CN116193499A

CN116193499A - Communication method and communication device

Info

Publication number: CN116193499A
Application number: CN202111434215.0A
Authority: CN
Inventors: 谢曦; 张莉莉; 戴喜增; 刘江华
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2021-11-29
Filing date: 2021-11-29
Publication date: 2023-05-30
Also published as: WO2023093533A1

Abstract

The application provides a communication method and a communication device, wherein the method comprises the following steps: transmitting first information, wherein the first information comprises resident information of terminal equipment; receiving feedback information of the first information; and monitoring paging according to the feedback information. By the scheme in the application, the paging accuracy of the UE in the RRC idle state or the RRC inactive state can be improved and the paging overhead can be reduced under the scene of spectrum aggregation.

Description

Communication method and communication device

Technical Field

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

Background

In the scenario of spectrum aggregation, for example, the multi-carrier is aggregated by carrier aggregation (carrier aggregation, CA) technology or multi-band single serving cell (multi-band single serving cell, mbic) technology, and a User Equipment (UE) in an idle state or an inactive state of the radio resource control (radio resource control, RRC) may acquire configuration information of multiple carriers/cells, and may select one cell/carrier to camp on according to the acquired configuration information of multiple carriers/cells.

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

Disclosure of Invention

The 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, where the method is applied to a terminal device, the method includes:

transmitting first information, wherein the first information comprises resident information or paging monitoring information of the terminal equipment;

and receiving feedback information of the first information.

In the application, aiming at the scene of spectrum aggregation, the resident information of the network equipment is reported to the network equipment through the terminal equipment, so that the network equipment can obtain the information of the cell or carrier or frequency band in which the terminal equipment resides, and further the network equipment can determine the cell or carrier or frequency band for accurately sending the paging when the paging is initiated to the terminal equipment, and the paging is not required to be sent on all or a plurality of cells or carriers or frequency bands, thereby improving the paging accuracy and reducing the paging cost. The terminal device involved in the embodiment of the present application may be an RRC idle state or an RRC inactive state.

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

The feedback information is used for confirming that the terminal equipment resides in the first cell or the first frequency domain resource.

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

the feedback information is used for indicating the terminal equipment to reside in a second cell or a second frequency domain resource, wherein the first cell is different from the second cell, and the second frequency domain resource is different from the first frequency domain resource.

In the application, the network device indicates or changes the cell or the carrier or the frequency band where the terminal device resides to the terminal device according to the residence condition in the network device, so that the load of the cell or the carrier or the frequency band in the network can be balanced, and the problems such as serious paging false alarm and the like caused by overload of a certain cell or carrier or frequency band are avoided.

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

and monitoring 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 resides in the first cell or the first frequency domain resource;

the monitoring paging according to the feedback information includes:

and 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 instruct the terminal device to reside in a second cell or a second frequency domain resource;

the monitoring paging according to the feedback information includes:

and 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 a first cell or a first frequency domain resource;

and the feedback information is used for confirming that the terminal equipment 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 a first cell or a first frequency domain resource;

The feedback information is used for indicating the terminal equipment to monitor paging in the second cell or the second frequency domain resource, wherein the first cell is different from the second cell, and the second frequency domain 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, residing in the second cell or the second frequency domain resource; or alternatively, the process may be performed,

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

With reference to any one of the first aspect to the eighth possible implementation manner of the first aspect, in a ninth possible implementation manner, the residence information or the paging listening information includes cell information, carrier information, or band information;

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, the resident information or paging listening information in the present application may be cell granularity, carrier granularity or band granularity.

With reference to any one of the ninth possible embodiments of the first aspect, in a tenth possible embodiment,

the first information is carried in a message A in a first random access process;

the feedback information is carried in a message B in the first random access process.

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

With reference to any one of the ninth possible embodiments of the first aspect, in an eleventh possible embodiment,

the sending the first information includes:

transmitting a message 1 in a second random access process through a first random access resource, wherein the first random access resource is associated with first information;

the receiving feedback information of the first information includes:

and receiving a message 2 or a message 4 in the second random access process, wherein the message 2 or the message 4 comprises the feedback information.

In this application, the second random access procedure may be a four-step random access procedure. The purpose of signaling overhead can be achieved by sending the second information in message 1 in the four-step random access procedure and sending the feedback information in message 2 or message 4 in the four-step random access procedure. In addition, in the scheme based on the four-step random access process, the mode of acquiring the cell or the frequency domain resource where the terminal equipment resides by the network equipment is determined by the mapping relation between the random access resource used by the terminal equipment and the cell or the frequency domain resource (namely, the cell or the frequency domain resource where the terminal equipment resides is implicitly indicated by the random access resource), so that the method 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:

and receiving second information, wherein the second information is used for configuring random access resources, and the random access resources comprise the first random access resources.

In the application, the second information is sent to the terminal equipment through the network equipment, so that the terminal equipment can determine the random access resources allocated by the network equipment for the terminal equipment according to the second information, and the terminal equipment can initiate random access by using the random access resources allocated by the network equipment for the terminal equipment.

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 occasion RO and/or a random access preamble.

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

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

Receiving third information, wherein the third information comprises resident information or paging monitoring information of the terminal equipment;

and determining a third cell or a third frequency domain resource according to the third information, wherein the third cell is a cell where the terminal equipment resides or a cell for monitoring paging, and the third frequency domain resource is a frequency domain resource where the terminal equipment resides or a frequency domain resource for monitoring paging.

In the present application, for the scenario of spectrum aggregation, a cell or a frequency domain resource where the cell or the frequency domain resource where the terminal device is specified resides may be 1 or more, so that the terminal device may determine which cell or which frequency domain resource to camp on according to an indication of the network device. Therefore, when the subsequent network equipment initiates paging to the terminal equipment, the cell or the frequency domain resource for sending the paging can be determined, and the paging is not required to be sent on all the cells or the frequency domain resources supported by the terminal equipment, so that the paging accuracy is improved, and the paging cost is reduced. The terminal device involved in the embodiment of the present application may be an RRC idle state or an RRC inactive state.

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

The cell indicated by the cell information comprises the third cell, the carrier indicated by the carrier information comprises the third frequency domain resource, and the frequency band indicated by the frequency band information comprises 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 residence information of the terminal device;

the method further comprises the steps of:

and 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 camping cell or a priority of a camping frequency domain resource of the terminal device.

In the method, the priority relation is defined, and then the network equipment and the terminal equipment determine the cell or the frequency domain resource based on the same priority relation and the third information, so that the cell or the frequency domain resource determined by the network equipment and the terminal equipment is the same cell or the frequency domain resource, and accurate paging is facilitated.

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 listening information includes at least the third cell and a fourth cell, and a priority of the third cell is higher than a priority of the fourth cell; or alternatively, the process may be performed,

The resident frequency domain resource of the terminal equipment indicated by the resident information or the paging monitoring information at least comprises 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.

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 listening information includes at least the third cell and a fourth cell;

the determining a third cell or a 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 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 the application, the cell or frequency domain resource where the terminal equipment resides can be determined according to the priority relation and the cell quality, and the implementation of the scheme is more diversified.

With reference to the second aspect, in a sixth possible implementation manner, the determining a third cell or a 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 relation;

the priority relation includes a priority of a camping cell of the terminal device or a priority of a camping frequency domain resource.

With reference to the sixth possible implementation manner of the second aspect, in a seventh possible implementation manner, the third information indicates that a camping cell of the terminal device includes at least a third cell and a fourth cell, and the priority relationship includes at least a priority of the third cell being higher than a priority of the fourth cell; or alternatively, the process may be performed,

the third information indicates that the resident frequency domain resource of the terminal equipment at least comprises a third frequency domain resource and a fourth frequency domain resource, and the priority relation at least comprises that the priority of the third frequency domain resource is higher than that of the fourth frequency domain resource.

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

determining a third cell or a third frequency domain resource according to the priority relation, wherein the third cell is a cell where the terminal equipment resides, the third frequency domain resource is a frequency domain resource where the terminal equipment resides, or the third cell is a cell where the terminal equipment monitors paging, and the third frequency domain resource is a frequency domain resource where the terminal equipment monitors paging; the priority relation comprises the priority of a resident cell or the priority of resident frequency domain resources of the terminal equipment;

And monitoring paging in the third cell or the third frequency domain resource.

Aiming at the scene of spectrum aggregation, by defining residence rules, when a network initiates paging to terminal equipment, the cell or frequency domain resource for accurately sending the paging can be determined, and the paging is not required to be sent on all the cells or frequency domain resources supported by the terminal equipment, so that the paging accuracy is improved, and the paging overhead is reduced. The terminal device involved in the embodiment of the present application may be 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:

at least one frequency domain resource or at least one frequency domain resource combination is transmitted, wherein the at least one frequency domain resource or the at least one frequency domain resource combination comprises frequency domain resources which the terminal equipment supports to reside, and the at least one frequency domain resource or the at least one frequency domain resource combination comprises the third frequency domain resource.

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

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

and determining a third cell or a third frequency domain resource according to the third information and the priority relation, wherein the third cell is a cell where the terminal equipment resides or a cell where paging is monitored, and the third frequency domain resource is a frequency domain resource where the terminal equipment resides or a frequency domain resource where paging is monitored.

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

In a fourth aspect, the present application provides a communication method, the method being applied to a network device, the method comprising:

receiving first information, wherein the first information comprises resident information or paging monitoring information of the terminal equipment;

and sending feedback information of the first information.

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

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

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

and sending 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 resides in the first cell or the first frequency domain resource;

the sending paging according to the feedback information includes:

and 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 instruct the terminal device to reside in a second cell or a second frequency domain resource;

the sending paging according to the feedback information includes:

and sending 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 listening information indicates the terminal device to send a page in a first cell or a first frequency domain resource;

and the feedback information is used for confirming that the terminal equipment 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 listening information indicates the terminal device to send a page in a first cell or a first frequency domain resource;

the feedback information is used for indicating the terminal equipment to send paging in the second cell or the second frequency domain resource, wherein the first cell is different from the second cell, and the second frequency domain 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:

And sending 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 of the fourth aspect to the fourth aspect, in a ninth possible implementation manner, the camping information or the paging listening information includes cell information, carrier information, or band information;

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.

With reference to any one of the ninth possible embodiments of the fourth aspect to the fourth aspect, in a tenth possible embodiment,

With reference to any one of the ninth possible embodiments of the fourth aspect to the fourth aspect, in an eleventh possible embodiment,

the receiving the first information includes:

receiving a message 1 in a second random access process through a first random access resource, wherein the first random access resource is associated with first information;

The sending the feedback information of the first information includes:

and sending a message 2 or a message 4 in the second random access process, wherein the message 2 or the message 4 comprises 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:

and sending second information, wherein the second information is used for configuring random access resources, and the random access resources comprise 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 occasion RO and/or a random access preamble.

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

In a fifth aspect, the present application provides a communication method, the method being applied to a network device, the method comprising:

transmitting third information, wherein the third information comprises resident information or paging monitoring information of the terminal equipment;

With reference to the fifth aspect, in a first possible implementation manner, the residence information or the paging listening information includes cell information, carrier information, or 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 residence information of the terminal device;

the method further comprises the steps of:

and sending 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 listening information indicates a priority of a camping cell or a priority of a camping frequency domain resource of the terminal device.

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 listening information includes at least the third cell and a fourth cell, and a priority of the third cell is higher than a priority of the fourth cell; or alternatively, the process may be performed,

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 listening information includes at least the third cell and a fourth cell;

With reference to the fifth aspect, in a sixth possible implementation manner, the determining a third cell or a 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 a camping cell of the terminal device includes at least a third cell and a fourth cell, and the priority relationship includes at least a priority of the third cell being higher than a priority of the fourth cell; or alternatively, the process may be performed,

In a sixth aspect, the present application provides a communication method, the method being applied to a network device, the method comprising:

And 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:

at least one frequency domain resource or at least one frequency domain resource combination is received, the at least one frequency domain resource or the at least one frequency domain resource combination comprises frequency domain resources where the terminal device supports to reside, and the at least one frequency domain resource or the at least one frequency domain resource combination comprises 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 residence information or the paging listening information includes cell information, carrier information, or band information;

In a seventh aspect, the present application provides a communication apparatus, the apparatus being a terminal device, the apparatus comprising:

the receiving and transmitting unit is used for transmitting first information, wherein the first information comprises resident information or paging monitoring information of the terminal equipment;

the receiving and transmitting unit is used for receiving feedback information of the first information.

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

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

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

and the processing unit is used for monitoring paging based on the receiving and transmitting unit according to the feedback information.

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 resides in the first cell or the first frequency domain resource;

the monitoring paging according to the feedback information includes:

and 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 reside in a second cell or a second frequency domain resource;

the monitoring paging according to the feedback information includes:

With reference to the seventh aspect, in a sixth possible implementation manner, the paging monitoring information indicates that the terminal device monitors paging in a first cell or a 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 a first cell or a 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 of the seventh aspect to the seventh aspect, in a ninth possible implementation manner, the camping information or the paging listening information includes cell information, carrier information, or band information;

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

With reference to any one of the seventh to seventh possible implementation manners of the seventh aspect, in an eleventh possible implementation manner, the sending 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 occasion RO and/or a random access preamble.

