WO2018228501A1

WO2018228501A1 - Communication method and device

Info

Publication number: WO2018228501A1
Application number: PCT/CN2018/091349
Authority: WO
Inventors: 李俊超; 唐浩; 汪凡; 唐臻飞
Original assignee: 华为技术有限公司
Priority date: 2017-06-16
Filing date: 2018-06-14
Publication date: 2018-12-20
Also published as: CN109151897B; CN109151897A

Abstract

The present application discloses a communication method and a device, for solving the problem that a terminal device feeds back a response message in the case that a part of a bandwidth used by the terminal device is switched. According to this solution, the network device notifies the terminal device to carry a first response message by using a first response message resource of which the frequency domain resource is in a first BP; the network device switches an uplink frequency domain resource of the terminal device from the first BP to a second BP; and the network device continues to notify the terminal device to carry the first response message by using a second response message source of which the frequency domain resource is in the second BP. The first response message is a response message that the terminal device feeds back to a first downlink information. Through the above solution, after the BP used by the terminal device is switched, the terminal device may determine the second response message resource of which the frequency domain resource is in the second BP after the switching. Thereby, the first response message can be fed back to the network device on the second response message resource.

Description

Communication method and device

The present application claims the priority of the Chinese Patent Application, filed on Jun. 16, s.

Technical field

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

Background technique

With the rapid development of mobile communication technologies, in mobile communication systems, there are phenomena in which the bandwidth capabilities of some terminal devices are different from the bandwidth capabilities of network devices (such as base stations) on the network side. In other words, the support of the terminal devices The maximum bandwidth (e.g., 5 megahertz (MHz)) is less than the frequency domain width (20 MHz) of the system bandwidth supported by the network device. The bandwidth capability of the terminal device is the capability of the maximum transmission bandwidth that the terminal device can support, and the maximum bandwidth is a specific performance of the bandwidth capability of the terminal device.

In the mobile communication system, the terminal device may report the bandwidth capability of the terminal device to the network device when initially accessing the network device. The network device can implement communication with the terminal device by the following steps:

The network device configures P bandwidth parts (BPs) for the terminal device, wherein each BP specifies a frequency domain location (from X MHz to Y MHz) and a frequency domain width ((YX) of the BP MHz), and the frequency domain width of each BP is less than the maximum bandwidth; wherein P is an integer greater than 0;

The network device, in the BP, selects, for the terminal device, that Q target BPs are to be used, and notifies the target device to the terminal device; where Q is an integer greater than 0 and less than or equal to P;

The network device performs resource allocation for the terminal device in the target BP, and implements data transmission between the network device and the terminal device based on the allocated resources.

Each BP is a continuous frequency domain resource. For example, a BP may contain consecutive or non-contiguous K subcarriers, or frequency domain resources containing non-overlapping consecutive or non-contiguous M resource blocks (RBs), or non-overlapping contiguous or non-overlapping The frequency domain resources in which the consecutive N resource block groups (RBGs) are located; K, M, and N are integers greater than 0.

In the mobile communication system supporting the Hybrid Automatic Repeat ReQuest (HARQ) technology, the network device uses the BP1 to send downlink information to the terminal device (including the physical downlink shared channel (Physical Downlink Shared Channel). The downlink data of the PDSCH is carried in the Physical Downlink Control Channel (PDCCH) (DCI, etc.), and the response of the terminal equipment to the downlink information feedback is received by the BP2 (Acknowledgement/Negative Acknowledgement, ACK/ NACK), that is, the terminal device uses BP2 to feed back the downlink information to obtain a response response.

However, in the mobile communication system, after the downlink information is sent by the network device, before the terminal device sends a response, the BP may switch, for example, the network device indicates the uplink used by the terminal device. The frequency domain resources are switched from BP2 to BP3. In this case, how the terminal device feeds back the response response is an urgent problem to be solved.

Summary of the invention

The present application provides a communication method and apparatus for solving the problem that the terminal device feeds back a response response when a BP used by a terminal device is switched.

In a first aspect, the present application provides a communication method, which includes the following steps:

Step 1: The terminal device receives the first information from the network device, where the first information is used to indicate the first response response resource, the frequency domain resource of the first response response resource is in the first BP, and the first response The response resource is used to carry the first response response of the terminal device to the first downlink information;

Step 2: The terminal device receives second information from the network device when the uplink frequency domain resource is switched from the first BP to the second BP, where the second information is used to indicate the second response response resource. The frequency domain resource of the second response response resource is in the second BP, and the second response response resource is used to carry the first response response;

Step 3: The terminal device feeds back the first response response on the second response response resource indicated by the second information.

According to the foregoing method, after the used BP is switched, the terminal device may not continue to send the first response response on the first response response resource, but may determine that the frequency domain resource is second after the handover. The second response in the BP is responsive to the resource, so that the first response response can be fed back to the network device on the second response response resource, where the first response response is the first The response response of the line information feedback.

In a possible design, the terminal device may receive the second information multiple times, and the second information is the second information that is received last time before the terminal device feeds back the first response.

In a possible design, the first response response resource further includes a time domain resource and/or a code domain resource, and correspondingly, the second response response resource further includes a time domain resource and/or a code domain resource.

In a possible design, the method further includes the following steps: the terminal device receives a handover indication from the network device, where the handover indication is used to indicate an uplink frequency domain resource of the terminal device from the first BP Switch to the second BP.

With this design, the terminal device can determine, by the received handover indication, that the used BP is switched from the first BP to the second BP.

In one possible design, the second information and the handover indication may be included in one DCI transmission.

In this design, the network device may send the second information and the handover indication to the terminal device by sending a DCI, so that the design may save signaling overhead of the network device.

In one possible design, the second information is used to indicate a second response response resource.

When the number of the first response responses is multiple, the terminal device feeds back multiple first response responses through a second response response resource, thereby improving resource utilization.

In a possible design, based on the foregoing design, when the number of the first response responses is multiple, the terminal device may feed back the first response response on the second response response resource by using the following steps: Retrieving a binding response or a joint response of the first response response on the second response response resource.

In this design, when the terminal device feeds back the multiple first response responses by means of feedback binding, the information overhead can be saved. When the terminal device feeds back the multiple first response responses by means of a feedback joint response, the transmission efficiency may be improved, and the network device may accurately determine the first of each first downlink information by using the joint response. Response response.

In a possible design, before the terminal device feeds back the binding response on the second response response resource, the method further includes the following steps: the terminal device acquires the number of the first response response, and may However, the binding response is generated according to the number of the first response response and the number of the received first downlink information.

Method 1: When the terminal device receives a first downlink information and needs to feed back a first response, if the terminal device determines that the number of the received first downlink information is smaller than the first response response And determining, by the quantity, that the binding response is a NACK; if the terminal device determines that the quantity of the received first downlink information is equal to the number of the first response, determining that the binding response is an ACK;

Method 2: When the terminal device receives a first downlink information and needs to feed back n (n is greater than or equal to 2) the first response, the terminal device determines, according to the received quantity of the first downlink information, The number of first response responses that should be fed back; if the terminal device determines that the number of first response responses that should be fed back is less than the number of the first response responses, determining that the binding response is NACK; Determining that the number of first response responses that should be fed back is equal to the number of the first response responses, then determining that the binding response is an ACK.

Method 3: The terminal device may generate a first number of first response responses (which are ACKs) that are fed back to the received first downlink information according to the received quantity of the first downlink information. The first quantity is: the number of the received first downlink information, or the number of the first downlink information received by n*;

The terminal device generates a second number of first response responses that are NACKs, the second number = the number of the first response responses - the first number;

The terminal device performs binding processing on the first number of first response responses (ACKs) and the second number of first response responses (NACKs), for example, performing logical processing and generating the binding response, The binding response is ACK when the second quantity is 0, and the binding response is NACK when the second quantity is not 0.

Through the method, the binding response generated by the terminal device can accurately reflect the transmission result of the first downlink information.

In a possible design, the terminal device acquires the number of the first response, including:

The terminal device receives the number of the first response responses from the network device.

With this design, the terminal device can determine the number of the first response responses so that the binding response can be accurately generated.

In one possible design, the terminal device receives, from the network device, third information that carries the number of the first response responses. The third information may be high layer signaling, such as a system information block (SIB), a radio resource control (RRC), and a media access control (MAC) control element (Control Element). , CE), can also be dynamic signaling, such as DCI. Optionally, when the third information is the DCI, the DCI may be the DCI that carries the second information and the handover indication in the foregoing embodiment, so that the signaling overhead of the network device may be further saved. .

In a possible design, the terminal device may feed back the joint response on the second response response resource by the following steps:

The terminal device acquires a physical uplink control channel PUCCH format format, where the PUCCH format is used by the terminal device when transmitting the joint response; and then, the terminal device is configured according to the received first downlink And determining, according to the first response, the joint response, and finally, the terminal device may send the Joint response.

For example, when the terminal device sends the joint response on the second response response resource according to the PUCCH format, the terminal device modulates, time domain, and the joint response according to the PUCCH format. And/or frequency domain orthogonalization processing; then, the terminal device maps the modulated information to the time-frequency resource of the second response response resource, and sends the information to the network device.

With this design, the terminal device can successfully transmit the joint response on the second response response resource.

In a possible design, the terminal device may combine the multiple first response responses to generate a joint response. The joint response includes the multiple first response responses. Therefore, the terminal device may save the resource overhead by feeding back the multiple response by feeding back the joint response, and the network device passes the The joint response can accurately determine the first response response of each of the first downlink information.

In a possible design, the terminal device can obtain the PUCCH format in the following two ways:

The first mode: the terminal device receives the PUCCH format from the network device;

The second mode: the terminal device acquires the number of the first response responses, and determines the PUCCH format according to the number of the first response responses.

With this design, the terminal device can accurately acquire the PUCCH format.

In a possible design, when the terminal device generates the joint response, the joint response may be generated according to a location in the codebook according to the first response response from the network device.

With the design, when the terminal device generates the joint response, the location of each first response response in the joint response may be determined according to the location of the first response response in the codebook, so that the terminal device can accurately The combined response is obtained.

In one possible design, the codebook information is an identifier of the first downlink information, or an index of a location of the first response response in the codebook. When the codebook information is the identifier of the first downlink information, the terminal device may respond to the identifier of the downlink information and the response of the downlink information in the codebook according to the identifier of the first downlink information. In the correspondence of the locations, the location of the first response response in the codebook is determined.

In a possible design, the second information is used to indicate at least one second response response resource, and each second response response resource corresponds to a first response response in the first response response.

Through the design, the terminal device may implement, on each second response response resource, feed back a first response response corresponding to each second response response resource.

In a possible design, based on the foregoing design, the terminal device may feed back the first response response on the second response response resource by: the terminal device according to the received first And determining, by the line information, the first response response. Then, the terminal device feeds back a first response response corresponding to each second response response resource on each second response response resource.

With the design, the terminal device can implement a first response response corresponding to each second response response resource on each second response response resource, so that the network device can directly determine each first The first response response corresponding to the row information.

In a possible design, the second information includes an offset of the at least one second response response resource, or an index of the at least one second response response resource;

The offset of the second response response resource corresponding to any one of the first response responses may be expressed in the following two manners:

a first representation manner: an offset of a location of the second response response resource corresponding to the first response response relative to a location of the first response response resource corresponding to the first response response;

The second representation manner is: an offset of an index of the second response response resource corresponding to the first response response relative to an index of the first response response resource corresponding to the first response response.

With the design, the terminal device can accurately determine the at least one second response response resource according to the second information.

In a possible design, when the first bit number required for the offset of the at least one second response response resource is smaller than the second number of bits required by the index of the at least one second response response resource, the second The information can include an offset of the at least one second response response resource. When the second number of bits is smaller than the first number of bits, the second information may include an index of the at least one second response response resource. In this way, the information overhead of the second information can be reduced.

In a possible design, before the terminal device feeds back the first response response on the second response response resource, the method further includes the following steps:

Determining, by the terminal device, an offset of the second response response resource corresponding to each first response response in the second information;

Determining, by the terminal device, the second response response corresponding to each first response response according to the first response response resource corresponding to each first response response and the offset of the second response response resource corresponding to each first response response Resources.

In the design, the terminal device can accurately determine the second response response resource corresponding to each first response response, so that the first response response can be sent on the second response response resource corresponding to each second response response. The first response response can be prevented from being sent on the erroneous second response response resource.

