to reduce the transmission delay of the uplink data. And under the condition that the terminal applies for the special resource to the base station, the uplink data can be sent to the base station through the special resource. The uplink data is one or more uplink data in the uplink data sent by the terminal to the base station.

402. And the terminal determines that the uplink data is successfully transmitted.

In this embodiment, after receiving the uplink data from the terminal, the base station decodes the uplink data, and when the uplink data is successfully decoded, it indicates that the uplink data is successfully transmitted, the base station does not send the indication information for retransmitting the uplink data to the terminal, and when the terminal does not receive the indication information for retransmitting the uplink data from the base station within a preset time period after sending the uplink data, it determines that the uplink data is successfully sent. And when the uplink data is not decoded successfully, indicating that the uplink data is transmitted unsuccessfully, and sending indication information for retransmitting the uplink data to the terminal. And when the terminal receives the indication information which is sent by the base station and used for retransmitting the uplink data in a preset time period after the uplink data are sent, the terminal determines that the uplink data are failed to be sent.

403. When the condition is satisfied, the terminal switches from the current BWP to another BWP.

In this embodiment, after the terminal determines that the uplink data is successfully transmitted, the terminal switches from the current BWP to another BWP when a condition is satisfied, so as to reduce unnecessary BWP switching. From the point that the current BWP is a different BWP from another BWP, the bandwidth width of the current BWP may be larger than that of another BWP, and at this time, the power consumption of the terminal may also be reduced; the bandwidth width of the current BWP may also be equal to the bandwidth width of another BWP; the bandwidth width of the current BWP may be smaller than the bandwidth width of another BWP.

In this embodiment, the terminal may start the counter when sending the first uplink data to the base station; or when M uplink data are sent to the base station and the M uplink data are all sent successfully, the counter is started when the M +1 th uplink data are sent to the base station, where M is an integer greater than 1; or the counter is started only when M uplink data in the uplink data sent to the base station receive the indication information for retransmitting the uplink data; the counter can also be started when first indication information for retransmitting the uplink data is received; the counter may be started at other times, and this embodiment is not limited. And then counting the number of times of successful continuous transmission of the uplink data through a counter. After determining that one uplink data is successfully transmitted, determining whether the uplink data is continuous with the uplink data successfully transmitted last, if so, increasing a step by a counter, and then continuing to determine whether the counted number of times of the counter is greater than a threshold, if so, switching from the current BWP to another BWP, and setting the counter as an invalid counter, and if not, continuing to count by the counter; in the case of a discontinuity, the counter is reset first, after which the counter is increased by one step. Or when receiving an indication message for retransmitting uplink data from the base station, first determining whether the counted number of times by the counter is greater than a threshold, switching from the current BWP to another BWP if the counted number of times is greater than the threshold, and setting the counter as an invalid counter, and resetting the counter if the counted number of times is less than or equal to the threshold.

In this embodiment, the terminal may start the first timer and the counter when sending the first uplink data to the base station; or when M pieces of uplink data are sent to the base station and the indication information for retransmitting the uplink data is received for all the M pieces of uplink data, starting a first timer and a counter when the M +1 th piece of uplink data is sent to the base station, where M is an integer greater than 1; or the counter is started only when M uplink data in the uplink data sent to the base station receive the indication information for retransmitting the uplink data; the counter can also be started when first indication information for retransmitting the uplink data is received; the counter may be started at other times, and this embodiment is not limited. And then, a first timer starts to time, counts the number of times of successful uplink data transmission through a counter, judges whether the counted number of times of the counter is greater than a second threshold value when the first timer reaches a first threshold value, and switches from the current BWP to another BWP under the condition that the counted number of times of the counter is greater than the second threshold value. And resetting the first timer and the counter under the condition that the counted number of times of the counter is judged to be less than or equal to the second threshold value, so that the first timer restarts timing, and the counter restarts counting.

In this embodiment, after the terminal determines that the uplink data is successfully sent, when the number of times counted by the counter is greater than the threshold, or when the first timer reaches the first threshold and the number of times counted by the counter is greater than the second threshold, the terminal may first set not to restart the second timer, and when this time counting of the second timer is completed, switch from the current BWP to another BWP; the second timer may also be set to an inactivity timer and switched from the current BWP to another BWP. Wherein the second timer is a BWP deactivation timer.