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

In an eighth aspect, the present application provides a communication apparatus, the apparatus being a terminal device, the apparatus comprising:

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

and the processing unit is used for determining a third cell or a third frequency domain resource according to the third information, wherein the third cell is a cell where the terminal equipment resides or a cell for monitoring paging, and the third frequency domain resource is a frequency domain resource where the terminal equipment resides or a frequency domain resource for monitoring paging.

With reference to the eighth aspect, in a first possible implementation manner, the residence information or the paging listening information includes cell information, carrier information, or 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 residence information of the terminal device;

the processing unit is further configured to:

and monitoring paging on the third cell or the third frequency domain resource based on the receiving and transmitting unit.

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

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

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 listening information includes at least the third cell and a fourth cell;

With reference to the eighth aspect, in a sixth possible implementation manner, the determining a third cell or a 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 a camping cell of the terminal device includes at least a third cell and a fourth cell, and the priority relationship includes at least a priority of the third cell higher than a priority of the fourth cell; or alternatively, the process may be performed,

In a ninth aspect, the present application provides a communication apparatus, the apparatus being a terminal device, the apparatus comprising:

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 a cell where the terminal device resides, the third frequency domain resource is a frequency domain resource where the terminal device resides, or the third cell is a cell where the terminal device monitors paging, and the third frequency domain resource is a frequency domain resource where the terminal device monitors paging; the priority relation comprises the priority of a resident cell or the priority of resident frequency domain resources of the terminal equipment;

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

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

the transceiver 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 a frequency domain resource that the terminal device supports to reside, and the at least one frequency domain resource or the 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 residence information or the paging listening information includes cell information, carrier information, or band information;

In a tenth aspect, the present application provides a communication apparatus, the apparatus being a network device, the apparatus comprising:

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

the receiving and transmitting unit is used for transmitting feedback information of the first information.

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

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

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

and the processing unit is used for sending paging based on the receiving and transmitting unit according to the feedback information.

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

the sending paging according to the feedback information includes:

and 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 instruct the terminal device to reside in a second cell or a second frequency domain resource;

the sending paging according to the feedback information includes:

And sending 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 listening information indicates the terminal device to send a page in a first cell or a first frequency domain resource;

With reference to the tenth aspect, in a seventh possible implementation manner, the paging listening information indicates the terminal device to send a page in a first cell or a 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 listening information includes cell information, carrier information, or band information;

With reference to any one of the tenth to tenth possible embodiments, in a tenth possible embodiment,

With reference to any one of the tenth to tenth possible embodiments, in an eleventh possible embodiment,

the 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 occasion RO and/or a random access preamble.

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

In an eleventh aspect, the present application provides a communication apparatus, the apparatus being a network device, the apparatus comprising:

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

With reference to the eleventh aspect, in a first possible implementation manner, the residence information or the paging listening information includes cell information, carrier information, or 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 residence information of the terminal device;

the processing unit is further configured to:

and sending a page 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 listening information indicates a priority of a camping cell or a priority of a camping frequency domain resource of the terminal device.

With reference to the third possible implementation manner of the eleventh aspect, in a fourth possible implementation manner, the resident cells of the terminal device indicated by the resident information or the paging listening information include at least the third cell and a fourth cell, and the priority of the third cell is higher than the priority of the fourth cell; or alternatively, the process may be performed,

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

With reference to the eleventh aspect, in a sixth possible implementation manner, the determining a third cell or a 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 a camping cell of the terminal device includes at least a third cell and a fourth cell, and the priority relationship includes at least a priority of the third cell being higher than a priority of the fourth cell; or alternatively, the process may be performed,

In a twelfth aspect, the present application provides a communications apparatus, the apparatus being a network device, the apparatus comprising:

The processing unit is configured to send a page in the third cell or the third frequency domain resource based on the transceiving unit.

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

the transceiver 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 a frequency domain resource that the terminal device supports to reside, and the at least one frequency domain resource or the 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 twelfth possible implementation manner of the second aspect, in a third possible implementation manner, the residence information or the paging listening information includes cell information, carrier information, or band information;

In a thirteenth aspect, the present application provides a communications apparatus, which may be a terminal device, or an apparatus in a terminal device, or an apparatus that can be used in a matching manner with a terminal device. The communication device may also be a chip system. The communication device may perform the method of the first, second or third aspect. The functions of the communication device can be realized by hardware, and can also be realized by executing corresponding software by hardware. The hardware or software includes one or more units or modules corresponding to the functions described above. The unit or module may be software and/or hardware. The operations and advantages performed by the communication device may be referred to the methods and advantages described in the first aspect, the second aspect or the third aspect, and the repetition is omitted.

In a fourteenth aspect, the present application provides a communications apparatus, which may be a network device, an apparatus in a network device, or an apparatus that can be used in cooperation with a network device. The communication device may also be a chip system. The communication device may perform the method of the fourth aspect, the fifth aspect or the sixth aspect. The functions of the communication device can be realized by hardware, and can also be realized by executing corresponding software by hardware. The hardware or software includes one or more units or modules corresponding to the functions described above. The unit or module may be software and/or hardware. The operations and advantages performed by the communication device may be referred to the methods and advantages described in the fourth, fifth or sixth aspects, and the repetition is not repeated.

In a fifteenth aspect, the present application provides a communications apparatus, which may be a terminal device, the communications apparatus comprising a processor and a transceiver for executing a computer program or instructions stored in at least one memory to cause the apparatus to implement a method as in any of the first, second or third aspects.

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

In a seventeenth aspect, the present application provides a communications apparatus, which may be a network device, the communications apparatus comprising a processor and a transceiver for executing a computer program or instructions stored in at least one memory to cause the apparatus to implement a method as in any of the fourth, fifth or sixth aspects.

In an eighteenth aspect, the present application provides a communications apparatus, which may be a network device, comprising a processor, a transceiver, and a memory. Wherein the processor, transceiver, and memory are coupled; the processor and transceiver are configured to implement a method as in any of the fourth, fifth or sixth aspects.

In a nineteenth aspect, the present application provides a computer readable storage medium having stored therein a computer program or instructions which, when executed by a computer, implement a method as in any one of the first to third aspects.

In a twentieth aspect, the present application provides a computer readable storage medium having stored therein a computer program or instructions which, when executed by a computer, implement the method as in any of the fourth to sixth aspects.

In a twenty-first aspect, the present application provides a computer program product comprising instructions, the computer program product comprising computer program code for implementing the method of any one of the first to third aspects when the computer program code is run on a computer.

In a twenty-second aspect, the present application provides a computer program product comprising instructions, the computer program product comprising computer program code for implementing the method of any one of the fourth to sixth aspects when the computer program code is run on a computer.

In a twenty-third aspect, a chip system is provided, the chip system comprising a processor and possibly a memory for implementing the method of any of the foregoing first to third aspects and any possible designs. The chip system may be formed of a chip or may include a chip and other discrete devices.

In a twenty-fourth aspect, a chip system is provided, which comprises a processor and may further comprise a memory for implementing the method of any of the foregoing fourth to sixth aspects and any possible designs. The chip system may be formed of a chip or may include a chip and other discrete devices.

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

Drawings

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

FIG. 2 is a diagram of paging occasions and paging cycles;

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 a CBRA-based four-step random access;

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

fig. 8 is a flow diagram of CFRA-based four-step random access;

fig. 9 is a flow diagram of CFRA-based two-step random access;

FIG. 10 is a flow chart of a communication method according to an embodiment of the present disclosure;

FIG. 11 is another flow chart of a communication method according to an embodiment of the present application;

fig. 12 is a schematic flow chart of sending feedback information based on a four-step random access procedure according to an embodiment of the present application;

fig. 13 is another flow chart of sending feedback information based on a four-step random access procedure according to an embodiment of the present application;

fig. 14 is another flow chart of a communication method provided in an embodiment of the present application;

fig. 15 is another flow chart of a communication method provided in an embodiment of the present application;

FIG. 16 is a schematic view of a scenario for providing residence rules based on network devices provided in embodiments of the present application;

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

fig. 18 is a schematic diagram of another paging scenario provided in an embodiment of the present application;

fig. 19 is a schematic structural diagram of a communication device according to an embodiment of the present application;

fig. 20 is a schematic structural diagram of another communication device according to an embodiment of the present application;

fig. 21 is a schematic structural diagram of another communication device according to an embodiment of the present application;

fig. 22 is a schematic structural diagram of another communication device according to an embodiment of the present application.

Detailed Description

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

In the description of the present application, "/" means "or" unless otherwise indicated, for example, a/B may mean a or B. "and/or" herein is merely an association relationship describing an association object, and means that three relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist together, and B exists alone. Furthermore, "at least one" means one or more, and "a plurality" means two or more. The terms "first," "second," and the like do not limit the number and order of execution, and the terms "first," "second," and the like do not necessarily differ.

In this application, the terms "exemplary" or "such as" and the like are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "for example" should not 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 fashion.

It should be appreciated that reference throughout this specification to "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, various embodiments are not necessarily referring to the same embodiments throughout the specification. 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 application can be applied to various communication systems, for example: long term evolution (long term evolution, LTE) systems, wireless-fidelity (WiFi) systems, worldwide interoperability for microwave access (worldwide interoperability for microwave access, wiMAX) communication systems, fifth generation (5th generation,5G) systems or New Radio (NR) and future communication systems, and the like, are not limited herein.

Referring to fig. 1, fig. 1 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 1 shown) and one or more terminal devices 20 in communication with each network device 10. Fig. 1 is only a schematic diagram, and does not constitute a limitation on the applicable scenario of the technical solution provided in the present application.

The terminal device comprises a device providing voice and/or data connectivity to the user, and may comprise, for example, a handheld device having wireless connectivity, or a processing device connected to a wireless modem. The terminal device may communicate with the core network via a radio access network, which may include a User Equipment (UE), a wireless terminal device, a mobile terminal device, a device-to-device (D2D) terminal device, a vehicle-to-everything (vehicle to everything, V2X) terminal device, a machine-to-machine/machine-type communication (M2M/MTC) terminal device, an internet of things (internet of things, ioT) terminal device, a subscriber unit, a subscriber station, a mobile station, a remote station, an Access Point (AP), a remote terminal, an access terminal, a user agent, or user equipment, and the like. For example, mobile telephones (or "cellular" telephones) computers with mobile terminal devices, portable, pocket, hand-held, computer-built mobile devices, and the like may be included. For example, personal communication services (personal communication service, PCS) phones, cordless phones, session initiation protocol (session initiation protocol, SIP) phones, wireless local loop (wireless local loop, WLL) stations, personal digital assistants (personal digital assistant, PDAs), and the like; but may also include limited devices such as devices with lower power consumption, or devices with limited memory or computing capabilities, etc.

The network device may be a Core Network (CN), a radio access network (radio access network, RAN), or a CN and a RAN. The RAN may include, but is not limited to, a new generation base station (generation node B, gNB), an evolved node B (eNB), a next generation evolved node B (next generation eNB, ng-eNB), a wireless backhaul device, a radio network controller (radio network controller, RNC), a node B (node B, NB), a base station controller (base station controller, BSC), a base transceiver station (base transceiver station, BTS), a home base station (home evolved nodeB, heNB) or (home node B, HNB), a baseBand unit (BBU), a transmission reception point (transmitting and receiving point, TRP), a transmission point (transmitting point, TP), a mobile switching center, and the like in the 5G communication system.

The RAN may also include one or more Centralized Units (CUs), one or more Distributed Units (DUs), or one or more CUs and one or more DUs. Illustratively, the functionality of a CU may be implemented by one entity or by a different entity. For example, the functions of the CU are further split, that is, the control plane and the user plane are separated and implemented by different entities, that is, a control plane CU entity (i.e., a CU-CP entity) and a user plane CU entity (i.e., a CU-UP entity), which may be coupled to the DU, so as to jointly complete the functions of the access network device. In this way part of the functionality of the radio access network device may be implemented by a plurality of network functional entities. These network function entities may be network elements in a hardware device, software functions running on dedicated hardware, or virtualized functions instantiated on a platform (e.g., a cloud platform).

In the embodiment of the present application, the means for implementing the RAN function may be the RAN itself, or may be a means capable of supporting the RAN to implement the function, for example, a chip system or a combination device or component capable of implementing the function of the access network device, where the apparatus may be installed in the RAN. In the embodiment of the application, the chip system may be formed by a chip, and may also include a chip and other discrete devices.

The core network equipment is used for realizing the functions of mobile management, data processing, session management, policy and charging and the like. The names of devices implementing the core network function in the systems of different access technologies may be different, and this application is not limited thereto. Taking a 5G network as an example, the logical network element of the 5GC includes: access and mobility management functions (access and mobility management function, AMF), session management functions (session management function, SMF), or user plane functions (user plane function, UPF), etc. The means for implementing the functions of the core network device may be the core network device, or may be means capable of supporting the core network device to implement the functions, such as a chip system or a combination device, a component capable of implementing the functions of the core network device, which may be installed in the core network device.

It should be noted that, unless otherwise specified, the network device in the embodiments of the present application may be understood as a CN or a RAN, which is not limited herein.

The following explains related technical features related to the embodiments of the present application. It should be noted that these explanations are for easier understanding of the embodiments of the present application, and should not be construed as limiting the scope of protection claimed in the present application.