In a possible design, the terminal device may determine, in the second information, an offset of the second response response resource corresponding to each first response response by using the following steps:

Obtaining, by the terminal device, an identifier of the first downlink information from the network device;

And determining, by the terminal device, an offset of the second response response resource corresponding to each first response response in the second information according to the identifier of the first downlink information.

After the network device determines the offset of the at least one second response response resource, the domain in which the offset of each second response response resource is located or the second may be deployed according to the identifier of the first downlink information. The location of the information. In this way, the terminal device can accurately determine the offset of the second response response resource corresponding to each first response response by using the identifier of the first downlink information.

In a possible design, the terminal device may receive the second information from the network device according to the wireless network temporary identifier RNTI of the terminal device.

In this way, the network device may send a plurality of second information, each second information indicating one or more second response response resources of one or more terminal devices, the terminal device receiving only the RNTI configured by the network device One or more second information belonging to oneself does not receive the second information that does not belong to oneself, so that the complexity of blindly checking the second information by the terminal device can be reduced.

In one possible design, the method further includes the following steps:

The terminal device receives fourth information from the network device, where the fourth information is used to indicate a third response response resource, the frequency domain resource of the third response response resource is in the first BP, and the The third response response resource is configured to carry a second response response of the terminal device to the second downlink information.

The terminal device receives the fifth information from the network device, where the fifth information is used to indicate the fourth response response resource, and the frequency domain resource of the fourth response response resource is in the second BP, And the fourth response response resource is configured to carry the second response response;

The terminal device feeds back the second response response on the fourth response response resource.

Through the design, the mobile communication system can group the downlink information, and the response responses to the feedback of the different groups of downlink information use different response response resources, thereby improving the flexibility of the feedback response of the mobile communication system, and each group of The response of the downlink information occupies a response response resource, which can improve the utilization of resources.

In a possible design, the first downlink information is downlink information in a first time time unit set; the second downlink information is downlink information in a second time unit set; the first time unit set and the The second set of time units each include at least one time unit. Optionally, the time unit may be a system frame, a subframe, a time slot, a minislot, a slot aggregation, a minislot aggregation, or the like. In addition, the number of time units included in the first time unit set and the second time unit set may be the same or different.

Through this design, the mobile communication system can group the downlink information according to the time unit, and the flexibility of grouping the downlink information is improved.

In a second aspect, the present application provides a communication method, which includes the following steps:

Step 1: The network device sends the first information to the terminal device, where the first information is used to indicate the first response response resource, the frequency domain resource of the first response response resource is in the first bandwidth part BP, and the The response response resource is used to carry the first response response of the terminal device to the first downlink information.

Step 2: The network device switches the uplink frequency domain resource of the terminal device from the first BP to the second BP.

Step 3: The network device sends the second information to the terminal device, where the second information is used to indicate the second response response resource, and the frequency domain resource of the second response response resource is in the second BP. And the second response response resource is used to carry the first response response.

After the network device notifies the terminal device to use the frequency domain resource to transmit the first response response in the first response response resource in the first BP, the network device switches the uplink frequency domain resource of the terminal device from the first BP to the second BP, and then the network device continues to notify the terminal device to carry the first response response by using a second response response resource of the frequency domain resource in the second BP. The first response response is a response response of the terminal device to the first downlink information feedback. After the switching of the used BP, the terminal device may determine the second response response resource of the frequency domain resource in the second BP after the handover, so that the terminal response resource may be used on the second response response resource. The network device feeds back the first response response.

In a possible design, the network device may switch the uplink frequency domain resource of the terminal device from the first BP to the second BP by sending a handover indication to the terminal device, where The handover indication is used to indicate that the uplink frequency domain resource of the terminal device is switched from the first BP to the second BP.

In this design, the network device may notify the BP used by the terminal device that the BP has been switched by using the handover indication, and implement configuring the BP used by the terminal device.

In a possible design, the network device may send the second information and the handover indication to the terminal device by sending a DCI, so that the design may save signaling overhead of the network device.

In a possible design, based on the above design, when the number of the first response responses is multiple, after the network device sends the second information to the terminal device, the network device is in the second Receiving a binding response or a joint response of the first response response fed back by the terminal device on the response response resource.

In a possible design, before receiving the binding response fed back by the terminal device, the network device further needs to send the number of the first response response to the terminal device.

With the design, the terminal device may generate the binding that can accurately reflect the transmission result of the first downlink information according to the number of the first response and the case of receiving the first downlink information. response.

In a possible design, the network device may send the number of the first response responses to the terminal device by using the third information. The third information may be high layer signaling, such as a system information block (SIB), a radio resource control (RRC), and a media access control (MAC) control element (Control Element). , CE), can also be dynamic signaling, such as DCI. Optionally, when the third information is the DCI, the DCI may be the DCI that carries the second information and the handover indication in the foregoing embodiment, so that the signaling overhead of the network device may be further saved. .

In a possible design, after the network device receives the binding response, the method further includes:

When the binding response is an ACK, the network device determines that the terminal device successfully receives the first downlink information;

When the response is a NACK, the network device determines that the terminal device has not successfully received all the first downlink information, and then retransmits the first downlink information.

With the design, the network device can determine the transmission status of the first downlink information according to the binding response.

In a possible design, before the network device receives the joint response fed back by the terminal device, the method further includes the following steps:

Determining, by the network device, a physical uplink control channel PUCCH format format according to the number of the first response, and sending the PUCCH format to the terminal device, where the PUCCH format is that the terminal device is transmitting the Used in conjunction with the response.

Since the capacity and multiplexing capability of different PUCCH formats are different, and the capacity and multiplexing capability are related to the amount of information that the terminal device needs to send (for example, the number of the first response responses), the network device may determine Corresponding to the PUCCH format of the number of the first response that the terminal device needs to send, and sending the PUCCH format to the terminal device, so that the terminal device can be according to the PUCCH format, in the The joint response is sent on the second response response resource.

In a possible design, before the network device receives the joint response fed back by the terminal device,

The network device also needs to send codebook information to the terminal device, where the codebook information indicates a location of the first response response in the codebook.

With the design, the terminal device that receives the codebook information may determine, according to the location of the first response response in the codebook, the first response response in the joint response when generating the joint response. The location in the middle so that the combined response can be accurately obtained.

In one possible design, the codebook information is an identifier of the first downlink information, or an index of a location of the first response response in the codebook.

In a possible design, after the determining, by the network device, the first response response corresponding to each first downlink information in the joint response, the method further includes:

When the first response response corresponding to the target first downlink information is ACK, the network device determines that the terminal device successfully receives the target first downlink information, where the target first downlink information is One of the first downlink information;

When the first response response corresponding to the target first downlink information is NACK, the network device determines that the terminal device does not successfully receive the target first downlink information, and then first targets the target The line information is retransmitted.

In a possible design, after the network device sends the second information to the terminal device, the network device receives the second response response resource in each of the at least one second response response resource, respectively. Determining, by the terminal device, a first response response corresponding to each second response response resource.

Through the design, the network device can obtain each first response response on each second response response resource.

In a possible design, after the network device switches the uplink frequency domain resource of the terminal device from the first BP to the second BP, the network device sends the The identifier of a downlink message.

In a possible design, the network device sends the second information to the terminal device, including:

The network device sends the second information to the terminal device according to a radio network temporary identifier RNTI configured for the terminal device.

With the design, the network device may send a plurality of second information, each of the second information indicating one or more second response response resources of the one or more terminal devices, the terminal device using the RNTI configured by the network device, Only one or more second information belonging to oneself is received, and the second information that does not belong to itself is received, so that the complexity of blindly checking the second information by the terminal device can be reduced.

In a possible design, after determining, by the network device, the first response response corresponding to each first downlink information, the method further includes:

Through the design, the first response response corresponding to each first downlink information that the network device can receive determines the transmission status of each first downlink information.

In a possible design, the network device may further send the first device to the terminal device before the network device switches the uplink frequency domain resource of the terminal device from the first BP to the second BP. The fourth information is used to indicate the third response response resource, the frequency domain resource of the third response response resource is in the first BP, and the third response response resource is used to carry the terminal The device responds to the second response of the second downlink information;

After the network device switches the uplink frequency domain resource of the terminal device from the first BP to the second BP, the network device may further send fifth information, the fifth, to the terminal device. The information is used to indicate the fourth response response resource, the frequency domain resource of the fourth response response resource is in the second BP, and the fourth response response resource is used to carry the second response response.

In a third aspect, the present application provides a communication device for a terminal device, comprising: a unit or means for performing the steps of the above first aspect.

In a fourth aspect, the application provides a communication device for a network device, comprising: a unit or means for performing the steps of the second aspect above.

In a fifth aspect, the present application provides a communication device for a terminal device comprising at least one processing element and at least one storage element, wherein the at least one storage element is for storing programs and data, and the at least one processing element is for The method provided by the first aspect of the application is performed.

In a sixth aspect, the present application provides a communication device for a network device comprising at least one processing element and at least one storage element, wherein the at least one storage element is for storing programs and data, and the at least one processing element is for The method provided by the second aspect of the present application is performed.

In a seventh aspect, the application provides a communication device for a terminal device comprising at least one processing element (or chip) for performing the method of the above first aspect.

In an eighth aspect, the present application provides a communication device for a network device, comprising at least one processing element (or chip) for performing the method of the above second aspect.

In a ninth aspect, the application provides a program for performing the method of any of the above aspects when executed by a processor.

In a tenth aspect, the application provides a program product, such as a computer readable storage medium, comprising the program of the fifth aspect.

In an eleventh aspect, an embodiment of the present application provides a mobile communication system, where the mobile communication system includes a terminal device and a network device.

In the solution provided by the embodiment of the present application, after the network device notifies the terminal device that the first response response resource in the first BP is used to carry the first response response by using the frequency domain resource, the uplink frequency domain resource of the terminal device is removed from the device. The first BP switches to the second BP, and then the network device continues to notify the terminal device to carry the first response response by using the second response response resource in the second BP by using the frequency domain resource. The first response response is a response response of the terminal device to the first downlink information feedback. After the BP used by the terminal device is switched, the terminal device may not continue to send the first response response on the first response response resource, but may determine that the frequency domain resource is in the handover. The second response within the second BP is responsive to the resource, such that the first response response can be fed back to the network device on the second response response resource.

DRAWINGS

FIG. 1 is a schematic structural diagram of a mobile communication system according to an embodiment of the present application;

2 is a flowchart of a first communication method according to an embodiment of the present application;

3 is a flowchart of a second communication method according to an embodiment of the present application;

4 is a flowchart of a third communication method according to an embodiment of the present application;

FIG. 5 is a flowchart of a fourth communication method according to an embodiment of the present application;

FIG. 6 is a flowchart of a fifth communication method according to an embodiment of the present application;

FIG. 7 is a structural diagram of a first communication apparatus according to an embodiment of the present application;

FIG. 8 is a structural diagram of a second communication apparatus according to an embodiment of the present application;

FIG. 9 is a structural diagram of a third communication apparatus according to an embodiment of the present application;

FIG. 10 is a structural diagram of a fourth communication apparatus according to an embodiment of the present application;

FIG. 11 is a schematic structural diagram of a terminal device according to an embodiment of the present disclosure;

FIG. 12 is a schematic structural diagram of a network device according to an embodiment of the present disclosure.

detailed description

The present application provides a communication method and apparatus for solving the problem of the terminal device feeding back a response response in the case where a part of the bandwidth used by the terminal device is switched. The method and the device are based on the same inventive concept. Since the principles of the method and the device for solving the problem are similar, the implementation of the device and the method can be referred to each other, and the repeated description is not repeated.

In the solution provided by the embodiment of the present application, after the network device notifies the terminal device that the first response response resource in the first BP is used to carry the first response response by using the frequency domain resource, the uplink frequency domain resource of the terminal device is The first BP switches to the second BP, and then the network device continues to notify the terminal device to carry the first response response by using the second response response resource of the frequency domain resource in the second BP. The first response response is a response response of the terminal device to the first downlink information feedback. After the BP used by the terminal device is switched, the terminal device may not continue to send the first response response on the first response response resource, but may determine that the frequency domain resource is in the handover. The second response within the second BP is responsive to the resource, such that the first response response can be fed back to the network device on the second response response resource.

Hereinafter, some of the terms in the present application will be explained to be understood by those skilled in the art.