In an embodiment, after the terminal determines that the uplink data is successfully transmitted, in a case that the number of times counted by the counter is greater than a threshold, or in a case that the first timer reaches a first threshold and the number of times counted by the counter is greater than a second threshold, the terminal may transmit the indication information to the base station before switching from the current BWP to another BWP. The indication information may indicate that the base station is handed over from the current BWP to another BWP, may indicate that the base station is not to restart the BWP deactivation timer, and may also indicate that the base station is to deactivate the BWP deactivation timer.

In this embodiment, the other BWP may be a default BWP or an initial BWP. In the case where only the initial BWP is configured, the other BWP is the initial BWP. In the case where an initial BWP and a default BWP are configured, the other BWP may be the default BWP. In the case where the initial BWP and the default BWP are configured, the size of the current BWP may be compared with the default BWP and the initial BWP, and the other BWP may be the BWP with the smaller bandwidth in the initial BWP and the default BWP.

Referring to fig. 5, based on the network architecture shown in fig. 1, fig. 5 is a schematic flow chart of another communication method according to an embodiment of the present invention. As shown in fig. 5, the communication method may include the following steps.

501. And the terminal sends uplink data to the base station.

502. And the base station determines that the uplink data is successfully received.

In this embodiment, after receiving the uplink data from the terminal, the base station decodes the uplink data, and determines that the uplink data is successfully received when the uplink data is successfully decoded, and does not send the instruction information for retransmitting the uplink data to the terminal. And when the uplink data is not successfully decoded, determining that the uplink data is failed to be received, and transmitting instruction information for retransmitting the uplink data to the terminal.

503. And when the condition is met, the base station sends the indication information to the terminal.

In this embodiment, after determining that the uplink data is successfully received, the base station sends, to the terminal, indication information for indicating that the terminal is to be switched from the current BWP to another BWP when a condition is met, so that unnecessary BWP switching of the terminal can be reduced. From the point that the current BWP is a different BWP from another BWP, the bandwidth width of the current BWP may be larger than that of another BWP, and at this time, the power consumption of the terminal may also be reduced; the bandwidth width of the current BWP may also be equal to the bandwidth width of another BWP; the bandwidth width of the current BWP may be smaller than the bandwidth width of another BWP.

In this embodiment, the base station may start the counter when receiving the first uplink data from the terminal; or when N uplink data from the terminal are received and all the N uplink data need to be retransmitted, starting a counter when N +1 th uplink data from the terminal are received, wherein N is an integer greater than 1; or the counter is started only when M uplink data in the uplink data sent to the base station receive the indication information for retransmitting the uplink data; the counter can also be started when first indication information for retransmitting the uplink data is received; the counter may be started at other times, and this embodiment is not limited. And then counting the number of times of successful continuous transmission of the uplink data through a counter. When it is determined that the uplink data is successfully received, first determining whether the uplink data is continuous with the last uplink data which is successfully received, in the case of continuous, increasing a step length by a counter, and continuously determining whether the number of times of successful continuous reception of the uplink data counted by the counter is greater than a threshold, when the counted number of times is greater than the threshold, the base station sends indication information to the terminal, and sets the counter as an invalid counter, and when the counted number of times is less than or equal to the threshold, the counting is continuously performed by the counter; in the case of a discontinuity, the counter is reset first, and then incremented by one stepsize. Or when determining that the receiving of the uplink data fails, judging whether the counted times of the counter is greater than a threshold value, and when the counted times is greater than the threshold value, the base station sends indication information to the terminal and sets the counter as an invalid counter; when the counted number of times is less than or equal to the threshold value, the counter is reset.

In this embodiment, the base station may start the first timer when receiving the first uplink data from the terminal; or when N uplink data from the terminal are received and all the N uplink data need to be retransmitted, starting a first timer when N +1 th uplink data from the terminal are received, where N is an integer greater than 1; or the counter is started only when M uplink data in the uplink data sent to the base station receive the indication information for retransmitting the uplink data; the counter can also be started when first indication information for retransmitting the uplink data is received; the counter may be started at other times, and this embodiment is not limited. And then, the first timer starts to time, and the duration of successful continuous receiving of the uplink data is counted through the first timer. The indication information for indicating the terminal to switch from the current BWP to another BWP may be directly transmitted to the terminal when the counted duration is greater than the threshold, and the first timer may be set as an invalid timer. Or when it is determined that reception of one uplink data fails, determining whether the counted duration of the first timer is greater than a threshold, when the duration is greater than the threshold, the base station sends the indication information to the terminal, and may set the first timer as an invalid timer, and when the duration is less than or equal to the threshold, the first timer is reset.