1. Paging (Paging)

The network may inform UEs in an RRC IDLE state (rrc_idle) or an RRC INACTIVE state (rrc_inactive) of receiving a paging message (paging message) by paging, or the network may send a short message (short message) to UEs in an RRC IDLE state (rrc_idle), an RRC INACTIVE state (rrc_inactive) or an RRC CONNECTED state (rrc_connected) by paging to indicate system information (system information, SI) update or an earthquake tsunami warning/commercial mobile alert (earthquake and tsunami warning system/commercial mobile alert service, ETWS/CAMS).

Referring to fig. 2, fig. 2 is a schematic diagram of paging occasions and paging cycles. As shown in fig. 2, a UE in an RRC idle state or an RRC inactive state listens to one own Paging Occasion (PO) in each paging cycle (paging cycle) to determine whether the network is paged.

In general, the UE may calculate its own PO position according to the calculation formula specified by the protocol according to its own UE identification information and paging related parameters, and the PO positions calculated by different UEs may be the same, i.e. there may be multiple UEs monitoring the same PO.

Specifically, the basic flow of paging is as follows:

the network selects a certain paging range and sends paging downlink control information (downlink control information, DCI) in the PO. Wherein the paging range is the area where the network sends pages. The area is determined by the network, for example, for an RRC idle state UE, the network may take the registration area (registration area) to which the UE belongs as a paging range; for an RRC inactive UE, the network may take as paging range the RAN-based notification area (RAN-based notification area, RNA) to which the UE belongs. The paging DCI may include scheduling information (including time-frequency domain information for scheduling resources of paging messages and other scheduling information) of paging messages (paging messages) and/or short messages (short messages), and the specific contents are as shown in table 1 below:

TABLE 1

After receiving paging DCI sent by a network, the UE determines subsequent operations according to the content of the paging DCI, wherein the subsequent operations are specifically as follows:

In one possible implementation, if the paging DCI includes scheduling information of a paging message, the UE receives and decodes the paging message on a physical downlink shared channel (physical downlink shared channel, PDSCH) according to the scheduling information and then determines a subsequent operation according to the content of the paging message. Wherein the paging message contains 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. In general, if the paging message does not include its own UE identity, the UE ignores the paging message; if the paging message contains the own UE identification, the UE determines subsequent operation according to other contents in the paging message.

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

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

It should be noted that, according to different network elements triggering paging, paging may be divided into: core Network (CN) triggered CN paging; radio access network (radio access network, RAN) triggered RAN paging. The network may initiate a CN page for rrc_idle UE, may initiate a CN page or a RAN page for rrc_inactive UE.

For CN (AMF) triggered paging (i.e., CN paging), generally, the CN triggers paging to enable the UE to initiate connection establishment for traffic transmission due to RRC idle state UE traffic arrival. The CN selects the paging range, and sends the paging message (PAGING MESSAGE) to each base station participating in the paging, and each base station sends the paging. The paging range is typically within a registration area (registration area) of the UE, which consists of several tracking areas (tracking areas), each tracking area containing one or more cells.

For RAN (base station) triggered paging (i.e., RAN paging), generally, due to service arrival of an RRC inactive UE, the CN sends the service of the UE to the base station, and the base station triggers paging to enable the UE to resume connection for service transmission. The anchor point (anchor) base station of the UE selects the paging range and sends the paging message to the base stations participating in paging, and each base station sends the paging. The paging range is typically a RAN-based notification area (RAN-based notification area, RNA) to which the UE belongs, the RNA consisting of several cells, the RNA belonging 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 information such as radio resource control (radio resource control, RRC), context (context), etc. The RRC context is a parameter for establishing communication between the terminal device and the network device. The RRC context may include a security context, capability information of the terminal device, and the like. Meanwhile, the terminal equipment does not establish connection with the core network equipment. Typically, a terminal device in RRC idle state only periodically wakes up to receive paging messages.

3. RRC INACTIVE state (RRC_INACTIVE)

When the terminal device is in the RRC inactive state, an RRC context is maintained between the terminal device and the network device. Meanwhile, the terminal device also establishes connection with the core network device, that is, the core network device is in cn_connected (core network connection 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 generated. In addition, the terminal device in the RRC inactive state may also enter the sleep 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. Parameters required for establishing communication between the terminal device and the network device are acquired by both communication parties. The network device allocates a cell radio network temporary identity (cell radio network temporary identifier, C-RNTI) for the accessed terminal device. Meanwhile, the terminal equipment also establishes connection with the core network equipment. At this time, if the terminal device is transmitting data, it is in continuous reception state, and when the data transmission is completed and the waiting state is entered, it is switched to discontinuous reception (discontinuous reception, DRX) in connection state to save power consumption. If there is more data to be transmitted subsequently, the terminal device returns to the continuous reception state again. At this time, since the RRC context is already established, the switching time required for the UE to leave the connected DRX and prepare for continuous reception is much shorter than the time to switch from the RRC idle state to the RRC connected state.

5. Carrier aggregation (carrier aggregation, CA)

Carrier aggregation is a technique to increase transmission bandwidth to meet the requirements of single user peak rate and system capacity improvement. The CA technology can aggregate 2 or more member carriers (component carrier, CC) under one base station, so that larger transmission bandwidth is realized, and the uplink and downlink transmission rate is effectively improved. The UE determines, according to its capability, that at most several carriers can be used for uplink and downlink transmission simultaneously. Referring to fig. 3, fig. 3 is a schematic diagram of three types of carrier aggregation. As shown in fig. 3, three types of CA include intra-band aggregation of contiguous CCs, intra-band aggregation of non-contiguous CCs, and inter-band aggregation.

The primary cell (PCell) is a cell in which the UE performs initial connection establishment, or a cell in which RRC connection reestablishment is performed, or a primary cell designated in a handover procedure. The PCell is responsible for RRC communication with the UE. The CC corresponding to the PCell is called a primary carrier (primary component carrier, PCC). A secondary cell (SCell) is added after an initial security activation procedure through RRC connection reconfiguration for providing additional radio resources. The CC corresponding to the SCell is called a secondary carrier (Secondary component carrier, SCC).

In general, a CA-configured UE may be connected to 1 PCell and at most 31 scells, which form a serving cell set for the UE, the serving cell set containing a maximum of 32 serving cells (i.e., 1 PCell and at most 31 scells). CA is a UE-level property, different UEs may have different PCell, SCell, and serving cell sets. The same cell may be a PCell for one UE but an SCell for another UE. Referring to fig. 4, fig. 4 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 a PCell of a terminal device, and the remaining several cells can serve as scells of a UE.

6. Multiband single serving cell (Multi-band single serving cell, MBSC)

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

There are many discontinuous frequency division duplex (frequency division duplexing, FDD) bands (bands) below 3GHz (Sub-3 GHz) that have a limited single bandwidth but the aggregate bandwidth can be quite large. In addition, these frequency bands are low in frequency, so that uplink transmission conditions and coverage are better, and therefore, especially for some scenes with high uplink transmission requirements, it is significant to aggregate and use these frequency bands.

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

However, the polymerization of the discontinuous FDD band in the existing CA manner may have problems of unnecessary management overhead and non-optimization of time delay. The reason is that the frequency domain locations of these non-contiguous frequency bands may be similar or may be co-located, i.e. the carrier characteristics on these frequency bands are similar, so that some measurement procedures and management operations need not actually be performed for each carrier. But in the CA technology it is assumed that each carrier is deployed independently, each serving cell is managed independently, and there is an activation delay for the use of scells.

The basic idea of the MBSC is to aggregate carriers on these discontinuous bands into one serving cell to simplify the management operation of the multi-carriers.

For a UE in an RRC idle state or an RRC inactive state, the UE may learn configuration information for each carrier within the MBSC through, for example, system information. When Random Access (RA) needs to be initiated, the UE may select an uplink carrier configured with a random access resource to initiate random access in consideration of factors such as UE capability and carrier signal quality.

For a UE in an RRC connected state, the network may schedule the UE to use frequency resources on one or more frequency bands within the MBSC. One downlink carrier in the MBSC may be used as a reference, and the result obtained by the UE performing RRC measurements on that carrier may be applicable to other carriers, i.e., the UE may perform measurements on only one carrier without measuring each carrier.

For example, referring to fig. 5, fig. 5 is a schematic view of a scenario of a multiband single serving cell. As shown in fig. 5, the MBSC includes 3 uplink carriers and 3 downlink carriers.

7. Random Access (RA)

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

Wherein, 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 further classified into a contention-based random access (CBRA) and a non-contention-based random access (CFRA).

(1)CBRA

In CBRA, terminal devices under one cell select resources from the shared random access resources to initiate random access, i.e. one terminal device has the risk of selecting the same random access resources as another terminal device and thus may subsequently experience collisions. The network device uses a contention resolution mechanism to handle this type of access request. In this procedure, the result of random access is uncertain and not all random accesses are successful.

For example, referring to fig. 6, fig. 6 is a schematic flow diagram of a 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. Wherein:

s601, the terminal equipment sends a message 1 (Msg 1) to the network equipment.

The terminal device selects a random access resource, such as a random access channel occasion (RACH) and a preamble, from the shared random access resources, and transmits a message 1 on the RO, wherein the message 1 includes the preamble. The function of the preamble is to inform the network device of a random access request and to enable the network device to calculate the transmission delay between the network device and the terminal device, so that the network device calibrates the uplink timing (uplink timing) and informs the terminal device of the calibration information via Timing Advance (TA) time adjustment information. Generally, the RA response window (RAresponse window) timer is started after the terminal device sends the preamble.

S602, the network device sends a message 2 (Msg 2) to the terminal device.

The network device sends a message 2 to the terminal device based on the received preamble. The message 2 may also be referred to as a random access response (random access response, RAR), among others. The RAR may include a preamble identifier, timing Advance (TA) time adjustment information, uplink grant (UL grant), temporary cell radio network equipment temporary identity (TC-RNTI), and the like. Wherein UL grant is used to indicate transmission resources of message 3.

Generally, if the terminal device receives the RAR within the RA response window, the preamble identifier contained therein is identical to the identifier of the preamble transmitted by the terminal device, the response is successful. The terminal device may then send information using the uplink resources in the RAR.

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

S603, the terminal device sends a message 3 (Msg 3) to the network device.

The terminal device sends message 3 on the UL grant indicated/scheduled transmission resource. The message 3 includes uplink information, where the uplink information may be an RRC setup request message (RRC setup request), an RRC recovery request (RRC resume request), beam failure recovery (beam failure recovery, BFR), or a medium access control (media access control, MAC) element (CE), etc. The message 3 may also contain identification information of the terminal device, etc.

Typically, after the terminal device sends Msg3, the RA contention resolution timer may be started/restarted.

S604, the network device sends a message 4 (Msg 4) to the terminal device.

After the terminal device sends the Msg3, it waits for the network device to send a message 4, where the message 4 may include a contention resolution message, and the contention resolution message includes a contention resolution identifier of the terminal device. Alternatively, the message 4 may further include an RRC message, such as an RRC setup message (RRC setup), or an RRC resume message (RRC resume), and the like, which is not limited herein.

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

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

For example, referring to fig. 7, fig. 7 is a schematic flow diagram 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. Wherein:

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 transmitted by Msg1 on PRACH occision described above, and the PUSCH payload is similar to Msg3. That is, the contents of message 1 and message 3 in the aforementioned CBRA-based four-step random access are included in message a.

Typically, after the terminal device sends the MsgA, the MsgB contention resolution timer may be started/restarted.

S702, the network equipment sends a message B (MsgB) to the terminal equipment.

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

In one implementation, if the network device successfully receives the MsgA (i.e., preamble and PUSCH payload) sent by the decoding terminal device, the network device replies to the terminal device with success RAR (success RAR), where the success RAR may include a terminal device contention resolution identifier, timing Advance (TA) time adjustment information, a C-RNTI, and so on.

In one implementation, if the network device successfully receives the preamble sent by the decoding terminal device, but does not successfully receive the PUSCH load sent by the decoding terminal device, the network device may reply to the terminal device with a backoff RAR (fallback RAR), where the fallback RAR may include a preamble identifier, timing Advance (TA) time adjustment information, uplink grant (UL grant), TC-RNTI, and the like.

In general, if the terminal device receives the success RAR during the running period of the MsgB contention resolution timer, the contention resolution identifier of the terminal device included therein is consistent with the identifier information sent by the terminal device in the MsgA, and the random access procedure of the terminal device is successful. If the terminal device receives the fallback RAR during the running of the MsgB contention resolution timer, where the preamble identifier contained therein is identical to the identifier of the preamble sent by the terminal device, the terminal device then uses the uplink resources in the fallback RAR to send a scheduled transmission to the network device, similar to the sending of message 3 in the above-mentioned four-step random access. The terminal device then receives a contention resolution from the network device, similar to the reception of message 4 in the four-step random access described above. I.e. the two-step random access backoff is a four-step random access.

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

(2)CFRA

In CFRA, terminal devices have dedicated/independent random access resources, and thus there is no collision between terminal devices. That is, in the CFRA-based four-step random access and two-step random access, since the network device allocates a dedicated random access resource (e.g., preamble and/or RO) to the terminal device, the terminal device initiates random access using the dedicated random access resource, and the network device can confirm which terminal device initiates random access based on the random access resource used by the terminal device, so that contention resolution is not required.