1) A network device is a device in a network that connects a terminal device to a wireless network. The network device is a node in the radio access network, and may also be referred to as a base station, and may also be referred to as a radio access network (RAN) node (or device). Currently, some examples of network devices are: gNB, transmission reception point (TRP), evolved Node B (eNB), radio network controller (RNC), and Node B (Node). B, NB), base station controller (BSC), base transceiver station (BTS), home base station (for example, home evolved NodeB, or home Node B, HNB), baseband unit , BBU), or wireless fidelity (Wifi) access point (AP). In addition, in a network structure, the network device may include a centralized unit (CU) node and a distributed unit (DU) node. This structure separates the protocol layer of the eNB in the long term evolution (LTE) system, and the functions of some protocol layers are centrally controlled in the CU, and the functions of the remaining part or all of the protocol layers are distributed in the DU by the CU. Centrally control the DU.

2) Terminal equipment, also known as user equipment (UE), mobile station (MS), mobile terminal (MT), etc., is a kind of voice and/or data connectivity provided to users. Devices, for example, handheld devices with wireless connectivity, in-vehicle devices, and the like. Currently, some examples of terminals are: mobile phones, tablets, laptops, PDAs, mobile internet devices (MIDs), wearable devices, virtual reality (VR) devices, augmented reality. (augmented reality, AR) equipment, wireless terminals in industrial control, wireless terminals in self driving, wireless terminals in remote medical surgery, smart grid Wireless terminals, wireless terminals in transportation safety, wireless terminals in smart cities, wireless terminals in smart homes, and the like.

3) BP is a continuous or non-contiguous frequency domain resource. For example, a BP may include consecutive or non-contiguous K subcarriers, or frequency domain resources containing non-overlapping consecutive or non-contiguous M RBs, or containing non-overlapping consecutive or non-contiguous N RBGs. Frequency domain resources; K, M, N are integers greater than zero. The BP may also be a bandwidth resource, a frequency resource, a frequency resource part, a partial frequency resource, or other names, which is not limited in this application.

In the embodiment of the present application, when the terminal device communicates with the network device, it needs to be transmitted in the BP configured by the network device. When configuring the frequency domain resource for the terminal device, the network device may separately configure different frequency domain resources for the uplink information transmission and the downlink information transmission of the terminal device, or may not distinguish between uplink and downlink, and information for the terminal device. The configuration of the frequency domain resource is not limited in this embodiment of the present application.

For example, the downlink frequency domain resource configured by the network device for downlink information transmission of the terminal device is BP1, and the uplink frequency domain resource configured for uplink information transmission of the terminal device is BP2.

For another example, the uplink (and downlink) frequency domain resource configured by the network device for the terminal device is BP1.

4) A response response, a transmission result of the signal used by the transmitting device (such as a network device) for notifying the information, that is, whether the receiving device (such as the terminal device) whose transmission result is the signal successfully receives the information. The response response may be ACK (eg 1) or NACK (eg 0). When the response response is ACK, it indicates that the receiving device successfully receives the information; when the response response is NACK, it indicates that the receiving device does not successfully receive the information.

For example, in a mobile communication system employing the HARQ technology, the receiving device generates a response response to the information according to whether the information transmitted by the transmitting device is successfully received in a HARQ process, and sends the response to the information, so that the receiving device can notify And transmitting, by the sending device, the transmission result of the information, so that the sending device may determine, according to the response response, whether the information is retransmitted. Thus, the receiving device of the signal in the mobile communication system can realize the reliability of information transmission in the mobile communication system by transmitting a response to the transmitting device.

5) Binding responses of multiple response responses are generated by binding a plurality of response responses of the plurality of information to a receiving device (eg, a terminal device) of a plurality of information in the mobile communication system. Therefore, one of the binding responses may indicate a transmission result of the plurality of information.

When the terminal device binds the multiple response responses, the terminal device may perform a logical operation on the multiple response responses by using a certain logic algorithm to generate a binding response. The logical operation may include at least one of the following: logical AND, logical OR, logical non.

For example, in a scenario where a network device in a mobile communication system transmits four pieces of information to a terminal device:

When the terminal device receives the four pieces of information, the terminal device may determine that the response response of the four pieces of information is ACK, and the terminal device performs logical AND operation on the determined four response responses, and ACK & ACK & ACK & ACK = ACK, so that the binding response of the four response responses can be determined as ACK. The binding response is used to notify the network device that the four information transmissions are successful, and the four pieces of information need not be retransmitted.

When the terminal device receives three of the four pieces of information, the terminal device may determine that the response response of the four pieces of information includes three ACKs and one NACK, and the terminal device pairs the determined 4 The response responses are logically ANDed, ACK & ACK & ACK & NACK = NACK, so that the binding response of the four response responses can be determined to be NACK. The binding response is used to notify the network device that there is information that the transmission fails in the four pieces of information, and the network device may retransmit the four pieces of information.

6) A joint response of a plurality of response responses, which is jointly (or combined) generated by a plurality of response responses of the plurality of pieces of information to a receiving device (eg, a terminal device) of the plurality of pieces of information in the mobile communication system. Therefore, the plurality of response responses are included in the joint response.

In the embodiment of the present application, when the terminal device generates the joint response according to the multiple response responses, the terminal device may follow a set combination principle (for example, according to a PUCCH format, and/or each response). The joint response is generated in response to the location in the codebook.

For example, when the multiple response responses are 2, the terminal device may use PUCCH format1; when the multiple response responses are 8, the terminal device may use PUCCH format3.

7) Multiple means two or more, and other quantifiers are similar.

8) "and / or", describing the association relationship of the associated object, indicating that there may be three kinds of relationships, for example, A and / or B, can indicate: A exists separately, A and B exist simultaneously, and B exists separately. . The character "/" generally indicates that the contextual object is an "or" relationship.

In addition, it should be understood that in the description of the present application, the terms "first", "second" and the like are used only to distinguish the purpose of description, and are not to be understood as indicating or implying relative importance, nor as an indication. Or suggest the order.

The embodiments of the present application are specifically described below with reference to the accompanying drawings.

FIG. 1 shows a mobile communication system to which the communication method provided by the embodiment of the present application is applicable. Referring to FIG. 1, in the mobile communication system, the system includes a network device 101 and a terminal device 102.

The network device 101 is responsible for providing the terminal device 102 with a service related to radio access, implementing radio physical layer functions, resource scheduling and radio resource management, quality of service (QoS) management, and radio access control. Mobility management capabilities.

The terminal device 102 is a device that accesses the network through the network device 101.

The network device 101 and the terminal device 102 are connected through a Uu interface, thereby implementing communication between the terminal device 102 and the network device 101.

In the system, the bandwidth capability of the network device 101 is different from the bandwidth capability of the terminal device 102. The maximum bandwidth supported by the terminal device 102 is smaller than the frequency bandwidth of the system bandwidth supported by the network device 101. For example, the maximum bandwidth supported by the terminal device 102 is 5 MHz, and the frequency domain of the system bandwidth supported by the network device 101 is used. The width is 20MHz. The maximum bandwidth of the terminal device 102 is a frequency domain width supported by the terminal device 102, and can be used as a specific performance of the bandwidth capability of the terminal device 102.

When the terminal device 102 initially accesses the network device 101, the network device 101 reports its own bandwidth capability, that is, the terminal device 102 sends the maximum bandwidth of the terminal device 102 to the network device 101. After receiving the maximum bandwidth, the network device 101 configures multiple BPs for the terminal device 102 according to the maximum bandwidth and the system bandwidth, and configures the terminal device 102 for each BP. The PUCCH resources, wherein the frequency domain resources of the plurality of PUCCH resources configured for any one of the BPs are within the BP.

The network device 101 may notify the terminal device 102 of the plurality of BPs configured for the terminal device 102 and a plurality of PUCCH resources configured for each BP by higher layer signaling. Optionally, the high layer signaling may be Radio Resource Control (RRC) signaling.

The network device 101 configures the first BP as the uplink frequency domain resource of the terminal device 102 in the multiple BPs, and the network device may allocate the frequency domain resource to the terminal device in the subsequent transmission. The resources in the first BP are used as uplink resources (for example, PUCCH resources, PUSCH resources, and the like), so that the terminal device 102 can use the uplink resources to send information to the network device 101.

In the scenario where the system uses the HARQ technology to communicate, and the network device 101 sends the downlink information to the terminal device 102, the following steps are included:

For transmitting the downlink information, the network device 101 performs resource allocation for the terminal device 102: allocating a downlink resource (ie, a PDSCH resource), and selecting one PUCCH resource among the multiple PUCCH resources corresponding to the first BP. Respond to response resources.

The network device 101 notifies the terminal device 102 of the resource allocated by the terminal device 102, for example, the network device 101 sends, by using the PDCCH channel, the PDSCH resource indication to the terminal device 102, The DCI that responds to the resource indication (or index). The downlink frequency domain resource of the PDCCH channel and the frequency domain resource in the PDSCH resource are located in the same BP, and may be in the first BP or in the network device 101. A downlink frequency domain resource configured by the device - within one of the plurality of BPs (including the first BP).

The network device 101 sends the downlink information to the terminal device 102 on the PDSCH resource;

After receiving the notification of the resource allocation of the network device 101 (the DCI), the terminal device 102 receives the downlink information on the PDSCH resource;

The terminal device 102 generates a response response to the downlink information according to the received result of the downlink information. In the case that the uplink frequency domain resource allocated by the network device 101 is not switched, the terminal device 102 The response response is fed back to the network device 101 on the response response resource.

or

The network device 101 allocates a PDCCH resource to the terminal device in the first BP, and allocates a PUCCH resource to the terminal device in the multiple PUCCH resources corresponding to the second BP; the network device 101 indicates the PUCCH resource The bearer is sent to the terminal device 102 in the DCI, and the DCI is carried in the PDCCH; wherein the PUCCH resource is a response response resource, and the terminal device 102 feeds back the information to the network device 101. DCI corresponding ACK/NACK;

The terminal device 102 receives the DCI on the PDCCH resource, and determines the PUCCH resource according to the PUCCH resource indication; and if the network device 101 does not switch the uplink frequency domain resource allocated thereto, The terminal device 102 feeds back a response response to the DCI on the PUCCH resource, and notifies the network device 101 that the terminal device 102 has successfully received the DCI.

It should be noted that the system shown in Figure 1 is merely exemplary embodiment provides a mobile communication system embodiment of the present application, embodiments of the present application may also be applied to the fifth generation (The 5 ^th Generation, 5G) mobile communication system The embodiments of the present application are not limited in terms of the Long Term Evolution (LTE), other mobile communication systems, and other mobile communication systems based on the evolution of the above mobile communication system.

The embodiment of the present application provides a communication method, which can be applied to the mobile communication system shown in FIG. 1. Referring to FIG. 2, the process of the method includes:

S201: The network device sends the first information to the terminal device, where the first information is used to indicate the first response response resource, the frequency domain resource of the first response response resource is in the first BP, and the first response is The resource is used to carry the first response response of the terminal device to the first downlink information.

Correspondingly, the terminal device receives the first information from the network device.

Optionally, the first BP is one of multiple BPs configured by the network device for the terminal device.

According to the description in the mobile communication system, before transmitting the first downlink information, the network device needs to perform resource allocation, including PDSCH resources, for the terminal device to transmit the first downlink information. And the first response response resource; and the terminal device notifies the terminal device of the resource allocated by the network device by using the DCI. Therefore, optionally, the network device may carry the first information in the DCI and send the information to the terminal device.

Optionally, the first response response resource is one PUCCH resource on multiple PUCCH resources configured by the network device for the first BP.

When the network device configures multiple PUCCH resources for each of the plurality of BPs, the network device may notify the terminal device of the PUCCH resources configured for each BP by using high layer signaling. . The network device further includes the following steps before performing S201:

The network device selects one PUCCH resource as the first response response resource on the multiple PUCCH resources configured for the first BP, and generates the first information, where the first information is An index of the first response response resource in the plurality of PUCCH resources of the first BP configuration.

In this manner, after receiving the first information, the terminal device may directly determine, according to the index of the first response response resource, the first response in multiple PUCCH resources configured for the first BP. Respond to resources.

Optionally, the method further includes: S202: the network device sends the first downlink information to the terminal device.

Correspondingly, the terminal device receives the first downlink information from the network device.

The network device sends the first downlink information on a PDSCH resource allocated by the network device to the terminal device.

S203: The network device switches an uplink frequency domain resource of the terminal device from the first BP to a second BP.

