WO2023093533A1

WO2023093533A1 - Communication method and communication apparatus

Info

Publication number: WO2023093533A1
Application number: PCT/CN2022/130907
Authority: WO
Inventors: 谢曦; 张莉莉; 戴喜增; 刘江华
Original assignee: 华为技术有限公司
Priority date: 2021-11-29
Filing date: 2022-11-09
Publication date: 2023-06-01
Also published as: CN116193499A

Abstract

Provided in the present application are a communication method and a communication apparatus. The method comprises: sending first information, wherein the first information comprises resident information of a terminal device; receiving feedback information of the first information; and monitoring paging according to the feedback information. By means of the solution in the present application, in a scenario of spectrum aggregation, the paging accuracy of a UE in an RRC idle state or an RRC inactive state can be improved, and the paging overheads can be reduced.

Description

Communication method and communication device

This application claims the priority of the Chinese patent application with the application number 202111434215.0 and the title of the invention "communication method and communication device" submitted to the China Patent Office on November 29, 2021, the entire contents of which are incorporated in this application by reference.

technical field

The present application relates to the technical field of communication, and in particular, to a communication method and a communication device.

Background technique

In spectrum aggregation scenarios, for example, multiple carriers are aggregated through carrier aggregation (CA) technology or multi-band single serving cell (MBSC) technology, and radio resource control (radio resource control, RRC) is idle A user equipment (User Equipment, UE) in an RRC inactive state or an RRC inactive state may obtain configuration information of multiple carriers/cells, and then may select a cell/carrier to camp on according to the obtained configuration information of multiple carriers/cells.

When the network device needs to send downlink data to a UE in RRC idle state or RRC inactive state, the network device usually needs to trigger paging to enable the UE to initiate RRC connection establishment or restore RRC connection for service transmission. In the spectrum aggregation scenario, when a network device needs to page a certain UE, the network device usually needs to send paging on each carrier/cell, so the paging overhead is large and the paging accuracy is not high.

Contents of the invention

The present application provides a communication method and a communication device, which can improve paging accuracy and reduce paging overhead.

In a first aspect, the present application provides a communication method, the method is applied to a terminal device, and the method includes:

sending first information, where the first information includes camping information or paging monitoring information of the terminal device;

Receive feedback information of the first information.

In this application, for the spectrum aggregation scenario, the terminal device reports its own resident information to the network device, so that the network device can obtain information about the cell, carrier or frequency band where the terminal device resides, and then the network device initiates During paging, the exact cell or carrier or frequency band for paging can be determined without sending paging on all or multiple cells, carriers or frequency bands, which improves paging accuracy and reduces paging overhead. Wherein, the terminal device involved in the embodiment of the present application may be a terminal device in an RRC idle state or an RRC inactive state.

With reference to the first aspect, in a first possible implementation manner, the camping information of the terminal device indicates that the terminal device camps on a first cell or a first frequency domain resource;

The feedback information is used to confirm that the terminal device camps on the first cell or the first frequency domain resource.

With reference to the first aspect, in a second possible implementation manner, the camping information of the terminal device indicates that the terminal device camps on the first cell or the first frequency domain resource;

The feedback information is used to indicate that the terminal device camps on a second cell or a second frequency domain resource, where the first cell is different from the second cell, and the second frequency domain resource is different from the first frequency domain resource. A frequency domain resource is different.

In this application, the network device instructs the terminal device or changes the cell, carrier or frequency band where the terminal device resides according to the residency status in the network device, so as to balance the load of the cell, carrier or frequency band in the network and avoid a certain Cells, carriers, or frequency bands are overloaded, causing problems such as serious paging false alarms.

With reference to any one of the first aspect to the second possible implementation manner of the first aspect, in a third possible implementation manner, the first information includes resident information of the terminal device; the method further include:

Monitor paging according to the feedback information.

With reference to the third possible implementation manner of the first aspect, in a fourth possible implementation manner, the feedback information is used to confirm that the terminal device camps on the first cell or the first frequency domain resource;

The monitoring of paging according to the feedback information includes:

Monitoring paging in the first cell or the first frequency domain resource.

With reference to the third possible implementation manner of the first aspect, in a fifth possible implementation manner, the feedback information is used to indicate that the terminal device camps on a second cell or a second frequency domain resource;

The monitoring of paging according to the feedback information includes:

Monitoring paging in the second cell or the second frequency domain resource.

With reference to the first aspect, in a sixth possible implementation manner, the paging monitoring information indicates that the terminal device monitors paging in the first cell or the first frequency domain resource;

The feedback information is used to confirm that the terminal device monitors paging in the first cell or the first frequency domain resource.

With reference to the first aspect, in a seventh possible implementation manner, the paging monitoring information indicates that the terminal device monitors paging in the first cell or the first frequency domain resource;

The feedback information is used to instruct the terminal device to monitor paging in the second cell or the second frequency domain resource, where the first cell is different from the second cell, and the second frequency domain The resource is different from the first frequency domain resource.

With reference to the second possible implementation manner or the seventh possible implementation manner of the first aspect, in an eighth possible implementation manner, the method further includes:

According to the feedback information, camp on the second cell or the second frequency domain resource; or,

Monitoring paging in the second cell or the second frequency domain resource according to the feedback information.

With reference to any one of the eighth possible implementation manners from the first aspect to the first aspect, in a ninth possible implementation manner, the camping information or the paging monitoring information includes cell information, carrier information, or frequency band information;

Wherein, the first cell is a cell indicated by the cell information, the first frequency domain resource is a carrier indicated by the carrier information, and the first frequency domain resource is a frequency band indicated by the frequency band information. That is to say, the camping information or paging monitoring information in this application may be at the cell granularity, at the carrier granularity or at the frequency band granularity.

In combination with any one of the first aspect to the ninth possible implementation manner of the first aspect, in the tenth possible implementation manner,

The first information is carried in message A in the first random access procedure;

The feedback information is carried in message B in the first random access procedure.

In this application, the first random access procedure may be a two-step random access procedure. By sending the first information in message A in the two-step random access process and sending the feedback information in message B in the two-step random access process, signaling overhead can be saved.

In combination with any one of the first aspect to the ninth possible implementation manner of the first aspect, in the eleventh possible implementation manner,

The sending of the first information includes:

sending message 1 in the second random access process through the first random access resource, where the first random access resource is associated with the first information;

The receiving feedback information of the first information includes:

Receive message 2 or message 4 in the second random access procedure, where message 2 or message 4 includes the feedback information.

In this application, the second random access procedure may be a four-step random access procedure. By sending the second information in message 1 in the four-step random access process, and sending the feedback information in message 2 or message 4 in the four-step random access process, the purpose of signaling overhead can also be achieved. In addition, in the solution based on the four-step random access process, the network device acquires the cell or frequency domain resource where the terminal device resides through the connection between the random access resource used by the terminal device and the cell or frequency domain resource. The mapping relationship is determined (that is, the cell or the frequency domain resource where the terminal equipment resides is implicitly indicated through the random access resource), which has strong operability and high applicability.

With reference to the eleventh possible implementation manner of the first aspect, in a twelfth possible implementation manner, the method further includes:

receiving second information, where the second information is used to configure random access resources, where the random access resources include the first random access resources.

In this application, the network device sends the second information to the terminal device, so that the terminal device can determine the random access resource allocated by the network device for itself according to the second information, and then the terminal device can use the random access resource allocated by the network device. The resource initiates random access.

With reference to the eleventh possible implementation manner or the twelfth possible implementation manner of the first aspect, in a thirteenth possible implementation manner, the first random access resource includes a random access channel opportunity RO, and /or, random access preamble.

With reference to the first aspect, in a fourteenth possible implementation manner, the camping information or the paging monitoring information indicates a priority of a cell where the terminal device is camped on or a priority of a frequency domain resource where the terminal device is camped on.

In a second aspect, the present application provides a communication method, the method is applied to a terminal device, and the method includes:

receiving third information, where the third information includes camping information or paging monitoring information of the terminal device;

Determine a third cell or a third frequency domain resource according to the third information, the third cell is the cell where the terminal device is camped on or a cell that monitors paging, and the third frequency domain resource is the cell where the terminal device is Frequency domain resources to camp on or frequency domain resources to monitor paging.

In this application, for the spectrum aggregation scenario, the network device specifies the cell or the frequency domain resource to reside on to the terminal device (there may be one or more specified cells or frequency domain resources to reside on), Furthermore, the terminal device can determine which cell or which frequency domain resource to camp on according to the instruction of the network device. Therefore, when the subsequent network device initiates paging to the terminal device, it can determine the cell or frequency domain resource to send the paging, without sending paging on all the cells or frequency domain resources supported by the terminal device, which improves the accuracy of paging. performance, and reduced paging overhead. Wherein, the terminal device involved in the embodiment of the present application may be a terminal device in an RRC idle state or an RRC inactive state.

With reference to the second aspect, in a first possible implementation manner, the camping information or the paging monitoring information includes cell information, carrier information, or frequency band information;

Wherein, the cell indicated by the cell information includes the third cell, the carrier indicated by the carrier information includes the third frequency domain resource, and the frequency band indicated by the frequency band information includes the third frequency domain resource.

With reference to the second aspect or the first possible implementation manner of the second aspect, in a second possible implementation manner, the third information includes resident information of the terminal device;

The method also includes:

Monitoring paging on the third cell or the third frequency domain resource.

With reference to the second aspect, in a third possible implementation manner, the camping information or the paging listening information indicates a priority of a cell where the terminal device is camped on or a priority of a frequency domain resource where the terminal device is camped on.

In this application, by defining the priority relationship, and then the network device and the terminal device determine the cell or the frequency domain resource based on the same priority relationship and the third information, the cell or the frequency domain resource determined by the network device and the terminal device can be The resources in the same cell or frequency domain are conducive to the realization of precise paging.

With reference to the third possible implementation manner of the second aspect, in a fourth possible implementation manner, the camping cell of the terminal device indicated by the camping information or the paging monitoring information includes at least the third a cell and a fourth cell, and the priority of the third cell is higher than the priority of the fourth cell; or,

The resident frequency domain resource of the terminal device indicated by the resident information or the paging monitoring information includes at least a third frequency domain resource and a fourth frequency domain resource, and the priority of the third frequency domain resource is high Based on the priority of the fourth frequency domain resource.

With reference to the third possible implementation manner of the second aspect, in a fifth possible implementation manner, the camping cell of the terminal device indicated by the camping information or the paging monitoring information includes at least the third cell and fourth cell;

The determining the third cell or the third frequency domain resource according to the third information includes:

determining the third cell or the third frequency domain resource according to the third information and cell quality;

Wherein, the priority of the third cell is lower than the priority of the fourth cell, and the cell quality of the third cell is higher than the cell quality of the fourth cell.

In this application, the cell or the frequency domain resource where the terminal equipment resides can also be determined according to the priority relationship and the quality of the cell, and the realization of the solution is more diverse.

With reference to the second aspect, in a sixth possible implementation manner, the determining the third cell or the third frequency domain resource according to the third information includes:

determining the third cell or the third frequency domain resource according to the third information and the priority relationship;

The priority relationship includes the priority of the cell where the terminal device resides or the priority of the frequency domain resource where the terminal device resides.

With reference to the sixth possible implementation manner of the second aspect, in a seventh possible implementation manner, the third information indicates that the cell where the terminal device resides includes at least a third cell and a fourth cell, and the priority The relationship includes at least that the priority of the third cell is higher than the priority of the fourth cell; or,

The third information indicates that the resident frequency domain resource of the terminal device includes at least a third frequency domain resource and a fourth frequency domain resource, and the priority relationship includes at least that the priority of the third frequency domain resource is higher than that of the fourth frequency domain resource. The priority of the fourth frequency domain resource is described.

In a third aspect, the present application provides a communication method, the method is applied to a terminal device, and the method includes:

determining a third cell or a third frequency domain resource according to a priority relationship, where the third cell is the cell where the terminal device is camped on, and the third frequency domain resource is a frequency domain resource where the terminal device is camped on, or , the third cell is the cell where the terminal device monitors paging, and the third frequency domain resource is the frequency domain resource where the terminal device monitors paging; the priority relationship includes the camping of the terminal device The priority of the cell or the priority of the frequency domain resource where it resides;

Monitoring paging in the third cell or the third frequency domain resource.

For the spectrum aggregation scenario, by defining the camping rules, the network can determine the exact cell or frequency domain resource to send paging when initiating paging to the terminal device, without requiring all cells or frequency domain resources supported by the terminal device Send paging on the network, improve the accuracy of paging, and reduce the paging overhead. Wherein, the terminal device involved in the embodiment of the present application may be a terminal device in an RRC idle state or an RRC inactive state.

With reference to the third aspect, in a first possible implementation manner, the method further includes:

Sending at least one frequency domain resource or at least one frequency domain resource combination, where the at least one frequency domain resource or the at least one frequency domain resource combination includes frequency domain resources that the terminal device supports camping on, and where the at least one frequency domain resource Or at least one frequency domain resource combination includes the third frequency domain resource.

With reference to the third aspect, in a second possible implementation manner, the method further includes:

The determining the third cell or the third frequency domain resource according to the priority relationship includes:

Determine the third cell or the third frequency domain resource according to the third information and the priority relationship, where the third cell is a cell where the terminal device camps or a cell that monitors paging, the The third frequency domain resource is a frequency domain resource where the terminal device camps or a frequency domain resource that monitors paging.

With reference to the second possible implementation manner of the third aspect, in a third possible implementation manner, the camping information or the paging monitoring information includes cell information, carrier information, or frequency band information;

In a fourth aspect, the present application provides a communication method, the method is applied to a network device, and the method includes:

receiving first information, where the first information includes camping information or paging monitoring information of the terminal device;

Send feedback information of the first information.

With reference to the fourth aspect, in a first possible implementation manner, the camping information of the terminal device indicates that the terminal device camps on a first cell or a first frequency domain resource;

With reference to the fourth aspect, in a second possible implementation manner, the camping information of the terminal device indicates that the terminal device camps on the first cell or the first frequency domain resource;

With reference to any one of the fourth aspect to the second possible implementation manner of the fourth aspect, in a third possible implementation manner, the first information includes resident information of the terminal device; the method further include:

Send paging according to the feedback information.

With reference to the third possible implementation manner of the fourth aspect, in a fourth possible implementation manner, the feedback information is used to confirm that the terminal device camps on the first cell or the first frequency domain resource;

The sending paging according to the feedback information includes:

Sending paging in the first cell or the first frequency domain resource.

With reference to the third possible implementation manner of the fourth aspect, in a fifth possible implementation manner, the feedback information is used to indicate that the terminal device camps on the second cell or the second frequency domain resource;

The sending paging according to the feedback information includes:

Send paging in the second cell or the second frequency domain resource.

With reference to the fourth aspect, in a sixth possible implementation manner, the paging monitoring information instructs the terminal device to send paging in the first cell or the first frequency domain resource;

The feedback information is used to confirm that the terminal device sends paging in the first cell or the first frequency domain resource.

With reference to the fourth aspect, in a seventh possible implementation manner, the paging monitoring information instructs the terminal device to send paging in the first cell or the first frequency domain resource;

The feedback information is used to instruct the terminal device to send paging in the second cell or the second frequency domain resource, where the first cell is different from the second cell, and the second frequency domain The resource is different from the first frequency domain resource.

With reference to the seventh possible implementation manner of the fourth aspect, in an eighth possible implementation manner, the method further includes:

Sending paging in the second cell or the second frequency domain resource according to the feedback information.

With reference to any one of the fourth aspect to the eighth possible implementation manner of the fourth aspect, in a ninth possible implementation manner, the camping information or the paging monitoring information includes cell information, carrier information, or frequency band information;

Wherein, the first cell is a cell indicated by the cell information, the first frequency domain resource is a carrier indicated by the carrier information, and the first frequency domain resource is a frequency band indicated by the frequency band information.

In combination with any one of the fourth aspect to the ninth possible implementation manner of the fourth aspect, in the tenth possible implementation manner,

In combination with any one of the fourth aspect to the ninth possible implementation manner of the fourth aspect, in the eleventh possible implementation manner,

Said receiving the first information includes:

Receive message 1 in the second random access process through the first random access resource, where the first random access resource is associated with the first information;

The sending the feedback information of the first information includes:

sending message 2 or message 4 in the second random access procedure, where message 2 or message 4 includes the feedback information.

With reference to the eleventh possible implementation manner of the fourth aspect, in a twelfth possible implementation manner, the method further includes:

Sending second information, where the second information is used to configure random access resources, where the random access resources include the first random access resources.

With reference to the eleventh possible implementation manner or the twelfth possible implementation manner of the fourth aspect, in a thirteenth possible implementation manner, the first random access resource includes a random access channel opportunity RO, and /or, random access preamble.

With reference to the fourth aspect, in a fourteenth possible implementation manner, the camping information or the paging monitoring information indicates a priority of a cell where the terminal device is camped on or a priority of a frequency domain resource where the terminal device is camped on.

In a fifth aspect, the present application provides a communication method, the method is applied to a network device, and the method includes:

sending third information, where the third information includes camping information or paging monitoring information of the terminal device;

With reference to the fifth aspect, in a first possible implementation manner, the camping information or the paging monitoring information includes cell information, carrier information, or frequency band information;

With reference to the fifth aspect or the first possible implementation manner of the fifth aspect, in a second possible implementation manner, the third information includes resident information of the terminal device;

The method also includes:

Send paging on the third cell or the third frequency domain resource.