504. The terminal switches from the current BWP to another BWP.

In this embodiment, after receiving indication information from the base station for indicating the terminal to switch from the current BWP to another BWP, the terminal switches from the current BWP to another BWP according to the indication information. The indication information may indicate not to restart the second timer, at this time, the terminal first sets the second timer not to restart, and when the current counting of the second timer is completed, switches from the current BWP to another BWP; it may also be an indication to invalidate the second timer, and at this time, the terminal may first set the second timer as an invalid timer and switch from the current BWP to another BWP. The second timer deactivates the timer for BWP.

Referring to fig. 6 based on the network architecture shown in fig. 1, fig. 6 is a schematic structural diagram of a terminal according to an embodiment of the present invention. As shown in fig. 6, the terminal may include:

a transceiver 601, configured to send uplink data to a base station through a shared resource;

a transceiver 601, configured to receive indication information for retransmitting the uplink data;

the transceiver 601 is further configured to send a resource request to the base station, where the resource request is used to apply for a dedicated resource, and the dedicated resource is used to retransmit the uplink data and/or newly-transmitted uplink data.

As a possible implementation, the sending, by the transceiver 601, the resource request to the base station includes:

and when the condition is met, sending a resource request to the base station.

As a possible implementation, when the condition is satisfied, the sending and receiving unit 601 sends the resource request to the base station, including:

when the uplink data is sent, starting a counter;

counting the continuous times of the indication information through a counter;

and when the counted times are greater than the threshold value, sending a resource request to the base station.

when the uplink data is sent, starting a timer and a counter;

counting the times of the indication information through the counter;

and when the timer reaches a first threshold value and the counted times are greater than a second threshold value, sending a resource request to the base station.

More detailed descriptions about the transceiver 601 can be directly obtained by referring to the related descriptions of the terminal in the embodiment of the method shown in fig. 2, which are not repeated herein.

Referring to fig. 7 based on the network architecture shown in fig. 1, fig. 7 is a schematic structural diagram of another terminal disclosed in the embodiment of the present invention. As shown in fig. 7, the terminal may include:

a transceiver unit 701, configured to send uplink data to a base station;

a processing unit 702, configured to determine that the uplink data sent by the transceiver unit 701 is successfully sent;

a processing unit 702, further configured to switch from a current BWP to another BWP when a condition is satisfied, the current BWP and the another BWP being different BWPs.

As a possible implementation, the processing unit 702, when the condition is satisfied, switching from the current BWP to another BWP includes:

when the uplink data is sent, starting a counter;

counting the number of times of successful continuous transmission of the uplink data through a counter;

and when the counted number of times is larger than the threshold value, switching from the current BWP to another BWP.

when the uplink data is sent, starting a first timer and a counter;

counting the successful sending times of the uplink data through a counter;

and when the first timer reaches a first threshold value and the counted number of times of the counter is greater than a second threshold value, switching from the current BWP to another BWP.

As a possible implementation, the switching of the processing unit 702 from the current BWP to another BWP includes:

As a possible implementation manner, the transceiving unit 701 is further configured to send, to the base station, indication information for indicating that the terminal is switched from the current BWP to another BWP, or does not restart the BWP deactivation timer.

As a possible implementation manner, the sending and receiving unit 701 sends uplink data to the base station, including:

and transmitting uplink data to the base station through the shared resource.

As a possible implementation, the other BWP is a default BWP or an initial BWP.

More detailed descriptions about the transceiver 701 and the processing unit 702 can be directly obtained by referring to the related descriptions of the terminal in the embodiment of the method shown in fig. 4, which are not repeated herein.

Referring to fig. 8, fig. 8 is a schematic structural diagram of a base station according to an embodiment of the present invention based on the network architecture shown in fig. 1. As shown in fig. 8, the base station may include:

a transceiver unit 801 configured to receive uplink data from a terminal via a shared resource;

a transceiving unit 801, configured to send first indication information for retransmitting the uplink data to the terminal;

the transceiver unit 801 is further configured to send information of an uplink resource to the terminal, where the uplink resource is a dedicated resource, and the dedicated resource is used to retransmit the uplink data and/or newly-transmitted uplink data.

As a possible implementation manner, the sending and receiving unit 801 sends the information of the uplink resource to the terminal, including:

and when the condition is met, sending the information of the uplink resource to the terminal.