Optionally, the first BP and the second BP are not completely the same, that is, the partial frequency resource or all frequency resources included in the first BP are not included in the second BP, or the second BP The partial frequency resource or all frequency resources included are not included in the first BP. Illustratively, in the OFDM-based communication system, the first BP and the second BP may not be identical: the at least one subcarrier included in the first BP is not included in the second BP. Or at least one subcarrier included in the second BP is not included in the first BP.

Optionally, when the uplink frequency domain resource and the downlink frequency domain resource of the terminal device are decoupled, the switching from the first BP to the second BP may be because of a downlink frequency associated with the first BP. The switching of the uplink resource corresponding to the first BP caused by the switching of the domain resource may be the switching of the uplink resource corresponding to the first BP, and the downlink frequency domain resource of the terminal device at this time You can switch without switching. Since it has nothing to do with the substance of this application, it will not be described later.

Optionally, the method further includes: S204: the network device sends a handover indication to the terminal device, where the handover indication is used to indicate that the uplink frequency domain resource of the terminal device is switched from the first BP to the first Two BP.

Correspondingly, the terminal device receives a handover indication from the network device, to deactivate the first BP according to the handover indication, and activate the BP, to determine that the uplink frequency domain resource used subsequently is the second BP.

Optionally, the network device may carry the handover indication in a DCI and send the information to the terminal device. In this way, the terminal device receives the DCI from the network device, thereby obtaining the handover indication.

S205: The network device sends the second information to the terminal device, where the second information is used to indicate the second response response resource, and the frequency domain resource of the second response response resource is in the second BP, and The second response response resource is configured to carry the first response response.

Correspondingly, the terminal device receives the second information from the network device, where the second information is used to indicate the second response response resource, and the frequency domain resource of the second response response resource is in the second BP, and The second response response resource is configured to carry the first response response.

Optionally, since the second information is used to indicate the second response response resource, multiple network PUCCH resources are configured for each BP, and PUCCH resources to be configured for each BP are configured. In the case of notifying the terminal device, the second information is similar to the first information, and may also be an index of the second response response resource. In addition, the step of the network device selecting the second response response resource is similar to the step of selecting the first response response resource, and details are not described herein again.

Optionally, in the case that the network device is configured with multiple PUCCH resources for each BP, but the PUCCH resources configured for each BP are not notified to the terminal device, the second information may also be Responding to the location of the resource for the second response. In addition, the second information may be: an offset of a location of the second response response resource relative to a location of the first response response resource, or the second information may also be the second The offset of the index of the response response resource relative to the index of the first response response resource, etc., is not limited in this application.

Optionally, the first response response resource further includes a time domain resource and/or a code domain resource. Correspondingly, the second response response resource further includes a time domain resource and/or a code domain resource.

Optionally, when the method includes S204, the terminal device may directly determine, by using the handover indication, that the uplink frequency domain resource used later is the second BP.

Optionally, when the method does not include S204, in this step, the frequency domain resource of the second response response resource is in the second BP, and the second information is used to indicate the second The response to the response resource, the terminal device may determine, by using the received second information, that the uplink frequency domain resource to be used later is the second BP.

The second response response resource is used to carry a response response of the terminal device to respond to downlink information before the BP handover, and the downlink information to be responded (including the first downlink information) is used by the terminal device. Before the BP handover, the downlink information sent by the network device to the terminal device and the terminal device still does not feed back the response to the network device when the BP is switched.

Optionally, the network device may send the second information to the terminal device by using the following manner, including:

Transmitting, by the network, the first downlink control information DCI carrying the second information to the terminal device. In this way, the terminal device receives the first DCI carrying the second information from the terminal device, thereby acquiring the second information.

Optionally, the network device may perform S204 and S205 at the same time, that is, the handover indication is sent simultaneously with the second information, in other words, the network device may simultaneously indicate the handover to the second information. The carrier is sent to the terminal device in the first DCI. In this way, the signaling overhead of the network device can be saved.

Certainly, the DCI carrying the handover indication and the first DCI may also be different DCIs, which is not limited in this application.

S206: The terminal device feeds back the first response response on the second response response resource.

Optionally, when performing S206, the terminal device may directly send the first response response to the network device, or process the first response response (eg, binding processing, joint processing, etc.), And feedback the response generated after processing (such as joint response, or binding response).

Optionally, when the first response response is one, the terminal device may directly send the first response response on the second response response;

When the number of the first response responses is multiple, when the terminal device feeds back the first response, the terminal device needs to perform feedback in multiple manners in consideration of the number of the second response response resources. This will be explained by way of a specific embodiment.

After the network device notifies the terminal device that the first response response resource in the first BP carries the first response response by using the frequency domain resource, the uplink frequency domain resource of the terminal device is used by the network device. The first BP switches to the second BP, and then the network device continues to notify the terminal device to carry the first response response by using the second response response resource of the frequency domain resource in the second BP. The first response response is a response response of the terminal device to the first downlink information feedback. After the BP used by the terminal device is switched, the terminal device may not continue to send the first response response on the first response response resource, but may determine that the frequency domain resource is in the handover. The second response within the second BP is responsive to the resource, such that the first response response can be fed back to the network device on the second response response resource. In addition, the method provided by the embodiment of the present invention can also avoid the handover time introduced by the terminal device from the second BP to the first BP feedback first response response, save the time domain air interface resource for the terminal device, and improve the data transmission rate. A possible scenario in which the terminal device switches from the second BP to the first BP is that the terminal device is insufficient in maximum capability to support the first BP and the second BP at the same time.

Based on the embodiment shown in FIG. 2, the embodiment of the present application further provides a communication method. Referring to FIG. 3, the communication method provided by the embodiment of the present application includes the steps in the embodiment shown in FIG. 2. In the embodiment of the present application, the second information is used to indicate a second response response resource, and the number of the first response responses is multiple.

Optionally, the first downlink information in the embodiment of the present application is: the terminal that is sent by the network device to the terminal device and is switched when the BP is switched before the BP switch used by the terminal device The device still does not feed back all the downlink information of the response to the network device.

In the embodiment of the present application, the terminal device performs the S206 by using the following steps:

The terminal device feeds back a binding response of the first response response on the second response response resource. corresponding,

Receiving, by the network device, a binding response of the first response response fed back by the terminal device on the second response response resource.

In the embodiment of the present application, before S206, the method further includes the following steps:

S301: The terminal device acquires the number of the first response, and generates the binding response according to the number of the first response and the received quantity of the first downlink information.

Optionally, the terminal device may generate the binding response according to the number of the first response responses and the number of the received first downlink information by using the following method:

The first method: when the terminal device receives a first downlink information and needs to feed back a first response, if the terminal device determines that the number of the received first downlink information is smaller than the first response Determining, by the number of responses, that the binding response is a NACK; if the terminal device determines that the number of the received first downlink information is equal to the number of the first response, determining that the binding response is an ACK ;

The second method: when the terminal device receives a first downlink information and needs to feed back n (n is greater than or equal to 2) the first response, the terminal device is configured according to the quantity of the first downlink information received. Determining, by the terminal device, the number of first response responses that should be fed back; if the terminal device determines that the number of first response responses that should be fed back is less than the number of the first response responses, determining that the binding response is a NACK; The terminal device determines that the number of first response responses that should be fed back is equal to the number of the first response responses, and then determines that the binding response is an ACK.

The third method: the terminal device may generate, according to the received quantity of the first downlink information, a first number of first response responses (which are ACKs) that are fed back to the received first downlink information; The first quantity is: the quantity of the first downlink information received, or the number of the first downlink information received by n*;

The second and third methods described above give the case where the number of first response responses that each of the first downlink information needs to feed back is the same. Those skilled in the art can extend the creative response to the case where the number of first response responses that need to be fed back for each first downlink information is not completely the same or completely different.

Optionally, the terminal device may obtain the quantity of the first response response by:

The terminal device acquires a preset number of the first response responses; or

The terminal device acquires the number of the first response responses through S300.

Optionally, before S301, the method further includes:

S300: The network device sends the quantity of the first response response to the terminal device.

Correspondingly, the terminal device receives the number of the first response responses from the network device.

Optionally, when the network device transmits the quantity of the first response response to the terminal device, the number of the first response response may be carried in the third information. The third information may be high layer signaling, such as a system information block (SIB), a radio resource control (RRC), and a media access control (MAC) control element. Control Element, CE), can also be dynamic signaling, such as DCI. Optionally, the DCI that carries the number of the first response and the DCI that carries the second information may be the same DCI or a different DCI, which is not limited in this application.

Optionally, after the network device receives the binding response by using the S206, the method further includes:

With the method provided by the embodiment of the present application, after the BP used by the terminal device is switched, the terminal device may not continue to send the first response response on the first response response resource, but may determine The second response response resource of the frequency domain resource in the second BP after the handover, so that the first response response can be fed back to the network device on the second response response resource. In addition, in the foregoing solution, the terminal device feeds back multiple first response responses by using a second response response resource, which may improve resource utilization, and the terminal device feeds back the multiple by feedback binding response The first response response can save information overhead.

Based on the embodiment shown in FIG. 2, the embodiment of the present application further provides a communication method. Referring to FIG. 4, the communication method provided by the embodiment of the present application includes the steps in the embodiment shown in FIG. 2. In the embodiment of the present application, the second information is used to indicate a second response response resource, and the number of the first response responses is multiple.

The terminal device feeds back a joint response of the first response response on the second response response resource.

Correspondingly, the network device receives, on the second response response resource, a joint response of the first response response fed back by the terminal device.

S401: The terminal device generates the joint response by using a method:

The terminal device acquires a physical uplink control channel PUCCH format format, where the PUCCH format is used by the terminal device when sending the joint response;

The terminal device determines the first response response according to the received first downlink information, and generates the joint response according to the first response response.

The terminal device may combine the multiple first response responses to generate a joint response. The joint response includes the multiple first response responses. Therefore, the terminal device may save the resource overhead by feeding back the multiple response by feeding back the joint response, and the network device passes the The joint response can accurately determine the first response response of each of the first downlink information.

And when the terminal device performs S206, sending the joint response of the first response response according to the PUCCH format.

The sending, by the terminal device, the joint response of the first response response according to the PUCCH format, specifically includes:

When the second information indicates an index of the second response response resource, the terminal device determines the second response response resource according to the PUCCH format;

The terminal device performs modulation, time domain and/or frequency domain orthogonalization processing on the joint response according to the PUCCH format;

The terminal device maps the modulated information to the time-frequency resource of the second response response resource, and sends the information to the network device.

Exemplarily, when the joint response is sent by using PUCCH format 1, the modulation is Binary Phase Shift Keying (BPSK)/Quadrature Phase Shift Keying (QPSK) modulation. The orthogonalization process includes multiplying the time domain by an orthogonal sequence and a cyclic shift in the frequency domain; when the joint response is transmitted by using PUCCH format 3, the modulation is QPSK, and the orthogonalization processing includes cyclic shift in the frequency domain. .

The capacity and multiplexing capability of different PUCCH formats are different. Different PUCCH format transmission combined responses can effectively utilize system resources and improve transmission efficiency. Illustratively, PUCCH format 1 has a higher multiplexing capability, which allows more terminal devices to transmit response responses on the same time-frequency resource, but has a smaller capacity and can only transmit fewer bits; instead, PUCCH Format 3 has a higher capacity and can transmit more bits, but its multiplexing capability is lower, and only a small number of terminal devices can be allowed to transmit response responses on the same time-frequency resources.

Optionally, the terminal device may obtain the PUCCH format by:

Manner 1: The terminal device acquires the number of the first response responses, and determines the PUCCH format according to the number of the first response responses.

Since the capacity and multiplexing capability of different PUCCH formats are different, and the capacity and multiplexing capability are related to the amount of information that the terminal device needs to transmit (for example, the number of the first response responses). Optionally, the terminal device maintains a correspondence between the number of response responses and the PUCCH format, and after acquiring the number of the first response responses, the terminal device determines, in the corresponding relationship, the first The number of response responses corresponds to the PUCCH format.

For the terminal device to obtain the number of the first response, refer to the obtaining method described in the embodiment shown in FIG. 3, and details are not described herein again.

Manner 2: The terminal device acquires the PUCCH format through S400a.

Optionally, before S401, the method further includes:

S400a: The network device sends the PUCCH format to the terminal device. Correspondingly, the terminal device receives the PUCCH format from the network device.

The network device may determine the PUCCH format by using the foregoing manner 1 before executing the S400a, and details are not described herein again.