With reference to the fifth aspect, in a third possible implementation manner, the camping information or the paging monitoring information indicates a priority of a cell where the terminal device is camped on or a priority of a frequency domain resource where the terminal device is camped on.

With reference to the third possible implementation manner of the fifth aspect, in a fourth possible implementation manner, the camping cell of the terminal device indicated by the camping information or the paging monitoring information includes at least the third a cell and a fourth cell, and the priority of the third cell is higher than the priority of the fourth cell; or,

With reference to the third possible implementation manner of the fifth aspect, in a fifth possible implementation manner, the camping cell of the terminal device indicated by the camping information or the paging monitoring information includes at least the third cell and fourth cell;

With reference to the fifth aspect, in a sixth possible implementation manner, the determining the third cell or the third frequency domain resource according to the third information includes:

With reference to the sixth possible implementation manner of the fifth aspect, in a seventh possible implementation manner, the third information indicates that the cell where the terminal device resides includes at least a third cell and a fourth cell, and the priority The relationship includes at least that the priority of the third cell is higher than the priority of the fourth cell; or,

In a sixth aspect, the present application provides a communication method, the method is applied to a network device, and the method includes:

Sending paging in the third cell or the third frequency domain resource.

With reference to the sixth aspect, in a first possible implementation manner, the method further includes:

Receiving at least one frequency domain resource or at least one frequency domain resource combination, the at least one frequency domain resource or the at least one frequency domain resource combination includes frequency domain resources on which the terminal device supports camping, and the at least one frequency domain resource Or at least one frequency domain resource combination includes the third frequency domain resource.

With reference to the sixth aspect, in a second possible implementation manner, the method further includes:

With reference to the second possible implementation manner of the sixth aspect, in a third possible implementation manner, the camping information or the paging monitoring information includes cell information, carrier information, or frequency band information;

In a seventh aspect, the present application provides a communication device, the device is a terminal device, and the device includes:

a transceiver unit, configured to send first information, where the first information includes camping information or paging monitoring information of the terminal device;

The transceiving unit is configured to receive feedback information of the first information.

With reference to the seventh aspect, in a first possible implementation manner, the camping information of the terminal device indicates that the terminal device camps on a first cell or a first frequency domain resource;

With reference to the seventh aspect, in a second possible implementation manner, the camping information of the terminal device indicates that the terminal device camps on the first cell or the first frequency domain resource;

With reference to any one of the seventh aspect to the second possible implementation manner of the seventh aspect, in a third possible implementation manner, the first information includes resident information of the terminal device; the apparatus further include:

A processing unit, configured to monitor paging based on the feedback information of the transceiving unit.

With reference to the third possible implementation manner of the seventh aspect, in a fourth possible implementation manner, the feedback information is used to confirm that the terminal device camps on the first cell or the first frequency domain resource;

The monitoring of paging according to the feedback information includes:

Monitoring paging in the first cell or the first frequency domain resource.

With reference to the third possible implementation manner of the seventh aspect, in a fifth possible implementation manner, the feedback information is used to instruct the terminal device to camp on the second cell or the second frequency domain resource;

The monitoring of paging according to the feedback information includes:

Monitoring paging in the second cell or the second frequency domain resource.

With reference to the seventh aspect, in a sixth possible implementation manner, the paging monitoring information indicates that the terminal device monitors paging in the first cell or the first frequency domain resource;

With reference to the seventh aspect, in a seventh possible implementation manner, the paging monitoring information indicates that the terminal device monitors paging in the first cell or the first frequency domain resource;

With reference to the second possible implementation manner or the seventh possible implementation manner of the seventh aspect, in an eighth possible implementation manner, the processing unit is further configured to:

With reference to any one of the eighth possible implementation manners from the seventh aspect to the seventh aspect, in a ninth possible implementation manner, the camping information or the paging monitoring information includes cell information, carrier information, or frequency band information;

With reference to any one of the ninth possible implementation manners from the seventh aspect to the seventh aspect, in the tenth possible implementation manner, the first information is carried in message A in the first random access procedure; The feedback information is carried in message B in the first random access procedure.

With reference to any one of the seventh aspect to the ninth possible implementation manner of the seventh aspect, in the eleventh possible implementation manner, the sending of the first information includes:

The receiving feedback information of the first information includes:

With reference to the eleventh possible implementation manner of the seventh aspect, in a twelfth possible implementation manner, the transceiver unit is further configured to:

With reference to the eleventh possible implementation manner or the twelfth possible implementation manner of the seventh aspect, in a thirteenth possible implementation manner, the first random access resource includes a random access channel opportunity RO, and /or, random access preamble.

With reference to the seventh aspect, in a fourteenth possible implementation manner, the camping information or the paging monitoring information indicates a priority of a cell where the terminal device is camped on or a priority of a frequency domain resource where the terminal device is camped on.

In an eighth aspect, the present application provides a communication device, the device is a terminal device, and the device includes:

a transceiver unit, configured to receive third information, where the third information includes camping information or paging monitoring information of the terminal device;

A processing unit, configured to determine a third cell or a third frequency domain resource according to the third information, the third cell is a cell where the terminal device is camped on or a cell that monitors paging, and the third frequency domain resource is Frequency domain resource for the terminal device to camp on or frequency domain resource for monitoring paging.

With reference to the eighth aspect, in a first possible implementation manner, the camping information or the paging monitoring information includes cell information, carrier information, or frequency band information;

With reference to the eighth aspect or the first possible implementation manner of the eighth aspect, in a second possible implementation manner, the third information includes resident information of the terminal device;

The processing unit is also used for:

Monitoring paging on the third cell or the third frequency domain resource based on the transceiver unit.

With reference to the eighth aspect, in a third possible implementation manner, the camping information or the paging monitoring information indicates a priority of a cell where the terminal device is camped on or a priority of a frequency domain resource where the terminal device is camped on.

With reference to the third possible implementation manner of the eighth aspect, in a fourth possible implementation manner, the camping cell of the terminal device indicated by the camping information or the paging monitoring information includes at least the third a cell and a fourth cell, and the priority of the third cell is higher than the priority of the fourth cell; or,

With reference to the third possible implementation manner of the eighth aspect, in a fifth possible implementation manner, the camping cell of the terminal device indicated by the camping information or the paging monitoring information includes at least the third cell and fourth cell;

With reference to the eighth aspect, in a sixth possible implementation manner, the determining the third cell or the third frequency domain resource according to the third information includes:

With reference to the sixth possible implementation manner of the eighth aspect, in a seventh possible implementation manner, the third information indicates that the cell where the terminal device resides includes at least a third cell and a fourth cell, and the priority The relationship includes at least that the priority of the third cell is higher than the priority of the fourth cell; or,

In a ninth aspect, the present application provides a communication device, the device is a terminal device, and the device includes:

A processing unit, configured to determine a third cell or a third frequency domain resource according to a priority relationship, where the third cell is the cell where the terminal device resides, and the third frequency domain resource is the cell where the terminal device resides frequency domain resource, or the third cell is the cell where the terminal device monitors paging, and the third frequency domain resource is the frequency domain resource where the terminal device monitors paging; the priority relationship includes the The priority of the cell where the terminal equipment resides or the priority of the frequency domain resources where the terminal equipment resides;

The processing unit is configured to monitor paging in the third cell or the third frequency domain resource based on the transceiver unit.

With reference to the ninth aspect, in a first possible implementation manner, the device further includes:

The transceiving unit is configured to send at least one frequency domain resource or at least one frequency domain resource combination, where the at least one frequency domain resource or the at least one frequency domain resource combination includes frequency domain resources that the terminal device supports to reside on, The at least one frequency domain resource or at least one frequency domain resource combination includes the third frequency domain resource.

With reference to the ninth aspect, in a second possible implementation manner, the transceiver unit is further configured to:

With reference to the second possible implementation manner of the ninth aspect, in a third possible implementation manner, the camping information or the paging monitoring information includes cell information, carrier information, or frequency band information;

In a tenth aspect, the present application provides a communication device, the device is a network device, and the device includes:

a transceiver unit, configured to receive first information, where the first information includes camping information or paging monitoring information of the terminal device;

The transceiving unit is configured to send feedback information of the first information.

With reference to the tenth aspect, in a first possible implementation manner, the camping information of the terminal device indicates that the terminal device camps on the first cell or the first frequency domain resource;

With reference to the tenth aspect, in a second possible implementation manner, the camping information of the terminal device indicates that the terminal device camps on the first cell or the first frequency domain resource;

With reference to any one of the tenth aspect to the second possible implementation manner of the tenth aspect, in a third possible implementation manner, the first information includes resident information of the terminal device; the apparatus further include:

A processing unit, configured to send paging based on the feedback information by the transceiving unit.

With reference to the third possible implementation manner of the tenth aspect, in a fourth possible implementation manner, the feedback information is used to confirm that the terminal device camps on the first cell or the first frequency domain resource;

The sending paging according to the feedback information includes:

Sending paging in the first cell or the first frequency domain resource.

With reference to the third possible implementation manner of the tenth aspect, in a fifth possible implementation manner, the feedback information is used to indicate that the terminal device camps on the second cell or the second frequency domain resource;

The sending paging according to the feedback information includes:

Send paging in the second cell or the second frequency domain resource.

With reference to the tenth aspect, in a sixth possible implementation manner, the paging monitoring information instructs the terminal device to send paging in the first cell or the first frequency domain resource;

With reference to the tenth aspect, in a seventh possible implementation manner, the paging monitoring information instructs the terminal device to send paging in the first cell or the first frequency domain resource;

With reference to the seventh possible implementation manner of the tenth aspect, in an eighth possible implementation manner, the processing unit is further configured to:

With reference to any one of the tenth aspect to the eighth possible implementation manner of the tenth aspect, in a ninth possible implementation manner, the camping information or the paging monitoring information includes cell information, carrier information, or frequency band information;

In combination with any one of the tenth aspect to the ninth possible implementation manner of the tenth aspect, in the tenth possible implementation manner,

In combination with any one of the tenth aspect to the ninth possible implementation manner of the tenth aspect, in the eleventh possible implementation manner,

Said receiving the first information includes:

The sending the feedback information of the first information includes:

With reference to the eleventh possible implementation manner of the tenth aspect, in a twelfth possible implementation manner, the transceiver unit is further configured to:

With reference to the eleventh possible implementation manner or the twelfth possible implementation manner of the tenth aspect, in a thirteenth possible implementation manner, the first random access resource includes a random access channel opportunity RO, and /or, random access preamble.

With reference to the tenth aspect, in a fourteenth possible implementation manner, the camping information or the paging monitoring information indicates a priority of a cell where the terminal device is camped on or a priority of a frequency domain resource where the terminal device is camped on.

In an eleventh aspect, the present application provides a communication device, the device is a network device, and the device includes:

a transceiver unit, configured to send third information, where the third information includes camping information or paging monitoring information of the terminal device;

With reference to the eleventh aspect, in a first possible implementation manner, the camping information or the paging monitoring information includes cell information, carrier information, or frequency band information;

With reference to the eleventh aspect or the first possible implementation manner of the eleventh aspect, in a second possible implementation manner, the third information includes resident information of the terminal device;

The processing unit is also used for:

Sending paging on the third cell or the third frequency domain resource based on the transceiver unit.

With reference to the eleventh aspect, in a third possible implementation manner, the camping information or the paging monitoring information indicates a priority of a cell where the terminal device is camped on or a priority of a frequency domain resource where the terminal device is camped on.

With reference to the third possible implementation manner of the eleventh aspect, in a fourth possible implementation manner, the camping cell of the terminal device indicated by the camping information or the paging monitoring information includes at least the first Three cells and a fourth cell, and the priority of the third cell is higher than the priority of the fourth cell; or,

With reference to the third possible implementation manner of the eleventh aspect, in a fifth possible implementation manner, the camping cell of the terminal device indicated by the camping information or the paging monitoring information includes at least the first Three districts and four districts;

With reference to the eleventh aspect, in a sixth possible implementation manner, the determining the third cell or the third frequency domain resource according to the third information includes:

With reference to the sixth possible implementation manner of the eleventh aspect, in a seventh possible implementation manner, the third information indicates that the cell where the terminal device resides includes at least a third cell and a fourth cell, and the priority The level relationship at least includes that the priority of the third cell is higher than the priority of the fourth cell; or,

In a twelfth aspect, the present application provides a communication device, the device is a network device, and the device includes:

The processing unit is configured to send paging in the third cell or the third frequency domain resource based on the transceiver unit.

With reference to the twelfth aspect, in a first possible implementation manner, the device further includes:

The transceiving unit is configured to receive at least one frequency domain resource or at least one frequency domain resource combination, where the at least one frequency domain resource or the at least one frequency domain resource combination includes frequency domain resources where the terminal device supports camping, The at least one frequency domain resource or at least one frequency domain resource combination includes the third frequency domain resource.

With reference to the twelfth aspect, in a second possible implementation manner, the transceiver unit is further configured to:

With reference to the second possible implementation manner of the twelfth aspect, in a third possible implementation manner, the camping information or the paging monitoring information includes cell information, carrier information, or frequency band information;

In a thirteenth aspect, the present application provides a communication device. The device may be a terminal device, or a device in the terminal device, or a device that can be matched with the terminal device. Wherein, the communication device may also be a system on a chip. The communication device can execute the method described in the first aspect, the second aspect or the third aspect. The functions of the communication device may be realized by hardware, or may be realized by executing corresponding software by hardware. The hardware or software includes one or more units or modules corresponding to the above functions. The unit or module can be software and/or hardware. For the operations and beneficial effects performed by the communication device, reference may be made to the methods and beneficial effects described in the first aspect, the second aspect or the third aspect, and repeated descriptions will not be repeated.

In a fourteenth aspect, the present application provides a communication device. The device may be a network device, or a device in the network device, or a device that can be matched with the network device. Wherein, the communication device may also be a system on a chip. The communication device may execute the method described in the fourth aspect, the fifth aspect or the sixth aspect. The functions of the communication device may be realized by hardware, or may be realized by executing corresponding software by hardware. The hardware or software includes one or more units or modules corresponding to the above functions. The unit or module can be software and/or hardware. For the operations and beneficial effects performed by the communication device, reference may be made to the methods and beneficial effects described in the fourth aspect, the fifth aspect, or the sixth aspect, and repeated descriptions will not be repeated.

In a fifteenth aspect, the present application provides a communication device, which may be a terminal device, and the communication device includes a processor and a transceiver, and the processor and the transceiver are used to execute at least one computer stored in a memory A program or an instruction, so that the device implements the method of any one of the first aspect, the second aspect or the third aspect.

In a sixteenth aspect, the present application provides a communication device, which may be a terminal device, and the communication device includes a processor, a transceiver, and a memory. Wherein, the processor, the transceiver and the memory are coupled; the processor and the transceiver are used to implement the method in any one of the first aspect, the second aspect or the third aspect.

In a seventeenth aspect, the present application provides a communication device, which may be a network device, and the communication device includes a processor and a transceiver, and the processor and the transceiver are used to execute at least one computer stored in a memory A program or an instruction, so that the device implements the method according to any one of the fourth aspect, the fifth aspect or the sixth aspect.

In an eighteenth aspect, the present application provides a communication device, which may be a network device, and the communication device includes a processor, a transceiver, and a memory. Wherein, the processor, the transceiver and the memory are coupled; the processor and the transceiver are used to implement the method in any one of the fourth aspect, the fifth aspect or the sixth aspect.

In a nineteenth aspect, the present application provides a computer-readable storage medium, in which computer programs or instructions are stored. When the computer programs or instructions are executed by a computer, any one of the first to third aspects can be realized. method.

In a twentieth aspect, the present application provides a computer-readable storage medium, in which computer programs or instructions are stored. When the computer programs or instructions are executed by a computer, any one of the fourth to sixth aspects can be realized. Methods.

In the twenty-first aspect, the present application provides a computer program product including instructions, the computer program product includes computer program code, and when the computer program code is run on the computer, any of the first to third aspects can be realized. one method.

In the twenty-second aspect, the present application provides a computer program product including instructions, the computer program product includes computer program code, when the computer program code is run on the computer, any of the fourth to sixth aspects can be realized. one method.

In a twenty-third aspect, a chip system is provided, and the chip system includes a processor, and may further include a memory, for implementing any one of the aforementioned first to third aspects and any possible design method. The system-on-a-chip may consist of chips, or may include chips and other discrete devices.

According to a twenty-fourth aspect, a chip system is provided, and the chip system includes a processor and may further include a memory for implementing any one of the aforementioned fourth to sixth aspects and any possible design method. The system-on-a-chip may consist of chips, or may include chips and other discrete devices.

A twenty-fifth aspect provides a communication system, the communication system includes the terminal device described in the first aspect to the third aspect above, and the network device described in the fourth aspect to the sixth aspect.

