CN113453341B

CN113453341B - Method for sending random access message, method and equipment for determining user equipment type

Info

Publication number: CN113453341B
Application number: CN202010216923.6A
Authority: CN
Inventors: 李娇娇; 张向东; 余政; 常俊仁
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2020-03-24
Filing date: 2020-03-24
Publication date: 2023-10-24
Anticipated expiration: 2040-03-24
Also published as: CN113453341A

Abstract

The embodiment of the application discloses a method for sending a random access message, a method and equipment for determining a user equipment type, wherein the method for sending the random access message comprises the following steps: and receiving first configuration information from network equipment, determining first time-frequency resources according to the first configuration information, wherein the first time-frequency resources correspond to the type of user equipment, and transmitting random access information to the network equipment on the first time-frequency resources.

Description

Method for sending random access message, method and equipment for determining user equipment type

Technical Field

The present application relates to the field of communications technologies, and in particular, to a method for sending a random access message, a method for determining a user equipment type, and a device.

Background

With the increase of device types, devices different from conventional User Equipment (UE), such as computers, mobile phones, etc., have appeared, and compared with conventional UEs, such devices have low complexity, fewer transmit/receive antennas, low UE bandwidth, relaxed processing time (longer response time to a base station), and reduced processing power. These devices are collectively referred to as reduced capability UEs (Reduced Capability NR devices, REDCAP UEs).

After the random access is successful, the base station may schedule communication resources for the UE. In order to reasonably allocate resources, communication resources are scheduled for each UE. Therefore, the base station needs to know the UE type during the random access, i.e., whether the UE performing the random access is a legacy UE or a REDCAP UE. For example, the base station may configure the UE with the corresponding random access resource through the configuration information in the process of configuring the random access resource for the UE. The base station can determine the UE type according to random access channel occasions (Random Access Channel Occasion, RO) used when the UE transmits the random access message.

However, in some scenarios, it is difficult to configure random access resources corresponding to respective types for the legacy UE and the REDCAP UE by indicating the random access resources that the UE can use through the configuration information, which results in low flexibility in configuring the random access resources, and thus, it is difficult to accurately identify the UE type.

Disclosure of Invention

The application provides a method for sending a random access message, a method and equipment for determining a user equipment type. The flexibility of random access resource allocation is improved, and the success rate of UE type identification is improved.

In a first aspect, an embodiment of the present application provides a method for sending a random access message, where the method is applied to a user equipment, where the method may be performed by the user equipment, where the user equipment may also be a module or a chip in the user equipment, and where the user equipment may also be a chip or a system on a chip, and the method includes:

And receiving first configuration information from network equipment, determining first time-frequency resources according to the first configuration information, wherein the first time-frequency resources correspond to the type of user equipment, and transmitting random access information to the network equipment on the first time-frequency resources.

It can be seen that, in this embodiment, different random access channel occasions or different random access time-frequency resources are configured for the user equipment belonging to different user equipment types through the first configuration information, so that the base station can effectively identify different types of user equipment according to the resources of the user equipment sending the random access message, thereby improving the success rate of identifying the user equipment types.

In some possible embodiments, the first configuration information includes a second time-frequency resource and at least one offset value, where the second time-frequency resource is different from a device type corresponding to the first time-frequency resource; the determining a first time-frequency resource according to the first configuration information includes: and determining a first time-frequency resource corresponding to the user equipment type according to the second time-frequency resource and the at least one offset value.

The second time-frequency resource is a time-frequency resource or a random access resource configured by the network equipment for the traditional UE, and the first time-frequency resource is a time-frequency resource or a random access resource corresponding to the REDCAP UE.

It can be seen that in this embodiment, at least one offset value is configured for the user equipment by the first configuration information. Therefore, the user equipment offsets the second time-frequency resource through the at least one offset value to obtain the first time-frequency resource corresponding to the user equipment type, and no special time-frequency resource is required to be configured for the user equipment, so that the flexibility of configuring the time-frequency resource for the user equipment type is improved. Because the first time-frequency resource is obtained by offsetting the second time-frequency resource, the first time-frequency resource and the second time-frequency resource are not overlapped, so that the base station can effectively identify different types of user equipment through the resource of the user equipment sending the random access message, thereby improving the success rate of identifying the user equipment types.

In some possible implementations, the at least one offset value includes a first offset value, and the determining, according to the second time-frequency resource and the at least one offset value, a first time-frequency resource corresponding to the user equipment type includes: using the first offset value to offset part or all of the time domain resources in the second time-frequency resources to obtain first time-frequency resources corresponding to the user equipment type; or, using the first offset value to offset part or all of the frequency domain resources in the second time-frequency resource to obtain a first time-frequency resource corresponding to the user equipment type.