Optionally, when the terminal device performs S401, the joint response of the first response response may be generated by using the following steps:

Obtaining, by the terminal device, the number of first response responses from the network device;

The terminal device obtains the codebook information from the network device by using the S400b, where the codebook information indicates the location of the first response response in the codebook; optionally, the codebook information is the first An identifier of the row information (eg, an identifier of the PDSCH carrying the first downlink information), or an index of a location of the first response response in the codebook.

The terminal device generates the joint response according to the number of the first response responses and the location of the first response response in the codebook.

In this way, when generating the joint response, the terminal device may determine the location of each first response response in the joint response according to the location of the first response response in the codebook, so that the terminal device can accurately obtain The joint response.

Optionally, after the network device receives the joint response on the time-frequency resource corresponding to the second response response resource by using the S206, determining, according to the number of the first response, the PUCCH format, the joint response Demodulation and decoding, determining an identifier of the first downlink information corresponding to the first response response according to the location of the first response response in the codebook, thereby determining whether the first downlink information is correctly received.

After the determining, by the network device, the first response response corresponding to each of the first downlink information, the method further includes:

With the method provided by the embodiment of the present application, after the BP used by the terminal device is switched, the terminal device may not continue to send the first response response on the first response response resource, but may determine The second response response resource of the frequency domain resource in the second BP after the handover, so that the first response response can be fed back to the network device on the second response response resource. In addition, in the foregoing solution, the terminal device feeds back multiple first response responses by using a second response response resource, which may improve resource utilization, and the terminal device feeds back the multiple by feeding back a joint response. The response may be improved, and the network device may accurately determine the first response response of each of the first downlink information by using the joint response.

Based on the embodiment shown in FIG. 2, the embodiment of the present application further provides a communication method. Referring to FIG. 5, the communication method provided by the embodiment of the present application includes the steps in the embodiment shown in FIG. 2. In this embodiment, the second information is used to indicate at least one second response response resource, and each second response response resource corresponds to a first response response in the first response response.

Determining, by the terminal device, the first response response according to the received first downlink information;

The terminal device feeds back a first response response corresponding to each second response response resource on each second response response resource.

Correspondingly, the network device performs the S206 by the following steps:

The network device receives a first response response corresponding to each second response response resource fed back by the terminal device, on each second response response resource of the at least one second response response resource.

Optionally, the second information in the method includes an offset of the at least one second response response resource (also referred to as an ACK Resource Offset (ARO)), or the at least one The index of the second response response resource.

The offset of the second response response resource corresponding to any one of the first response responses is:

An offset of a location of the second response response resource corresponding to the first response response relative to a location of the first response response resource corresponding to the first response response; or

An offset of an index of the second response response resource corresponding to the first response response relative to an index of the first response response resource corresponding to the first response response.

Optionally, when the first bit number required for the offset of the at least one second response response resource is smaller than the second bit number required by the index of the at least one second response response resource, the second information may include The at least one second response is offset by a resource. When the second number of bits is smaller than the first number of bits, the second information may include an index of the at least one second response response resource. In this way, the information overhead of the second information can be reduced.

Optionally, before the performing, by the terminal device, the method further includes:

S501: Determine, in the at least one response response resource, a second response response resource corresponding to each first response response.

Optionally, the terminal device can execute S501 by using the following two methods:

A first method: in case the second information comprises an offset of the at least one second response response resource:

Determining, by the terminal device, each first response response according to a (position or index) of the first response response resource corresponding to each first response response, and an offset of the second response response resource corresponding to each first response response Corresponding second response response resource.

a second method: in the case where the second information includes an offset of the at least one second response response resource:

Determining, by the terminal device, an index of a second response response resource corresponding to each first response response in the second information;

The terminal device determines, according to an index of the second response response resource corresponding to each first response response, a second response response resource corresponding to each first response response.

Through the above two methods, the terminal device can accurately determine the second response response resource corresponding to each first response response by using the second information.

Optionally, in the method, the number of the second information may be multiple, and each first information includes an offset (or index) of a second response response resource; or the second information includes Multiple domains, each carrying a bias (or index) of a second response response resource.

In the above case, after determining the offset (or index) of the at least one second response response resource, the network device may deploy each second response response resource according to the identifier of the first downlink information. The location of the domain or second information in which the offset (or index) is located. In this way, the terminal device can accurately determine the offset (or index) of the second response response resource corresponding to each first response response by using the identifier of the first downlink information.

Based on the foregoing description, optionally, in the foregoing two methods, the terminal device may determine, in the second information, an offset (or an index) of the second response response resource corresponding to each first response response. ),include:

The terminal device acquires, by the S500, an identifier of the first downlink information (for example, an identifier of a PDSCH that carries the first downlink information) from the network device;

And determining, by the terminal device, an offset (or an index) of the second response response resource corresponding to each first response response in the second information according to the identifier of the first downlink information.

Optionally, the network device performs S205 by:

The network device sends the second information to the terminal device according to a Radio Network Temporary Identity (RNTI) configured for the terminal device.

Correspondingly, the terminal device performs S205 in the following manner:

The terminal device receives the second information from the network device according to the RNTI of the terminal device.

In this way, the network device can send multiple second information, each of the second information indicating one or more second response response resources of the one or more terminal devices, and the terminal device uses the RNTI configured by the network device to receive only one of its own. Or a plurality of second information, without receiving the second information that is not his own, so that the complexity of the terminal device blindly checking the second information can be reduced.

Optionally, the network device allocates each second response response resource for each first downlink information, and therefore, the network device receives, by using the S206, a first response response corresponding to each second response response resource. Then, it may be determined according to which downlink information the first response response corresponding to each second response response resource is determined. In this way, the network device can determine a first response response corresponding to each first downlink information.

After determining, by the network device, the first response response corresponding to each first downlink information, the method further includes:

With the method provided by the embodiment of the present application, after the BP used by the terminal device is switched, the terminal device may not continue to send the first response response on the first response response resource, but may determine The second response response resource of the frequency domain resource in the second BP after the handover, so that the first response response can be fed back to the network device on the second response response resource.

Based on the embodiment shown in FIG. 2, the embodiment of the present application further provides a communication method. Referring to FIG. 6, the communication method provided by the embodiment of the present application includes the steps in the embodiment shown in FIG. 2. In the embodiment of the present application, the second information is used to indicate a second response response resource. The fifth information is also used to indicate a fourth response response resource.

The first downlink information in the embodiment of the present application is: before the BP handover used by the terminal device, the network device sends the device to the terminal device, and the terminal device is still not in the BP handover. The network device feeds back a portion of the downlink information of the response. The second downlink information related to the embodiment of the present application is: before the BP handover used by the terminal device, the network device sends the device to the terminal device, and the terminal device still does not go to the network when the BP is switched. The device feedbacks another part of the downlink information of the response. The embodiment of the present application does not limit the number of downlink information included in the first downlink information and the second downlink information, and the number of the first downlink information and the number of the second downlink information. The same may be used or different, and this application does not limit this.

In this embodiment, the terminal device may determine the quantity of the first downlink information and the quantity of the second downlink information in the following two manners:

a first method: the terminal device receives the quantity of the first downlink information and the quantity of the second downlink information that are sent by the network device;

The second method: the terminal device determines the quantity of the first downlink information and the quantity of the second downlink information according to a predefined manner.

Optionally, in the embodiment of the present application, the first downlink information may be downlink information in a first time unit set, and the second downlink information may also be downlink information in a second time unit set; Each of the first set of time units and the second set of time units includes at least one time unit. The first time unit set and the second time unit set may be determined according to the indication information of the network device, or may be determined according to a predefined manner; the first time unit set and the second The number of time units included in the time unit set may be the same or different, which is not limited in this application. The time unit may be a system frame, a subframe, a time slot, a minislot, a slot aggregation, a minislot aggregation, etc., which is not limited in this application.

In this embodiment, the first time unit set and the second time unit set are determined according to a predefined manner. Illustratively, the time unit before receiving the BP handover signaling by the terminal device is in a predefined manner. Dividing, determining a first time unit set and a second time unit set; the first time unit set and the second time unit set may also be referred to as a first time unit window and a second time unit window, and the present application Not limited.

As shown, the operations performed on the second downlink information in the mobile communication system are the same as those performed for the first downlink information.

In the method, before S203, the method further includes:

S601: The network device sends fourth information to the terminal device, where the fourth information is used to indicate a third response response resource, where a frequency domain resource of the third response response resource is in the first BP, and The third response response resource is configured to carry a second response response of the terminal device to the second downlink information.

Correspondingly, the terminal device receives the fourth information from the network device.

S602: The network device sends the second downlink information to the terminal device.

Correspondingly, the terminal device receives the second downlink information from the network device.

After S203, it also includes:

S603: The network device sends the fifth information to the terminal device, where the fifth information is used to indicate the fourth response response resource, and the frequency domain resource of the fourth response response resource is in the second BP. And the fourth response response resource is used to carry the second response response.

Correspondingly, the terminal device receives the fifth information from the network device.

S604: The terminal device feeds back the second response response on the fourth response response resource.

In the embodiment of the present application, the operations performed on the first downlink information and the second downlink information in the mobile communication system may refer to the description in the embodiment of the communication method shown in FIG. 3 or FIG. , will not repeat them here.

On the basis of the foregoing embodiment, the terminal device may determine, according to the first time unit set, a codebook size corresponding to the first time unit set; the terminal device is located according to the first downlink information. The location of the time unit in the first time unit determines the location of the first response response corresponding to the first downlink information in the codebook, if the terminal device does not detect on a certain time unit in the first time unit set The first downlink response is that the first response response in the codebook corresponding to the location of the time unit is NACK.

The manner in which the terminal device determines the second response of the second downlink information in the second time unit set is the same as the foregoing manner, and details are not described herein.

With the method provided by the embodiment of the present application, the mobile communication system can group the downlink information, and respond to the feedback of the downlink information of different groups by using different response response resources, thereby improving the flexibility of the feedback response of the mobile communication system. The response of the downlink information of each group occupies a response response resource, which can improve the utilization of resources.

Based on the above embodiments, the present application further provides a communication device for a terminal device, and the terminal device is applied to the mobile communication system shown in FIG. 1 for implementing the communication method in the foregoing embodiment. Referring to FIG. 7, the communication device 700 includes: a receiving unit 701, a processing unit 702, and a sending unit 703, where

The receiving unit 701 is configured to receive, by the network device, the first information, where the first information is used to indicate the first response response resource, the frequency domain resource of the first response response resource is in the first BP, and the first The response response resource is configured to carry the first response of the terminal device to the first downlink information;

Receiving second information from the network device when the uplink frequency domain resource is switched from the first BP to the second BP, where the second information is used to indicate a second response response resource, and the second response response resource The frequency domain resource is in the second BP, and the second response response resource is used to carry the first response response;

The processing unit 702 is configured to control the sending unit 703 to feed back the first response response on the second response response resource.

Optionally, the receiving unit 701 is further configured to:

And receiving, by the network device, a handover indication, where the handover indication is used to indicate that the uplink frequency domain resource of the terminal device is switched from the first BP to the second BP.

Optionally, the receiving unit 701 is specifically configured to: when receiving the second information from the network device:

Receiving downlink control information DCI carrying the second information from the terminal device;

The receiving unit 701 is specifically configured to: when receiving the handover indication from the network device,

Receiving, from the terminal device, the DCI carrying the handover indication.

Optionally, the second information is used to indicate a second response response resource.

Optionally, when the number of the first response responses is multiple, the processing unit 702, when the first response response is fed back on the second response response resource, is specifically used to:

The control sending unit 703 feeds back a binding response or a joint response of the first response response on the second response response resource.

Optionally, the processing unit 702 is further configured to:

Acquiring the number of the first response responses before controlling the sending unit 703 to feed back the binding response on the second response response resource;

And generating the binding response according to the number of the first response responses and the number of the received first downlink information.

Optionally, the processing unit 702 is specifically configured to: when acquiring the quantity of the first response response:

The number of the first response responses is received by the receiving unit 701 from the network device.

Optionally, the receiving unit 701 is specifically configured to: when receiving the quantity of the first response response from the network device:

Receiving, from the network device, third information carrying the number of the first response responses.

Optionally, the processing unit 702 is specifically configured to: when the sending unit 703 is configured to feed back the joint response on the second response response resource, specifically:

Obtaining a physical uplink control channel PUCCH format format, where the PUCCH format is used by the terminal device when sending the joint response;

Determining, according to the received first downlink information, the first response response; and generating the joint response according to the first response response;

And transmitting the joint response on the second response response resource according to the PUCCH format.