Description of drawings

FIG. 1 is a schematic diagram of a network architecture of a communication system;

FIG. 2 is a schematic diagram of paging timing and paging cycle;

FIG. 3 is a schematic diagram of three types of carrier aggregation;

FIG. 4 is a schematic diagram of a scenario of carrier aggregation;

FIG. 5 is a schematic diagram of a scenario of a multi-band single-serving cell;

FIG. 6 is a schematic flow diagram of four-step random access based on CBRA;

FIG. 7 is a schematic flow diagram of two-step random access based on CBRA;

FIG. 8 is a schematic flow chart of four-step random access based on CFRA;

FIG. 9 is a schematic flow diagram of two-step random access based on CFRA;

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

FIG. 11 is another schematic flowchart of a communication method provided by an embodiment of the present application;

FIG. 12 is a schematic flowchart of sending feedback information based on a four-step random access process provided by an embodiment of the present application;

FIG. 13 is another schematic flowchart of sending feedback information based on the four-step random access process provided by the embodiment of the present application;

FIG. 14 is another schematic flowchart of a communication method provided by an embodiment of the present application;

Fig. 15 is another schematic flowchart of the communication method provided by the embodiment of the present application;

FIG. 16 is a schematic diagram of a scenario where a network device provides a residency rule provided by an embodiment of the present application;

FIG. 17 is a schematic diagram of a paging scenario provided by an embodiment of the present application;

FIG. 18 is a schematic diagram of another paging scenario provided by the embodiment of the present application;

FIG. 19 is a schematic structural diagram of a communication device provided by an embodiment of the present application;

FIG. 20 is a schematic structural diagram of another communication device provided by an embodiment of the present application;

Fig. 21 is a schematic structural diagram of another communication device provided by an embodiment of the present application;

Fig. 22 is a schematic structural diagram of another communication device provided by an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

In the description of the present application, unless otherwise specified, "/" means "or", for example, A/B may mean A or B. The "and/or" in this article is just an association relationship describing associated objects, which means that there can be three relationships, for example, A and/or B, which can mean: A exists alone, A and B exist at the same time, and B exists alone These three situations. In addition, "at least one" means one or more, and "plurality" means two or more. Words such as "first" and "second" do not limit the number and order of execution, and words such as "first" and "second" do not necessarily limit the difference.

In this application, words such as "exemplary" or "for example" are used to mean an example, illustration or description. Any embodiment or design described herein as "exemplary" or "for example" is not to be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete manner.

It should be understood that references to "an embodiment" throughout this specification mean that a particular feature, structure, or characteristic related to the embodiment is included in at least one embodiment of the present application. Thus, the various embodiments throughout the specification are not necessarily referring to the same embodiment. Furthermore, the particular features, structures or characteristics may be combined in any suitable manner in one or more embodiments.

The technical solution of the embodiment of the present application can be applied to various communication systems, for example: long term evolution (long term evolution, LTE) system, wireless fidelity (wireless-fidelity, WiFi) system, global interconnection microwave access (worldwide interoperability for microwave access, WiMAX) communication system, fifth generation (5th generation, 5G) system or new radio (new radio, NR) and future communication systems, etc., are not limited here.

Please refer to FIG. 1 , which is a schematic diagram of a network architecture of a communication system. As shown in FIG. 1 , the communication system may include one or more network devices 10 (only one is shown) and one or more terminal devices 20 communicating with each network device 10 . Fig. 1 is only a schematic diagram, and does not constitute a limitation on the applicable scenarios of the technical solution provided by the present application.

Wherein, the terminal device includes a device that provides voice and/or data connectivity to a user, for example, may include a handheld device with a wireless connection function, or a processing device connected to a wireless modem. The terminal equipment can communicate with the core network via the wireless access network, and the terminal equipment can include user equipment (user equipment, UE), wireless terminal equipment, mobile terminal equipment, and device-to-device communication (device-to-device, D2D) Terminal equipment, vehicle to everything (V2X) terminal equipment, machine-to-machine/machine-type communications (M2M/MTC) terminal equipment, Internet of things (IoT) ) terminal equipment, subscriber unit, subscriber station, mobile station, remote station, access point (access point, AP), remote terminal, access terminal, user terminal, user agent, or user equipment, etc. For example, it may include mobile phones (or "cellular" phones), computers with mobile terminal equipment, portable, pocket, hand-held, computer built-in mobile devices, and the like. For example, personal communication service (PCS) telephone, cordless telephone, session initiation protocol (session initiation protocol, SIP) telephone, wireless local loop (wireless local loop, WLL) station, personal digital assistant (personal digital assistant, PDA), and other devices; it can also include limited devices, such as devices with low power consumption, or devices with limited storage capabilities, or devices with limited computing capabilities.

Wherein, the network device may be a core network (core network, CN), or a radio access network (radio access network, RAN), or may also include a CN and a RAN. Among them, the RAN can include the new generation base station (generation node B, gNB), the evolved node B (evolved node B, eNB), the next generation evolved node B (next generation eNB, ng-eNB), wireless Backhaul equipment, radio network controller (radio network controller, RNC), node B (node B, NB), base station controller (base station controller, BSC), base transceiver station (base transceiver station, BTS), home base station ( (home evolved nodeB, HeNB) or (home node B, HNB)), baseband unit (baseBand unit, BBU), transmission and receiving point (transmitting and receiving point, TRP), transmission point (transmitting point, TP), mobile switching center etc., no limitation here.

The RAN may also include one or more centralized units (central unit, CU), one or more distributed units (distributed unit, DU), or one or more CUs and one or more DUs. Exemplarily, the function of the CU may be implemented by one entity or different entities. For example, the function of the CU is further divided, that is, the control plane and the user plane are separated and realized by different entities, which are the control plane CU entity (ie, the CU-CP entity) and the user plane CU entity (ie, the CU-UP entity). The CU-CP entity and the CU-UP entity can be coupled with the DU to jointly complete the functions of the access network equipment. In this way, part of the functions of the radio access network device can be realized through multiple network function entities. These network functional entities may be network elements in hardware devices, software functions running on dedicated hardware, or virtualized functions instantiated on a platform (for example, a cloud platform).

In the embodiment of the present application, the device for realizing the RAN function may be the RAN itself, or a device capable of supporting the RAN to realize the function, such as a chip system or a combined device or component that can realize the function of the access network device. The device may is installed in the RAN. In the embodiment of the present application, the system-on-a-chip may be composed of chips, or may include chips and other discrete devices.

Core network equipment is used to implement functions such as mobility management, data processing, session management, policy and charging. The names of devices implementing core network functions in systems with different access technologies may be different, which is not limited in this application. Taking 5G network as an example, the logical network elements of 5GC include: access and mobility management function (access and mobility management function, AMF), session management function (session management function, SMF), or user plane function (user plane function, UPF) wait. The device used to realize the function of the core network device may be a core network device, or a device capable of supporting the core network device to realize the function, such as a chip system or a combined device or component that can realize the function of the core network device. Installed in the core network equipment.

It should be noted that, unless otherwise specified, the network device in the embodiment of the present application can be understood as either CN or RAN, which is not limited here.

The relevant technical features involved in the embodiments of the present application are explained below. It should be noted that these explanations are for the purpose of making the embodiments of the present application easier to understand, and should not be regarded as limiting the scope of protection required by the present application.

1. Paging

The network can notify UEs in the RRC idle state (RRC_IDLE) or RRC inactive state (RRC_INACTIVE) to receive a paging message through paging, or the network can notify the UE in the RRC idle state (RRC_IDLE) through paging, UE in RRC inactive state (RRC_INACTIVE) or RRC connected state (RRC_CONNECTED) sends a short message (short message) to indicate system information (system information, SI) update or earthquake and tsunami warning/commercial mobile warning (earthquake and tsunami warning system/commercial mobile alert service, ETWS/CAMS).

Please refer to FIG. 2 , which is a schematic diagram of paging occasions and paging cycles. As shown in Figure 2, a UE in RRC idle state or RRC inactive state monitors its own paging occasion (PO) in each paging cycle (paging cycle) to determine whether the network has performed paging .

Generally speaking, a UE can calculate its own PO position according to its own UE identity information and paging-related parameters according to the calculation formula stipulated in the protocol. The PO positions calculated by different UEs may be the same, that is, there may be multiple UEs listening to the same PO position. .

Specifically, the basic flow of paging is as follows:

The network selects a certain paging range, and sends paging downlink control information (DCI) in the PO. Wherein, the paging range is the area where the network sends paging. The area is determined by the network. For example, for RRC idle state UEs, the network can use the registration area to which the UE belongs as the paging range; for RRC inactive state UEs, the network can notify the RAN to which the UE belongs. The area (RAN-based notification area, RNA) is used as the paging range. Wherein, the paging DCI may include scheduling information of paging message (including time-frequency domain information and other scheduling information of resources scheduling paging message) and/or short message (short message), etc., the specific content is as follows Table 1 shows:

Table 1

Wherein, after the UE receives the paging DCI sent by the network, it determines the subsequent operation according to the content of the paging DCI, specifically as follows:

In a possible implementation, if the paging DCI contains the scheduling information of the paging message, the UE receives and decodes the paging message on the physical downlink shared channel (PDSCH) according to the scheduling information, and then receives and decodes the paging message according to the paging message The content of the message determines the subsequent action. Wherein, the paging message includes UE identification information of one or more UEs paged by the network and/or access type information of the paged UEs. After decoding the paging message, the UE determines whether the paging message contains its own UE identity. Generally speaking, if the paging message does not contain its own UE identity, the UE ignores the paging message; if the paging message contains its own UE identity, the UE determines subsequent operations according to other contents in the paging message .

In a possible implementation, if the paging DCI contains a short message, the UE receives updated system information and/or earthquake and tsunami warning/commercial mobile warning according to the indication of the short message.

In a possible implementation, if the paging DCI includes the scheduling information and short message of the paging message, the UE receives the paging message and the updated system information and/or earthquake and tsunami warning/commercial mobile warning respectively according to the specified procedures .

It should be noted that, according to different network elements that trigger paging, paging can be divided into: CN paging triggered by core network (CN) and RAN paging triggered by radio access network (RAN) . The network may initiate CN paging to RRC_IDLE UE, and may initiate CN paging or RAN paging to RRC_INACTIVE UE.

Wherein, for the paging triggered by the CN (AMF) (ie, CN paging), it is generally due to the arrival of UE service in the RRC idle state, and the CN triggers the paging to enable the UE to initiate connection establishment for service transmission. The CN selects the range of paging, and sends the paging message (PAGING MESSAGE) to each base station participating in paging, and each base station sends paging. The paging range is generally within the registration area (registration area) of the UE. The registration area is composed of several tracking areas (tracking areas), and each tracking area includes one or more cells.

Among them, for the paging triggered by RAN (base station) (i.e. RAN paging), it is generally due to the arrival of service of RRC inactive UE, CN sends the service of UE to the base station, and the paging is triggered by the base station to restore the connection of UE. business transmission. The anchor base station of the UE selects the paging range, and sends the paging message to the base stations participating in the paging, and each base station sends the paging. The paging range is generally the RAN-based notification area (RAN-based notification area, RNA) to which the UE belongs. The RNA is composed of several cells, and the RNA belongs to the registration area of the UE.

2. RRC idle state (RRC_IDLE)

When the terminal device is in the RRC idle state, the terminal device does not retain radio resource control (radio resource control, RRC), context (context) and other information. The RRC context is a parameter for establishing communication between a terminal device and a network device. The RRC context may include security context, capability information of the terminal device, and the like. At the same time, the terminal device has not established a connection with the core network device. Generally speaking, a terminal device in the RRC idle state only wakes up periodically to receive paging messages.

3. RRC inactive state (RRC_INACTIVE)

When the terminal device is in the RRC inactive state, the RRC context is reserved between the terminal device and the network device. At the same time, the terminal device also establishes a connection with the core network device, that is, the core network device is in CN_CONNECTED (core network connected state). At this time, the process of switching to the connected state for data reception is relatively fast, and no additional core network signaling overhead is required. In addition, the terminal equipment in the RRC inactive state will also enter the dormant state. Therefore, the RRC inactive state can meet the requirements of reducing connection delay, signaling overhead and power consumption.

4. RRC connected state (RRC_CONNECTED)

When the terminal device is in the RRC connected state, the terminal device has established an RRC context. The parameters required for establishing communication between the terminal device and the network device have been acquired by both communication parties. The network device assigns a cell radio network temporary identifier (C-RNTI) to the connected terminal device. At the same time, the terminal device also establishes a connection with the core network device. At this time, if the terminal device is transmitting data, it is in the continuous receiving state until the data transmission is completed and enters the waiting state, and then switches to the connected state for discontinuous reception (discontinuous reception, DRX) to save power consumption. If there is still data to be transmitted subsequently, the terminal device returns to the continuous receiving state again. At this time, since the RRC context has been established, the switching time required for the UE to leave the connected state DRX and prepare for continuous reception is much shorter than the time for switching from the RRC idle state to the RRC connected state.

5. Carrier aggregation (CA)

Carrier aggregation is a technology that increases transmission bandwidth to meet the requirements of single user peak rate and system capacity improvement. The CA technology can aggregate two or more component carriers (CC) under one base station to achieve a larger transmission bandwidth and effectively improve the uplink and downlink transmission rates. According to its own capability, the UE decides how many carriers it can use for uplink and downlink transmission at the same time. Please refer to FIG. 3 , which is a schematic diagram of three types of carrier aggregation. As shown in Figure 3, the three types of CA include intra-band aggregation of contiguous CCs, intra-band aggregation of non-consecutive CCs, and inter-band aggregation.

Wherein, the primary cell (primary cell, PCell) is the cell where the UE establishes the initial connection, or the cell where the RRC connection is reestablished, or the primary cell designated during the handover process. PCell is responsible for RRC communication with UE. The CC corresponding to the PCell is called a primary component carrier (PCC). The secondary cell (secondary cell, SCell) is added through RRC connection reconfiguration after the initial security activation process, and is used to provide additional radio resources. The CC corresponding to the SCell is called a secondary carrier (Secondary component carrier, SCC).

Generally speaking, a UE configured with CA can be connected to 1 PCell and up to 31 SCells. These cells form the serving cell set of the UE. The serving cell set contains a maximum of 32 serving cells (that is, 1 PCell and up to 31 SCells). . CA is a UE-level feature, and different UEs may have different sets of PCells, SCells, and serving cells. The same cell may be a PCell for a certain UE, but may be an SCell for another UE. Please refer to FIG. 4, which is a schematic diagram of a scenario of carrier aggregation. As shown in FIG. 4 , one base station manages several cells, one of which serves as the PCell of the terminal device, and the remaining several cells serve as the SCell of the UE.

6. Multi-band single serving cell (MBSC)

Multi-band single-serving cell MBSC is also a technology to increase transmission bandwidth.

There are many discontinuous frequency division duplexing (FDD) frequency bands (bands) below 3GHz (Sub-3GHz). These frequency bands have limited individual bandwidth, but the aggregate bandwidth can reach a large one. In addition, due to the low frequency of these frequency bands, the uplink transmission conditions and coverage will be better. Therefore, especially for some scenarios that have a large demand for uplink transmission, it is very meaningful to aggregate and use these frequency bands.

CA is a way of spectrum aggregation. For example, for a UE in an RRC connected state, the network may configure one or more SCells for the UE. For UEs in RRC idle state/RRC inactive state, the network can broadcast the configuration information of one or more other cells (SCells) in the system information of a PCell, and the UE can obtain the configuration of multiple cells/carriers through the system information.

However, using the existing CA method to aggregate the above discontinuous FDD bands may have problems such as unnecessary management overhead and unoptimized delay. The reason is that the frequency domain locations of these non-contiguous frequency bands may be close, or may be deployed on the same site, that is, the carrier characteristics on these frequency bands are similar, so some measurement procedures and management operations do not actually need to be specific for each carrier implement. However, in the CA technology, it is assumed that each carrier is independently deployed, each serving cell is independently managed, and there is an activation delay in the use of the SCell.

The basic idea of MBSC is to aggregate the carriers on these discontinuous frequency bands into one serving cell, so as to simplify the management and operation of multiple carriers.

For a UE in an RRC idle state or an RRC inactive state, the UE may obtain the configuration information of each carrier in the MBSC through system information, for example. When it is necessary to initiate random access (random access, RA), the UE may consider factors such as UE capability and carrier signal quality to select an uplink carrier configured with random access resources to initiate random access.

For a UE in the RRC connected state, the network may schedule the UE to use frequency resources on one or more frequency bands within the MBSC. A downlink carrier in the MBSC can be used as a reference, and the results obtained by the UE for RRC measurement on this carrier can be applied to other carriers, that is, the UE can only perform measurement on one carrier instead of every carrier.

For example, please refer to FIG. 5 , which is a schematic diagram of a scenario of a multi-band single serving cell. As shown in Figure 5, the MBSC includes 3 uplink carriers and 3 downlink carriers.

7. Random access (RA)

In order to connect with a network device, the UE needs to obtain uplink and downlink synchronization with the network device. The UE can obtain downlink synchronization after receiving the reference signal sent by the network device. In order to establish uplink synchronization, UE needs to initiate random access.

Among them, random access can be divided into: four-step random access (4-step RA) and two-step random access (2-step RA). These two types of random access can be divided into contention-based random access (contention-based RA, CBRA) and non-contention-free random access (contention-free RA, CFRA).

(1) CBRA

In CBRA, a terminal device in a cell selects resources from shared random access resources to initiate random access, that is, a terminal device has the risk of selecting the same random access resource as another terminal device, and thus may experience conflict. Network devices use contention resolution mechanisms to handle this type of access request. In this process, the result of random access is uncertain, and not all random accesses are successful.

For example, please refer to FIG. 6 , which is a schematic flowchart of CBRA-based four-step random access. As shown in FIG. 6 , the CBRA-based four-step random access includes the following steps S601 to S604. in:

S601. The terminal device sends message 1 (Msg1) to the network device.