It can be seen that, in this embodiment, when the network device configures an offset value and offsets all time domain resources or frequency domain resources in the second time-frequency resources by using the first offset value, the number of random access channel occasions in the first time-frequency resources is the same as that of the second time-frequency resources, so that fairness of random access between the REDCAP UE and the conventional UE is ensured; under the condition that the first offset value is used for offsetting part of time domain resources or frequency domain resources in the second time-frequency resources, the number of the random access channel opportunities in the obtained first time-frequency resources is smaller than that of the traditional UE, so that the traditional UE has more random access opportunities under the condition that the number of the traditional UE is more, and the random access success rate of the traditional UE is improved. In addition, the user equipment can use the first offset value to offset one resource dimension (time domain resource or frequency domain resource) of the second time-frequency resource, so that the first time-frequency resource can be obtained, and the flexibility of configuring the first time-frequency resource is further improved.

In some possible implementations, the at least one offset value includes a plurality of offset values, and the determining, according to the second time-frequency resource and the at least one offset value, a first time-frequency resource corresponding to the user equipment type includes: determining a second offset value and a third offset value from the plurality of offset values; and using the second offset value to offset part or all of the time domain resources in the second time-frequency resources, and using the third offset value to offset part or all of the frequency domain resources in the second time-frequency resources to obtain first time-frequency resources corresponding to the user equipment type.

It can be seen that, in this embodiment, a plurality of offset values are configured for the UE, so that, in the case that the number of the REDCAP UEs performing random access is large, the offset values selected by different REDCAP UEs may be different, that is, the first time-frequency resources obtained by different REDCAP UEs are different. Therefore, different REDCAP UE can use different first time-frequency resources to carry out random access, and the random access success rate of the REDCAP UE is improved. Under the condition that all time-frequency resources of the traditional UE are offset, the number of random access channel occasions of each REDCAP UE for random access is the same as the number of random access channel occasions of the traditional UE, and fairness of random access between the traditional UE and the REDCAP UE is guaranteed. Under the condition that partial time-frequency resources of the traditional UE are offset, the number of random access channel occasions of each REDCAP UE for random access is smaller than that of the traditional UE, so that the random access success rate of the traditional UE can be improved on the premise that the success rate of the random access of the REDCAP UE is ensured under the condition that the number of the REDCAP UE is large.

In some possible implementations, the at least one offset value includes a plurality of offset values, and the determining, according to the second time-frequency resource and the at least one offset value, a first time-frequency resource corresponding to the user equipment type includes: determining a fourth offset value corresponding to the user equipment type according to the plurality of offset values; using the fourth offset value to offset part or all of the time domain resources in the second time-frequency resources to obtain first time-frequency resources corresponding to the user equipment type; or, using the fourth offset value to offset part or all of the frequency domain resources in the second time-frequency resource to obtain a first time-frequency resource corresponding to the user equipment type.

It can be seen that, in this embodiment, by designating a specific offset value for each sub-type of the REDCAP UE, when the UE obtains multiple offset values, the UE determines the offset value corresponding to the UE type, and further obtains the first time-frequency resource or the random access time-frequency resource corresponding to the UE type. Therefore, the base station can determine the subtype corresponding to the user equipment through the random access time-frequency resource used by the user equipment for sending the random access message, and the base station can effectively identify the subtype corresponding to the user equipment.

In some possible implementations, the at least one offset value includes a plurality of offset values, and the determining, according to the second time-frequency resource and the at least one offset value, a first time-frequency resource corresponding to the user equipment type includes: determining a fifth offset value and a sixth offset value corresponding to the user equipment type according to the plurality of offset values; and using the fifth offset value to offset part or all of the time domain resources in the second time-frequency resources, and using the sixth offset value to offset part or all of the frequency domain resources in the second time-frequency resources to obtain first time-frequency resources corresponding to the user equipment type.

It can be seen that, in this embodiment, by assigning a specific offset value to each sub-type of the REDCAP UE, when the UE obtains multiple offset values, the UE determines the offset value corresponding to the UE type, and further obtains the first time-frequency resource corresponding to the UE type or a different random access time-frequency resource. Therefore, the base station can determine the subtype corresponding to the user equipment through the random access time-frequency resource used by the user equipment for sending the random access message, so that the base station can effectively identify the subtype corresponding to the user equipment; and the REDCAP UE can offset the second time-frequency resource according to the offset value in the time domain and the offset value in the frequency domain, so that the flexibility of configuring the time-frequency resource is improved.