Optionally, the processing unit 702 is specifically configured to: when acquiring the PUCCH format:

Receiving, by the receiving unit 701, the PUCCH format from the network device; or

Obtaining the number of the first response responses, and determining the PUCCH format according to the number of the first response responses.

Optionally, the terminal device generates the joint response, including:

The terminal device acquires codebook information from the network device, where the codebook information indicates a location of the first response response in the codebook;

The terminal device generates the joint response according to the location of the first response response in the codebook.

Optionally, the codebook information is an identifier of the first downlink information, or an index of a location of the first response response in the codebook.

Optionally, the second information is used to indicate at least one second response response resource, and each second response response resource corresponds to a first response response in the first response response.

Optionally, the processing unit 702 is configured to: when the sending unit 703 feeds back the first response response on the second response response resource, specifically:

Determining, according to the received first downlink information, the first response response;

The sending unit 703 controls the first response response corresponding to each second response response resource on each second response response resource.

Optionally, the second information includes an offset of the at least one second response response resource;

Optionally, the processing unit 702 is further configured to:

Determining, in the second information, an offset of the second response response resource corresponding to each first response response, before controlling the sending unit 703 to feed back the first response response on the second response response resource;

And determining, according to the first response response resource corresponding to each first response response, and the offset of the second response response resource corresponding to each first response response, determining a second response response resource corresponding to each first response response.

Optionally, the processing unit 702, when determining the offset of the second response response resource corresponding to each first response response in the second information, is specifically used to:

Obtaining, by the receiving unit 701, an identifier of the first downlink information from the network device;

And determining, according to the identifier of the first downlink information, an offset of the second response response resource corresponding to each first response response in the second information.

Receiving the second information from the network device according to the wireless network temporary identifier RNTI of the terminal device.

Optionally, the receiving unit 701 is further configured to receive fourth information from the network device, where the fourth information is used to indicate a third response response resource, and the frequency domain resource of the third response response resource is in the In the first BP, the third response response resource is used to carry the second response of the terminal device to the second downlink information;

Receiving, by the network device, the fifth information, where the fifth information is used to indicate the fourth response response resource, the frequency domain resource of the fourth response response resource is in the second BP, and the The four response response resources are used to carry the second response response;

The processing unit 702 is further configured to control the sending unit 703 to feed back the second response response on the fourth response response resource.

Optionally, the first downlink information is downlink information in a first time time unit set; the second downlink information is downlink information in a second time unit set; the first time unit set and the second The set of time units each contain at least one time unit.

The embodiment of the present application provides a terminal device, after the used BP is switched, the terminal device may not continue to send the first response response on the first response response resource, but may determine the frequency domain. The second response response resource of the resource in the second BP after the handover, so that the first response response may be fed back to the network device on the second response response resource, where the first response response is The response of the terminal device to the response of the first downlink information feedback.

Based on the above embodiment, the present application further provides a communication device for a network device, and the network device is applied to the mobile communication system shown in FIG. 1 for implementing the communication method in the foregoing embodiment. Referring to FIG. 8, the communication device 800 includes: a sending unit 801, a processing unit 802, and a receiving unit 803, wherein

The sending unit 801 is configured to send, to the terminal device, the first information, where the first information is used to indicate the first response response resource, the frequency domain resource of the first response response resource is in the first bandwidth part BP, and the The first response response resource is used to carry the first response response of the terminal device to the first downlink information;

The processing unit 802 is configured to switch the uplink frequency domain resource of the terminal device from the first BP to the second BP;

The sending unit 801 is further configured to send, to the terminal device, second information, where the second information is used to indicate a second response response resource, and the frequency domain resource of the second response response resource is in the second BP And the second response response resource is used to carry the first response response.

Optionally, the processing unit 802 is specifically configured to: when the uplink frequency domain resource of the terminal device is switched from the first BP to the second BP,

And transmitting, by the sending unit 801, the handover indication to the terminal device, where the handover indication is used to indicate that the uplink frequency domain resource of the terminal device is switched from the first BP to the second BP.

Optionally, the sending unit 801 is specifically configured to: when sending the second information to the terminal device:

Transmitting downlink control information DCI carrying the second information to the terminal device;

The sending unit 801 is specifically configured to: when sending a handover indication to the terminal device:

And transmitting the handover indication to the terminal device in the DCI.

Optionally, when the number of the first response responses is multiple, the receiving unit 803 is configured to, after the sending unit 801 sends the second information to the terminal device, the second response response. Receiving, by the resource, a binding response or a joint response of the first response response fed back by the terminal device.

Optionally, the sending unit 801 is further configured to:

Before the receiving unit 803 receives the binding response fed back by the terminal device, the number of the first response responses is sent to the terminal device.

Optionally, the sending unit 801 is specifically configured to: when the number of the first response is sent to the terminal device:

Sending, to the terminal device, third information carrying the number of the first response responses.

Optionally, the processing unit 802 is further configured to:

Before the receiving unit 803 receives the joint response that is sent by the terminal device, determining a physical uplink control channel PUCCH format format according to the number of the first response responses, and using the sending unit 801 to the terminal device And transmitting the PUCCH format, where the PUCCH format is used by the terminal device when sending the joint response.

Optionally, the sending unit 801 is further configured to:

And before the receiving unit 803 receives the joint response fed back by the terminal device, sending codebook information to the terminal device, where the codebook information indicates a location of the first response response in the codebook.

Optionally, the receiving unit 803 is specifically configured to:

After the sending unit 801 sends the second information to the terminal device, each second response that is fed back by the terminal device is received on each second response response resource in the at least one second response response resource. The first response response corresponding to the response resource.

Optionally, the sending unit 801 is further configured to:

After the processing unit 802 switches the uplink frequency domain resource of the terminal device from the first BP to the second BP, the identifier of the first downlink information is sent to the terminal device.

And transmitting, according to the radio network temporary identifier RNTI configured for the terminal device, the second information to the terminal device.

Optionally, the sending unit 801 is further configured to:

Before the processing unit 802 switches the uplink frequency domain resource of the terminal device from the first BP to the second BP, sending fourth information to the terminal device, where the fourth information is used to indicate The third response response resource, the frequency response resource of the third response response resource is in the first BP, and the third response response resource is used to carry the second response response of the terminal device to the second downlink information;

After the processing unit 802 switches the uplink frequency domain resource of the terminal device from the first BP to the second BP, sending, to the terminal device, fifth information, where the fifth information is used to indicate The fourth response response resource, the frequency domain resource of the fourth response response resource is in the second BP, and the fourth response response resource is used to carry the second response response.

The embodiment of the present application provides a network device, after the network device notifies the terminal device to use the frequency domain resource to transmit the first response response in the first response response resource in the first BP, and then uplink the frequency domain of the terminal device. The resource is switched from the first BP to the second BP, and then the network device continues to notify the terminal device to carry the first response response by using a second response response resource of the frequency domain resource in the second BP. The first response response is a response response of the terminal device to the first downlink information feedback. After the handover of the used BP, the terminal device may determine the second response response resource of the frequency domain resource in the second BP after the handover, so that the terminal response resource may be used on the second response response resource. The network device feeds back the first response response.

It should be understood that the division of each unit of the above communication device is only a division of a logical function, and may be integrated into one physical entity or physically separated in whole or in part. Moreover, these units may all be implemented in the form of software by means of processing component calls; or may be implemented entirely in hardware; some units may be implemented in software in the form of processing component calls, and some units may be implemented in hardware. For example, the processing unit in the communication device may be a separately set processing element, or may be implemented in one of the chips in the communication device, or may be stored in the memory of the communication device in the form of a program, by the communication device. A processing component calls and executes the function of the unit. The implementation of other units is similar. In addition, all or part of these units can be integrated or implemented independently. The processing elements described herein can be an integrated circuit with signal processing capabilities. In the implementation process, each step of the above method or each of the above units may be completed by an integrated logic circuit of hardware in the processor element or an instruction in a form of software. In addition, the receiving unit in the above communication device is a unit for controlling reception, and the information transmitted by the opposite end can be received by the receiving device of the communication device, such as an antenna and a radio frequency device. The transmitting unit in the above communication device is a unit for controlling transmission, and information can be transmitted to the opposite end through a transmitting device of the communication device, such as an antenna and a radio frequency device.

For example, the above units may be one or more integrated circuits configured to implement the above methods, such as one or more Application Specific Integrated Circuits (ASICs), or one or more microprocessors (digital) Signal processor, DSP), or one or more Field Programmable Gate Arrays (FPGAs). As another example, when one of the above units is implemented in the form of a processing component scheduler, the processing element can be a general purpose processor, such as a central processing unit (CPU) or other processor that can invoke the program. As another example, these units can be integrated and implemented in the form of a system-on-a-chip (SOC).

Based on the above embodiments, the embodiment of the present application further provides a communication device, which is used in a mobile device, and is used in the mobile communication system shown in FIG. 1 to implement the communication method provided by the foregoing embodiment. There is a function of the communication device 700 as shown in FIG. Referring to FIG. 9, the communication device 900 includes a transceiver 901, a processor 902, and a memory 903. The transceiver 901, the processor 902, and the memory 903 are connected to each other.

Optionally, the transceiver 901, the processor 902, and the memory 903 are connected to each other by a bus 904. The bus 904 can be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus. The bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 9, but it does not mean that there is only one bus or one type of bus.

The transceiver 901 is configured to receive and transmit data to implement communication with other devices (such as network devices) in the mobile communication system.

The processor 902 is configured to implement the communication method provided in the foregoing embodiment, including:

Receiving first information from the network device by using the transceiver 901, where the first information is used to indicate a first response response resource, the frequency domain resource of the first response response resource is in the first BP, and the first The response response resource is configured to carry the first response response of the terminal device to the first downlink information.

Receiving, by the transceiver 901, second information from the network device when the uplink frequency domain resource is switched from the first BP to the second BP, where the second information is used to indicate a second response response resource, The frequency domain resource of the second response response resource is in the second BP, and the second response response resource is used to carry the first response response;

The first response response is fed back by the transceiver 901 on the second response response resource.

Optionally, the processor 902 is further configured to:

Receiving, by the transceiver 901, a handover indication from the network device, where the handover indication is used to indicate that an uplink frequency domain resource of the terminal device is switched from the first BP to the second BP.

Optionally, when the processor 902 receives the second information from the network device by using the transceiver 901, the processor 902 is specifically configured to:

Receiving downlink control information DCI carrying the second information from the terminal device by using the transceiver 901;

The receiving, by the processor 902, the switching indication from the network device by using the transceiver 901, includes:

The DCI carrying the handover indication is received by the transceiver 901 from the terminal device.

Optionally, when the number of the first response responses is multiple, the processor 902 specifically uses the first response response when the transceiver 901 feeds back the first response response on the second response response resource. to:

And transmitting, by the transceiver 901, a binding response or a joint response of the first response response on the second response response resource.

Optionally, the processor 902 is further configured to:

Acquiring the number of the first response responses before the binding response is fed back by the transceiver 901 on the second response response resource;

Optionally, when acquiring the quantity of the first response, the processor 902 is specifically configured to:

The number of the first response responses is received by the transceiver 901 from the network device.

Optionally, when the processor 902 receives the number of the first response responses from the network device by using the transceiver 901, the processor 902 is specifically configured to:

The third information carrying the number of the first response responses is received by the transceiver 901 from the network device.

Optionally, when the processor 902 feeds back the joint response on the second response response resource by using the transceiver 901, the processor 902 is specifically configured to:

Optionally, when acquiring the PUCCH format, the processor 902 is specifically configured to:

Receiving, by the transceiver 901, the PUCCH format from the network device; or

Optionally, when the processor 902 generates the joint response, the processor 902 is specifically configured to:

Obtaining codebook information from the network device by using the transceiver 901, where the codebook information indicates a location of the first response response in the codebook;

The joint response is generated according to the location of the first response response in the codebook.

Optionally, when the processor 902 feeds back the first response response on the second response response resource by using the transceiver 901, the method 902 includes:

The first response response corresponding to each second response response resource is fed back to each of the second response response resources by the transceiver 901.

Optionally, the processor 902 is further configured to:

Determining, in the second information, an offset of the second response response resource corresponding to each first response response, before the first response response is fed back by the transceiver 901 on the second response response resource;

Optionally, the determining, by the processor 902, the offset of the second response response resource corresponding to each first response response in the second information is specifically used to:

Obtaining, by the transceiver 901, an identifier of the first downlink information from the network device;

The terminal device receives the second information from the network device by using the transceiver 901 according to the radio network temporary identifier RNTI of the terminal device.