The terminal device selects a random access resource (such as random access channel occasions (RACH occasions, RO) and preamble (preamble)) from the shared random access resources, and sends a message 1 on the RO, where the message 1 includes the preamble code. The function of the preamble is to notify the network device that there is a random access request, and enable the network device to calculate the transmission delay between it and the terminal device, so that the network device can calibrate the uplink timing (uplink timing) and advance the calibration information through the timing ( timing advance, TA) time adjustment information to inform the terminal equipment. Generally speaking, after the terminal device sends the preamble, it will start the RA response window (RA response window) timer.

S602. The network device sends a message 2 (Msg2) to the terminal device.

The network device sends message 2 to the terminal device based on the received preamble. Wherein, the message 2 may also be called a random access response (random access response, RAR). The RAR may include a preamble identifier, timing advance (timing advance, TA) time adjustment information, an uplink grant (UL grant), and a temporary cell wireless network equipment temporary identifier (temporary C-RNTI, TC-RNTI), etc. Wherein, UL grant is used to indicate the transmission resource of message 3.

Generally speaking, if the terminal device receives the RAR within the RA response window, and the preamble identifier contained therein is consistent with the identifier of the preamble sent by the terminal device, the response is successful. The terminal device can then use the uplink resources in the RAR to send information.

If the terminal device does not receive the RAR within the RA response window, or the preamble identifier contained in the RAR received by the terminal device is inconsistent with the identifier of the preamble sent by the terminal device, the response fails. In this case, the terminal device may re-execute step S601 subsequently.

S603. The terminal device sends a message 3 (Msg3) to the network device.

The terminal device sends message 3 on the transmission resources indicated/scheduled by the UL grant. Wherein, message 3 includes uplink information, wherein the uplink information can be RRC setup request message (RRC setup request), RRC resume request (RRC resume request), beam failure recovery (beam failure recovery, BFR), or media access control ( media access control, MAC) control element (control element, CE), etc. The message 3 may also include identification information of the terminal device and the like.

Generally speaking, after the terminal device sends Msg3, it can start/restart the RA contention resolution timer.

S604. The network device sends message 4 (Msg4) to the terminal device.

After the terminal device sends Msg3, it waits for the network device to send message 4, wherein message 4 may include a contention resolution message, and the contention resolution message includes a contention resolution identifier of the terminal device. Optionally, message 4 may also include an RRC message, such as an RRC setup message (RRC setup), or an RRC resume message (RRC resume), etc., which is not limited here.

If the terminal device receives the contention resolution message during the running period of the RA contention resolution timer, and the contention resolution identifier of the terminal device contained therein is consistent with the identification information sent by the terminal device in Msg3, the random access procedure of the terminal device is successful.

If the terminal device does not receive a contention resolution message during the running of the RA contention resolution timer, or the contention resolution identifier of the terminal device contained in the received contention resolution message is inconsistent with the identification information sent by the terminal device in Msg3. In this case, the terminal device may subsequently reselect to perform step S601.

For example, please refer to FIG. 7 , which is a schematic flow chart of CBRA-based two-step random access. As shown in FIG. 7, the CBRA-based two-step random access includes the following steps S701 and S702. in:

S701. The terminal device sends a message A (MsgA) to the network device.

The terminal device sends MsgA to the network device, where the message A includes a preamble, a physical uplink shared channel (physical uplink shared channel, PUSCH) payload (payload) and the like. Wherein, the preamble is similar to the preamble sent by the above-mentioned Msg1 on the PRACH occasion, and the PUSCH load is similar to Msg3. That is to say, message A includes the contents of message 1 and message 3 in the aforementioned CBRA-based four-step random access.

Generally speaking, after the terminal device sends the MsgA, it can start/restart the MsgB contention resolution timer.

S702. The network device sends a message B (MsgB) to the terminal device.

The network device sends MsgB to the terminal device based on the received MsgA, where MsgB may include fallback RAR (fallbackRAR) or success RAR (successRAR).

In one implementation, if the network device successfully receives and decodes the MsgA sent by the terminal device (ie preamble and PUSCH payload), the network device replies to the terminal device with a success RAR (success RAR), wherein the success RAR may include the terminal device competition resolution identifier , timing advance (timing advance, TA) time adjustment information, C-RNTI, etc.

In one implementation, if the network device successfully receives the preamble sent by the decoding terminal device, but fails to receive the PUSCH payload sent by the decoding terminal device, the network device may reply a fallback RAR (fallback RAR) to the terminal device, wherein fallback RAR It may include preamble identifier, timing advance (timing advance, TA) time adjustment information, uplink grant (UL grant), TC-RNTI, etc.

Generally speaking, if the terminal device receives a success RAR during the running of the MsgB contention resolution timer, and the contention resolution identifier of the terminal device contained in it is consistent with the identification information sent by the terminal device in MsgA, the random access procedure of the terminal device is successful. If the terminal device receives a fallback RAR during the running of the MsgB contention resolution timer, and the preamble identifier contained in it is consistent with the identifier of the preamble sent by the terminal device, the terminal device then uses the uplink resource in the fallback RAR to send a message to the network device Sending a scheduled transmission is similar to sending message 3 in the above four-step random access. The terminal device then receives contention resolution from the network device, similar to receiving message 4 in the four-step random access described above. That is, the two-step random access falls back to the four-step random access.

If the terminal device does not receive success RAR or fallback RAR during the running of the MsgB contention resolution timer, or the terminal device contention resolution identifier contained in the received success RAR is inconsistent with the identification information sent by the terminal device in MsgA or the received fallback RAR The included preamble identifier does not match the identifier of the preamble sent by the terminal device in MsgA. In this case, the terminal device may re-execute step S701 subsequently.

(2) CFRA

In CFRA, terminal devices have dedicated/independent random access resources, so there is no conflict among terminal devices. That is to say, in CFRA-based four-step random access and two-step random access, since the network device allocates dedicated random access resources (such as preamble and/or RO) to the terminal device, the terminal device uses a dedicated random access resource (such as preamble and/or RO). Initiating random access based on the random access resources used by the terminal device, the network device can confirm which terminal device is the terminal device that initiates the random access based on the random access resource used by the terminal device, so there is no need for contention resolution.

For example, please refer to FIG. 8 , which is a schematic flowchart of four-step random access based on CFRA. As shown in Fig. 8, the CFRA-based four-step random access includes the following steps S801 to S804. in:

S801. The network device sends message 0 (Msg0) to the terminal device.

Wherein, message 0 includes a random access resource configuration, and the random access resource configuration may include a dedicated preamble and/or a dedicated RO. Understandably, the dedicated preamble and/or the dedicated RO may be allocated to a terminal device, or used to request (one type of) system information.

S802. The terminal device sends message 1 (Msg1) to the network device.

The terminal device uses the dedicated preamble and/or RO allocated by the network device to initiate random access, that is, the terminal device sends message 1 to the network device on the dedicated RO allocated by the network device, or the terminal device uses a dedicated preamble to send a message 1. Alternatively, the terminal device uses a dedicated preamble to send message 1 to the network device on a dedicated RO allocated by the network device.

S803. The network device sends a message 2 (Msg2) to the terminal device.

The network device sends message 2 to the terminal device based on the preamble received on the dedicated RO, or the network device sends message 2 to the terminal device based on the received dedicated preamble, or the network device sends message 2 to the terminal device based on the received preamble on the dedicated RO. Send message 2 to the terminal device with the dedicated preamble. Wherein, the message 2 may also be called a random access response (random access response, RAR). The RAR may include a preamble identifier, timing advance (timing advance, TA) time adjustment information, an uplink grant (UL grant) and a temporary cell wireless network equipment temporary identifier (temporary C-RNTI, TC-RNTI), etc.

For example, please refer to FIG. 9 , which is a schematic flowchart of CFRA-based two-step random access. As shown in FIG. 9 , the CFRA-based two-step random access includes the following steps S901 to S904. in:

S901. The network device sends message 0 (Msg0) to the terminal device.

Wherein, message 0 includes one or more of dedicated preamble, dedicated RO and PUSCH resources, etc., which are not limited here.

S902. The terminal device sends a message A (MsgA) to the network device.

The terminal device sends MsgA to the network device, where the message A includes a dedicated preamble, a physical uplink shared channel (physical uplink shared channel, PUSCH) payload (payload) and the like. Wherein, the dedicated preamble contained in the message A is similar to the preamble sent by Msg1 on the RO in FIG. 8 above, where the RO may be a dedicated RO. The PUSCH payload is similar to Msg3 in Figure 8 above. That is to say, message A includes two parts, one part is the preamble (for example, it may be a dedicated preamble) sent on the RO (for example, it may be a dedicated RO), and the other part is the preamble sent using the configured PUSCH resources. The RRC message, the identification information of the terminal device (that is, the content contained in message 2 in FIG. 8 ) and other content.

S903. The network device sends a message B (MsgB) to the terminal device.

Wherein, MsgB may also be called a random access response.

It should be noted that in the spectrum aggregation scenario (for example, in the case of multi-carrier aggregation through CA technology or MBSC technology), a UE in the RRC idle state or RRC inactive state may obtain multiple carriers/cells from the network device configuration information, and then at least one cell/carrier can be selected from the multiple carriers/cells to camp on according to the acquired configuration information of multiple carriers/cells (the following all take UE camping on one carrier/cell as an example Be explained).

Wherein, when the network device needs to send downlink data to a certain UE in RRC idle state or RRC inactive state, the network device usually needs to trigger paging so that the UE initiates RRC connection establishment or restores RRC connection for service transmission. In related technologies, in the spectrum aggregation scenario, when a network device needs to page a certain UE, the network device usually needs to send paging messages on each carrier/cell, but in fact the paged UE only camps on In one carrier/cell, the paging overhead will be relatively large. In addition, sending paging on some unrelated carriers/cells may also cause UEs on these unrelated carriers/cells to also receive paging, and these UEs are not the objects to be paged, which will affect unrelated UEs A paging false alarm is caused, which affects the power consumption of these UEs.

Based on this, the present application proposes a communication method, which can improve paging accuracy and reduce paging overhead in a spectrum aggregation scenario.

It should be noted that the "designation" described in the embodiment of the present application may also be understood as "instruction" or "configuration", etc., which is not limited here. "A certain information is carried in a certain message" described in the embodiments of this application can also be understood as "a certain information is included in a certain message", or it can be understood as "a certain information is carried in a certain message for transmission". This is not limited. The "residence cell" mentioned in the embodiment of the present application may be understood as a "residence cell", and the "residence frequency domain resources" may be understood as "residence frequency domain resources". Wherein, the frequency domain resources involved in the embodiments of the present application may be of carrier granularity or frequency band granularity, and for convenience of description, they are collectively referred to as frequency domain resources. It should be noted that the paging scenario for the terminal device involved in the embodiment of the present application may be the paging for the terminal device in the RRC idle state or the RRC inactive state in the spectrum aggregation scenario.

It should be noted that the relationship between the first cell, the first carrier and the first frequency band in the embodiment of the present application can be understood as: the first carrier is a carrier within the frequency range of the first frequency band, and the first cell is the first carrier The cell within the frequency range of the first cell, or the carrier corresponding to the first cell is the first carrier. Similarly, the understanding of the relationship between the second cell, the second carrier, and the second frequency band, and the understanding of the relationship between the third cell, the third carrier, and the third frequency band also satisfy the above requirements for the first cell, the first carrier and the description of the first frequency band will not be repeated here,

The communication method and communication device provided by this application are introduced in detail below:

Please refer to FIG. 10 . FIG. 10 is a schematic flowchart of a communication method provided by an embodiment of the present application. As shown in Figure 10, the communication method includes the following steps S1001 to S1003. The method execution body shown in Figure 10 can be a terminal device and/or a network device, or the method execution body shown in Figure 10 can also be a terminal device chip and/or a chip in a network device, etc., or the method execution body shown in FIG. 10 may also be other devices capable of executing the method, which is not limited here. For convenience of description, a terminal device will be used as an example for description below.

S1001. The terminal device sends first information to the network device.

In some feasible implementation manners, the terminal device sends the first information to the network device, and accordingly, the network device may receive the first information from the terminal device. Wherein, the first information may be understood as including resident information of the terminal device. It is understandable that the camping information of the terminal device may indicate that the terminal device camps on the first cell or the first frequency domain resource. Wherein, the camping information may include any one or more of cell information, carrier information, or frequency band information. It should be noted that the first cell is a cell indicated by the cell information, the first frequency domain resource is a carrier indicated by the carrier information, and the first frequency domain resource is a frequency band indicated by the frequency band information. Generally speaking, the cell information may be a cell identity (cell identity), or a cell index (index), etc. For example, the cell identity may be a physical cell identity (PCI) of a cell, or a public land mobile network (public land mobile network, PLMN)/non-public network (non-public network, NPN) within the cell identity or global cell identity (cell global identity, CGI), etc., and for example, the index of the cell can be the aggregated spectrum given by the network equipment Indexes assigned to the cells within , etc., are not limited here. The carrier information can be the identifier of the carrier, the index of the carrier, or the frequency of the carrier, etc. For example, the index of the carrier can be the index allocated by the network device to the carrier in the aggregated frequency spectrum, etc., and for example, the identifier or frequency of the carrier can be absolute Wireless channel number (absolute radio frequency channel number, ARFCN), etc., are not limited here. The frequency band information may be a frequency band indicator, a frequency band identifier, or a frequency band index, etc. For example, the frequency band index may be an index allocated by a network device to a frequency band in the aggregated frequency spectrum, etc., which is not limited here. Generally speaking, a frequency band (band) is a broader frequency domain range, and one or more carriers may exist on one band, and one carrier may correspond to one or more cells.

In a possible implementation, the first information may be carried in message A in the first random access procedure, where the first random access procedure may be a two-step random access procedure. That is to say, the terminal device may send the first information in message A of the two-step random access procedure. Wherein, the message A may also include identification information of the terminal device, etc., which is not limited here. Wherein, the identification information of a terminal device is used to mark a terminal device. Understandably, the message A may also include random access preamble, PUSCH load and other information, which is not limited here.

In another possible implementation, the first information may not be carried or sent in message A, but the first information is sent to the network device through a MAC CE, DCI or RRC message, that is to say, the first information may It is carried in MAC CE, DCI or RRC messages and sent to network devices. Wherein, the MAC CE for carrying the first information, the DCI or the RRC message may also include the identification information of the terminal device, etc., which is not limited here. It can be understood that the resources for sending the MAC CE carrying the first information, DCI or RRC messages, etc. may be configured by the network, and there is no limitation here.

It should be noted that, for the terminal device, the timing for sending the first information may be to send the first information to the network device after the terminal device selects or reselects to camp on a new cell.

Optionally, in some feasible implementation manners, the first information may also be understood as including paging monitoring information of the terminal device, where the paging monitoring information of the terminal device may indicate that the terminal device is in the first cell or the first frequency Domain resources listen for paging. Wherein, the paging listening information may include any one or more of cell information, carrier information, or frequency band information. For the understanding of the cell information, carrier information and frequency band information in the paging monitoring information (such as PCI, CGI, frequency band indication, etc.), please refer to the above-mentioned description for the camping information, about cell information, carrier information and the description of the specific expression form of the frequency band information will not be repeated here. Similarly, when the first information includes the paging monitoring information of the terminal device, the sending method of the first information is also the message A that can be carried in the first random access process, or carried in the MAC CE, or carried in the DCI, or carried in an RRC message, will not be repeated here.

Optionally, in some feasible implementation manners, the camping information may also be used to indicate the priority of the cell where the terminal device camps or the priority of the frequency domain resource where the terminal device camps. Optionally, the paging monitoring information may also be used to indicate the priority of the cell on which the terminal device performs paging monitoring or the priority of the frequency domain resource on which paging monitoring is performed. Here, the priority of the cell where the terminal device resides can be understood as including the cell where the terminal device resides and the priority relationship between the cells, and the priority of the frequency domain resources where the terminal device resides can be understood as including the frequency domain resource where the terminal device resides. Priority relationship between resources and frequency domain resources. Correspondingly, the priority of the cell that the terminal device performs paging monitoring can be understood as including the cell that the terminal device performs paging monitoring and the priority relationship between the cells, and the priority of the frequency domain resources that the terminal device performs paging monitoring can be understood as including The frequency domain resource for the terminal device to perform paging monitoring and the priority relationship of the frequency domain resource.

It should be noted that, for the convenience of understanding, in the following steps, the first information includes the camping information of the terminal device, and the camping information indicates that the terminal device camps in the first cell or the first frequency domain resource as an example for illustrative purposes. illustrate.

S1002. The terminal device receives feedback information of the first information from the network device.

In some feasible implementation manners, for the network device, after the network device receives the first information from the terminal device, the network device may process the received first information, and send a response to the first information to the terminal device Processed feedback information. Correspondingly, the terminal device may receive the feedback information of the first information from the network device. Generally, the feedback information may be used by the network device to confirm the first cell or the first frequency domain resource sent by the terminal device. Alternatively, the feedback information may also be used by the network device to reject the first cell or the first frequency domain resource sent by the terminal device. Alternatively, the feedback information can also be used by the network device to indicate a new cell or a new frequency domain resource for the terminal device while rejecting the first cell or the first frequency domain resource sent by the terminal device, or it can be understood as feedback information for the network The device indicates a new cell (such as the second cell) or a new frequency domain resource (such as the second frequency domain resource) for the terminal device; for example, if the network device knows that there are many terminals in a certain cell or a certain frequency domain resource If the device camps, the network device can allow the terminal device that subsequently instructs to camp on the cell or frequency domain resource to change the cell or frequency domain resource where it resides, so as to balance the load on each cell or frequency domain resource. For convenience of description, in this embodiment of the present application, the new cell indicated by the network device for the terminal device may be described as the second cell, and the new frequency domain resource indicated by the network device for the terminal device may be described as the second frequency domain resource. Wherein, the second cell is different from the first cell, and the second frequency domain resource is different from the first frequency domain resource.