In some possible implementations, the first configuration information includes at least one of the following information: and the first time-frequency resource and the second time-frequency resource determine the first time-frequency resource corresponding to the user equipment type according to the first configuration information.

It can be seen that, in this embodiment, the first time-frequency resource is directly configured for the UE through the first configuration information, so as to improve flexibility of configuring the random access resource for the REDCAP UE.

In some possible implementations, the determining, according to the first configuration information, a first time-frequency resource corresponding to the user equipment type includes: if the first configuration information comprises a first time-frequency resource corresponding to the user equipment type, sending a random access message to the network equipment on the first time-frequency resource; and if the first configuration information does not comprise the first time-frequency resource corresponding to the user equipment type, determining the first time-frequency resource corresponding to the user equipment type according to the second time-frequency resource.

It can be seen that, in this embodiment, the first time-frequency resource can be directly configured for the UE through the first configuration information, so as to improve flexibility of configuring the random access resource for the REDCAP UE; if the first time-frequency resource is not configured in the first configuration information, the user equipment can use the second time-frequency resource to send the random access message, so that the success rate of the random access of the REDCAP UE is improved.

In a second aspect, an embodiment of the present application provides a method for determining a user equipment type, which is applied to a network device, where the method may be performed by the network device, and the network device may also be a module or a chip in the network device, and the network device may also be a chip or a system on a chip, where the method includes:

Transmitting first configuration information to user equipment, wherein the first configuration information is used for indicating first time-frequency resources, and the first time-frequency resources correspond to the type of the user equipment; receiving a random access message sent from the user equipment on a first time-frequency resource; and determining the type of the user equipment according to the first time-frequency resource.

It can be seen that in this embodiment, the network device configures, through the first configuration information, different random access channel occasions or different random access time-frequency resources for the user devices belonging to different user device types, so that the network device can effectively identify different types of user devices according to the resources of the user devices for sending the random access message, thereby improving the success rate of identifying the user device types.

In some possible implementations, the first configuration information includes a second time-frequency resource and at least one offset value, and the first configuration information is used to indicate that the first time-frequency resource is determined according to the second time-frequency resource and at least one offset value.

The second time-frequency resource is configured by the network equipment for the traditional UE, and the first time-frequency resource is corresponding to the REDCAP UE.

It can be seen that in this embodiment, the network device configures at least one offset value for the user device through the first configuration information. Therefore, the user equipment can offset the second time-frequency resource through the at least one offset value to obtain the first time-frequency resource corresponding to the user equipment type, so that the special time-frequency resource is not required to be configured for the user equipment, and the flexibility of configuring the random access resource is improved. Because the first time-frequency resource is obtained by offsetting the second time-frequency resource by the user equipment, the first time-frequency resource and the second time-frequency resource are not overlapped, and the base station can effectively identify different types of user equipment through the resource of the user equipment for transmitting the random access message, thereby improving the success rate of identifying the user equipment types.

In some possible embodiments, the at least one offset value includes a first offset value, and the first configuration information is used to instruct to offset some or all time domain resources in the second time-frequency resources by using the first offset value, so as to obtain a first time-frequency resource corresponding to the user equipment type; or, using the first offset value to offset part or all of the frequency domain resources in the second time-frequency resource to obtain a first time-frequency resource corresponding to the user equipment type.

It can be seen that, in this embodiment, the network device may configure an offset value for the UE and instruct the UE to use the first offset value to perform all time domain resources or all frequency domain resources in the second time-frequency resources, so that the number of random access channel occasions in the first time-frequency resources is the same as that of the second time-frequency resources, and fairness of random access between the REDCAP UE and the conventional UE is ensured; in addition, the user equipment can be instructed to use the first offset value to offset part of time domain resources or frequency domain resources in the second time-frequency resources, and the number of the obtained random access channel occasions in the first time-frequency resources is smaller than that of the traditional UE, so that the traditional UE has more random access opportunities under the condition that the number of the traditional UE is more, and the random access success rate of the traditional UE is improved. In addition, the user equipment is instructed to use the first offset value to offset one resource dimension (time domain resource or frequency domain resource) of the second time-frequency resource, so that the first time-frequency resource can be obtained, and the flexibility of configuring the first time-frequency resource is further improved.

In some possible implementations, the at least one offset value includes a plurality of offset values, and the first configuration information is used to indicate that a second offset value and a third offset value are determined according to the plurality of offset values; and using the second offset value to offset part or all of the time domain resources in the second time-frequency resources, and using the third offset value to offset part or all of the frequency domain resources in the second time-frequency resources to obtain first time-frequency resources corresponding to the user equipment type.