Optionally, the processor 902 is further configured to:

Receiving fourth information from the network device by using the transceiver 901, where the fourth information is used to indicate a third response response resource, where a frequency domain resource of the third response response resource is in the first BP, and The third response response resource is configured to carry a second response response of the terminal device to the second downlink information.

Receiving, by the transceiver 901, fifth information from the network device, where the fifth information is used to indicate the fourth response response resource, and the frequency domain resource of the fourth response response resource is in the second BP And the fourth response response resource is used to carry the second response response;

The second response response is fed back by the transceiver 901 on the fourth response response resource.

The memory 903 is configured to store program instructions and the like. In particular, program instructions may include program code, the program code including computer operating instructions. The memory 903 may include a random access memory (RAM), and may also include a non-volatile memory such as at least one disk storage. The processor 902 executes the program instructions stored in the memory 903 to implement the above functions, thereby implementing the communication method provided by the above embodiments.

Based on the above embodiments, the embodiment of the present application further provides a communication device, which is used in a network device, where the network device is used in the mobile communication system shown in FIG. 1 to implement the communication method provided by the foregoing embodiment. There is a function of the communication device 800 as shown in FIG. Referring to FIG. 10, the communication device 1000 includes a transceiver 1001, a processor 1002, and a memory 1003. The transceiver 1001, the processor 1002, and the memory 1003 are connected to each other.

Optionally, the transceiver 1001, the processor 1002, and the memory 1003 are connected to each other by a bus 1004. The bus 1004 may be a PCI bus or an EISA bus or the like. The bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in FIG. 10, but it does not mean that there is only one bus or one type of bus.

The transceiver 1001 is configured to receive and transmit data to implement communication with other devices (such as terminal devices) in the mobile communication system.

The processor 1002 is configured to implement the communication method provided in the foregoing embodiment, including:

Transmitting, by the transceiver 1001, first information to the terminal device, where the first information is used to indicate a first response response resource, the frequency domain resource of the first response response resource is in the first bandwidth part BP, and the The first response response resource is used to carry the first response response of the terminal device to the first downlink information;

Switching the uplink frequency domain resource of the terminal device from the first BP to the second BP;

Transmitting, by the transceiver 1001, the second information to the terminal device, where the second information is used to indicate a second response response resource, and the frequency domain resource of the second response response resource is in the second BP, and The second response response resource is configured to carry the first response response.

Optionally, the processor 1002 is specifically configured to: when the uplink frequency domain resource of the terminal device is switched from the first BP to the second BP,

And transmitting, by the transceiver 1001, a handover indication to the terminal device, where the handover indication is used to indicate that an uplink frequency domain resource of the terminal device is switched from the first BP to the second BP.

Optionally, when the processor 1002 sends the second information to the terminal device by using the transceiver 1001, the processor 1002 is specifically configured to:

Transmitting, by the transceiver 1001, the downlink control information DCI carrying the second information to the terminal device;

When the processor 1002 sends a handover indication to the terminal device by using the transceiver 1001, the processor 1002 is specifically configured to:

And transmitting the handover indication to the terminal device in the DCI.

Optionally, when the number of the first response responses is multiple, the processor 1002 is further configured to:

After transmitting the second information to the terminal device by using the transceiver 1001, receiving, by the transceiver 1001, a binding response of the first response response fed back by the terminal device on the second response response resource Or a joint response.

Optionally, the processor 1002 is further configured to:

The number of the first response responses is transmitted to the terminal device by the transceiver 1001 before receiving the binding response fed back by the terminal device through the transceiver 1001.

Optionally, when the processor 1002 sends the number of the first response response to the terminal device by using the transceiver 1001, specifically, the processor 1002 is specifically configured to:

The third information carrying the number of the first response responses is sent to the terminal device by the transceiver 1001.

Optionally, the processor 1002 is further configured to:

Determining, according to the number of the first response responses, a physical uplink control channel PUCCH format format, where the PUCCH format is the terminal device, before receiving, by the transceiver 1001, the joint response that is sent by the terminal device Used in sending the joint response

The PUCCH format is transmitted to the terminal device through the transceiver 1001.

Optionally, the processor 1002 is further configured to:

Sending codebook information to the terminal device through the transceiver 1001 before receiving the joint response fed back by the terminal device by the transceiver 1001, the codebook information indicating that the first response response is in a code The location in this.

Optionally, the processor 1002 is further configured to:

After the second information is sent to the terminal device by the transceiver 1001, the transceiver device 1001 receives the terminal device on each second response response resource in the at least one second response response resource. The first response response corresponding to each second response response resource is fed back.

Optionally, the processor 1002 is further configured to:

After the uplink frequency domain resource of the terminal device is switched from the first BP to the second BP, the identifier of the first downlink information is sent to the terminal device by using the transceiver 1001.

And transmitting, by the transceiver 1001, the second information to the terminal device according to a radio network temporary identifier RNTI configured for the terminal device.

Optionally, the processor 1002 is further configured to:

Before the uplink frequency domain resource of the terminal device is switched from the first BP to the second BP, sending, by the transceiver 1001, fourth information to the terminal device, where the fourth information is used to indicate a third response response resource, the frequency domain resource of the third response response resource is in the first BP, and the third response response resource is used to carry the second response response of the terminal device to the second downlink information. ;

After the uplink frequency domain resource of the terminal device is switched from the first BP to the second BP, the transceiver 1001 sends a fifth information to the terminal device, where the fifth information is used to indicate The fourth response response resource, the frequency domain resource of the fourth response response resource is in the second BP, and the fourth response response resource is used to carry the second response response.

The memory 1003 is configured to store program instructions and the like. In particular, program instructions may include program code, the program code including computer operating instructions. The memory 1003 may include RAM and may also include non-volatile memory, such as at least one disk storage. The processor 1002 executes the program instructions stored in the memory 1003 to implement the above functions, thereby implementing the communication method provided by the above embodiments.

Please refer to FIG. 11 , which is a schematic structural diagram of a terminal device according to an embodiment of the present application. It may be the communication device for the terminal device in the above embodiment, for implementing the operation of the terminal device in the above embodiment. As shown in FIG. 11, the terminal device includes an antenna 1110, a radio frequency device 1120, and a baseband device 1130. The antenna 1110 is connected to the radio frequency device 1120. In the downlink direction, the radio frequency device 1120 receives the information transmitted by the network device through the antenna 1110, and transmits the information sent by the network device to the baseband device 1130 for processing. In the uplink direction, the baseband device 1130 processes the information of the terminal device and sends the information to the radio device 1120. The radio device 1120 processes the information of the terminal device and sends the information to the network device through the antenna 1110.

The baseband device 1130 can include a modem subsystem for effecting processing of various communication protocol layers of data. A central processing subsystem may also be included for implementing processing of the terminal device operating system and the application layer. In addition, other subsystems, such as a multimedia subsystem, a peripheral subsystem, etc., may be included, wherein the multimedia subsystem is used to implement control of the terminal device camera, screen display, etc., and the peripheral subsystem is used to implement connection with other devices. The modem subsystem can be a separately set chip. Optionally, the above terminal device can be implemented on the modem subsystem.

In one implementation, the various units shown in FIG. 11 are implemented in the form of a processing element scheduler, such as a subsystem of baseband apparatus 1130, such as a modem subsystem, including processing element 1131 and storage element 1132, processing element 1131 The program stored by the storage element 1132 is invoked to perform the method performed by the terminal device in the above method embodiment. In addition, the baseband device 1130 can also include an interface 1133 for interacting with the radio frequency device 1120.

In another implementation, the various units shown in FIG. 2 may be one or more processing elements configured to implement the methods performed by the above terminal devices, the processing elements being disposed on a subsystem of the baseband device 1130, such as modulation On the demodulation subsystem, the processing elements herein may be integrated circuits, such as one or more ASICs, or one or more DSPs, or one or more FPGAs, and the like. These integrated circuits can be integrated to form a chip.

For example, the various units shown in FIG. 7 can be integrated together in the form of a system-on-a-chip (SOC), for example, the baseband device 1130 includes a SOC chip for implementing the above method. The processing element 1131 and the storage element 1132 may be integrated in the chip, and the method executed by the above terminal device or the function of each unit shown in FIG. 7 may be implemented by the processing element 1131 in the form of a stored program of the storage element 1132; or, the chip may be Integrating at least one integrated circuit for implementing the method performed by the above terminal device or the function of each unit shown in FIG. 7; or, in combination with the above implementation manner, the function of the partial unit is implemented by the processing component calling program, and the functions of some units are It is realized in the form of an integrated circuit.

Regardless of the manner, in summary, the terminal device described above comprises at least one processing element and a storage element, wherein at least one processing element is used to perform the method performed by the terminal device provided by the above method embodiment. The processing element may perform some or all of the steps performed by the terminal device in the above method embodiment in a manner of executing the program stored in the storage element in a first manner; or in a second manner: by hardware in the processor element The integrated logic circuit performs some or all of the steps performed by the terminal device in the foregoing method embodiment in combination with the instructions; of course, some or all of the steps performed by the terminal device in the foregoing method embodiment may be performed in combination with the first mode and the second mode. .

The processing elements herein are the same as described above, and may be a general purpose processor, such as a Central Processing Unit (CPU), or may be one or more integrated circuits configured to implement the above method, for example: one or more specific An Application Specific Integrated Circuit (ASIC), or one or more digital singnal processors (DSPs), or one or more Field Programmable Gate Arrays (FPGAs).

The storage element can be a memory or a collective name for a plurality of storage elements.

Please refer to FIG. 12 , which is a schematic structural diagram of a network device according to an embodiment of the present application. It can be the communication device for the network device in the above embodiment, for implementing the operation of the network device in the above embodiment. As shown in FIG. 12, the network device includes an antenna 1210, a radio frequency device 1220, and a baseband device 1230. The antenna 1210 is coupled to the radio frequency device 1220. In the uplink direction, the radio frequency device 1220 receives the information transmitted by the terminal device through the antenna 1210, and transmits the information sent by the terminal device to the baseband device 1230 for processing. In the downlink direction, the baseband device 1230 processes the information of the terminal device and sends the information to the radio device 1220. The radio device 1220 processes the information of the terminal device and sends the information to the terminal device through the antenna 1210.

The baseband device 1230 may be a physical device or may include at least two devices that are physically separated, for example, including a CU and at least one DU. The DU can be integrated with the radio frequency device 1220 in one device or physically separated. There is no limitation on the division of the protocol layer between the at least two devices physically separated by the baseband device 1230. For example, the baseband device 1230 is configured to perform protocol layer processing such as RRC, PDCP, RLC, MAC, and physical layer, and may The division between any two protocol layers is such that the baseband device comprises two physically separate devices for performing the processing of the respective responsible protocol layers. For example, it is divided between RRC and PDCP, and, for example, it can be divided between PDCP and RLC. In addition, it may also be divided within the protocol layer, for example, a protocol layer part and a protocol layer above the protocol layer are divided into one device, and the remaining part of the protocol layer and the protocol layer below the protocol layer are divided into another device. . The above network device can be located on one of the physically separate at least two devices of the baseband device 1230.

The network device can include a plurality of baseband boards on which a plurality of processing elements can be integrated to achieve the desired functionality. The baseband device 1230 can include at least one baseband board, and the above network device can be located in the baseband device 1230. In one implementation, the various units shown in FIG. 8 are implemented in the form of a processing component scheduler, such as the baseband device 1230 including the processing component 1231 and The storage element 1232, the processing element 1231 invokes a program stored by the storage element 1232 to perform the method performed by the network device in the above method embodiment. In addition, the baseband device 1230 may further include an interface 1233 for interacting with the radio frequency device 1220, such as a common public radio interface (CPRI), when the baseband device 1230 and the radio frequency device 1220 are physically disposed. When together, the interface 1231 can be an intra-board interface, or an inter-board interface, where the board refers to a circuit board.

In another implementation, the various units shown in FIG. 8 may be one or more processing elements configured to implement the methods performed by the network device above, the processing elements being disposed on baseband device 1230, where the processing elements may be An integrated circuit, such as one or more ASICs, or one or more DSPs, or one or more FPGAs, and the like. These integrated circuits can be integrated to form a chip.