Several functions of the feedback information will be described in detail below.

In a possible implementation manner, when the first information includes the camping information of the terminal device, and the camping information of the terminal device indicates that the terminal device camps on the first cell or the first frequency domain resource, if the network device indicates that it has After receiving or agreeing that the terminal device camps on the first cell or the first frequency domain resource, the feedback information is used to confirm that the terminal device camps on the first cell or the first frequency domain resource. Therefore, after receiving the feedback information, the terminal device may keep camping on the first cell or the first frequency domain resource according to the feedback information.

In a possible implementation manner, when the first information includes the camping information of the terminal device, and the camping information of the terminal device indicates that the terminal device camps on the first cell or the first frequency domain resource, if the network device indicates that it does not If the terminal device is allowed to camp in the first cell or the first frequency domain resource, the feedback information can be used to deny the terminal device to camp in the first cell or the first frequency domain resource, that is, the feedback information is used to indicate that the terminal device is not in the first cell Or the first frequency domain resource resides. Therefore, the terminal device can reselect a new cell or a new frequency domain resource to reside in according to the feedback information, and after reselecting a new cell or a new frequency domain resource to reside in, send a message indicating the new cell to the network device again or the camping information of the new frequency domain resource, until the network device agrees that the terminal device resides in the new cell or the new frequency domain resource. For example, it is assumed that after the terminal device receives feedback information from the network device that the terminal device resides in the first cell or the first frequency domain resource, the new cell reselected by the terminal device is the third cell, or the reselected new cell is the third cell. If the frequency domain resource is the third frequency domain resource, the terminal device may send camping information to the network device again, where the camping information indicates that the terminal device camps on the third cell or the third frequency domain resource.

In a possible implementation, when the first information includes the camping information of the terminal device, and the camping information of the terminal device indicates that the terminal device camps on the first cell or the first frequency domain resource, if the network device expresses disagreement If the terminal device camps in the first cell or the first frequency domain resource, and the network device needs to re-designate a new camping cell or frequency domain resource for the terminal device, the feedback information can be used to designate the terminal device in the second cell or frequency domain resource. The second frequency domain resource resides. Therefore, after receiving the feedback information, the terminal device may switch from the first cell or the first frequency domain resource where it originally camped on to camping on the second cell or the second frequency domain resource according to the feedback information.

It should be noted that, when the feedback information is used to indicate a new cell (for example, a second cell for schematic illustration) or a new frequency domain resource (for example, a second frequency domain resource for schematic illustration) for the terminal device, the feedback The information may also include any one or more of cell information, carrier information, or frequency band information, etc., wherein the second cell may be the cell indicated by the cell information in the feedback information, and the second frequency domain resource may be the cell indicated by the feedback information The carrier indicated by the carrier information in the information, or the second frequency domain resource may be the frequency band indicated by the frequency band information in the feedback information. For the understanding of the cell information, carrier information and frequency band information in the feedback information (for example, PCI, CGI, frequency band indication, etc.), please refer to the description of the camping information in the above step S1001. The description of specific manifestation forms of information and frequency band information will not be repeated here.

Similarly, when the first information includes the paging monitoring information of the terminal device, for the understanding of the feedback information for the paging monitoring information, please refer to the above-mentioned feedback for the camping information when the first information includes the camping information of the terminal device A description of the information. For example, the feedback information may be used to confirm that the terminal device monitors paging in the first cell or the first frequency domain resource, or the feedback information may be used to deny the terminal device to monitor paging in the first cell or the first frequency domain resource, or, The feedback information may be used to designate the terminal device to monitor paging in the second cell or the second frequency domain resource, etc., which will not be described in detail here.

It should be noted that, in a possible implementation, the feedback information may be carried in message B in the first random access procedure, where the first random access procedure may be a two-step random access procedure. That is to say, the network device can send the feedback information in the message B of the two-step random access procedure. Wherein, the message B may also include fallback RAR (fallbackRAR) or success RAR (successRAR), etc., which is not limited here. Optionally, the feedback information may also be carried in the rollback RAR or success RAR included in the message B, which is not limited here.

In a possible implementation, the feedback information may not be carried in the message B, but carried in the MAC CE, DCI or RRC message to be sent to the terminal device. Understandably, the resources for sending MAC CE, DCI, or RRC messages may be configured by the network device for the terminal device, and there is no limitation here.

In a possible implementation, the feedback information may also be an implicit indication. For example, the message B in the first random access process itself can be understood as a kind of feedback or described as having the function of feedback information, but the message B does not carry information other than the information related to the first random access process. In this case, if the terminal device successfully receives message B, it is considered that the network device has confirmed that the terminal device resides in the first cell or the first frequency domain resource; if the terminal device does not If the message B is successfully received, it is considered that the network device has not confirmed that the terminal device camps on the first cell or the first frequency domain resource. For another example, after the network device receives the first information from the terminal device, the network device may not send the feedback information of the first information. Correspondingly, after the terminal device sends the first information, the step of receiving the feedback information may not be performed ( That is, step S1002), that is, step S1002 in the embodiment of the present application is an optional step. In this case, the terminal device does not need to determine the cell or frequency domain resource where it will eventually camp based on the feedback information, that is, the terminal device may camp on the first cell or the first frequency domain resource, and the network device also defaults to the terminal device camping on the first cell or frequency domain resource. Stay on the first cell or the first frequency domain resource.

It should be noted that after receiving the feedback information from the network device, the terminal device can determine the cell or frequency domain resource where it camps, and keep in the RRC idle state or the RRC inactive state. For example, when the feedback information sent by the network device indicates that the terminal device camps on the first cell or the first frequency domain resource, the terminal device keeps camping on the first cell or the first frequency domain resource indicated by itself, and keeps In RRC idle state or RRC inactive state. For another example, when the feedback information indicates that the terminal device indicates the second cell or the second frequency domain resource, the terminal device camps on the second cell or the second frequency domain resource indicated by the network device, and remains in the RRC idle state or RRC inactive state.

S1003. The terminal device monitors the paging according to the feedback information.

In some feasible implementation manners, when the network device needs to page a certain terminal device, the network device may send a paging or a paging message on a cell or a frequency domain resource where the terminal device resides. Correspondingly, the terminal device can monitor the paging in the cell or frequency domain resource where it is camped, or it can be described as receiving the paging or paging message from the network device. For example, when the feedback information sent by the network device indicates that the terminal device camps on the first cell or the first frequency domain resource, the terminal device monitors paging on the first cell or the first frequency domain resource. For another example, when the feedback information indicates that the terminal device indicates the second cell or the second frequency domain resource, the terminal device monitors paging on the second cell or the second frequency domain resource.

In this embodiment of the application, for the scenario of spectrum aggregation, the terminal device reports its own camping information or paging monitoring information (such as the cell or carrier or frequency band in which the terminal device resides) to the network device, so that the network device can obtain the terminal device's camping information. The reserved cell or carrier or frequency band information, so that when the network device initiates paging to the terminal device, it can determine the exact cell or carrier or frequency band to send the paging without sending the page on all or multiple cells or carriers or frequency bands. paging. In this way, on the one hand, the unnecessary paging overhead of the network equipment is reduced, so that the paging can reach the paged terminal equipment more accurately and efficiently; False alarm. In addition, after the terminal device sends information about the cell, carrier, or frequency band where the terminal device resides, the network device can also instruct the terminal device or change the cell, carrier, or frequency band where the terminal device resides according to the camping situation in the network device, thereby balancing The load of cells, carriers, or frequency bands in the network can avoid problems such as serious paging false alarms caused by the overload of a certain cell, carrier, or frequency band.

Please refer to FIG. 11 . FIG. 11 is another schematic flowchart of the communication method provided by the embodiment of the present application. As shown in Figure 11, the communication method includes the following steps S1101 to S1104. The method execution body shown in Figure 11 can be a terminal device and/or a network device, or the method execution body shown in Figure 11 can also be a terminal device chip and/or a chip in a network device, or the subject of executing the method shown in FIG. 11 may also be other devices capable of executing the method, which is not limited here. For convenience of description, a terminal device will be used as an example for description below.

S1101. The terminal device receives second information from the network device.

In some feasible implementation manners, the network device broadcasts the second information, and correspondingly, the terminal device receives the second information from the network device. Understandably, the second information is used to configure random access resources. It can be understood that the random access resource configured based on the second information may include the first random access resource, and the first random access resource is associated with the first cell or the first frequency domain resource, or described as the first random access resource. Resource-associated first information, where the first information includes camping information or paging monitoring information of the terminal device, the camping information of the terminal device indicates that the terminal device camps in the first cell or the first frequency domain resource, and the paging The monitoring information instructs the terminal device to monitor paging in the first cell or the first frequency domain resource. For an understanding of the first information, reference may be made to the description of the first information in step S1001 of FIG. 10 above, which will not be repeated here.

Optionally, in addition to the first random access resource, the random access resource may also include one or more of the second random access resource, the third random access resource, and the like. That is to say, the second information may be used to configure at least one random access resource for the terminal device. Wherein, the random access resource may include a random access channel opportunity (RACH Occasion, RO), and/or a random access preamble (random access preamble). The RO can be understood as a time-frequency domain resource used to send the message 1 or the preamble in the random access process.

It should be noted that different random access resources may be associated with different cells or frequency domain resources, that is, one random access resource is associated with one cell or frequency domain resource. For example, the first random access resource is associated with the first cell or the first frequency domain resource, the second random access resource is associated with the second cell or the second frequency domain resource, and the third random access resource is associated with the third cell or the third frequency domain resource. Domain resources. Optionally, one random access resource may also be associated with multiple cells or multiple frequency domain resources. For example, the first random access resource may be associated with the first cell or the first frequency domain resource, or may be associated with the second cell or the second frequency domain resource, etc., which is not limited here. Optionally, multiple random access resources may also be associated with the same cell or the same frequency domain resource. For example, the first random access resource, the second random access resource and the third random access resource are all associated with the first cell or the first frequency domain resource. Wherein, the first random access resource, the second random access resource, and the third random access resource are different from each other; the first cell, the second cell, and the third cell are different from each other; the first frequency domain resource, the second frequency domain resources and the third frequency domain resources are different from each other. For the convenience of understanding, the following embodiments of the present application all take different random access resources associated with different cells or frequency domain resources as an example for schematic illustration. For example, the first random access resource is associated with the first information (that is, the first A cell or a first frequency domain resource) is taken as an example for description.

S1102. The terminal device sends first information to the network device on the first random access resource.

In some feasible implementation manners, the terminal device may send the first information to the network device on the first random access resource, and correspondingly, the network device may receive the first information from the terminal device on the first random access resource. That is to say, the UE can determine the random access resource associated with the cell, carrier, or frequency band according to the cell, carrier, or frequency band it is camping on, and initiate a random access resource on the random access resource associated with the cell, carrier, or frequency band. access. For the convenience of understanding, the embodiment of the present application takes the terminal device camping in the first cell or the first carrier or the first frequency band as an example for illustration, where the first carrier and the first frequency band below may be collectively referred to as the first frequency domain resources . Wherein, the first cell or the first frequency domain resource is associated with the first random access resource.

For example, assuming that the first random access resource includes the first RO, the UE may initiate random access on the first RO associated with the first cell on which it is camped or the first frequency domain resource. For another example, assuming that the first random access resource includes the first random access preamble, the UE can use the first random access preamble associated with the first cell or the first frequency domain resource where it is camped on to initiate access. For another example, assuming that the first random access resource includes the first RO and the first random access preamble, the UE may use the first random access preamble and initiate random access on the first RO.

In a possible implementation, the first information may be carried in message 1 in the second random access procedure, or it may also be understood that the first information is equivalent to message 1 in the second random access procedure, that is, message 1 is equal to the message 1 in the second random access procedure. a message. Wherein, the second random access process may be a four-step random access process. That is to say, the terminal device may send the first information in message 1 of the four-step random access procedure. Wherein, the message 1 or the first information may include a preamble and the like, which is not limited here.

It should be noted that, for a terminal device, the timing for initiating random access or sending message 1 (that is, the first information) may be after the terminal device selects or reselects to camp on a new cell. Wherein, message 1 may also be described as a random access request, which is not limited here.

S1103. The terminal device receives feedback information from the network device.

In some feasible implementation manners, the terminal device receives feedback information from the network device. Specifically, for the network device, after the network device receives the first information from the terminal device on the first random access resource, the network device can initiate random access according to the random access resource used by the terminal device, that is, the first A random access resource, determining the cell or the frequency domain resource where the terminal equipment resides, that is, determining that the terminal equipment resides in the first cell or the first frequency domain resource. Further, the network device may send feedback information of the first information to the terminal device, or it may be understood that the network device may send feedback information for the first random access resource associated with the first information to the terminal device, or it may be understood that the network device may Send feedback information for the first cell or the first frequency domain resource associated with the first random access resource to the terminal device.

Correspondingly, the terminal device may receive feedback information of the first information from the network device, or it may also be understood that the terminal device receives feedback information from the network device for the first random access resource associated with the first information. Generally, the feedback information may be used by the network device to confirm that the terminal device resides on the first cell or the first frequency domain resource associated with the first random access resource. Alternatively, the feedback information may also be used by the network device to deny the terminal device to camp on the first cell or the first frequency domain resource associated with the first random access resource. Alternatively, the feedback information may also be used by the network device to indicate a new cell or a new frequency domain for the terminal device while denying the terminal device to camp on the first cell or the first frequency domain resource associated with the first random access resource. The resources are camped on, or understood as feedback information used by the network device to indicate a new cell (for example, take the second cell as an example) or a new frequency domain resource (for example, take the second frequency domain resource as an example for illustration) for the terminal device ) to reside. Wherein, the second cell is different from the first cell, and the second frequency domain resource is different from the first frequency domain resource.

In a possible implementation, the feedback information may be carried in message 2 in the second random access procedure, where the second random access procedure may be a four-step random access procedure. That is to say, the network device may send the feedback information in the message 2 of the four-step random access procedure, and correspondingly, the terminal device may receive the message 2 in the second random access procedure, and the message 2 includes the feedback information. Wherein, besides the feedback information, the message 2 may also include uplink resource scheduling for the terminal device to send the message 3, preamble identifier, TA and TC-RNTI, etc., which are not limited here. Therefore, the terminal device may further use the uplink resources carried in the message 2 to send a message 3 to the network device, where the message 3 may include identification information of the terminal device, etc., which is not limited here. Wherein, the identification information of a terminal device is used to uniquely mark a terminal device. Correspondingly, after receiving the message 3 from the network device, the network device may send a message 4 to the terminal device. The message 4 includes content such as a contention resolution message and an RRC message, which are not limited here.

For example, please refer to FIG. 12 , which is a schematic flowchart of sending feedback information based on a four-step random access procedure provided by an embodiment of the present application. As shown in FIG. 12 , the communication process based on the four-step random access procedure includes: S1201. The network device sends second information to the terminal device. S1202. The terminal device sends message 1 to the network device on the first random access resource. The message 1 includes the first information, or it can be understood that the first information is equivalent to the message 1. S1203. The network device sends message 2 to the terminal device. The message 2 includes feedback information. S1204. The terminal device sends message 3 to the network device. Message 3 includes identification information of the terminal device. S1205. The network device sends message 4 to the terminal device.

In a possible implementation, the feedback information may be carried in message 4 in the second random access procedure, where the second random access procedure may be a four-step random access procedure. That is to say, the network device can send feedback information in message 4 of the four-step random access procedure. It should be noted that, in the scenario where the feedback information is carried in message 4, before sending message 4 carrying the feedback information, the network device may also send message 2 to the terminal device, and the message 2 includes information for the terminal device to send the message 3 uplink resource scheduling, therefore, when the terminal device receives message 2 from the network device, the terminal device can use the uplink resources scheduled by the network device to send message 3 to the terminal device, and the message 3 includes the identification information of the terminal device, etc. There is no limitation here.

For example, please refer to FIG. 13 . FIG. 13 is another schematic flowchart of sending feedback information based on a four-step random access procedure provided by an embodiment of the present application. As shown in FIG. 13 , the communication process based on the four-step random access process includes: S1301. The network device sends second information to the terminal device. S1302. The terminal device sends message 1 to the network device on the first random access resource. The message 1 includes the first information, or it can be understood that the first information is equivalent to the message 1. S1303. The network device sends message 2 to the terminal device. S1304. The terminal device sends message 3 to the network device. Message 3 includes identification information of the terminal device. S1305. The network device sends message 4 to the terminal device. The message 4 includes feedback information.