As a possible implementation manner, when the condition is satisfied, the sending and receiving unit 801 sends the information of the uplink resource to the terminal, including:

when receiving the uplink data, starting a counter;

counting the continuous sending times of the first indication information through a counter;

and when the counted continuous sending times are larger than the threshold value, sending the information of the uplink resources to the terminal.

when receiving the uplink data, starting a timer and a counter;

counting the sending times of the first indication information through a counter;

and when the timer reaches a first threshold value and the counted sending times are greater than a second threshold value, sending the information of the uplink resources to the terminal.

and when the DMRS of a plurality of terminals is detected on the shared resource, transmitting the information of the uplink resource to the terminal, wherein the terminal belongs to the plurality of terminals.

As a possible implementation manner, the transceiver unit 801 is further configured to send second indication information to the terminal, where the second indication information is used to instruct the terminal to send a resource request to the base station;

the transceiver unit 801 is further configured to receive a resource request from the terminal, and execute sending information of uplink resources to the terminal.

The more detailed description about the transceiver unit 801 may be directly obtained by referring to the description about the base station in the embodiment of the method shown in fig. 3, which is not repeated herein.

Referring to fig. 9, based on the network architecture shown in fig. 1, fig. 9 is a schematic structural diagram of another base station disclosed in the embodiment of the present invention. As shown in fig. 9, the base station may include:

a transceiver 901, configured to receive uplink data from a terminal;

a processing unit 902, configured to determine that the uplink data received by the transceiver 901 is successfully received;

the transceiving unit 901 is further configured to send, to the terminal, indication information for indicating that the terminal is switched from a current BWP to another BWP, where the current BWP is different from the another BWP, when the condition is satisfied.

As a possible implementation, when the condition is satisfied, the sending and receiving unit 901 sends the indication information to the terminal, including:

when receiving the uplink data, starting a counter;

counting the number of successful continuous receiving of the uplink data through a counter;

and when the times are larger than the threshold value, sending indication information to the terminal.

when receiving the uplink data, starting a first timer;

counting the successful continuous receiving time of the uplink data through a first timer;

and when the first timer is larger than the threshold value, sending indication information to the terminal.

As a possible implementation, the instructing the terminal to switch from the current BWP to another BWP includes:

the indication information is used to indicate that the second timer, which is a BWP deactivation timer, is not to be restarted or is to be invalidated.

As a possible implementation, the receiving and sending unit 901 receives uplink data from the terminal, including:

and receiving uplink data from the terminal through the shared resource.

As a possible implementation, the other BWP is a default BWP or an initial BWP.

The more detailed description about the transceiver 901 and the processing unit 902 can be directly obtained by referring to the related description of the base station in the embodiment of the method shown in fig. 5, which is not repeated herein.

Referring to fig. 10, based on the network architecture shown in fig. 1, fig. 10 is a schematic structural diagram of a communication device according to an embodiment of the present invention. As shown in fig. 10, the communication device may include a processor 1001, a memory 1002, a transceiver 1003, and a connection 1004. The memory 1002 may be separate and the connection 1004 may be to the processor 1001. The memory 1002 may also be integrated with the processor 1001. A transceiver 1003 for communicating with other devices, network elements or communication networks, such as ethernet, Radio Access Network (RAN), WLAN-less, etc. The connection 1004 may include a path for transmitting information between the aforementioned components. The memory 1002 stores program codes, and the processor 1001 executes the program codes stored in the memory 1002. Wherein:

in one embodiment, the communication device is a terminal, and when the program instructions stored in the memory 1002 are executed, the processor 1001 is configured to control the transceiver 601 to perform the operations performed in the above embodiments, and the transceiver 1003 is configured to perform the operations performed by the transceiver 601 in the above embodiments.

In another embodiment, the communication device is a terminal, and when the program instructions stored in the memory 1002 are executed, the processor 1001 is configured to perform the operations performed by the processing unit 702 in the above embodiments, and the transceiver 1003 is configured to perform the operations performed by the transceiver unit 701 in the above embodiments.

In yet another embodiment, the communication device is a base station, and the processor 1001 is configured to control the transceiver unit 801 to perform the operations performed in the above embodiments when the program instructions stored in the memory 1002 are executed, and the transceiver 1003 is configured to perform the operations performed by the transceiver unit 801 in the above embodiments.