For example, referring to fig. 8, fig. 8 is a flow chart of CFRA-based four-step random access. As shown in fig. 8, the CFRA-based four-step random access includes the following steps S801 to S804. Wherein:

S801, the network device transmits a message 0 (Msg 0) to the terminal device.

Wherein message 0 contains a random access resource configuration, which may comprise a dedicated preamble and/or a dedicated RO. It is understood that the dedicated preamble and/or the dedicated RO may be allocated to one terminal device or used to request system information (of one type).

S802, the terminal equipment sends a message 1 (Msg 1) to the network equipment.

The terminal device initiates random access using the dedicated preamble and/or RO allocated by the network device, i.e. the terminal device sends message 1 to the network device on the dedicated RO allocated by the network device, or the terminal device sends message 1 using the dedicated preamble, or the terminal device sends message 1 to the network device using the dedicated preamble on the dedicated RO allocated by the network device.

S803, the network device sends a message 2 (Msg 2) to the terminal device.

The network device transmits a message 2 to the terminal device based on the receipt of the preamble on the dedicated RO, or the network device transmits a message 2 to the terminal device based on the receipt of the dedicated preamble on the dedicated RO. The message 2 may also be referred to as a random access response (random access response, RAR), among others. The RAR may include a preamble identifier, timing Advance (TA) time adjustment information, uplink grant (UL grant), temporary cell radio network equipment temporary identity (TC-RNTI), and the like.

For example, referring to fig. 9, fig. 9 is a schematic flow diagram 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. Wherein:

s901, the network device transmits a message 0 (Msg 0) to the terminal device.

The message 0 includes one or more of a dedicated preamble, a dedicated RO, PUSCH resources, and the like, which are not limited herein.

S902, the terminal equipment sends a message A (MsgA) to the network equipment.

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. The dedicated preamble contained in message a is similar to the preamble that Msg1 sends on RO in fig. 8 described above, where RO may be a dedicated RO. PUSCH loading is similar to Msg3 in fig. 8 described above. That is, the message a includes two contents, one is a preamble (e.g., a dedicated preamble) transmitted on an RO (e.g., a dedicated RO), and the other is an RRC message transmitted using a configured PUSCH resource, and the other is a content such as identification information of a terminal device (i.e., corresponding to the content included in the message 2 in fig. 8).

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

Wherein MsgB may also be referred to as random access response.

In the spectrum aggregation scenario (for example, in the case of aggregating multiple carriers by CA technology or mbic technology), the UE in the RRC idle state or in the RRC inactive state may acquire configuration information of multiple carriers/cells from the network device, and may select at least one cell/carrier from the multiple carriers/cells to camp on according to the acquired configuration information of the multiple carriers/cells (hereinafter, the UE camps on one carrier/cell is taken as an example).

When the network device needs to send downlink data to a UE in an RRC idle state or an RRC inactive state, the network device generally needs to trigger paging to enable the UE to initiate RRC connection establishment or recover RRC connection for service transmission. In the related art, in the spectrum aggregation scenario, when a network device needs to page a certain UE, the network device generally needs to send paging messages on each carrier/cell, but in reality, the paged UE resides on only one carrier/cell, which causes a large paging overhead. In addition, sending pages on some irrelevant carriers/cells may cause UEs on the irrelevant carriers/cells to also receive pages, where the UEs are not the object to be paged, which causes paging false alarms to the irrelevant UEs, affecting the power consumption of the UEs.

Based on the above, the application provides a communication method, which can improve paging accuracy and reduce paging overhead in a spectrum aggregation scene.

It should be noted that "designating" in the embodiments of the present application may also be understood as "indicating" or "configuring" and the like, and is not limited herein. The "certain information is carried in a certain message" in the embodiments of the present application may also be understood as "certain information is included in a certain message", or "certain information is carried and transmitted in a certain message", which is not limited herein. The "camping cell" referred to in the embodiments of the present application may be understood as "camping cell" and "camping frequency domain resource" may be understood as "camping frequency domain resource". The frequency domain resources involved in the embodiments of the present application may be carrier granularity or 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 according to the embodiments of the present application may be paging for the terminal device in an RRC idle state or an RRC inactive state in a spectrum aggregation scenario.

It should be noted that, in the first cell in the embodiment of the present application, the relationship between the first carrier and the first frequency band may be understood as: the first carrier is a carrier within a frequency range of the first frequency band, and the first cell is a cell within the frequency range of the first carrier, or a 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 carrier and the third frequency band with respect to the third cell also satisfy the above description of the first cell, the first carrier and the first frequency band, and are not repeated herein,

The following describes the communication method and the communication device provided in the present application in detail:

referring to fig. 10, fig. 10 is a flow chart of a communication method according to an embodiment of the present application. As shown in fig. 10, the communication method includes steps S1001 to S1003, and the method execution body shown in fig. 10 may be a terminal device and/or a network device, or the method execution body shown in fig. 10 may be a chip in the terminal device and/or a chip in the network device, or the method execution body shown in fig. 10 may be another device capable of executing the method, which is not limited herein. For convenience of description, a terminal device will be described as an example.

S1001, the terminal equipment sends first information to the network equipment.

In some possible embodiments, 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. The first information may be understood to include resident information of the terminal device. It is understood that the residence information of the terminal device may indicate that the terminal device resides in the first cell or the first frequency domain resource. The residence information may include any one or more of cell information, carrier information, or band information. 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 general, the cell information may be an identity (cell identity) of a cell, or an index (index) of a cell, for example, the identity of a cell may be a physical cell identity (physical cell identity, PCI) of a cell, or a cell identity or a global cell identity (cell global identity, CGI) in a public land mobile network (public land mobile network, PLMN)/non-public network (NPN), etc., and for example, the index of a cell may be an index allocated by a network device to a cell in an aggregated spectrum, etc., which is not limited herein. The carrier information may be an identification of a carrier, an index of a carrier, or a frequency point of a carrier, for example, the index of a carrier may be an index allocated by a network device to a carrier in an aggregated spectrum, for example, and the identification or frequency point of a carrier may be an absolute radio channel number (absolute radio frequency channel number, ARFCN), or the like, which is not limited herein. The band information may be a band indication (frequency band indicator), an identification of a band, or an index of a band, for example, the index of a band may be an index of a network device assigned to a band within the aggregated spectrum, and the like, without limitation. In general, a frequency band (band) is a broader frequency domain range, and there may be one or more carriers on a band, and one carrier may correspond to one or more cells.

In one possible implementation, the first information may be carried in a message a in a first random access procedure, where the first random access procedure may be a two-step random access procedure. That is, the terminal device may transmit the first information in message a of the two-step random access procedure. The message a may further include identification information of the terminal device, which is not limited herein. Wherein the identification information of one terminal device is used for marking one terminal device. It can be appreciated that the message a may further include information such as a random access preamble, a PUSCH load, etc., which is not limited herein.

In another possible implementation, the first information may be sent to the network device through a MAC CE, DCI or RRC message instead of being carried or carried in the message a, that is, the first information may be sent to the network device through a MAC CE, DCI or RRC message or the like. The MAC CE, DCI or RRC message used to carry the first information may further include identification information of the terminal device, which is not limited herein. It is understood that the resources of the MAC CE, DCI, RRC message, or the like, which transmit the first information, may be network configured, without limitation.

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

Alternatively, in some possible embodiments, the first information may also be understood to include paging listening information of the terminal device, where the paging listening information of the terminal device may instruct the terminal device to listen for pages in the first cell or the first frequency domain resource. The paging listening information may include any one or more of cell information, carrier information, or band information, etc. For the details of the cell information, the carrier information, and the band information (for example, PCI, CGI, band indication, etc.) in the paging listening information, the description of the details of the cell information, the carrier information, and the band information may be referred to in the description of the residence information, and will not be repeated herein. Similarly, when the first information includes paging monitoring information of the terminal device, the sending manner of the first information may be the message a carried in the first random access procedure, or carried in the MAC CE, or carried in the DCI, or carried in the RRC message for sending, which will not be described herein.

Alternatively, in some possible embodiments, the camping information may also be used to indicate the priority of the cell in which the terminal device camps or the priority of the camping frequency domain resource. Optionally, the paging listening information may also be used to instruct the terminal device to perform paging listening on the priority of the cell or the priority of the frequency domain resource performing paging listening. Here, the priority of the cell where the terminal device resides may be understood to include the cell where the terminal device resides and the priority relation of the cell, and the priority of the frequency domain resource where the terminal device resides may be understood to include the frequency domain resource where the terminal device resides and the priority relation of the frequency domain resource. Accordingly, the priority of the cell in which the terminal device performs paging listening may be understood as including the cell in which the terminal device performs paging listening and the priority relationship of the cell, and the priority of the frequency domain resource in which the terminal device performs paging listening may be understood as including the frequency domain resource in which the terminal device performs paging listening and the priority relationship of the frequency domain resource.

It should be noted that, for convenience of understanding, in the following steps, the first information includes residence information of the terminal device, and the residence information indicates that the terminal device resides in the first cell or the first frequency domain resource for example.

S1002, the terminal equipment receives feedback information of first information from the network equipment.

In some possible embodiments, for the network device, when the network device receives the first information from the terminal device, the network device may process the received first information and send feedback information after the first information is processed to the terminal device. Accordingly, the terminal device may receive feedback information of the first information from the network device. In general, the feedback information may be used for the network device to confirm the first cell or the first frequency domain resource transmitted by the terminal device. Or, the feedback information may also be used for the network device to reject the first cell or the first frequency domain resource sent by the terminal device. Alternatively, the feedback information may be used for 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 understood that the feedback information is used for the network device to indicate a new cell (e.g. a second cell) or a new frequency domain resource (e.g. a second frequency domain resource) for the terminal device; for example, if the network device knows that a certain cell or a certain frequency domain resource has more terminal devices camping on, the network device may let the terminal devices that are camping on the cell or the frequency domain resource subsequently instruct to change the camping cell or the frequency domain resource to balance the load on the respective cell or frequency domain resource. For convenience of description, the embodiment of the present application may describe a new cell indicated by the network device as the terminal device as the second cell, and describe a new frequency domain resource indicated by the network device as the terminal device 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 roles of the feedback information will be described in detail below, respectively.

In one possible implementation, when the first information includes residence information of the terminal device, and the residence information of the terminal device indicates that the terminal device resides in the first cell or the first frequency domain resource, if the network device indicates that the terminal device has received or agreed to reside in the first cell or the first frequency domain resource, the feedback information is used to confirm that the terminal device resides in the first cell or the first frequency domain resource. Therefore, after receiving the feedback information, the terminal device may remain camping on the first cell or the first frequency domain resource according to the feedback information.

In one possible implementation, when the first information includes residence information of the terminal device, and the residence information of the terminal device indicates that the terminal device resides in the first cell or the first frequency domain resource, if the network device indicates that the terminal device is not allowed to reside in the first cell or the first frequency domain resource, the feedback information may be used to reject the terminal device residing 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 residing in the first cell or the first frequency domain resource. Therefore, the terminal device may reselect a new cell or a new frequency domain resource to camp according to the feedback information, and after reselecting the new cell or the new frequency domain resource to camp, send residence information for indicating the new cell or the new frequency domain resource to the network device again until the network device agrees that the terminal device camps on the new cell or the new frequency domain resource. For example, assuming that after receiving feedback information from the network device that the terminal device is prevented from camping on the first cell or the first frequency domain resource, the terminal device reselects a new cell to be the third cell, or the reselected new 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 one possible implementation, when the first information includes residence information of the terminal device, and the residence information of the terminal device indicates that the terminal device resides in the first cell or the first frequency domain resource, if the network device indicates that the terminal device is not allowed to reside in the first cell or the first frequency domain resource, and the network device needs to re-designate a new residence cell or residence frequency domain resource for the terminal device, the feedback information may be used to designate that the terminal device resides in the second cell or the second frequency domain resource. Therefore, after receiving the feedback information, the terminal device can switch from the first cell or the first frequency domain resource where the terminal device originally resides to reside on the second cell or the second frequency domain resource according to the feedback information.

When the feedback information is used to indicate a new cell (for example, schematically illustrated as a second cell) or a new frequency domain resource (for example, schematically illustrated as a second frequency domain resource) to the terminal device, the feedback information may also include any one or more of cell information, carrier information, or frequency band information, etc., where the second cell may be a cell indicated by the cell information in the feedback information, the second frequency domain resource may be a carrier indicated by the carrier information in the feedback information, or the second frequency domain resource may be a frequency band indicated by the frequency band information in the feedback information. For the details of the cell information, the carrier information, and the band information (e.g., PCI, CGI, band indication, etc.) in the feedback information, the description of the details of the carrier information and the band information in the above description of the residence information in step S1001 will be omitted here.

Also, when the first information includes paging listening information of the terminal device, an understanding of feedback information with respect to the paging listening information can be found in the description of the feedback information with respect to the resident information when the first information includes the resident information of the terminal device described above. For example, the feedback information may be used to confirm that the terminal device monitors for paging in the first cell or the first frequency domain resource, or the feedback information may be used to reject that the terminal device monitors for paging in the first cell or the first frequency domain resource, or the feedback information may be used to designate that the terminal device monitors for paging in the second cell or the second frequency domain resource, and so on, which will not be described herein.