In a possible implementation, the feedback information may also be an implicit indication. For example, message 2 or message 4 in the second random access process itself can be understood as a kind of feedback or described as having the function of feedback information, but message 2 or message 4 does not carry information other than the information related to the second random access procedure. In this case, if the terminal device successfully receives message 2 or message 4, it is considered that the network device has confirmed that the terminal device is in the first cell or the first frequency Domain resource camping; if the terminal device fails to receive message 2 or message 4, it is considered that the network device has not confirmed that the terminal device is camping on the first cell or the first frequency domain resource. For another example, after the network device receives the first information from the terminal device, the network device may not send the feedback information of the first information. Correspondingly, after the terminal device sends the first information, the step of receiving the feedback information may not be performed ( That is, step S1103), that is, step S1103 in the embodiment of the present application is an optional step. In this case, the terminal device does not need to determine the cell or frequency domain resource where it will eventually camp based on the feedback information, that is, the terminal device may camp on the first cell or the first frequency domain resource, and the network device also defaults to the terminal device camping on the first cell or frequency domain resource. Stay on the first cell or the first frequency domain resource.

It should be noted that, when the feedback information is used to indicate a new cell (for example, a second cell for schematic illustration) or a new frequency domain resource (for example, a second frequency domain resource for schematic illustration) for the terminal device, the feedback The information may also include any one or more of cell information, carrier information, or frequency band information, etc., wherein the second cell may be the cell indicated by the cell information in the feedback information, and the second frequency domain resource may be the cell indicated by the feedback information The carrier indicated by the carrier information in the information, or the second frequency domain resource may be the frequency band indicated by the frequency band information in the feedback information. For the understanding of the cell information, carrier information and frequency band information in the feedback information (such as PCI, CGI, frequency band indication, etc.), please refer to the description of the residence information in step S1001 of FIG. 10 above. Information, the description of specific manifestations of carrier information and frequency band information will not be repeated here.

S1104. The terminal device monitors the paging according to the feedback information.

In the embodiment of the present application, for the spectrum aggregation scenario, the network device sends the second information to the terminal device, so as to configure the random access resource associated with the downlink frequency domain resource or cell for the terminal device based on the second information, so that The network device can determine the frequency domain resource or cell where the terminal device resides according to the random access resource used when the terminal device initiates random access, so as to perform precise paging on the terminal device. In this way, on the one hand, the unnecessary paging overhead of the network equipment is reduced, so that the paging can reach the paged terminal equipment more accurately and efficiently; False alarm. In addition, after the terminal device sends information about the cell, carrier, or frequency band where the terminal device resides, the network device can also instruct the terminal device or change the cell, carrier, or frequency band where the terminal device resides according to the camping situation in the network device, thereby balancing The load of cells, carriers, or frequency bands in the network can avoid problems such as serious paging false alarms caused by the overload of a certain cell, carrier, or frequency band.

Please refer to FIG. 14 . FIG. 14 is another schematic flowchart of a communication method provided by an embodiment of the present application. As shown in Figure 14, the communication method includes the following steps S1401 to S1403. The method execution body shown in Figure 14 can be a terminal device and/or a network device, or the method execution body shown in Figure 14 can also be a terminal device chip and/or a chip in the network device, or the subject of executing the method shown in FIG. 14 may also be other devices capable of executing the method, which is not limited here. For convenience of description, a terminal device will be used as an example for description below.

S1401. The terminal device receives third information from the network device.

In some feasible implementation manners, the network device sends the third information to the terminal device, and the terminal device receives the third information from the network device accordingly. The third information includes camping information or paging monitoring information of the terminal device, or it can be understood that the third information includes camping information or paging monitoring information configured by the network device for the terminal device. Here "configuration" can also be understood as "instruction" or "designation". That is to say, the at least one resident cell or at least one resident frequency domain resource indicated by the camping information may be a cell or a frequency domain resource designated by the network device for the terminal device and available for the terminal device to select when camping. The at least one cell or at least one frequency domain resource for monitoring paging indicated by the paging monitoring information is a cell or a frequency domain resource designated by the network device for the terminal device and available for selection by the terminal device during paging monitoring. For the convenience of description, in the following steps, the first information includes the resident information of the terminal device as an example for schematic illustration.

Generally speaking, the network device may determine, based on the frequency band capability supported by the terminal device, a cell or a frequency domain resource to indicate for the terminal device to camp on. That is to say, the terminal device will report capability information related to the frequency band it supports to the network device, and the capability information includes at least one frequency band or at least one combination of frequency bands supported by the terminal device. Wherein, one frequency band combination may include at least one frequency band. For example, assuming that the terminal device reports to the network device that a frequency band combination it supports is {700MHz, 800MHz, 900MHz}, the third information sent by the network device to the terminal device may include {700MHz}, or the third information may also include { 700MHz, 800MHz}, or, the third information may also include {700MHz, 900MHz}, etc., which is not limited here.

It should be noted that the frequency band combination can be marked by the identifier of the frequency band combination, which can be stipulated in the protocol or pre-configured or negotiated between the terminal device and the network, wherein the identifier of a frequency band combination is used to identify a frequency band combination. For example, the ID of the frequency band combination {700, 800, 900} MHz is 1, and the ID of the frequency band combination {800, 900} MHz is 2. It should be noted that each frequency band included in the frequency band combination may be a frequency band value, or may be marked by a frequency band identifier. For example, the frequency band combination is {700, 800, 900} MHz. For another example, the frequency band combination can also be {frequency band indicator 1, frequency band indicator 2, frequency band indicator 3}, where frequency band indicator 1/2/3 correspond to 700/800/900MHz respectively.

Wherein, the camping information includes cell information, carrier information, or frequency band information. Wherein, the cell indicated by the cell information includes the third cell, the carrier indicated by the carrier information includes the third frequency domain resource, and the frequency band indicated by the frequency band information includes the third frequency domain resource. That is to say, the cell indicated by the cell information sent by the network device in the embodiment of the present application may be one cell or multiple cells, the one cell may be the third cell, or the multiple cells include the third cell, and may also be Including the first cell, the second cell, the fourth cell, or the fifth cell, etc., which are not limited here. Correspondingly, the carrier indicated by the carrier information may be one carrier or multiple carriers, the one carrier may be the third carrier, or the multiple carriers may include the third carrier, and may also include the first carrier, the second carrier, The fourth carrier or the fifth carrier is not limited here. The frequency band indicated by the frequency band information may be one frequency band or multiple frequency bands, the one frequency band may be the third frequency band, or the multiple frequency bands may include the third frequency band, and may also include the first frequency band, the second frequency band, and the fourth frequency band Or the fifth frequency band, etc., which are not limited here.

For the understanding of the cell information, carrier information and frequency band information included in the camping information (such as PCI, CGI, frequency band indication, etc.), please refer to the camping in the first information in step S1001 of FIG. 10 above. When leaving the information description, the description of the specific expression forms of the cell information, carrier information and frequency band information will not be repeated here.

Optionally, the camping information sent by the network device may also indicate the priority of the cell in which the network device specifies for the terminal device to camp on or the priority of the frequency domain resource to camp on. That is to say, in addition to indicating at least one cell or at least one frequency domain resource designated by the network device for the terminal device, the camping information also indicates a priority relationship of the at least one cell or at least one frequency domain resource. Exemplarily, the camping cell of the terminal device indicated by the camping information includes at least a third cell and a fourth cell, and the priority of the third cell is higher than that of the fourth cell; Exemplarily, the camping cell indicated by the camping information The resident frequency domain resource of the terminal device includes at least a third carrier and a fourth carrier, and the priority of the third carrier is higher than that of the fourth carrier; for example, the resident frequency domain resource of the terminal device indicated by the resident information The resource includes at least a third frequency band and a fourth frequency band, and the priority of the third frequency band is higher than that of the fourth frequency band.

For example, assume that the third information sent by the network device to the terminal device includes {700MHz, 800MHz}, where 700MHz has priority 1, 800MHz has priority 2, and priority 1 is higher than priority 2, that is, the priority of 700MHz Priority above 800Mhz.

For another example, assume that the third information sent by the network device to the terminal device includes {700MHz, 800MHz, 900MHz}, where 700MHz has priority 1, 800MHz and 900MHz have priority 2, and priority 1 is higher than priority 2, That is, 800Mhz and 900MHz have the same priority, and the priority of 700MHz is higher than that of 800Mhz and 900MHz.

In a possible implementation manner, the third information may be carried in RRC signaling, that is, the network device may send the third information to the terminal device through the RRC signaling. Wherein, the RRC signaling may be an RRC release message (RRCRelease message), etc., which is not limited here.

It should be noted that when the network device in the embodiment of the present application is a RAN, for example, taking the RAN as a base station as an example, the base station may save the third information indicated to the terminal device as the context of the terminal device, or in During handover, the third information is forwarded to the new serving base station of the terminal device for storage, or the third information is sent to the core network device for storage.

S1402. The terminal device determines a third cell or a third frequency domain resource according to the third information.

In some feasible implementation manners, the terminal device may determine the third cell or the third frequency domain resource according to the third information. That is to say, the terminal device may select a cell or a frequency domain resource from at least one cell or at least one frequency domain resource included in the third information to camp on. Optionally, the terminal device may also select a cell or a frequency domain resource to camp on from at least one cell or at least one frequency domain resource included in the third information according to the third information and the cell quality. For the convenience of description, this embodiment of the present application uses a cell selected by the terminal device as the third cell, or a frequency domain resource selected by the terminal device as the third frequency domain resource as an example for illustration. That is to say, The third cell is the cell where the terminal device resides, and the third frequency domain resource is the frequency domain resource where the terminal device resides.

Understandably, when the third information only includes one cell (for example, the third cell) or one frequency domain resource (for example, the third frequency domain resource), the terminal device can choose to reside in the third cell included in the third information. on the cell or on the third frequency domain resource. When the third information includes two or more cells or frequency domain resources, the terminal device can select a cell from the two or more cells or frequency domain resources according to the priority relationship of the cells or frequency domain resources (for example, the third cell) or frequency domain resources (for example, the third frequency domain resource) to camp on. Alternatively, when the third information includes two or more cells or frequency domain resources, the terminal device may select the two or more cells or frequency domain resources according to the priority relationship and cell quality of the cells or frequency domain resources. A cell (such as the third cell) or a frequency domain resource (such as the third frequency domain resource) is selected from the resources to camp on. Or, when the third information includes two or more cells or frequency domain resources, the terminal device may randomly select a cell (such as the third cell) or a frequency domain resource from the two or more cells or frequency domain resources. domain resources (for example, third frequency domain resources), which is not limited here.

For example, assuming that the third information sent by the network device to the terminal device includes the frequency band combination {700MHz}, the terminal device may camp on 700MHz.

For another example, assuming that the third information sent by the network device to the terminal device includes the frequency band combination {700MHz, 800MHz}, where the priority of 700MHz is higher than the priority of 800Mhz, the terminal device can choose the frequency band with the highest priority to camp on , that is, the terminal equipment can reside on 700MHz.

For another example, assume that the third information sent by the network device to the terminal device includes the frequency band combination {700MHz, 800MHz}, where the priority of 700MHz is higher than that of 800Mhz, and the cell quality of the cell on 700MHz is higher than that on 800MHz The cell quality of the cell or the cell on 700MHz meets the quality requirement for camping. For example, if the cell quality is higher than a certain threshold, the terminal device may choose to camp on 700MHz.

For another example, assume that the third information sent by the network device to the terminal device includes the frequency band combination {700MHz, 800MHz}, wherein the priority of 700MHz is higher than that of 800Mhz, but the quality of the cell on 700MHz is lower than that on 800MHz The cell quality of the cell or the cell on 700MHz does not meet the quality requirements for camping. For example, if the cell quality is lower than a certain threshold, the terminal device can choose to camp on 800MHz.

For another example, assume that the third information sent by the network device to the terminal device includes the frequency band combination {700MHz, 800MHz}, wherein the priority of 700MHz is higher than the priority of 800Mhz, and the cell quality of the cell on 700MHz is lower than the preset The cell quality threshold value, if the cell quality of the 800MHz cell is higher than the preset cell quality threshold value, the terminal device can choose to camp on the 800MHz.

For another example, assume that the third information sent by the network device to the terminal device includes the frequency band combination {700MHz, 800MHz}, wherein the priority of 700MHz is higher than that of 800Mhz, wherein the cell quality of the cell on 700MHz is the same as that of the cell on 800MHz If the cell quality of all the cells is higher than the preset cell quality threshold, the terminal device may choose to camp on a frequency band with better cell quality. For example, assuming that the cell quality of the cell on 700MHz is lower than that of the cell on 800MHz, the terminal device may choose to camp on 800MHz.

For another example, assume that the third information sent by the network device to the terminal device includes the frequency band combination {700MHz, 800MHz, 900MHz}, wherein 800Mhz and 900MHz have the same priority, and the priority of 700MHz is higher than that of 800Mhz and 900MHz. level, the terminal equipment can give priority to reside in 700Mhz, followed by 800Mhz and 900Mhz. For example, assuming that the terminal device can search for a cell on 700Mhz or the quality of the cell on 700Mhz is acceptable, the terminal device camps on 700Mhz; At that time, the terminal device may also select a frequency band with better cell quality on the two frequency bands to camp on.

Optionally, in addition to the priority rules described above, the selection rule of the camped cell or the frequency domain resource to be camped on (for convenience of description, hereinafter referred to as the camping rule) may also be the two specified in the third message. Or one cell or frequency domain resource among two or more cells or frequency domain resources. For example, assuming that the third information sent by the network device to the terminal device includes the frequency band combination {700MHz, 800MHz}, where the camping rule corresponding to the frequency band combination {700MHz, 800MHz} is to preferentially camp on 800MHz, then the terminal device camps on 800MHz superior. Optionally, the camping rule may also be to select the lowest or highest frequency band in the frequency band combination supported by the terminal device to reside on. For example, assuming that the third information sent by the network device to the terminal device includes the frequency band combination {700MHz, 800MHz}, the camping rule may be that the terminal device chooses to camp on the lowest frequency band within the frequency band combination included in the third information, that is, resides at 700MHz . For another example, the camping rule may be that the terminal device chooses to camp on the highest frequency band in the frequency band combination included in the third information, that is, to camp on 800 MHz.

It should be noted that the resident rule may be pre-configured or specified by a protocol or provided by a network device. Wherein, pre-configuration can be understood as presetting a resident rule in the terminal device, for example, a manufacturer builds a resident rule in the terminal device. The protocol regulation can be understood as defining the residence rules in the protocol, provided by the network equipment, it can be understood that the terminal equipment can receive the residence rules from the network equipment, and then determine the third cell or the third cell according to the received residence rules and third information. Three frequency domain resources.

S1403. The terminal device monitors paging on the third cell or the third frequency domain resource.

In some feasible implementation manners, when the network device needs to page a certain terminal device, the network device may send a paging or a paging message on a cell or a frequency domain resource where the terminal device resides. Correspondingly, the terminal device can monitor the paging in the cell or frequency domain resource where it is camped, or it can be described as receiving the paging or paging message from the network device.

For example, in this embodiment of the present application, the network device may send paging information on at least one cell or at least one frequency domain resource included in the third information, and correspondingly, the terminal device may transmit paging information in the third cell or the third frequency domain resource. Listen for paging on the resource. Wherein, at least one cell includes a third cell, and at least one frequency domain resource includes a third frequency domain resource.

For another example, in this embodiment of the present application, the network device may also determine the third cell or the third frequency domain resource from at least one cell or at least one frequency domain resource included in the third information according to the camping rule, and determine the third cell or the third frequency domain resource in the third The paging or the paging message is sent to the terminal device on the cell or the third frequency domain resource, and correspondingly, the terminal device can monitor the paging on the third cell or the third frequency domain resource.

It should be noted that the network device that sends paging to the terminal device and the network device that sends the third information to the terminal device may be the same network device, or may be different network devices, which are determined according to actual application scenarios. No restrictions.

It should be noted that when the paging involved in this embodiment of the present application is CN paging, and the network device is a RAN (such as a base station), the core network device can provide the third information corresponding to the terminal device stored to the participating paging Furthermore, the base station participating in the paging may determine the cell or the frequency domain resource for sending the paging to the terminal device according to the third information corresponding to the terminal device. When the paging involved in this embodiment of the present application is RAN paging, and the network device is a RAN (such as a base station), the anchor base station may provide the stored third information corresponding to the terminal device to the base station participating in the paging, and then, The base station participating in the paging may determine the cell or the frequency domain resource to send paging to the terminal device according to the third information corresponding to the terminal device.

In this embodiment of the application, for the spectrum aggregation scenario, the network device specifies the cell or frequency domain resource to reside on to the terminal device (wherein, the specified cell or frequency domain resource to reside may be one or more ), and the network device and the core network save the cell or frequency domain resource where the terminal device is designated to reside, so that when the network device initiates paging to the terminal device, it can determine the cell or frequency domain resource to send the page without having to Send paging on all cells or frequency domain resources supported by the terminal equipment. In this way, on the one hand, the unnecessary paging overhead of the network is reduced, so that the paging can reach the paged terminal equipment more accurately and efficiently; police. In addition, since the cell or frequency domain resource where the terminal device resides is specified by the network device, the network device can reasonably determine the cell or frequency domain resource where the terminal device resides based on, for example, the residency situation in its own network, which can balance the The load on the cell or frequency domain resources can avoid problems such as serious paging false alarms caused by the overload of a certain frequency band/carrier/cell.

Please refer to FIG. 15 . FIG. 15 is another schematic flowchart of the communication method provided by the embodiment of the present application. As shown in Figure 15, the communication method includes the following steps S1501 to S1502. The method execution body shown in Figure 15 can be a terminal device and/or a network device, or the method execution body shown in Figure 15 can also be a terminal device chip and/or a chip in a network device, or the subject of executing the method shown in FIG. 15 may also be other devices capable of executing the method, which is not limited here. For convenience of description, a terminal device will be used as an example for description below.