In yet another embodiment, the communication device is a base station, and when the program instructions stored in the memory 1002 are executed, the processor 1001 is configured to perform the operations performed by the processing unit 902 in the above embodiment, and the transceiver 1003 is configured to perform the operations performed by the transceiver unit 901 in the above embodiment.

The embodiment of the invention also discloses a communication device which can be a terminal or a base station. The communication device may be configured to perform the operations performed by the terminal or the base station in the above method embodiments.

When the communication device is a terminal, please refer to fig. 11, where fig. 11 is a schematic structural diagram of a simplified terminal according to an embodiment of the present invention. For easy understanding and convenience of illustration, in fig. 11, the terminal is exemplified by a mobile phone. As shown in fig. 11, the terminal may include a processor, a memory, a radio frequency circuit, an antenna, and an input-output device. The processor is mainly used for processing communication protocols and communication data, controlling the terminal, executing software programs, processing data of the software programs and the like. The memory is used primarily for storing software programs and data. The radio frequency circuit is mainly used for converting baseband signals and radio frequency signals and processing the radio frequency signals. The antenna is mainly used for receiving and transmitting radio frequency signals in the form of electromagnetic waves. Input and output devices, such as touch screens, display screens, keyboards, etc., are used primarily for receiving data input by a user and for outputting data to the user. It should be noted that some kinds of terminals may not have input/output devices.

When data needs to be sent, the processor performs baseband processing on the data to be sent and outputs baseband signals to the radio frequency circuit, and the radio frequency circuit performs radio frequency processing on the baseband signals and sends the radio frequency signals to the outside in the form of electromagnetic waves through the antenna. When data is sent to the terminal, the radio frequency circuit receives radio frequency signals through the antenna, converts the radio frequency signals into baseband signals and outputs the baseband signals to the processor, and the processor converts the baseband signals into the data and processes the data. For ease of illustration, only one memory and processor are shown in FIG. 11. In an actual end product, there may be one or more processors and one or more memories. The memory may also be referred to as a storage medium or a storage device, etc. The memory may be provided independently from the processor or may be integrated with the processor, which is not limited in this embodiment of the present invention.

In the embodiment of the present invention, the antenna and the rf circuit having the transceiving function may be regarded as a transceiving unit of the terminal, and the processor having the processing function may be regarded as a processing unit of the terminal. As shown in fig. 11, the terminal includes a transceiving unit 1110 and a processing unit 1120. A transceiver unit may also be referred to as a transceiver, a transceiving device, etc. A processing unit may also be referred to as a processor, a processing board, a processing module, a processing device, or the like. Optionally, a device in the transceiver 1110 for implementing a receiving function may be regarded as a receiving unit, and a device in the transceiver 1110 for implementing a transmitting function may be regarded as a transmitting unit, that is, the transceiver 1110 includes a receiving unit and a transmitting unit. A transceiver unit may also sometimes be referred to as a transceiver, transceiving circuitry, or the like. A receiving unit may also be referred to as a receiver, a receiving circuit, or the like. A transmitting unit may also sometimes be referred to as a transmitter, or a transmitting circuit, etc.

It should be understood that the transceiver 1110 is configured to perform the transmitting operation and the receiving operation on the terminal side in the above-described method embodiments, and the processing unit 1120 is configured to perform other operations on the terminal in the above-described method embodiments besides the transceiving operation.

For example, in one implementation, the transceiving unit 1110 is configured to perform the transmitting operation at the terminal side in step 201 in fig. 2, and/or the transceiving unit 1110 is further configured to perform other transceiving steps at the terminal side in the embodiment of the present invention. The processing unit 1120 is configured to perform the determining operation, and/or the processing unit 1120 is further configured to perform other processing steps at the terminal side in the embodiment of the present invention.

For another example, in another implementation manner, the transceiver 1110 is configured to perform a receiving operation at the terminal side in step 302 or a transmitting operation at the terminal side in step 301 in fig. 3, and/or the transceiver 1120 is further configured to perform other transceiving steps at the terminal side in the embodiment of the present invention.

For another example, in another implementation manner, the transceiving unit 1110 is configured to perform the transmitting operation at the terminal side in step 401 in fig. 4, and/or the transceiving unit 1110 is further configured to perform other transceiving steps at the terminal side in the embodiment of the present invention. The processing unit 1120 is configured to perform the steps 402 and 403 in fig. 4, and/or the processing unit 1120 is further configured to perform other processing steps at the terminal side in the embodiment of the present invention.