It should be noted that, in one possible implementation, the feedback information may be carried in a message B in a first random access procedure, where the first random access procedure may be a two-step random access procedure. That is, the network device may transmit feedback information in message B of the two-step random access procedure. The message B may further include a rollback RAR (fallbackRAR) or a success RAR (successRAR), which are not limited herein. Optionally, the feedback information may also be carried in the fallback RAR or the successful RAR included in the message B, which is not limited herein.

In one possible implementation, the feedback information may also be sent not carried in message B, but rather carried in a MAC CE, DCI or RRC message for sending to the terminal device. It is understood that the resources for transmitting the MAC CE, DCI, or RRC message may be configured by the network device for the terminal device, which is not limited herein.

In one possible implementation, the feedback information may also be an implicit indication. For example, the message B in the first random access procedure may be understood as a feedback or be described as having the function of feedback information, but the message B does not carry any other information (such as feedback information) except the information related to the first random access procedure, where if the terminal device successfully receives the message B, the network device is considered to confirm that the terminal device resides in the first cell or the first frequency domain resource; if the terminal equipment does not successfully receive the message B, the network equipment is considered to not confirm that the terminal equipment resides in the first cell or the first frequency domain resource. For another example, after receiving the first information from the terminal device, the network device may not send the feedback information of the first information, and accordingly, after sending the first information, the terminal device may not need to perform the step of receiving the feedback information (i.e. step S1002), that is, step S1002 in the embodiment of the present application is an optional step. In this case, the terminal device may not determine the cell or the frequency domain resource where the terminal device finally resides according to the feedback information, i.e. the terminal device may reside in the first cell or the first frequency domain resource, and the network device also defaults to the terminal device residing in 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 may determine the cell or the frequency domain resource where the terminal device resides, 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 is confirmed to reside in the first cell or the first frequency domain resource, the terminal device remains to reside in the first cell or the first frequency domain resource indicated by the terminal device and remains in the RRC idle state or the 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 resides on the second cell or the second frequency domain resource indicated by the network device and remains in the RRC idle state or the RRC inactive state.

S1003, the terminal equipment monitors paging according to the feedback information.

In some possible embodiments, when a network device needs to page a certain terminal device, the network device may send a page or paging message on the cell or frequency domain resource where the terminal device resides. Accordingly, the terminal device may listen for pages on its own camping cell or frequency domain resources, or be described as receiving pages or paging messages from the network device. For example, when the feedback information sent by the network device indicates that the terminal device is confirmed to reside in the first cell or the first frequency domain resource, the terminal device listens for pages 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 listens for pages on the second cell or the second frequency domain resource.

In the embodiment of the present application, for the scenario of spectrum aggregation, the terminal device reports its residence information or paging monitoring information (for example, residence cell or carrier or frequency band) to the network device, so that the network device may obtain the cell or carrier or frequency band information where the terminal device resides, and further, when the network device initiates paging to the terminal device, the network device may determine the cell or carrier or frequency band for accurately sending paging, without sending paging on all or multiple cells or carriers or frequency bands. On one hand, unnecessary paging overhead of the network equipment is reduced, so that paging can reach the paged terminal equipment more accurately and efficiently; on the other hand, the influence of paging on other irrelevant terminal equipment can be reduced, and the paging false alarm in the system is reduced. In addition, after the terminal equipment sends the resident cell or carrier or frequency band information, the network equipment can indicate or change the resident cell or carrier or frequency band of the terminal equipment to the terminal equipment according to the resident condition in the network equipment, so that the load of the cell or carrier or frequency band in the network can be balanced, and the problem that the paging false alarm is serious and the like caused by overload of a certain cell or carrier or frequency band is avoided.

Referring to fig. 11, fig. 11 is another flow chart of the communication method provided in the embodiment of the application. As shown in fig. 11, the communication method includes steps S1101 to S1104, and the method execution body shown in fig. 11 may be a terminal device and/or a network device, or the method execution body shown in fig. 11 may be a chip in the terminal device and/or a chip in the network device, or the method execution body shown in fig. 11 may be another device capable of executing the method, which is not limited herein. For convenience of description, a terminal device will be described as an example.

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

In some possible implementations, the network device broadcasts the second information, and the terminal device receives the second information from the network device accordingly. It can be appreciated that the second information is used to configure random access resources. It may be appreciated that the random access resource configured based on the second information may include a first random access resource, where the first random access resource is associated with a first cell or a first frequency domain resource, or is described as first random access resource associated with first information, where the first information includes residence information of the terminal device or paging monitoring information, where the residence information of the terminal device indicates that the terminal device resides in the first cell or the first frequency domain resource, and the paging monitoring information indicates that the terminal device listens for pages in the first cell or the first frequency domain resource. For the understanding of the first information, reference is made to the description of the first information in step S1001 of fig. 10, and no further description is given here.

Optionally, the random access resources may include one or more of a second random access resource, a third random access resource, and so on, in addition to the first random access resource. That is, the second information may be used to configure at least one random access resource for the terminal device. Wherein the random access resource may comprise a random access channel Occasion (RACH timing, RO), and/or a random access preamble (random access preamble). Where RO may be understood as a time-frequency domain resource for transmitting message 1 or a preamble in a random access procedure.

It should be noted that different random access resources may be associated with different cell or frequency domain resources, i.e. one random access resource is associated with one cell or frequency domain resource. For example, a first random access resource is associated with a first cell or first frequency domain resource, a second random access resource is associated with a second cell or second frequency domain resource, and a third random access resource is associated with a third cell or third frequency domain resource. Alternatively, one random access resource may be associated with a plurality of cells or a plurality of frequency domain resources. For example, the first random access resource may be associated with a first cell or a first frequency domain resource, or may be associated with a second cell or a second frequency domain resource, or the like, which is not limited herein. Alternatively, multiple random access resources may 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 each associated with a first cell or a 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 resource, and the third frequency domain resource are different from each other. For ease of understanding, the following embodiments of the present application will be described by taking different random access resources and different cell or frequency domain resource associations as examples, and for example, first information associated with a first random access resource (i.e., a first cell or a first frequency domain resource) is described by taking an example.

S1102, the terminal equipment sends first information to the network equipment on the first random access resource.

In some possible embodiments, the terminal device may send the first information to the network device on the first random access resource, and accordingly, the network device may receive the first information from the terminal device on the first random access resource. That is, the UE may determine a random access resource associated with a cell or carrier or frequency band according to its own camping cell or carrier or frequency band, and initiate random access on the random access resource associated with the cell or carrier or frequency band. For ease of understanding, the embodiments of the present application are exemplified by the terminal device camping on the first cell or the first carrier or the first frequency band, where the following first carrier and the first frequency band may be collectively referred to as the first frequency domain resource. Wherein the first cell or the first frequency domain resource is associated with a first random access resource.

For example, assuming that the first random access resource comprises a first RO, the UE may initiate random access on the camping first cell or the first RO associated with the first frequency domain resource. As another example, assuming that the first random access resource includes a first random access preamble, the UE may initiate random access using the first random access preamble associated with the camped first cell or first frequency domain resource. As another example, assuming that the first random access resource includes a first RO and a first random access preamble, the UE may use the first random access preamble and initiate random access on the first RO.

In one possible implementation, the first information may be carried in message 1 in the second random access procedure, or it is also understood that the first information corresponds to message 1 in the second random access procedure, i.e. message 1 is equal to the first information. The second random access procedure may be a four-step random access procedure. That is, the terminal device may transmit the first information in message 1 of the four-step random access procedure. The message 1 or the first information may include a preamble, etc., which is not limited herein.

It should be noted that, for the terminal device, the sending timing of initiating random access or sending the message 1 (i.e., the first information) may be after the terminal device selects or reselects to camp on a new cell. Message 1 may also be described as a random access request, without limitation.

And S1103, the terminal equipment receives feedback information from the network equipment.

In some possible implementations, 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 may determine, according to the random access resource used by the terminal device for initiating random access, that is, the first random access resource, a cell or a frequency domain resource where the terminal device resides, that is, determine that the terminal device 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 is 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 is 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.

Accordingly, the terminal device may receive feedback information of the first information from the network device, or it is also understood that the terminal device receives feedback information from the network device for the first random access resource associated with the first information. In general, the feedback information may be used by the network device to confirm that the terminal device resides on a first cell or first frequency domain resource associated with the first random access resource. Alternatively, the feedback information may be used for the network device to refuse the terminal device to camp on a first cell or a first frequency domain resource associated with the first random access resource. Alternatively, the feedback information may be used by the network device to instruct the terminal device to camp on a new cell or a new frequency domain resource while rejecting the terminal device to camp on the first cell or the first frequency domain resource associated with the first random access resource, or the feedback information may be used by the network device to instruct the terminal device to camp on a new cell (e.g., illustrated as a second cell) or a new frequency domain resource (e.g., illustrated as a 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.

In one possible implementation, the feedback information may be carried in message 2 in a second random access procedure, which may be a four-step random access procedure. That is, the network device may transmit feedback information in message 2 of the four-step random access procedure, and accordingly, the terminal device may receive message 2 of the second random access procedure, the message 2 including the feedback information. The message 2 may include, in addition to feedback information, uplink resource scheduling for the terminal device to send the message 3, a preamble identifier, TA, TC-RNTI, and the like, which are not limited herein. Therefore, the terminal device may further use the uplink resource carried in the message 2 to send the message 3 to the network device, where the message 3 may include the identification information of the terminal device, and the like, which is not limited herein. Wherein the identification information of one terminal device is used for uniquely marking one terminal device. Accordingly, after receiving the message 3 from the network device, the network device may send a message 4 to the terminal device, where the message 4 includes contents such as a contention resolution message, an RRC message, and the like, which is not limited herein.

For example, referring to fig. 12, fig. 12 is a flow chart illustrating a process of sending feedback information based on a four-step random access procedure according to an embodiment of the present application. As shown in fig. 12, the communication flow 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 a message 1 to the network device on the first random access resource. Wherein the first information is included in the message 1 or understood that the first information corresponds to the message 1. S1203, the network device sends a message 2 to the terminal device. Wherein the feedback information is included in message 2. And S1204, the terminal equipment sends a message 3 to the network equipment. The message 3 includes identification information of the terminal device. And S1205, the network equipment sends a message 4 to the terminal equipment.

In one possible implementation, the feedback information may be carried in message 4 in a second random access procedure, which may be a four-step random access procedure. That is, the network device may send feedback information in message 4 of the four-step random access procedure. It should be noted that, in the scenario that the feedback information is carried in the message 4 and sent, before sending the message 4 carrying the feedback information, the network device may also send the message 2 to the terminal device, where the message 2 includes uplink resource scheduling for the terminal device to send the message 3, so, after the terminal device receives the message 2 from the network device, the terminal device may use the uplink resource scheduled by the network device to send the message 3 to the terminal device, where the message 3 includes identification information of the terminal device and so on, and is not limited herein.

For example, referring to fig. 13, fig. 13 is another flow chart of sending feedback information based on a four-step random access procedure according to an embodiment of the present application. As shown in fig. 13, the communication flow based on the four-step random access procedure includes: s1301, the network equipment sends second information to the terminal equipment. S1302, the terminal device sends a message 1 to the network device on the first random access resource. Wherein the first information is included in the message 1 or understood that the first information corresponds to the message 1. And S1303, the network equipment sends a message 2 to the terminal equipment. S1304, the terminal device sends a message 3 to the network device. The message 3 includes identification information of the terminal device. S1305, the network device sends a message 4 to the terminal device. Wherein the feedback information is included in the message 4.

In one possible implementation, the feedback information may also be an implicit indication. For example, the message 2 or the message 4 in the second random access procedure may be understood as a feedback or be described as having the function of feedback information, but the message 2 or the message 4 does not carry any other information (such as feedback information) except the information related to the second random access procedure, in this case, if the terminal device successfully receives the message 2 or the message 4, the network device is considered to confirm that the terminal device resides in the first cell or the first frequency domain resource; if the terminal equipment does not successfully receive the message 2 or the message 4, the network equipment is considered to not confirm that the terminal equipment resides in the first cell or the first frequency domain resource. For another example, after receiving the first information from the terminal device, the network device may not send the feedback information of the first information, and accordingly, after sending the first information, the terminal device may not need to perform the step of receiving the feedback information (i.e. step S1103), that is, step S1103 in the embodiment of the present application is an optional step. In this case, the terminal device may not determine the cell or the frequency domain resource where the terminal device finally resides according to the feedback information, i.e. the terminal device may reside in the first cell or the first frequency domain resource, and the network device also defaults to the terminal device residing in the first cell or the first frequency domain resource.

When the feedback information is used to indicate a new cell (for example, schematically illustrated as a second cell) or a new frequency domain resource (for example, schematically illustrated as a second frequency domain resource) to the terminal device, the feedback information may also include any one or more of cell information, carrier information, or frequency band information, etc., where the second cell may be a cell indicated by the cell information in the feedback information, the second frequency domain resource may be a carrier indicated by the carrier information in the feedback information, or the second frequency domain resource may be a frequency band indicated by the frequency band information in the feedback information. For the details of the cell information, the carrier information, and the band information (e.g., PCI, CGI, band indication, etc.) in the feedback information, the description of the details of the carrier information and the band information in the above description of the residence information in step S1001 of fig. 10 will not be repeated here.

S1104, the terminal equipment monitors paging according to the feedback information.