S1501. The terminal device determines a third cell or a third frequency domain resource according to a priority relationship.

In some feasible implementation manners, the terminal device may determine the third cell or the third frequency domain resource according to the priority relationship. The priority relationship includes the priority of the cell that the terminal device chooses to camp on or the priority of the frequency domain resource that the terminal device chooses to camp on. Wherein, the priority relationship may be pre-configured or stipulated by a protocol or provided by a network device.

For example, please refer to FIG. 16 . FIG. 16 is a schematic diagram of a scenario of providing a residency rule based on a network device according to an embodiment of the present application. As shown in FIG. 16, S1601. The network device sends a residence rule to the terminal device. For example, a residency rule can be a priority relationship. S1602. The terminal device determines a third cell or a third frequency domain resource according to the priority relationship. Correspondingly, the network device determines the third cell or the third frequency domain resource according to the priority relationship. S1603. Paging in the third cell or the third frequency domain resource. Specifically, when the network device needs to page the terminal device, it sends paging on the third cell or the third frequency domain resource, and correspondingly, the terminal device monitors the paging on the third cell or the third frequency domain resource.

It should be noted that, for more understanding about the priority relationship, reference may be made to the description about the priority in FIG. 13 above, which will not be repeated here. Optionally, the rule for the terminal device to select the cell or frequency domain resource to camp on (ie, the camping rule) may not only be a priority relationship, but also specify two or more cells or frequency domain resources supported by the terminal device. A cell or frequency domain resource in . For example, assuming that the frequency band combination supported by the terminal device is {700MHz, 800MHz}, where the camping rule corresponding to the frequency band combination {700MHz, 800MHz} is to preferentially camp on 800MHz, the terminal device camps on 800MHz. Optionally, the camping rule may also be to select the lowest or highest frequency band in the frequency band combination supported by the terminal device to reside on. For example, assuming that the frequency band combination supported by the terminal device is {700MHz, 800MHz}, where the camping rule is that the terminal device selects the lowest frequency band within the supported frequency band combination to camp on, then the terminal device resides at 700MHz. For another example, the camping rule is that the terminal device selects the highest frequency band in the supported frequency band combination to camp on, and the terminal device camps on 800 MHz. For the convenience of understanding, the following embodiments of the present application all take the residency rule as the priority relationship as an example for illustration.

In a possible implementation, the terminal device may determine a cell or a frequency domain resource in which it resides according to the priority relationship and the frequency band-related capability of the terminal device itself. Generally speaking, the terminal device can also send capability information related to its own frequency band to the network device, that is, the terminal device can send at least one frequency domain resource or at least one frequency domain resource combination to the network device. Wherein at least one frequency domain resource or at least one combination of frequency domain resources includes frequency domain resources that the terminal device supports camping on, for example, at least one frequency domain resource or at least one combination of frequency domain resources includes a third frequency domain resource, optionally, at least A frequency domain resource or at least one frequency domain resource combination may also include a third frequency domain resource, a fourth frequency domain resource, etc., which are determined according to actual application scenarios, and are not limited here.

In another possible implementation, the terminal device may receive the third information from the network device, and then determine a cell or a frequency domain resource in which it resides according to the priority relationship and the third information. For an understanding of the third information, reference may be made to the description of the third information in FIG. 13 above, which will not be repeated here.

It should be noted that, for the convenience of understanding, the embodiment of the present application uses an example in which a terminal device can determine a cell or a frequency domain resource in which it resides according to a priority relationship and its own frequency band-related capabilities for illustration. Similarly, for the convenience of understanding, in the embodiment of the present application, the camping cell selected by the terminal device is the third cell, or the camping frequency domain resource is the third frequency domain resource for description. That is to say, the third cell is the cell where the terminal device resides, and the third frequency domain resource is the frequency domain resource where the terminal device resides, or it can be understood that the third cell is the cell where the terminal device monitors paging, and the third frequency domain resource The resource is a frequency domain resource for the terminal device to monitor paging.

S1502. The terminal device monitors paging in a third cell or a third frequency domain resource.

In some feasible implementation manners, when a network device needs to page a certain terminal device, the core network device or the anchor base station provides the frequency band information supported by the paged terminal device to the network device participating in the paging, and then the network device Based on the camping rules (such as priority relationship) and combined with the frequency band information supported by the terminal device, it can be determined that the terminal device resides in the third cell or the third frequency domain resource, and then the terminal device resides in the third cell or the third frequency domain resource. Send a page. Correspondingly, since the terminal device being paged determines to camp on the third cell or the third frequency domain resource according to the priority relationship, the terminal device may monitor paging in the third cell or the third frequency domain resource.

For example, please refer to FIG. 17 , which is a schematic diagram of a paging scenario provided by an embodiment of the present application. As shown in FIG. 17, S1701. Receive third information and a priority relationship from a network device. S1702. Determine a third cell or a third frequency domain resource according to the priority relationship and the third information. Wherein, both the network device and the terminal device determine the third cell or the third frequency domain resource based on the priority relationship and the third information. S1703. Paging on the third cell or the third frequency domain resource. Specifically, when the network device needs to page the terminal device, it sends paging on the third cell or the third frequency domain resource, and correspondingly, the terminal device monitors the paging on the third cell or the third frequency domain resource.

For example, please refer to FIG. 18 , which is a schematic diagram of another paging scenario provided by an embodiment of the present application. As shown in FIG. 18, S1801. The terminal device sends at least one frequency domain resource combination to the network device. S1802. The network device sends the priority relationship to the terminal device. S1803. Paging on the third cell or the third frequency domain resource. Wherein, both the network device and the terminal device determine the third cell or the third frequency domain resource from at least one combination of frequency domain resources based on the priority relationship. Furthermore, when the network device needs to page the terminal device, it sends paging on the third cell or the third frequency domain resource, and correspondingly, the terminal device monitors the paging on the third cell or the third frequency domain resource.

In this embodiment of the application, for the spectrum aggregation scenario, by defining the camping rules, and the network forwards the frequency band information supported by the terminal device between network elements during paging, so that when the network initiates paging for the terminal device, The exact cell or frequency domain resource for sending paging can be determined without sending paging on all cells or frequency domain resources supported by the terminal device. In this way, on the one hand, the unnecessary paging overhead of the network is reduced, so that the paging can reach the paged terminal equipment more accurately and efficiently; police. In addition, since the residency rules can be controlled by the network device (that is, the network device sends the residency rule to the terminal device), the network device can reasonably determine and adjust the residency rule according to the residency situation in its network, which can balance the network The load of internal cells or frequency domain resources can avoid problems such as serious paging false alarms caused by the overload of a certain cell or frequency domain resources.

The communication device provided by the present application will be described in detail below with reference to FIGS. 19 to 22 .

Please refer to FIG. 19 , which is a schematic structural diagram of a communication device provided by an embodiment of the present application. The communication apparatus shown in FIG. 19 may be used to execute part or all of the functions of the terminal device in the method embodiments described above in FIG. 10 to FIG. 18 . The device may be a terminal device, or a device in the terminal device, or a device that can be matched with the terminal device. Wherein, the communication device may also be a system on a chip. The communication device shown in FIG. 19 may include a transceiver unit 1901 and a processing unit 1902 . Wherein, the processing unit 1902 is configured to perform data processing. The transceiver unit 1901 is integrated with a receiving unit and a sending unit. The transceiver unit 1901 may also be called a communication unit. Alternatively, the transceiver unit 1901 may also be split into a receiving unit and a sending unit. The processing unit 1902 below is the same as the transceiver unit 1901 , and will not be described in detail below. in:

In the first implementation:

A transceiver unit 1901, configured to send first information, where the first information includes camping information or paging monitoring information of the terminal device;

The transceiving unit 1901 is configured to receive feedback information of the first information.

Optionally, the camping information of the terminal device indicates that the terminal device camps on the first cell or the first frequency domain resource;

Optionally, the first information includes resident information of the terminal device; the apparatus further includes:

The processing unit 1902 is configured to monitor paging based on the feedback information of the transceiving unit 1901.

Optionally, the feedback information is used to confirm that the terminal device camps on the first cell or the first frequency domain resource;

The monitoring of paging according to the feedback information includes:

Monitoring paging in the first cell or the first frequency domain resource.

Optionally, the feedback information is used to indicate that the terminal device camps on the second cell or the second frequency domain resource;

The monitoring of paging according to the feedback information includes:

Monitoring paging in the second cell or the second frequency domain resource.

Optionally, the paging monitoring information indicates that the terminal device monitors paging in the first cell or the first frequency domain resource;

Optionally, the processing unit 1902 is further configured to:

Optionally, the camping information or the paging monitoring information includes cell information, carrier information, or frequency band information;

Optionally, the first information is carried in message A in the first random access procedure; the feedback information is carried in message B in the first random access procedure.

Optionally, the sending the first information includes:

The receiving feedback information of the first information includes:

Optionally, the transceiver unit 1901 is also used for:

Optionally, the first random access resource includes a random access channel opportunity RO, and/or a random access preamble.

Optionally, the camping information or the paging listening information indicates the priority of the cell where the terminal device is camped on or the priority of the frequency domain resource where the terminal device is camped on.

In the second implementation:

a transceiver unit 1901, configured to receive third information, where the third information includes camping information or paging monitoring information of the terminal device;

The processing unit 1902 is configured to determine a third cell or a third frequency domain resource according to the third information, the third cell is a cell where the terminal device is camped on or a cell that monitors paging, and the third frequency domain The resource is a frequency domain resource where the terminal device camps or a frequency domain resource that monitors paging.

Optionally, the third information includes resident information of the terminal device;

The processing unit 1902 is also used for:

Monitoring paging on the third cell or the third frequency domain resource based on the transceiver unit 1901 .

Optionally, the camping cell of the terminal device indicated by the camping information or the paging listening information includes at least the third cell and the fourth cell, and the priority of the third cell is higher than that of the the priority of the fourth cell; or,

Optionally, the camping cell of the terminal device indicated by the camping information or the paging listening information includes at least the third cell and the fourth cell;

Optionally, the determining the third cell or the third frequency domain resource according to the third information includes:

Optionally, the third information indicates that the cell where the terminal device resides includes at least a third cell and a fourth cell, and the priority relationship includes at least that the priority of the third cell is higher than that of the fourth cell the priority of the ; or,

In a third implementation:

The processing unit 1902 is configured to determine a third cell or a third frequency domain resource according to a priority relationship, where the third cell is a cell where the terminal device resides, and where the third frequency domain resource is where the terminal device resides or, the third cell is the cell where the terminal device monitors paging, and the third frequency domain resource is the frequency domain resource where the terminal device monitors paging; the priority relationship includes the The priority of the cell where the terminal equipment resides or the priority of the frequency domain resource where the terminal device resides;

The processing unit 1902 is configured to monitor paging in the third cell or the third frequency domain resource based on the transceiver unit 1901 .

Optionally, the device also includes:

The transceiving unit 1901 is configured to send at least one frequency domain resource or at least one frequency domain resource combination, where the at least one frequency domain resource or the at least one frequency domain resource combination includes frequency domain resources that the terminal device supports to reside on , the at least one frequency domain resource or at least one combination of frequency domain resources includes the third frequency domain resource.

Optionally, the transceiver unit 1901 is also used for:

For other possible implementation manners of the communication apparatus, refer to the relevant description of the functions of the access network device in the above method embodiments corresponding to FIG. 10 to FIG. 18 , which will not be repeated here.

Please refer to FIG. 20 . FIG. 20 is a schematic structural diagram of another communication device provided by an embodiment of the present application. The communication apparatus shown in FIG. 20 may be used to execute part or all of the functions of the network device in the method embodiments described above in FIG. 10 to FIG. 18 . The device may be a network device, or a device in the network device, or a device that can be matched with the network device. Wherein, the communication device may also be a system on a chip. The communication device shown in FIG. 20 may include a transceiver unit 2001 and a processing unit 2002 . in:

In the first implementation:

A transceiver unit 2001, configured to receive first information, where the first information includes camping information or paging monitoring information of the terminal device;

The transceiving unit 2001 is configured to send feedback information of the first information.

Optionally, in a third possible implementation manner, the first information includes resident information of the terminal device; the apparatus further includes:

The processing unit 2002 is configured to send paging based on the feedback information based on the sending and receiving unit 2001 .

The sending paging according to the feedback information includes:

Sending paging in the first cell or the first frequency domain resource.

The sending paging according to the feedback information includes:

Send paging in the second cell or the second frequency domain resource.

Optionally, the paging monitoring information instructs the terminal device to send paging in the first cell or the first frequency domain resource;

Optionally, the processing unit 2002 is further configured to:

Optionally, the first information is carried in message A in the first random access procedure;

Optionally, the receiving the first information includes:

The sending the feedback information of the first information includes:

Optionally, the transceiver unit 2001 is also used for:

In the second implementation:

a transceiver unit 2001, configured to send third information, where the third information includes camping information or paging monitoring information of the terminal device;

The processing unit 2002 is configured to determine a third cell or a third frequency domain resource according to the third information, the third cell is a cell where the terminal device camps or a cell that monitors paging, and the third frequency domain The resource is a frequency domain resource where the terminal device camps or a frequency domain resource that monitors paging.

The processing unit 2002 is also used for:

Sending paging on the third cell or the third frequency domain resource based on the transceiver unit 2001 .

In a third implementation:

The processing unit 2002 is configured to determine a third cell or a third frequency domain resource according to a priority relationship, the third cell is the cell where the terminal device resides, and the third frequency domain resource is the cell where the terminal device resides or, the third cell is the cell where the terminal device monitors paging, and the third frequency domain resource is the frequency domain resource where the terminal device monitors paging; the priority relationship includes the The priority of the cell where the terminal equipment resides or the priority of the frequency domain resource where the terminal device resides;

The processing unit 2002 is configured to send paging in the third cell or the third frequency domain resource based on the transceiver unit 2001 .

Optionally, the device also includes:

The transceiving unit 2001 is configured to receive at least one frequency domain resource or at least one frequency domain resource combination, the at least one frequency domain resource or the at least one frequency domain resource combination includes frequency domain resources that the terminal device supports to reside on , the at least one frequency domain resource or at least one combination of frequency domain resources includes the third frequency domain resource.

Optionally, the transceiver unit 2001 is also used for:

Please refer to FIG. 21 . FIG. 21 is a schematic structural diagram of another communication device provided by an embodiment of the present application. As shown in FIG. 21 , the communication device may be the terminal device described in the embodiment of the present application, and is used to implement the functions of the terminal device in FIGS. 10 to 18 above. For ease of description, FIG. 21 only shows main components of the terminal device 2100. As shown in FIG. 21 , a terminal device 2100 includes a processor, a memory, a control circuit, an antenna, and an input and output device. The processor is mainly used to process communication protocols and communication data, control the entire terminal device 2100, execute software programs, and process data of the software programs. Memory is primarily used to store software programs and data. The control circuit is mainly used for the conversion of the baseband signal and the radio frequency signal and the processing of the radio frequency signal. Antennas are mainly used to send and receive radio frequency signals in the form of electromagnetic waves. Input and output devices, such as touch screens, display screens, microphones, keyboards, etc., are mainly used to receive data input by users and output data to users.

Taking the terminal device 2100 as a mobile phone as an example, when the terminal device 2100 is turned on, the processor can read the software program in the storage unit, interpret and execute the instructions of the software program, and process the data of the software program. When data needs to be sent wirelessly, the processor performs baseband processing on the data to be sent, and outputs the baseband signal to the control circuit, and the control circuit performs radio frequency processing on the baseband signal, and sends the radio frequency signal through the antenna in the form of electromagnetic waves. When data is sent to the terminal device 2100, the control circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor, and the processor converts the baseband signal into data and processes the data .

Those skilled in the art can understand that, for ease of description, FIG. 21 only shows a memory and a processor. In some embodiments, the terminal device 2100 may include multiple processors and memories. A storage may also be called a storage medium or a storage device, which is not limited in this embodiment of the present invention.

As an optional implementation, the processor may include a baseband processor and a central processing unit, the baseband processor is mainly used to process communication protocols and communication data, and the central processor is mainly used to control the entire terminal device 2100, Executing the software program, processing the data of the software program. The processor in FIG. 21 integrates the functions of the baseband processor and the central processing unit. Those skilled in the art can understand that the baseband processor and the central processing unit may also be independent processors, interconnected through technologies such as a bus. The terminal device 2100 may include multiple baseband processors to adapt to different network standards, the terminal device 2100 may include multiple central processors to enhance its processing capability, and various components of the terminal device 2100 may be connected through various buses. The baseband processor may also be expressed as a baseband processing circuit or a baseband processing chip. The central processing unit may also be expressed as a central processing circuit or a central processing chip. The function of processing the communication protocol and communication data can be built in the processor, or can be stored in the storage unit in the form of a software program, and the processor executes the software program to realize the baseband processing function.

In one example, the antenna and the control circuit having the function of transmitting and receiving can be regarded as the transmitting and receiving unit 2110 of the terminal device 2100 , and the processor having the function of processing can be regarded as the processing unit 2120 of the terminal device 2100 . As shown in FIG. 21 , a terminal device 2100 includes a transceiver unit 2110 and a processing unit 2120 . The transceiver unit may also be referred to as a transceiver, a transceiver, a transceiver device, and the like. Optionally, the device in the transceiver unit 2110 for realizing the receiving function may be regarded as a receiving unit, and the device in the transceiver unit 2110 for realizing the sending function may be regarded as a sending unit, that is, the transceiver unit 2110 includes a receiving unit and a sending unit. Exemplarily, the receiving unit may also be called a receiver, receiver, receiving circuit, etc., and the sending unit may be called a transmitter, transmitter, or transmitting circuit, etc.