For another example, in another implementation manner, the transceiving unit 1110 is configured to perform the receiving operation at the terminal side in step 503 or the transmitting operation at the terminal side in step 501 in fig. 5, and/or the transceiving unit 1110 is further configured to perform other transceiving steps at the terminal side in the embodiment of the present invention. The processing unit 1120 is configured to perform step 504 in fig. 5, and/or the processing unit 1120 is further configured to perform other processing steps at the terminal side in the embodiment of the present invention.

When the communication device is a chip, the chip includes a transceiver unit and a processing unit. The transceiver unit can be an input/output circuit and a communication interface; the processing unit is a processor or a microprocessor or an integrated circuit integrated on the chip.

Please refer to fig. 12 when the communication device in this embodiment is a terminal, and fig. 12 is a schematic structural diagram of another terminal disclosed in this embodiment of the present invention. As an example, the device may perform functions similar to processor 1001 of FIG. 10. In fig. 12, the terminal includes a processor 1210, a transmit data processor 1220, and a receive data processor 1230. The processing unit 702 in the above embodiments may be the processor 1210 in fig. 12, and performs corresponding functions. The transceiver unit 701 in the above embodiments may be the transmit data processor 1220 and/or the receive data processor 1230 in fig. 12. Although fig. 12 shows a channel encoder and a channel decoder, it is understood that these blocks are not limitative and only illustrative to the present embodiment.

Referring to fig. 13, fig. 13 is a schematic structural diagram of another terminal according to an embodiment of the disclosure. The processing device 1300 includes modules such as a modulation subsystem, a central processing subsystem, and peripheral subsystems. The communication device in this embodiment may serve as a modulation subsystem therein. In particular, the modulation subsystem may include a processor 1303 and an interface 1304. The processor 1303 completes the functions of the processing unit 702, and the interface 1304 completes the functions of the transceiver unit 701. As another variation, the modulation subsystem includes a memory 1306, a processor 1303 and a program stored in the memory 1306 and executable on the processor, and the processor 1303 executes the program to implement the method at the terminal side in the above method embodiments. It should be noted that the memory 1306 may be non-volatile or volatile, and may be located inside the modulation subsystem or in the processing device 1300 as long as the memory 1306 can be connected to the processor 1303.

As another form of the present embodiment, there is provided a computer-readable storage medium having stored thereon instructions that, when executed, perform the method at the terminal side in the above-described method embodiments.

As another form of the present embodiment, there is provided a computer program product containing instructions that, when executed, perform the method at the terminal side in the above-described method embodiments.

The embodiment of the invention also discloses a storage medium, wherein the storage medium is stored with a program, and when the program runs, the communication method shown in the figures 2-5 is realized.

The above-mentioned embodiments, objects, technical solutions and advantages of the present invention are further described in detail, it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made on the basis of the technical solutions of the present invention should be included in the scope of the present invention.

Claims

1. A communication method, applied to a communication device, includes:

sending uplink data to the network equipment through the shared resource;

receiving indication information for retransmitting the uplink data;

and sending a resource request to the network equipment, wherein the resource request is used for applying for a special resource, and the special resource is used for retransmitting the uplink data and/or newly-transmitted uplink data.

2. The method of claim 1, wherein sending the resource request to the network device comprises:

3. The method of claim 2, wherein sending a resource request to the network device when a condition is satisfied comprises:

starting a counter when the uplink data is sent;

4. The method of claim 2, wherein sending a resource request to the network device when a condition is satisfied comprises:

when the uplink data is sent, starting a timer and a counter;

counting the times of the indication information through the counter;

5. A communication method, applied to a communication device, includes:

sending uplink data to the network equipment;

determining that the uplink data is successfully transmitted;

and when the condition is met, switching from the current partial bandwidth to another partial bandwidth, wherein the current partial bandwidth and the another partial bandwidth are different partial bandwidths.

6. The method of claim 5, wherein switching from the current portion of bandwidth to another portion of bandwidth when the condition is satisfied comprises:

starting a counter when the uplink data is sent;

and when the number of times is larger than a threshold value, switching from the current partial bandwidth to another partial bandwidth.

7. The method of claim 5, wherein switching from the current portion of bandwidth to another portion of bandwidth when the condition is satisfied comprises:

when the uplink data is sent, starting a first timer and a counter;

counting the successful sending times of the uplink data through the counter;

and when the first timer reaches a first threshold value and the times are greater than a second threshold value, switching from the current partial bandwidth to another partial bandwidth.