In the embodiment of the present application, for a scenario of spectrum aggregation, second information is sent to a terminal device through a network device, so that a random access resource associated with a downlink frequency domain resource or a cell is configured for the terminal device based on the second information, so that the network device can determine the frequency domain resource or the cell where the terminal device resides according to the random access resource used when the terminal device initiates random access, so as to accurately page the terminal device. On one hand, unnecessary paging overhead of the network equipment is reduced, so that paging can reach the paged terminal equipment more accurately and efficiently; on the other hand, the influence of paging on other irrelevant terminal equipment can be reduced, and the paging false alarm in the system is reduced. In addition, after the terminal equipment sends the resident cell or carrier or frequency band information, the network equipment can indicate or change the resident cell or carrier or frequency band of the terminal equipment to the terminal equipment according to the resident condition in the network equipment, so that the load of the cell or carrier or frequency band in the network can be balanced, and the problem that the paging false alarm is serious and the like caused by overload of a certain cell or carrier or frequency band is avoided.

Referring to fig. 14, fig. 14 is another flow chart of the communication method provided in the embodiment of the application. As shown in fig. 14, the communication method includes steps S1401 to S1403, where the method execution body shown in fig. 14 may be a terminal device and/or a network device, or the method execution body shown in fig. 14 may be a chip in a terminal device and/or a chip in a network device, or the method execution body shown in fig. 14 may be another device capable of executing the method, which is not limited herein. For convenience of description, a terminal device will be described as an example.

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

In some possible embodiments, 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 resident information or paging listening information of the terminal device, or it is understood that the third information includes resident information or paging listening information configured by the network device for the terminal device. "configuration" is also understood herein as "indicating" or "designating". That is, the at least one camping cell or the at least one camping frequency domain resource indicated by the camping information may be a cell or a frequency domain resource that the network device designates for the terminal device, and that the terminal device may select at the time of camping. The at least one cell or at least one frequency domain resource indicated by the paging monitoring information and used for monitoring paging is a cell or frequency domain resource designated by the network equipment for the terminal equipment and available for the terminal equipment to select during paging monitoring. For convenience of description, the following steps are schematically illustrated by taking the first information including the resident information of the terminal device as an example.

In general, the network device may determine to indicate to the terminal device a camping cell or camping frequency domain resources based on the frequency band capabilities supported by the terminal device. That is, the terminal device may report capability information about the frequency band supported by itself to the network device, where the capability information includes at least one frequency band or at least one frequency band combination supported by the terminal device. Wherein one band combination may include at least one band. For example, assuming that one band combination supported by the terminal device to report to the network device is {700MHz,800MHz,900MHz }, the third information transmitted 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., without limitation herein.

It should be noted that the band combinations may be marked by an identifier of a band combination, which may be specified by a protocol or preconfigured or negotiated between the terminal device and the network, where the identifier of one band combination is used to identify one band combination. For example, the band combination {700,800,900} MHz has an identification of 1, and the band combination {800,900} MHz has an identification of 2. Each frequency band included in the frequency band combination may be a frequency band value or may be marked by the identification of the frequency band. For example, the band combination {700,800,900} MHz, and for example, the band combination may also be { frequency band indicator 1,frequency band indicator 2,frequency band indicator 3}, where frequency band indicator 1/2/3 corresponds to 700/800/900MHz, respectively.

Wherein the camping information includes cell information, carrier information, or band information. The cell indicated by the cell information comprises a third cell, the carrier indicated by the carrier information comprises a third frequency domain resource, and the frequency band indicated by the frequency band information comprises the third frequency domain resource. That is, the cell indicated by the cell information sent by the network device in the embodiment of the present application may be one cell or a plurality of cells, and the one cell may be a third cell, or the plurality of cells include the third cell, and may further include a first cell, a second cell, a fourth cell, or a fifth cell, and the like, which is not limited herein. Accordingly, the carrier indicated by the carrier information may be one carrier or a plurality of carriers, the one carrier may be a third carrier, or the plurality of carriers may include a third carrier, and may further include a first carrier, a second carrier, a fourth carrier, a fifth carrier, or the like, which is not limited herein. The frequency band indicated by the frequency band information may be one frequency band or a plurality of frequency bands, the one frequency band may be a third frequency band, or the plurality of frequency bands may include the third frequency band, and may further include a first frequency band, a second frequency band, a fourth frequency band, a fifth frequency band, or the like, without limitation.

For an understanding of the specific expression forms of the carrier information and the band information (for example, PCI, CGI, band indication, etc.) of the cell information included in the residence information, reference may be made to the description of the specific expression forms of the carrier information and the band information in step S1001 of fig. 10 when the residence information in the first information is described, and the description of the specific expression forms of the carrier information and the band information is not repeated here.

Optionally, the camping information sent by the network device may further indicate a priority of a camping cell or a priority of a camping frequency domain resource designated by the network device for the terminal device. That is, the camping information indicates, in addition to at least one cell or at least one frequency domain resource designated by the network device for the terminal device, a priority relationship of the at least one cell or at least one frequency domain resource. Illustratively, the resident cell of the terminal device indicated by the resident information at least includes a third cell and a fourth cell, and the priority of the third cell is higher than the priority of the fourth cell; illustratively, the resident frequency domain resource of the terminal device indicated by the resident information at least includes a third carrier and a fourth carrier, and the priority of the third carrier is higher than the priority of the fourth carrier; illustratively, the resident frequency domain resource of the terminal device indicated by the resident information includes at least a third frequency band and a fourth frequency band, and the priority of the third frequency band is higher than the priority 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, i.e., 700MHz has priority higher than 800 MHz.

As 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 has priority 2, priority 1 is higher than priority 2, i.e., 800MHz and 900MHz have the same priority, and 700MHz has priority higher than 800MHz and 900 MHz.

In one possible implementation, the third information may be carried in RRC signaling, i.e. the network device may send the third information to the terminal device through RRC signaling. The RRC signaling may be an RRC release message (RRCRelease message), etc., without limitation.

When the network device in the embodiment of the present application is a RAN, for example, taking the RAN as an base station, the base station may store third information indicated to the terminal device as a context (context) of the terminal device, or forward the third information to a new serving base station of the terminal device for storage during handover, or send the third information 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 possible embodiments, the terminal device may determine a third cell or a third frequency domain resource according to the third information. That is, the terminal device may select one cell or one frequency domain resource to camp on from at least one cell or at least one frequency domain resource included in the third information. Optionally, the terminal device may further 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 convenience of description, in this embodiment, the terminal device selects one cell to camp on as a third cell, or takes one frequency domain resource to camp on as a third frequency domain resource, that is, the third cell is the cell to camp on by the terminal device, and the third frequency domain resource is the frequency domain resource to camp on by the terminal device.

It will be appreciated that when the third information includes only one cell (e.g., the third cell) or one frequency domain resource (e.g., the third frequency domain resource), the terminal device may select to camp on the third cell or the third frequency domain resource included in the third information. When the third information includes two or more cells or frequency domain resources, the terminal device may select one cell (e.g., a third cell) or frequency domain resource (e.g., a third frequency domain resource) from the two or more cells or frequency domain resources according to the priority relationship of the cells or frequency domain resources for camping. Alternatively, when the third information includes two or more cells or frequency domain resources, the terminal device may select one cell (e.g., a third cell) or frequency domain resource (e.g., a third frequency domain resource) from the two or more cells or frequency domain resources according to the priority relation of the cells or frequency domain resources and the cell quality for camping. Alternatively, when the third information includes two or more cells or frequency domain resources, the terminal device may randomly select one cell (e.g., the third cell) or frequency domain resource (e.g., the third frequency domain resource) from the two or more cells or frequency domain resources to camp on, which is not limited herein.

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

By way of further example, assuming that the third information sent by the network device to the terminal device includes a band combination {700MHz,800MHz }, where 700MHz has a priority higher than 800MHz, the terminal device may select the highest priority band to camp on, i.e., the terminal device may camp on 700 MHz.

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

By way of further example, assuming that the third information sent by the network device to the terminal device includes a band combination {700MHz,800MHz }, where 700MHz has a higher priority than 800MHz, but the cell quality of the cell at 700MHz is lower than the cell quality of the cell at 800MHz or the cell at 700MHz does not meet the quality requirement for camping, e.g., the cell quality is lower than a certain threshold, the terminal device may choose to camp on 800 MHz.

By way of further example, assuming that the third information sent by the network device to the terminal device includes a band combination {700MHz,800MHz }, where 700MHz has a priority higher than 800MHz, the cell quality of the cell at 700MHz is lower than a preset cell quality threshold, and the cell quality of the cell at 800MHz is higher than a preset cell quality threshold, the terminal device may choose to camp on 800 MHz.

As another example, assuming that the third information sent by the network device to the terminal device includes a band combination {700MHz,800MHz }, where 700MHz has a higher priority than 800MHz, where the cell quality of the cell at 700MHz and the cell quality of the cell at 800MHz are both higher than a preset cell quality threshold, the terminal device may choose to camp on a band with better cell quality. For example, assuming that the cell quality of the cell at 700MHz is lower than the cell quality of the cell at 800MHz, the terminal device may choose to camp at 800 MHz.

By way of further example, assuming that the third information sent by the network device to the terminal device includes a band combination {700Mhz,800Mhz,900Mhz }, where 800Mhz and 900Mhz have the same priority and 700Mhz has a higher priority than 800Mhz and 900Mhz, the terminal device may prioritize to reside at 700Mhz and secondarily consider 800Mhz and 900Mhz. For example, assuming that the terminal device can search for a cell at 700Mhz or that the cell quality at 700Mhz is acceptable, the terminal device resides at 700Mhz; otherwise, the terminal device considers to reside at 800Mhz or 900Mhz, wherein when 800Mhz and 900Mhz can be searched at the same time, the terminal device can also select the frequency band residence with better cell quality on the two frequency bands.

Alternatively, the rule for selecting the cell or the frequency domain resource to be camped (for convenience of description, hereinafter referred to as camping rule) may be a priority rule described above, or may be one cell or frequency domain resource out of 2 or more cells or frequency domain resources included in the specified third message. For example, assuming that the third information transmitted by the network device to the terminal device includes a band combination {700MHz,800MHz }, where the resident rule corresponding to the band combination {700MHz,800MHz } is to preferentially reside at 800MHz, the terminal device resides at 800MHz. Alternatively, the camping rule may also be to select the lowest or highest band camping within the band combination supported by the terminal device. For example, assuming that the third information sent by the network device to the terminal device includes the band combination {700MHz,800MHz }, the camping rule may be that the terminal device selects the lowest band camping within the band combination included in the third information, i.e., camping at 700MHz. As another example, the camping rule may be that the terminal device selects the highest frequency band camping within the frequency band combination comprised by the third information, i.e. camping at 800MHz.

It should be noted that the resident rule may be preconfigured or defined by a protocol or provided by the network device. The pre-configuration may be understood as, among other things, presetting resident rules within the terminal device, e.g. the manufacturer embeds resident rules in the terminal device. Protocol specification may be understood as defining a camping rule in the protocol, and provision by the network device may be understood as the terminal device may receive the camping rule from the network device, and further determine a third cell or a third frequency domain resource according to the received camping rule and third information.

S1403, the terminal device listens for a page on the third cell or the third frequency domain resource.

In some possible embodiments, when a network device needs to page a certain terminal device, the network device may send a page or paging message on the cell or frequency domain resource where the terminal device resides. Accordingly, the terminal device may listen for pages on its own camping cell or frequency domain resources, or be described as receiving pages or paging messages from the network device.

For example, in the 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 accordingly, the terminal device may monitor for a page on the third cell or the third frequency domain resource. Wherein the at least one cell comprises a third cell and the at least one frequency domain resource comprises a third frequency domain resource.

For another example, in the embodiment of the present application, the network device may further determine, according to the residence rule, a third cell or a third frequency domain resource from at least one cell or at least one frequency domain resource included in the third information, and send a paging or paging message to the terminal device on the third cell or the third frequency domain resource, and accordingly, the terminal device may monitor the paging on the third cell or the third frequency domain resource.

It should be noted that, the network device sending the page to the terminal device and the network device sending the third information to the terminal device may be the same network device, or may also be different network devices, which are specifically determined according to the actual application scenario, and are not limited herein.

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

In the embodiment of the present application, for the scenario of spectrum aggregation, a cell or a frequency domain resource where the cell or the frequency domain where the frequency domain is specified to reside is specified to be specified to the terminal device through the network device, and the network device and the core network store the cell or the frequency domain resource where the terminal device is specified to reside, so that when the network device initiates paging to the terminal device, the network device can determine the cell or the frequency domain resource where the paging is sent, without sending the paging on all the cells or the frequency domain resources supported by the terminal device. On one hand, unnecessary paging overhead of the network is reduced, so that paging can reach the paged terminal equipment more accurately and efficiently; on the other hand, the influence of paging on other irrelevant terminal equipment can be reduced, and the paging false alarm in the system is reduced. In addition, since the cell or the frequency domain resource where the terminal device resides is specified by the network device, the network device can reasonably determine the cell or the frequency domain resource where the terminal device resides according to the residence condition in the network, for example, so that the load on the cell or the frequency domain resource in the network can be balanced, and the problems of serious paging false alarm and the like caused by overload of a certain frequency band/carrier/cell can be avoided.