Please refer to FIG. 22 . FIG. 22 is a schematic structural diagram of another communication device provided by an embodiment of the present application. As shown in FIG. 22 , the communication device may be the network device described in the embodiment of the present application, and is used to realize the functions of the network device in FIGS. 10 to 18 above. The network device 22 includes: a baseband device 221 , a radio frequency device 222 , and an antenna 223 . In the uplink direction, the radio frequency device 222 receives the information sent by the terminal device through the antenna 223, and sends the information sent by the terminal device to the baseband device 221 for processing. In the downlink direction, the baseband device 221 processes the information of the terminal device and sends it to the radio frequency device 222 , and the radio frequency device 222 processes the information of the terminal device and sends it to the terminal device through the antenna 223 .

The baseband device 221 includes one or more processing units 2211 , a storage unit 2212 and an interface 2213 . The processing unit 2211 is configured to support the network device to execute the functions of the network device in the foregoing method embodiments. The storage unit 2212 is used to store software programs and/or data. The interface 2213 is used for exchanging information with the radio frequency device 222, and the interface includes an interface circuit for inputting and outputting information. In one implementation, the processing unit is an integrated circuit, such as one or more ASICs, or one or more DSPs, or one or more FPGAs, or a combination of these types of integrated circuits. These integrated circuits can be integrated together to form a chip. The storage unit 2212 and the processing unit 2211 may be located in the same chip, that is, an on-chip storage element. Alternatively, the storage unit 2212 and the processing unit 2211 may also be located on different chips from the processing unit 2211 , that is, an off-chip storage element. The storage unit 2212 may be one memory, or a general term for multiple memories or storage elements.

A network device may implement part or all of the steps in the foregoing method embodiments in the form of one or more processing unit schedulers. For example, the corresponding functions of the network devices in FIGS. 10 to 18 are implemented. The one or more processing units may support wireless access technologies of the same standard, or may support wireless access technologies of different standards.

The embodiment of the present application also provides a computer-readable storage medium, where instructions are stored in the computer-readable storage medium, and when the instruction is run on a processor, the method flow of the above-mentioned method embodiment is realized.

The embodiment of the present application further provides a computer program product. When the computer program product is run on a processor, the method flow of the above method embodiment is implemented.

A communication system is provided, and the communication system includes the terminal device and the network device in the foregoing method embodiments.

Those skilled in the art can appreciate that the units and steps of each example described in conjunction with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed by hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may use different methods to implement the described functions for each specific application, but such implementation should not be regarded as exceeding the scope of the present application.

In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods may be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the units is only a logical function division. The units described as separate components may or may not be physically separated. The components shown may or may not be physical units, that is, they may be located in one place, or they may be distributed over multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

If the functions described above are realized in the form of software function units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned computer-readable storage medium may be any available medium that can be accessed by a computer. Take this as an example but not limited to: the computer readable medium may include random access memory (random access memory, RAM), read-only memory (read-only memory, ROM), programmable read-only memory (programmable ROM, PROM), Erasable programmable read-only memory (erasable PROM, EPROM), electrically erasable programmable read-only memory (electrically erasable programmable read only memory, EEPROM), compact disc read-only memory (compact disc read-only memory, CD- ROM), universal serial bus flash disk (universal serial bus flash disk), removable hard disk, or other optical disk storage, magnetic disk storage medium, or other magnetic storage device, or can be used to carry or store desired data in the form of instructions or data structures program code and any other medium that can be accessed by a computer. Additionally, by way of illustration and not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (dynamic RAM, DRAM), synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection dynamic random access memory (synchlink DRAM) , SLDRAM) or direct memory bus random access memory (direct rambus RAM, DR RAM).

The above is only the specific implementation of the application, but the protection scope of the embodiment of the application is not limited thereto, and any skilled person familiar with the technical field can easily think of changes within the technical scope disclosed in the embodiment of the application Or replacement, should be covered within the scope of protection of the embodiments of the present application. Therefore, the scope of protection of the embodiments of the present application should be based on the scope of protection of the claims.

Claims

A communication method, wherein the method is applied to a terminal device, comprising:

sending first information, where the first information includes the resident information of the terminal device;

receiving feedback information of the first information;

Monitor paging according to the feedback information.
The method according to claim 1, wherein the camping information of the terminal device indicates that the terminal device camps in the first cell or the first frequency domain resource;

The feedback information is used to confirm that the terminal device camps on the first cell or the first frequency domain resource.
The method according to claim 2, wherein the monitoring of paging according to the feedback information includes:

Monitoring paging in the first cell or the first frequency domain resource.
The method according to claim 1, wherein the camping information of the terminal device indicates that the terminal device camps in the first cell or the first frequency domain resource;

The feedback information is used to indicate that the terminal device camps on a second cell or a second frequency domain resource, where the first cell is different from the second cell, and the second frequency domain resource is different from the first frequency domain resource. A frequency domain resource is different.
The method according to claim 4, wherein the monitoring of paging according to the feedback information includes:

Monitoring paging in the second cell or the second frequency domain resource.
The method according to claim 4 or 5, characterized in that the method further comprises:

Camp on the second cell or the second frequency domain resource according to the feedback information.
The method according to any one of claims 1-6, wherein the residency information includes cell information, carrier information, or frequency band information;

Wherein, the first cell is a cell indicated by the cell information, the first frequency domain resource is a carrier indicated by the carrier information, and the first frequency domain resource is a frequency band indicated by the frequency band information.
The method according to any one of claims 1-7, wherein the first information is carried in message A in the first random access procedure; the feedback information is carried in the first random access procedure Message B in .
The method according to any one of claims 1-7, characterized in that,

The sending of the first information includes:

sending message 1 in the second random access process through the first random access resource, where the first random access resource is associated with the first information;

The receiving feedback information of the first information includes:

Receive message 2 or message 4 in the second random access procedure, where message 2 or message 4 includes the feedback information.
The method according to claim 9, characterized in that the method further comprises:

receiving second information, where the second information is used to configure random access resources, where the random access resources include the first random access resources.
The method according to claim 9 or 10, wherein the first random access resource comprises a random access channel opportunity (RO) and/or a random access preamble.
The method according to claim 1, wherein the camping information indicates the priority of the cell in which the terminal device resides or the priority of frequency domain resources in which the terminal device resides.
A communication method, wherein the method is applied to a terminal device, comprising:

receiving third information, where the third information includes the resident information of the terminal device;

Determine a third cell or a third frequency domain resource according to the third information, the third cell is the cell where the terminal device resides, and the third frequency domain resource is the frequency domain resource where the terminal device resides ;

Monitoring paging on the third cell or the third frequency domain resource.
The method according to claim 13, wherein the resident information includes cell information, carrier information, or frequency band information;

Wherein, the cell indicated by the cell information includes the third cell, the carrier indicated by the carrier information includes the third frequency domain resource, and the frequency band indicated by the frequency band information includes the third frequency domain resource.
The method according to claim 13, wherein the camping information indicates the priority of the cell where the terminal device is camped on or the priority of the frequency domain resource where the terminal device is camped on.
The method according to claim 15, wherein the camping cell of the terminal device indicated by the camping information includes at least the third cell and the fourth cell, and the priority of the third cell is high on the priority of the fourth cell; or,

The resident frequency domain resource of the terminal device indicated by the resident information includes at least a third frequency domain resource and a fourth frequency domain resource, and the priority of the third frequency domain resource is higher than that of the fourth frequency domain resource The priority of the resource.
The method according to claim 15, wherein the camping cell of the terminal device indicated by the camping information includes at least the third cell and the fourth cell;

The determining the third cell or the third frequency domain resource according to the third information includes:

determining the third cell or the third frequency domain resource according to the third information and cell quality;

Wherein, the priority of the third cell is lower than the priority of the fourth cell, and the cell quality of the third cell is higher than the cell quality of the fourth cell.
The method according to claim 13, wherein the determining the third cell or the third frequency domain resource according to the third information comprises:

determining the third cell or the third frequency domain resource according to the third information and the priority relationship;

The priority relationship includes the priority of the cell where the terminal device resides or the priority of the frequency domain resource where the terminal device resides.
The method according to claim 18, wherein the third information indicates that the camping cell of the terminal device includes at least a third cell and a fourth cell, and the priority relationship includes at least the third cell a priority higher than that of the fourth cell; or,

The third information indicates that the resident frequency domain resource of the terminal device includes at least a third frequency domain resource and a fourth frequency domain resource, and the priority relationship includes at least that the priority of the third frequency domain resource is higher than that of the fourth frequency domain resource. The priority of the fourth frequency domain resource is described.
A communication method, wherein the method is applied to a terminal device, comprising:

determining a third cell or a third frequency domain resource according to a priority relationship, where the third cell is the cell where the terminal device is camped on, and the third frequency domain resource is a frequency domain resource where the terminal device is camped on, or , the third cell is the cell where the terminal device monitors paging, and the third frequency domain resource is the frequency domain resource where the terminal device monitors paging; the priority relationship includes the camping of the terminal device The priority of the cell or the priority of the frequency domain resource where it resides;

Monitoring paging in the third cell or the third frequency domain resource.
The method according to claim 20, further comprising:

Sending at least one frequency domain resource or at least one frequency domain resource combination, where the at least one frequency domain resource or the at least one frequency domain resource combination includes frequency domain resources that the terminal device supports camping on, and where the at least one frequency domain resource Or at least one frequency domain resource combination includes the third frequency domain resource.
The method according to claim 20, further comprising:

receiving third information, where the third information includes the resident information of the terminal device;

The determining the third cell or the third frequency domain resource according to the priority relationship includes:

Determine the third cell or the third frequency domain resource according to the third information and the priority relationship, where the third cell is a cell where the terminal device camps or a cell that monitors paging, the The third frequency domain resource is a frequency domain resource where the terminal device camps or a frequency domain resource that monitors paging.
The method according to claim 22, wherein the resident information includes cell information, carrier information, or frequency band information;

Wherein, the cell indicated by the cell information includes the third cell, the carrier indicated by the carrier information includes the third frequency domain resource, and the frequency band indicated by the frequency band information includes the third frequency domain resource.
A communication method, wherein the method is applied to a network device, comprising:

receiving first information, where the first information includes resident information of the terminal device;

sending feedback information of the first information;

Send paging according to the feedback information.
The method according to claim 24, wherein the camping information of the terminal device indicates that the terminal device camps in the first cell or the first frequency domain resource;

The feedback information is used to confirm that the terminal device camps on the first cell or the first frequency domain resource.
The method according to claim 25, wherein the sending paging according to the feedback information includes:

Sending paging in the first cell or the first frequency domain resource.
The method according to claim 24, wherein the camping information of the terminal device indicates that the terminal device camps in the first cell or the first frequency domain resource;

The feedback information is used to indicate that the terminal device camps on a second cell or a second frequency domain resource, where the first cell is different from the second cell, and the second frequency domain resource is different from the first frequency domain resource. A frequency domain resource is different.
The method according to claim 27, wherein the sending paging according to the feedback information includes:

Send paging in the second cell or the second frequency domain resource.
The method according to any one of claims 24-28, wherein the resident information includes cell information, carrier information, or frequency band information;

Wherein, the first cell is a cell indicated by the cell information, the first frequency domain resource is a carrier indicated by the carrier information, and the first frequency domain resource is a frequency band indicated by the frequency band information.
The method according to any one of claims 24-29, wherein the first information is carried in message A in the first random access procedure; the feedback information is carried in the first random access procedure Message B in .
The method according to any one of claims 24-29, wherein,

Said receiving the first information includes:

Receive message 1 in the second random access process through the first random access resource, where the first random access resource is associated with the first information;

The sending the feedback information of the first information includes:

sending message 2 or message 4 in the second random access procedure, where message 2 or message 4 includes the feedback information.
The method according to claim 31, further comprising:

Sending second information, where the second information is used to configure random access resources, where the random access resources include the first random access resources.
The method according to claim 31 or 32, wherein the first random access resource comprises a random access channel opportunity (RO) and/or a random access preamble.
The method according to claim 24, wherein the camping information indicates the priority of the cell where the terminal device is camped on or the priority of the frequency domain resource where the terminal device is camped on.
A communication method, wherein the method is applied to a network device, comprising:

sending third information, where the third information includes the resident information of the terminal device;

Determine a third cell or a third frequency domain resource according to the third information, the third cell is the cell where the terminal device resides, and the third frequency domain resource is the frequency domain resource where the terminal device resides ;

Send paging on the third cell or the third frequency domain resource.
The method according to claim 35, wherein the resident information includes cell information, carrier information, or frequency band information;

Wherein, the cell indicated by the cell information includes the third cell, the carrier indicated by the carrier information includes the third frequency domain resource, and the frequency band indicated by the frequency band information includes the third frequency domain resource.
The method according to claim 35, wherein the camping information indicates the priority of the cell where the terminal device is camped on or the priority of the frequency domain resource where the terminal device is camped on.
The method according to claim 37, wherein the camping cell of the terminal device indicated by the camping information includes at least the third cell and the fourth cell, and the priority of the third cell is high on the priority of the fourth cell; or,

The resident frequency domain resource of the terminal device indicated by the resident information includes at least a third frequency domain resource and a fourth frequency domain resource, and the priority of the third frequency domain resource is higher than that of the fourth frequency domain resource The priority of the resource.
The method according to claim 37, wherein the camping cell of the terminal device indicated by the camping information includes at least the third cell and the fourth cell;

The determining the third cell or the third frequency domain resource according to the third information includes:

determining the third cell or the third frequency domain resource according to the third information and cell quality;

Wherein, the priority of the third cell is lower than the priority of the fourth cell, and the cell quality of the third cell is higher than the cell quality of the fourth cell.
The method according to claim 35, wherein the determining the third cell or the third frequency domain resource according to the third information comprises:

determining the third cell or the third frequency domain resource according to the third information and the priority relationship;

The priority relationship includes the priority of the cell where the terminal device resides or the priority of the frequency domain resource where the terminal device resides.
The method according to claim 40, wherein the third information indicates that the camping cell of the terminal device includes at least a third cell and a fourth cell, and the priority relationship includes at least the third cell a priority higher than that of the fourth cell; or,

The third information indicates that the resident frequency domain resource of the terminal device includes at least a third frequency domain resource and a fourth frequency domain resource, and the priority relationship includes at least that the priority of the third frequency domain resource is higher than that of the fourth frequency domain resource. The priority of the fourth frequency domain resource is described.
A communication method, wherein the method is applied to a network device, comprising:

determining a third cell or a third frequency domain resource according to a priority relationship, where the third cell is the cell where the terminal device is camped on, and the third frequency domain resource is a frequency domain resource where the terminal device is camped on, or , the third cell is the cell where the terminal device sends paging, and the third frequency domain resource is the frequency domain resource where the terminal device sends paging; the priority relationship includes the camping of the terminal device The priority of the cell or the priority of the frequency domain resource where it resides;

Sending paging in the third cell or the third frequency domain resource.
The method according to claim 42, further comprising:

Receiving at least one frequency domain resource or at least one frequency domain resource combination, the at least one frequency domain resource or the at least one frequency domain resource combination includes frequency domain resources on which the terminal device supports camping, and the at least one frequency domain resource Or at least one frequency domain resource combination includes the third frequency domain resource.
The method according to claim 42, further comprising:

sending third information, where the third information includes the resident information of the terminal device;

The determining the third cell or the third frequency domain resource according to the priority relationship includes:

Determine the third cell or the third frequency domain resource according to the third information and the priority relationship, where the third cell is a cell where the terminal device camps or a cell that sends paging, the The third frequency domain resource is a frequency domain resource where the terminal device camps or a frequency domain resource that sends paging.
The method according to claim 44, wherein the resident information includes cell information, carrier information, or frequency band information;

Wherein, the cell indicated by the cell information includes the third cell, the carrier indicated by the carrier information includes the third frequency domain resource, and the frequency band indicated by the frequency band information includes the third frequency domain resource.
A communication device, characterized in that it includes a processor and a transceiver, the processor and the transceiver are used to execute at least one computer program or instruction stored in a memory, so that the device implements claims 1-12 The method according to any one of the claims, or, realize the method according to any one of the claims 13-19, or, realize the method according to any one of the claims 20-23, or, realize the method according to any one of the claims The method according to any one of claims 24-34, or, realizing the method according to any one of claims 35-41, or, realizing the method according to any one of claims 42-45.
A computer-readable storage medium, characterized in that the storage medium stores computer programs or instructions, and when the computer programs or instructions are executed by a computer, the method described in any one of claims 1-12 is realized. method, or, realize the method according to any one of claims 13-19, or, realize the method according to any one of claims 20-23, or, realize the method according to any one of claims 24-34 The method described in item, or, realize the method described in any one of claims 35-41, or, realize the method described in any one of claims 42-45.
A computer program product, characterized in that the computer program product includes computer program code, and when the computer program code is run on a computer, the method according to any one of claims 1 to 12 can be realized, or , realizing the method according to any one of claims 13-19, or realizing the method according to any one of claims 20-23, or realizing the method according to any one of claims 24-34 The method according to any one of claims 35-41, or implementing the method according to any one of claims 42-45.