For example, the various units shown in FIG. 8 can be integrated together in the form of a system-on-a-chip (SOC), for example, the baseband device 1230 includes a SOC chip for implementing the above method. The processing element 1231 and the storage element 1232 may be integrated within the chip, and the method performed by the above network device or the functions of the respective units shown in FIG. 8 may be implemented by the processing element 1231 invoking the stored program of the storage element 1232. Alternatively, at least one integrated circuit may be integrated in the chip for implementing the method performed by the above network device or the functions of the respective units shown in FIG. Alternatively, in combination with the above implementation manner, the functions of the partial units are implemented by the processing component calling program, and the functions of the partial units are implemented by the form of an integrated circuit.

Regardless of the manner, in summary, the above network device includes at least one processing element and storage element, wherein at least one processing element is used to perform the method performed by the network device provided by the above method embodiments. The processing element may perform some or all of the steps performed by the network device in the above method embodiment in a manner of executing the program stored in the storage element in a first manner; or in a second manner: through hardware in the processor element The integrated logic circuit performs some or all of the steps performed by the network device in the foregoing method embodiment in combination with the instructions; of course, some or all of the steps performed by the network device in the foregoing method embodiment may be performed in combination with the first mode and the second mode. .

In summary, the embodiment of the present application provides a communication method and apparatus, in which, after the network device notifies the terminal device to use the frequency domain resource in the first BP, the first response response resource carries the first response response. And switching the uplink frequency domain resource of the terminal device from the first BP to the second BP, and then the network device continues to notify the terminal device to use the second response response of the frequency domain resource in the second BP. The resource carries the first response response. The first response response is a response response of the terminal device to the first downlink information feedback. After the BP used by the terminal device is switched, the terminal device may not continue to send the first response response on the first response response resource, but may determine that the frequency domain resource is in the handover. The second response within the second BP is responsive to the resource, such that the first response response can be fed back to the network device on the second response response resource.

Those skilled in the art will appreciate that embodiments of the present application can be provided as a method, system, or computer program product. Thus, the present application can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment in combination of software and hardware. Moreover, the application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.

This application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to the present application. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device. Means for implementing the functions specified in one or more of the flow or in a block or blocks of the flow chart.

The computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device. The apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.

These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device. The instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

It will be apparent to those skilled in the art that various modifications and changes can be made in the present application without departing from the spirit and scope of the application. Thus, it is intended that the present invention cover the modifications and variations of the present invention.

Claims

A communication method, comprising:

The terminal device receives the first information from the network device, where the first information is used to indicate the first response response resource, the frequency domain resource of the first response response resource is in the first BP, and the first response response resource is used by Transmitting, by the terminal device, a first response response to the first downlink information;

The terminal device receives second information from the network device when the uplink frequency domain resource is switched from the first BP to the second BP, where the second information is used to indicate the second response response resource, the second The frequency domain resource of the response response resource is in the second BP, and the second response response resource is used to carry the first response response;

The terminal device feeds back the first response response on the second response response resource.
The method of claim 1 wherein the method further comprises:

The terminal device receives a handover indication from the network device, where the handover indication is used to indicate that an uplink frequency domain resource of the terminal device is switched from the first BP to the second BP.
The method of claim 2, wherein the receiving, by the terminal device, the second information from the network device comprises:

Receiving, by the terminal device, downlink control information DCI carrying the second information from the terminal device;

Receiving, by the terminal device, the handover indication from the network device, including:

The terminal device receives, from the terminal device, the DCI carrying the handover indication.
The method of any of claims 1-3, wherein the second information is used to indicate a second response response resource.
The method of claim 4, wherein when the number of the first response responses is multiple, the terminal device feeds back the first response response on the second response response resource, including:

The terminal device feeds back a binding response or a joint response of the first response response on the second response response resource.
The method of claim 5, wherein before the terminal device feeds back the binding response on the second response response resource, the method further includes:

The terminal device acquires the number of the first response responses;

The terminal device generates the binding response according to the number of the first response responses and the number of the received first downlink information.
The method of claim 6, wherein the acquiring, by the terminal device, the number of the first response, comprises:

The terminal device receives the number of the first response responses from the network device.
The method of claim 7, wherein the receiving, by the terminal device, the number of the first response responses from the network device comprises:

The terminal device receives, from the network device, third information that carries the number of the first response responses.
The method according to claim 5, wherein the terminal device feeds back the joint response on the second response response resource, including:

The terminal device acquires a physical uplink control channel PUCCH format format, where the PUCCH format is used by the terminal device when sending the joint response;

Determining, by the terminal device, the first response response according to the received first downlink information, and generating the joint response according to the first response response;

The terminal device sends the joint response on the second response response resource according to the PUCCH format.
The method of claim 9, wherein the acquiring, by the terminal device, the PUCCH format comprises:

Receiving, by the terminal device, the PUCCH format from the network device; or

The terminal device acquires the number of the first response responses, and determines the PUCCH format according to the number of the first response responses.
The method according to claim 9 or 10, wherein the generating, by the terminal device, the joint response comprises:

The terminal device acquires codebook information from the network device, where the codebook information indicates a location of the first response response in the codebook;

The terminal device generates the joint response according to the location of the first response response in the codebook.
The method according to claim 11, wherein the codebook information is an identifier of the first downlink information or an index of a location of the first response response in the codebook.
The method according to any one of claims 1 to 3, wherein the second information is used to indicate at least one second response response resource, and each second response response resource corresponds to the first response response. A first response response.
The method of claim 13, wherein the terminal device feeds back the first response response on the second response response resource, including:

Determining, by the terminal device, the first response response according to the received first downlink information;

The terminal device feeds back a first response response corresponding to each second response response resource on each second response response resource.
The method of claim 13 or 14, wherein the second information comprises an offset of the at least one second response response resource;

The offset of the second response response resource corresponding to any one of the first response responses is:

An offset of a location of the second response response resource corresponding to the first response response relative to a location of the first response response resource corresponding to the first response response; or

An offset of an index of the second response response resource corresponding to the first response response relative to an index of the first response response resource corresponding to the first response response.
The method of claim 15, wherein the method further comprises: before the terminal device feeds back the first response response on the second response response resource, the method further comprising:

Determining, by the terminal device, an offset of the second response response resource corresponding to each first response response in the second information;

Determining, by the terminal device, the second response response corresponding to each first response response according to the first response response resource corresponding to each first response response and the offset of the second response response resource corresponding to each first response response Resources.
The method according to claim 16, wherein the terminal device determines, in the second information, an offset of the second response response resource corresponding to each first response response, including:

Obtaining, by the terminal device, an identifier of the first downlink information from the network device;

And determining, by the terminal device, an offset of the second response response resource corresponding to each first response response in the second information according to the identifier of the first downlink information.
The method according to any one of claims 13-17, wherein the receiving, by the terminal device, the second information from the network device comprises:

The terminal device receives the second information from the network device according to the radio network temporary identifier RNTI of the terminal device.
The method of any of claims 4-12, wherein the method further comprises:

The terminal device receives fourth information from the network device, where the fourth information is used to indicate a third response response resource, the frequency domain resource of the third response response resource is in the first BP, and the The third response response resource is configured to carry a second response response of the terminal device to the second downlink information.

The terminal device receives the fifth information from the network device, where the fifth information is used to indicate the fourth response response resource, and the frequency domain resource of the fourth response response resource is in the second BP, And the fourth response response resource is configured to carry the second response response;

The terminal device feeds back the second response response on the fourth response response resource.
The method according to claim 19, wherein the first downlink information is downlink information in a first time time unit set; the second downlink information is downlink information in a second time unit set; Both the set of time units and the set of second time units comprise at least one time unit.
A communication method, comprising:

The network device sends the first information to the terminal device, where the first information is used to indicate the first response response resource, the frequency domain resource of the first response response resource is in the first bandwidth part BP, and the first response response The resource is used to carry the first response of the terminal device to the first downlink information;

The network device switches the uplink frequency domain resource of the terminal device from the first BP to the second BP;

Transmitting, by the network device, the second information to the terminal device, where the second information is used to indicate a second response response resource, the frequency domain resource of the second response response resource is in the second BP, and the The second response response resource is configured to carry the first response response.
The method of claim 21, wherein the switching, by the network device, the uplink frequency domain resource of the terminal device from the first BP to the second BP comprises:

The network device sends a handover indication to the terminal device, where the handover indication is used to indicate that the uplink frequency domain resource of the terminal device is switched from the first BP to the second BP.
The method of claim 22 wherein:

Sending, by the network device, the second information to the terminal device, including:

Transmitting, by the network device, downlink control information DCI carrying the second information to the terminal device;

Sending, by the network device, a handover indication to the terminal device, including:

The network device carries the handover indication in the DCI and sends the handover indication to the terminal device.
The method of any of claims 21-23, wherein the second information is used to indicate a second response response resource.
The method according to claim 24, wherein, when the number of the first response responses is multiple, after the network device sends the second information to the terminal device, the method further includes:

Receiving, by the network device, a binding response or a joint response of the first response response fed back by the terminal device on the second response response resource.
The method of claim 25, wherein before the receiving, by the network device, the binding response of the terminal device feedback, the method further comprises:

The network device sends the number of the first response responses to the terminal device.
The method of claim 26, wherein the transmitting, by the network device, the number of the first response to the terminal device comprises:

The network device sends, to the terminal device, third information that carries the number of the first response.
The method of claim 25, wherein the method further comprises: before the network device receives the joint response fed back by the terminal device, the method further comprising:

Determining, by the network device, a physical uplink control channel PUCCH format format according to the number of the first response, and sending the PUCCH format to the terminal device, where the PUCCH format is that the terminal device is transmitting the Used in conjunction with the response.
The method of claim 28, wherein the method further comprises: before the network device receives the joint response fed back by the terminal device, the method further comprising:

The network device sends codebook information to the terminal device, where the codebook information indicates a location of the first response response in the codebook.
The method according to claim 29, wherein the codebook information is an identifier of the first downlink information, or an index of a location of the first response response in the codebook.
The method according to any one of claims 21 to 23, wherein the second information is used to indicate at least one second response response resource, and each second response response resource corresponds to the first response response. A first response response.
The method according to claim 31, wherein after the network device sends the second information to the terminal device, the method further includes:

The network device receives a first response response corresponding to each second response response resource fed back by the terminal device, on each second response response resource of the at least one second response response resource.
The method of claim 31 or 32, wherein the second information comprises an offset of the at least one second response response resource;

The offset of the second response response resource corresponding to any one of the first response responses is:

An offset of a location of the second response response resource corresponding to the first response response relative to a location of the first response response resource corresponding to the first response response; or

An offset of an index of the second response response resource corresponding to the first response response relative to an index of the first response response resource corresponding to the first response response.
The method according to claim 33, wherein after the network device switches the uplink frequency domain resource of the terminal device from the first BP to the second BP, the method further includes:

The network device sends the identifier of the first downlink information to the terminal device.
The method according to any one of claims 31 to 34, wherein the transmitting, by the network device, the second information to the terminal device comprises:

The network device sends the second information to the terminal device according to a radio network temporary identifier RNTI configured for the terminal device.
The method according to any one of claims 24 to 30, wherein before the network device switches the uplink frequency domain resource of the terminal device from the first BP to the second BP, The method also includes:

The network device sends fourth information to the terminal device, where the fourth information is used to indicate a third response response resource, the frequency domain resource of the third response response resource is in the first BP, and the The third response response resource is configured to carry a second response response of the terminal device to the second downlink information.

After the network device switches the uplink frequency domain resource of the terminal device from the first BP to the second BP, the method further includes:

The network device sends a fifth information to the terminal device, where the fifth information is used to indicate the fourth response response resource, and the frequency domain resource of the fourth response response resource is in the second BP, and The fourth response response resource is configured to carry the second response response.
The method according to claim 36, wherein the first downlink information is downlink information in a first time time unit set; the second downlink information is downlink information in a second time unit set; Both the set of time units and the set of second time units comprise at least one time unit.
A communication device for a terminal device, characterized by comprising means or means for performing the steps of any of the preceding claims 1 to 20.
A communication device for a terminal device, comprising at least one processing element and at least one storage element, wherein said at least one storage element is for storing a program and data, said at least one processing element for performing a right The method of any one of 1 to 20 is claimed.
A communication device for a network device, characterized by comprising means or means for performing the various steps of any of the preceding claims 21 to 37.
A communication device for a network device, comprising at least one processing element and at least one storage element, wherein said at least one storage element is for storing programs and data, said at least one processing element for performing rights The method of any one of 21 to 37 is claimed.
A computer storage medium having stored thereon a computer program for performing the method of any one of claims 1 to 37 when executed by a processor.