Referring to fig. 15, fig. 15 is another flow chart of the communication method provided in the embodiment of the application. As shown in fig. 15, the communication method includes steps S1501 to S1502, and the method execution body shown in fig. 15 may be a terminal device and/or a network device, or the method execution body shown in fig. 15 may be a chip in the terminal device and/or a chip in the network device, or the method execution body shown in fig. 15 may be another device capable of executing the method, which is not limited herein. For convenience of description, a terminal device will be described as an example.

S1501, the terminal equipment determines a third cell or a third frequency domain resource according to the priority relation.

In some possible embodiments, the terminal device may determine a third cell or a third frequency domain resource according to the priority relation. Wherein the priority relation comprises the priority of the terminal device to choose the cell where the terminal device resides or the priority of the frequency domain resource where the terminal device resides. Wherein the priority relationship may be pre-configured or protocol-specified or provided by the network device.

For example, referring to fig. 16, fig. 16 is a schematic view of a scenario provided in an embodiment of the present application for providing residence rules based on a network device. As shown in fig. 16, S1601, the network device transmits a stay rule to the terminal device. For example, the resident rule may be a priority relationship. S1602, the terminal equipment determines a third cell or a third frequency domain resource according to the priority relation. Accordingly, the network device determines a third cell or a third frequency domain resource according to the priority relationship. S1603, paging in a third cell or a third frequency domain resource. Specifically, when the network device needs to page the terminal device, the network device sends a page on a third cell or a third frequency domain resource, and correspondingly, the terminal device monitors the page 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 priority in fig. 13, and no further description is given here. Alternatively, the rule for selecting the resident cell or frequency domain resource by the terminal device (i.e. the resident rule) may be, besides the priority relationship, one cell or frequency domain resource out of 2 or more cells or frequency domain resources supported by the specified terminal device. For example, assuming that the band combination supported by the terminal device is {700MHz,800MHz }, where the resident rule corresponding to the band combination {700MHz,800MHz } is to preferentially reside at 800MHz, the terminal device resides at 800MHz. Alternatively, the camping rule may also be to select the lowest or highest band camping within the band combination supported by the terminal device. For example, assuming that the band combination supported by the terminal device is {700MHz,800MHz }, where the camping rule selects the lowest band camping within the band combination supported by the terminal device for the terminal device, the terminal device camps at 700MHz. For another example, the camping rule selects the highest band camping within its supported band combination for the terminal device, then the terminal device camps at 800MHz. For ease of understanding, the following embodiments of the present application will take resident rules as priority relationships as examples.

In one possible implementation, the terminal device may determine a cell or a frequency domain resource in which the terminal device resides according to the priority relationship and its own band-related capability. In general, the terminal device may also send its own band related capability information to the network device, i.e. the terminal device may send at least one frequency domain resource or at least one combination of frequency domain resources to the network device. The at least one frequency domain resource or the at least one frequency domain resource combination includes a frequency domain resource supported by the terminal device to reside, for example, the at least one frequency domain resource or the at least one frequency domain resource combination includes a third frequency domain resource, optionally, the at least one frequency domain resource or the at least one frequency domain resource combination may further include a third frequency domain resource, a fourth frequency domain resource, and the like, which are specifically determined according to an actual application scenario, and are not limited herein.

In another possible implementation, the terminal device may receive third information from the network device, and further determine a cell or a frequency domain resource where the terminal device resides according to the priority relation and the third information. For the understanding of the third information, reference is made to the description of the third information in fig. 13, and no further description is given here.

It should be noted that, for convenience of understanding, the embodiment of the present application is described by taking a cell or a frequency domain resource where the terminal device may determine itself to reside according to a priority relationship and its own band-related capability as an example. Similarly, for convenience of understanding, in the embodiment of the present application, the resident cell selected by the terminal device is taken as the third cell, or the resident frequency domain resource is taken as the third frequency domain resource. That is, the third cell is a cell where the terminal device resides, the third frequency domain resource is a frequency domain resource where the terminal device resides, or it is understood that the third cell is a cell where the terminal device listens for paging, and the third frequency domain resource is a frequency domain resource where the terminal device listens for paging.

S1502, the terminal equipment monitors paging in a third cell or a third frequency domain resource.

In some possible embodiments, when the network device needs to page a certain terminal device, the core network device or the anchor base station provides the band information supported by the paging terminal device to the network device participating in paging, so that the network device may determine that the terminal device resides in a third cell or a third frequency domain resource based on a residence rule (for example, a priority relationship) and in combination with the band information supported by the terminal device, and then send the paging on the third cell or the third frequency domain resource. Accordingly, since the terminal device to be paged determines that the resource resides in the third cell or the third frequency domain according to the priority relationship, the terminal device can monitor the paging in the third cell or the third frequency domain resource.

For example, please refer to fig. 17, fig. 17 is a schematic diagram of a paging scenario provided in an embodiment of the present application. As shown in fig. 17, S1701, third information from the network device and the priority relationship are received. S1702, determining a third cell or a third frequency domain resource according to the priority relation and the third information. The network device and the terminal device determine a third cell or a third frequency domain resource based on the priority relation and the third information. S1703, paging on a third cell or third frequency domain resource. Specifically, when the network device needs to page the terminal device, the network device sends a page on a third cell or a third frequency domain resource, and correspondingly, the terminal device monitors the page on the third cell or the third frequency domain resource.

For example, referring to fig. 18, fig. 18 is a schematic diagram of another paging scenario provided in an embodiment of the present application. As shown in fig. 18, S1801, the terminal device transmits at least one frequency domain resource combination to the network device. S1802, the network device sends the priority relation to the terminal device. S1803, paging on a third cell or third frequency domain resource. Wherein the network device and the terminal device both determine a third cell or a third frequency domain resource from the at least one frequency domain resource combination based on the priority relationship. And when the network equipment needs to page the terminal equipment, sending the paging on a third cell or a third frequency domain resource, and correspondingly, monitoring the paging on the third cell or the third frequency domain resource by the terminal equipment.

In the embodiment of the application, aiming at the scene of spectrum aggregation, by defining the residence rule and forwarding the band information supported by the terminal equipment between network elements during paging by the network, the network can determine the accurate cell or frequency domain resource for sending the paging when the network initiates the paging to the terminal equipment, and does not need to send the paging on all the cells or frequency domain resources supported by the terminal equipment. On one hand, unnecessary paging overhead of the network is reduced, so that paging can reach the paged terminal equipment more accurately and efficiently; on the other hand, the influence of paging on other irrelevant terminal equipment can be reduced, and the paging false alarm in the system is reduced. In addition, since the residence rule can be controlled by the network device (i.e. the network device sends the residence rule to the terminal device), the network device can reasonably determine and adjust the residence rule according to the residence condition in the network, and can balance the load of the cell or the frequency domain resource in the network, so as to avoid the problems of serious paging false alarm and the like caused by overload of a certain cell or frequency domain resource.

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

Referring to fig. 19, fig. 19 is a schematic structural diagram of a communication device according to an embodiment of the present application. The communication device shown in fig. 19 may be used to perform part or all of the functions of the terminal device in the method embodiments described above with respect to fig. 10-18. The device can be a terminal device, a device in the terminal device, or a device which can be matched with the terminal device for use. The communication device may also be a chip system. The communication apparatus shown in fig. 19 may include a transceiving unit 1901 and a processing unit 1902. The processing unit 1902 is configured to perform data processing. The transceiver unit 1901 integrates a receiving unit and a transmitting unit. The transceiver unit 1901 may also be referred to as a communication unit. Alternatively, the transceiver unit 1901 may be split into a receiving unit and a transmitting unit. The following processing unit 1902 and the transceiver unit 1901 are the same, and will not be described again. Wherein:

In a first implementation:

a transceiver unit 1901, configured to send first information, where the first information includes residence information or paging listening information of the terminal device;

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

Optionally, the residence information of the terminal device indicates that the terminal device resides in a first cell or a first frequency domain resource;

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

the processing unit 1902 is configured to monitor paging based on the feedback information by the transceiver unit 1901.

Optionally, the feedback information is used for confirming that the terminal device resides in the first cell or the first frequency domain resource;

The monitoring paging according to the feedback information includes:

and monitoring paging in the first cell or the first frequency domain resource.

Optionally, the feedback information is used for indicating the terminal device to reside in a second cell or a second frequency domain resource;

the monitoring paging according to the feedback information includes:

Optionally, the paging monitoring information indicates the terminal device to monitor paging in a first cell or a first frequency domain resource;

Optionally, the processing unit 1902 is further configured to:

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

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

Optionally, the sending the first information includes:

the receiving feedback information of the first information includes:

Optionally, the transceiver unit 1901 is further configured to:

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

Optionally, the camping information or the paging listening information indicates a priority of a camping cell or a priority of a camping frequency domain resource of the terminal device.

In a second implementation:

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

a processing unit 1902, configured to determine a third cell or a third frequency domain resource according to the third information, where the third cell is a cell where the terminal device resides or a cell for monitoring paging, and the third frequency domain resource is a frequency domain resource where the terminal device resides or a frequency domain resource for monitoring paging.

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

The processing unit 1902 is further configured to:

listening for pages on the third cell or the third frequency domain resource based on the transceiving unit 1901.

Optionally, the residence cell of the terminal device indicated by the residence information or the paging monitoring information at least includes the third cell and a fourth cell, and the priority of the third cell is higher than the priority of the fourth cell; or alternatively, the process may be performed,

Optionally, the residence cell of the terminal device indicated by the residence information or the paging monitoring information at least includes the third cell and a fourth cell;

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

Optionally, the third information indicates that the resident cell of the terminal device at least includes a third cell and a fourth cell, and the priority relationship at least includes that the priority of the third cell is higher than the priority of the fourth cell; or alternatively, the process may be performed,

In a third implementation:

a processing unit 1902, 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, the third frequency domain resource is a frequency domain resource where the terminal device resides, or the third cell is a cell where the terminal device monitors paging, and the third frequency domain resource is a frequency domain resource where the terminal device monitors paging; the priority relation comprises the priority of a resident cell or the priority of resident frequency domain resources of the terminal equipment;

The processing unit 1902 is configured to monitor for a page in the third cell or the third frequency domain resource based on the transceiving unit 1901.

Optionally, the apparatus further includes:

the transceiver 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 a frequency domain resource that the terminal device supports to reside, and the at least one frequency domain resource or the at least one frequency domain resource combination includes the third frequency domain resource.

Optionally, the transceiver unit 1901 is further configured to:

Other possible implementation manners of the communication apparatus may be referred to the description of the functions of the access network device in the method embodiments corresponding to fig. 10 to fig. 18, which are not repeated herein.

Referring to fig. 20, fig. 20 is a schematic structural diagram of another communication device according to an embodiment of the present application. The communication device shown in fig. 20 may be used to perform some or all of the functions of the network device in the method embodiments described above with respect to fig. 10-18. The device may be a network device, a device in a network device, or a device that can be used in cooperation with a network device. The communication device may also be a chip system. The communication apparatus shown in fig. 20 may include a transceiving unit 2001 and a processing unit 2002. Wherein:

in a first implementation:

a transceiver unit 2001 for receiving first information, where the first information includes residence information or paging listening information of the terminal device;

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

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

the processing unit 2002 is configured to send a page based on the transceiver unit 2001 according to the feedback information.

the sending paging according to the feedback information includes:

and sending paging in the first cell or the first frequency domain resource.

The sending paging according to the feedback information includes:

and sending paging in the second cell or the second frequency domain resource.

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

Optionally, the processing unit 2002 is further configured to:

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

Optionally, the receiving the first information includes:

the sending the feedback information of the first information includes:

Optionally, the transceiver unit 2001 is further configured to:

In a second implementation:

a transceiver unit 2001 configured to transmit third information, where the third information includes residence information or paging listening 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, where the third cell is a cell where the terminal device resides or a cell where paging is monitored, and the third frequency domain resource is a frequency domain resource where the terminal device resides or a frequency domain resource where paging is monitored.

the processing unit 2002 is further configured to:

a page is transmitted on the third cell or the third frequency domain resource based on the transceiving unit 2001.

In a third implementation:

a processing unit 2002, 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, the third frequency domain resource is a frequency domain resource where the terminal device resides, or the third cell is a cell where the terminal device listens for paging, and the third frequency domain resource is a frequency domain resource where the terminal device listens for paging; the priority relation comprises the priority of a resident cell or the priority of resident frequency domain resources of the terminal equipment;

the processing unit 2002 is configured to send a page in the third cell or the third frequency domain resource based on the transceiving unit 2001.

Optionally, the apparatus further includes:

the transceiver unit 2001 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 a frequency domain resource that the terminal device supports to reside, and the at least one frequency domain resource or the at least one frequency domain resource combination includes the third frequency domain resource.

Optionally, the transceiver unit 2001 is further configured to:

Referring to fig. 21, fig. 21 is a schematic structural diagram of another communication device according to an embodiment of the present application. As shown in fig. 21, the communication device may be a terminal device described in the embodiment of the present application, and is configured to implement the functions of the terminal device in fig. 10 to 18. For convenience of explanation, fig. 21 shows only major components of the terminal device 2100. As shown in fig. 21, the terminal device 2100 includes a processor, a memory, a control circuit, an antenna, and an input-output device. The processor is mainly used for processing communication protocols and communication data, controlling the entire terminal device 2100, executing software programs, and processing data of the software programs. The memory is mainly used for storing software programs and data. The control circuit is mainly used for converting baseband signals and radio frequency signals and processing the radio frequency signals. The antenna is mainly used for receiving and transmitting radio frequency signals in the form of electromagnetic waves. Input and output devices such as touch screens, display screens, microphones, keyboards, etc. are mainly used for receiving data input by a user and outputting data to the user.