8. The method according to any one of claims 5-7, wherein the switching from the current portion of bandwidth to another portion of bandwidth comprises:

setting a second timer not to be restarted, and when the timing of the second timer is finished, switching from the current partial bandwidth to another partial bandwidth, wherein the second timer activates a timer for the partial bandwidth; or

And setting the second timer as an invalid timer, and switching from the current part of the bandwidth to another part of the bandwidth.

9. A communication method, applied to a network device, includes:

receiving uplink data from the communication device through the shared resource;

sending first indication information for retransmitting the uplink data to the communication equipment;

and sending information of uplink resources to the communication equipment, wherein the uplink resources are proprietary resources, and the proprietary resources are used for retransmitting the uplink data and/or newly-transmitted uplink data.

10. The method of claim 9, wherein the sending information of uplink resources to the communication device comprises:

11. The method of claim 10, wherein the sending information of uplink resources to the communication device when the condition is satisfied comprises:

when the uplink data is received, starting a counter;

12. The method of claim 10, wherein the sending information of uplink resources to the communication device when the condition is satisfied comprises:

when the uplink data is received, starting a timer and a counter;

13. The method of claim 10, wherein the sending information of uplink resources to the communication device when the condition is satisfied comprises:

and when the demodulation reference signals of a plurality of communication devices are detected on the shared resource, sending information of uplink resources to the communication devices, wherein the communication devices belong to the plurality of communication devices.

14. The method according to any one of claims 9-13, further comprising:

sending second indication information to the communication device, wherein the second indication information is used for indicating the communication device to send a resource request to the network device;

and receiving a resource request from the communication equipment, and executing the information of the uplink resource sent to the terminal.

15. A communication method, applied to a network device, includes:

receiving uplink data from the communication device;

determining that the uplink data is successfully received;

when a condition is met, sending indication information to the communication equipment, wherein the indication information is used for indicating the communication equipment to switch from a current partial bandwidth to another partial bandwidth, and the current partial bandwidth and the another partial bandwidth are different partial bandwidths.

16. The method of claim 15, wherein sending the indication information to the communication device when the condition is satisfied comprises:

when the uplink data is received, starting a counter;

17. The method of claim 15, wherein sending the indication information to the communication device when the condition is satisfied comprises:

when the uplink data is received, starting a first timer;

18. A communication device, comprising:

19. The communications device of claim 18, wherein the transceiver unit sending a resource request to the network device comprises:

20. The communications device of claim 19, wherein the transceiver unit, when the condition is satisfied, sends the resource request to the network device comprises:

starting a counter when the uplink data is sent;

21. A communication device, comprising:

the processing unit is further configured to switch from a current partial bandwidth to another partial bandwidth when a condition is met, where the current partial bandwidth and the another partial bandwidth are different partial bandwidths.

22. The communication device of claim 21, the processing unit to switch from a current portion of bandwidth to another portion of bandwidth when a condition is satisfied comprises:

starting a counter when the uplink data is sent;

23. The communication device of claim 21, the processing unit to switch from a current portion of bandwidth to another portion of bandwidth when a condition is satisfied comprises:

when the uplink data is sent, starting a first timer and a counter;

counting the successful sending times of the uplink data through the counter;

24. A network device, comprising:

25. The network device of claim 24, wherein the sending and receiving unit sends the information of the uplink resource to the communication device includes:

26. The network device of claim 25, wherein the transceiver unit, when the condition is satisfied, sends the information of the uplink resource to the communication device, and wherein the sending comprises:

when the uplink data is received, starting a counter;

27. A network device, comprising:

a transceiving unit for receiving uplink data from a communication device;

the transceiver unit is further configured to send, when a condition is met, indication information to the communication device, where the indication information is used to indicate that the communication device switches from a current partial bandwidth to another partial bandwidth, and the current partial bandwidth and the another partial bandwidth are different partial bandwidths.

28. The network device of claim 27, wherein the transceiver unit, when the condition is satisfied, sending the indication information to the communication device comprises:

when the uplink data is received, starting a counter;

29. The network device of claim 27, wherein the transceiver unit, when the condition is satisfied, sending the indication information to the communication device comprises:

when the uplink data is received, starting a first timer;

30. A storage medium, characterized in that the storage medium has stored thereon a program which, when executed, implements the communication method according to any one of claims 1 to 17.