Taking the terminal device 2100 as a mobile phone for example, when the terminal device 2100 is powered on, the processor may 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 is required to be transmitted wirelessly, the processor carries out baseband processing on the data to be transmitted and then outputs a baseband signal to the control circuit, and the control circuit carries out radio frequency processing on the baseband signal and then transmits the radio frequency signal outwards in the form of electromagnetic waves through the antenna. When data is transmitted to the terminal device 2100, the control circuit receives a radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor, which converts the baseband signal into data and processes the data.

Those skilled in the art will appreciate that for ease of illustration, fig. 21 shows only one memory and processor. In some embodiments, terminal device 2100 may include multiple processors and memory. The memory may also be referred to as a storage medium or storage device, etc., and embodiments of the present invention are not limited in this respect.

As an alternative implementation manner, the processor may include a baseband processor, which is mainly used to process the communication protocol and the communication data, and a central processor, which is mainly used to control the entire terminal device 2100, execute a software program, and process the data of the software program. The processor in fig. 21 integrates the functions of a baseband processor and a central processing unit, and those skilled in the art will appreciate that the baseband processor and the central processing unit may be separate processors, interconnected by bus technology, etc. The terminal device 2100 may include a plurality of baseband processors to accommodate different network systems, and the terminal device 2100 may include a plurality of central processors to enhance its processing power, and the respective 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 the communication data may be built in the processor, or may be stored in the storage unit in the form of a software program, which is executed by the processor to realize the baseband processing function.

In one example, the antenna and the control circuit having the transmission/reception function may be regarded as the transmission/reception unit 2110 of the terminal device 2100, and the processor having the processing function may be regarded as the processing unit 2120 of the terminal device 2100. As shown in fig. 21, the terminal device 2100 includes a transmitting/receiving unit 2110 and a processing unit 2120. The transceiver unit may also be referred to as a transceiver, transceiver device, etc. Alternatively, the device for implementing the receiving function in the transceiver unit 2110 may be regarded as a receiving unit, and the device for implementing the transmitting function in the transceiver unit 2110 may be regarded as a transmitting unit, i.e. the transceiver unit 2110 includes a receiving unit and a transmitting unit. For example, the receiving unit may also be referred to as a receiver, a receiving circuit, etc., and the transmitting unit may be referred to as a transmitter, a transmitting circuit, etc.

Referring to fig. 22, fig. 22 is a schematic structural diagram of another communication device according to an embodiment of the present application. As shown in fig. 22, the communication device may be a network device described in the embodiment of the present application, and is configured to implement the functions of the network device in fig. 10 to fig. 18. The network device 22 includes: baseband device 221, radio frequency device 222, antenna 223. In the uplink direction, the radio frequency device 222 receives information transmitted from the terminal device via the antenna 223, and transmits the information transmitted from the terminal device to the baseband device 221 for processing. In the downlink direction, the baseband device 221 processes information of the terminal device and sends the processed information to the radio frequency device 222, and the radio frequency device 222 processes information of the terminal device and sends the processed information to the terminal device through the antenna 223.

The baseband apparatus 221 includes one or more processing units 2211, a storage unit 2212, and an interface 2213. Wherein the processing unit 2211 is configured to support the network device to perform the functions of the network device in the above-described method embodiment. The storage unit 2212 is used for storing software programs and/or data. Interface 2213 is used to interact with the radio frequency device 222 and includes interface circuitry for input and output of 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 may be integrated together to form a chip. The memory unit 2212 may be located in the same chip as the processing unit 2211, i.e. an on-chip memory element. Or the memory unit 2212 and the processing unit 2211 may also be on a different chip, i.e. off-chip memory elements, than the processing unit 2211. The storage unit 2212 may be one memory, or may be a collective term of a plurality of memories or storage elements.

The network device may implement some or all of the steps in the method embodiments described above in the form of one or more processing unit schedulers. For example, to implement the corresponding functions of the network devices of fig. 10-18. The one or more processing units may support radio access technologies of the same standard, and may also support radio access standards of different standards.

The present application also provides a computer readable storage medium having instructions stored therein, which when run on a processor, implement the method flows of the method embodiments described above.

The present application also provides a computer program product, which when run on a processor, implements the method flows of the above method embodiments.

There is provided a communication system comprising a terminal device and a network device in the above-described method embodiments.

Those of ordinary skill in the art will appreciate that the elements and steps of the examples described in connection with the embodiments disclosed herein can be implemented as electronic hardware, or as a combination of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from 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 manners. For example, the apparatus embodiments described above are merely illustrative, and for example, the division of the units is merely a logical functional division, and units illustrated as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed over multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in the embodiments of the present application. The foregoing computer-readable storage media can be any available media that can be accessed by a computer. Taking this as an example but not limited to: the computer readable medium may include random access memory (random access memory, RAM), read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (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), a removable hard disk, or other optical disk storage, magnetic disk storage media, or other magnetic storage device, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer. In addition, by way of example and not limitation, many forms of RAM are available, such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous DRAM (SLDRAM), or direct memory bus RAM (DR RAM).

The foregoing is merely specific embodiments of the present application, but the scope of the embodiments of the present application is not limited thereto, and any person skilled in the art may easily think about changes or substitutions within the technical scope of the embodiments of the present application, and the changes or substitutions are intended to be covered by the scope of the embodiments of the present application. Therefore, the protection scope of the embodiments of the present application shall be subject to the protection scope of the claims.

Claims

1. A communication method, wherein the method is applied to a terminal device, and comprises:

transmitting first information, wherein the first information comprises residence information of the terminal equipment;

receiving feedback information of the first information;

and monitoring paging according to the feedback information.

2. The method according to claim 1, wherein the terminal device's camping information indicates that the terminal device camps on a first cell or a first frequency domain resource;

3. The method according to claim 2, wherein said listening for pages based on said feedback information comprises:

and monitoring paging in the first cell or the first frequency domain resource.

4. The method according to claim 1, wherein the terminal device's camping information indicates that the terminal device camps on a first cell or a first frequency domain resource;

5. The method of claim 4, wherein listening for pages based on the feedback information comprises:

6. The method according to claim 4 or 5, characterized in that the method further comprises:

and according to the feedback information, residing in the second cell or the second frequency domain resource.

7. The method according to any of claims 1-6, wherein the camping information comprises cell information, carrier information, or band information;

8. The method according to any of claims 1-7, wherein the first information is carried on message a in a first random access procedure; the feedback information is carried in a message B in the first random access process.

9. The method according to any one of claims 1 to 7, wherein,

the sending the first information includes:

the receiving feedback information of the first information includes:

10. The method according to claim 9, wherein the method further comprises:

11. The method according to claim 9 or 10, characterized in that the first random access resource comprises a random access channel occasion, RO, and/or a random access preamble.

12. The method according to claim 1, wherein the camping information indicates a priority of a camping cell of the terminal device or a priority of a camping frequency domain resource.

13. A communication method, wherein the method is applied to a terminal device, and comprises:

receiving third information, wherein the third information comprises resident information of the terminal equipment;

determining a third cell or a third frequency domain resource according to the third information, wherein the third cell is a cell where the terminal equipment resides, and the third frequency domain resource is a frequency domain resource where the terminal equipment resides;

and monitoring paging on the third cell or the third frequency domain resource.

14. The method of claim 13, wherein the camping information comprises cell information, carrier information, or band information;

15. The method according to claim 13, wherein the camping information indicates a priority of a camping cell of the terminal device or a priority of a camping frequency domain resource.

16. The method according to claim 15, wherein the camping cells of the terminal device indicated by the camping information comprise at least the third cell and a fourth cell, and wherein the third cell has a higher priority than the fourth cell; or alternatively, the process may be performed,

The resident frequency domain resources of the terminal equipment indicated by the resident information at least comprise 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.

17. The method according to claim 15, wherein the camping cells of the terminal device indicated by the camping information comprise at least the third cell and a fourth cell;

18. The method of claim 13, wherein the determining a third cell or a third frequency domain resource from the third information comprises:

19. The method according to claim 18, wherein the third information indicates that the camping cell of the terminal device comprises at least a third cell and a fourth cell, and wherein the priority relation comprises at least a priority of the third cell over a priority of the fourth cell; or alternatively, the process may be performed,

20. A communication method, wherein the method is applied to a terminal device, and comprises:

And monitoring paging in the third cell or the third frequency domain resource.

21. The method of claim 20, wherein the method further comprises:

22. The method of claim 20, wherein the method further comprises:

23. The method of claim 22, wherein the camping information comprises cell information, carrier information, or band information;

24. A method of communication, the method being applied to a network device, comprising:

receiving first information, wherein the first information comprises resident information of terminal equipment;

sending feedback information of the first information;

and sending paging according to the feedback information.

25. The method according to claim 24, wherein the terminal device's camping information indicates that the terminal device camps on a first cell or a first frequency domain resource;

26. The method of claim 25, wherein said sending a page based on said feedback information comprises:

and sending paging in the first cell or the first frequency domain resource.

27. The method according to claim 24, wherein the terminal device's camping information indicates that the terminal device camps on a first cell or a first frequency domain resource;

28. The method of claim 27, wherein said sending a page based on said feedback information comprises:

and sending paging in the second cell or the second frequency domain resource.

29. The method according to any of claims 24-28, wherein the camping information comprises cell information, carrier information, or band information;

30. The method according to any of claims 24-29, wherein the first information is carried on message a in a first random access procedure; the feedback information is carried in a message B in the first random access process.

31. The method of any one of claims 24-29, wherein,

the receiving the first information includes:

the sending the feedback information of the first information includes:

32. The method of claim 31, further comprising:

33. The method according to claim 31 or 32, wherein the first random access resource comprises a random access channel occasion, RO, and/or a random access preamble.

34. The method according to claim 24, wherein the camping information indicates a priority of a camping cell of the terminal device or a priority of a camping frequency domain resource.

35. A method of communication, the method being applied to a network device, comprising:

transmitting third information, wherein the third information comprises resident information of the terminal equipment;

and sending paging on the third cell or the third frequency domain resource.

36. The method of claim 35, wherein the camping information comprises cell information, carrier information, or band information;

37. The method of claim 35, wherein the camping information indicates a priority of a camping cell of the terminal device or a priority of a camping frequency domain resource.

38. The method according to claim 37, wherein the camping cells of the terminal device indicated by the camping information comprise at least the third cell and a fourth cell, and wherein the third cell has a higher priority than the fourth cell; or alternatively, the process may be performed,

39. The method according to claim 37, wherein the camping cells of the terminal device indicated by the camping information comprise at least the third cell and a fourth cell;

40. The method of claim 35, wherein the determining a third cell or third frequency domain resource from the third information comprises:

41. The method of claim 40, wherein the third information indicates that the resident cell of the terminal device includes at least a third cell and a fourth cell, and wherein the priority relationship includes at least a priority of the third cell over a priority of the fourth cell; or alternatively, the process may be performed,

42. A method of communication, the method being applied to a network device, comprising:

determining a third cell or a third frequency domain resource according to the priority relation, wherein the third cell is a cell where the terminal equipment resides, the third frequency domain resource is a frequency domain resource where the terminal equipment resides, or the third cell is a cell where the terminal equipment sends paging, and the third frequency domain resource is a frequency domain resource where the terminal equipment sends paging; the priority relation comprises the priority of a resident cell or the priority of resident frequency domain resources of the terminal equipment;

and sending paging in the third cell or the third frequency domain resource.

43. The method of claim 42, further comprising:

44. The method of claim 42, further comprising:

and determining a third cell or a third frequency domain resource according to the third information and the priority relation, wherein the third cell is a cell where the terminal equipment resides or a cell where paging is sent, and the third frequency domain resource is a frequency domain resource where the terminal equipment resides or a frequency domain resource where paging is sent.

45. The method of claim 44, wherein the camping information comprises cell information, carrier information, or band information;

46. A communications device comprising a processor and a transceiver for executing a computer program or instructions stored in at least one memory to cause the device to implement the method of any one of claims 1 to 12, or to implement the method of any one of claims 13 to 19, or to implement the method of any one of claims 20 to 23, or to implement the method of any one of claims 24 to 34, or to implement the method of any one of claims 35 to 41, or to implement the method of any one of claims 42 to 45.

47. A computer readable storage medium, having stored therein a computer program or instructions which, when executed by a computer, performs the method of any one of claims 1 to 12, or performs the method of any one of claims 13 to 19, or performs the method of any one of claims 20 to 23, or performs the method of any one of claims 24 to 34, or performs the method of any one of claims 35 to 41, or performs the method of any one of claims 42 to 45.

48. A computer program product comprising computer program code embodied therein for carrying out the method of any of claims 1 to 12 or for carrying out the method of any of claims 13 to 19 or for carrying out the method of any of claims 20 to 23 or for carrying out the method of any of claims 24 to 34 or for carrying out the method of any of claims 35 to 41 or for carrying out the method of any of claims 42 to 45 when said computer program code is run on a computer.