It can be seen that, in this embodiment, the network device configures a plurality of offset values for the UE, so that, in the case that the number of the REDCAP UEs performing random access is large, the offset values selected by different REDCAP UEs may be different, and further, the first time-frequency resources obtained by different REDCAP UEs are different. Therefore, different REDCAP UE can use different first time-frequency resources to carry out random access, and the random access success rate of the REDCAP UE is improved. Under the condition of indicating to offset all time-frequency resources of the traditional UE, the number of random access channel occasions of each REDCAP UE for random access is the same as that of the traditional UE, and fairness of random access between the traditional UE and the REDCAP UE is ensured. Under the condition that partial time-frequency resources of the traditional UE are indicated to be offset, the number of random access channel occasions of each REDCAP UE for random access is smaller than that of the traditional UE, so that the random access success rate of the traditional UE can be improved on the premise of ensuring the success rate of the random access of the REDCAP UE under the condition that the number of the REDCAP UE is large.

In some possible implementations, the at least one offset value includes a plurality of offset values, and the first configuration information is used to indicate that a fourth offset value corresponding to the user equipment type is determined according to the plurality of offset values; using the fourth offset value to offset part or all of the time domain resources in the second time-frequency resources to obtain first time-frequency resources corresponding to the user equipment type; or, using the fourth offset value to offset part or all of the frequency domain resources in the second time-frequency resource to obtain a first time-frequency resource corresponding to the user equipment type.

It can be seen that, in this embodiment, the network device designates a specific offset value for each sub-type of the REDCAP UE, so that the sub-type of the REDCAP UE selects the offset value corresponding to the sub-type, and further, the sub-type of the user device obtains the first time-frequency resource corresponding to the sub-type or different random access time-frequency resources. Therefore, the base station can effectively identify the subtype corresponding to the REDCAP UE through the random access time-frequency resource used by each REDCAP UE for transmitting the random access message, and the success rate of identifying the user equipment type is improved.

In some possible implementations, the at least one offset value includes a plurality of offset values, and the first configuration information is used to indicate that a fifth offset value and a sixth offset value corresponding to the user equipment type are determined according to the plurality of offset values; and using the fifth offset value to offset part or all of the time domain resources in the second time-frequency resources, and using the sixth offset value to offset part or all of the frequency domain resources in the second time-frequency resources to obtain first time-frequency resources corresponding to the user equipment type.

It can be seen that, in this embodiment, the network device designates a specific offset value for each sub-type of the REDCAP UE, so that the sub-type of the REDCAP UE selects the offset value corresponding to the sub-type, and further, the sub-type of the user device obtains the first time-frequency resource corresponding to the sub-type or different random access time-frequency resources. Therefore, the base station can effectively identify the subtype corresponding to the REDCAP UE through the random access time-frequency resource used by each REDCAP UE for transmitting the random access message, thereby improving the success rate of identifying the user equipment type; and the network equipment can respectively assign offset values on the time domain and the frequency domain for REDCAP UE of each sub type, thereby improving the flexibility of configuring time-frequency resources.

In some possible implementations, the first configuration information includes at least one of the following information: the first configuration information is used for indicating to determine a first time-frequency resource corresponding to the user equipment type according to the first configuration information.

It can be seen that in this embodiment, the network device directly configures the first time-frequency resource for the user equipment in the first configuration information, so as to improve flexibility of configuring the random access resource for the REDCAP UE.

In some possible embodiments, if the first configuration information includes a first time-frequency resource corresponding to the user equipment type, the first configuration information is used for indicating to determine the first time-frequency resource corresponding to the user equipment type according to the first configuration information; and if the first configuration information does not include the first time-frequency resource corresponding to the user equipment type, the first configuration information is used for determining the first time-frequency resource corresponding to the user equipment type according to the second time-frequency resource.

It can be seen that, in this embodiment, the network device directly configures the first time-frequency resource for the user equipment in the first configuration information, so as to improve flexibility of configuring the random access resource for the REDCAP UE; and under the condition that the first configuration information is not configured with the first time-frequency resource, the network equipment indicates that the REDCAP UE can use the second time-frequency resource to send the random access message, so that the success rate of the random access of the REDCAP UE is improved.

In a third aspect, an embodiment of the present application provides a method for reporting a user equipment type, where the method is applied to a user equipment, and the method may be performed by the user equipment, where the user equipment may also be a module or a chip in the user equipment, and the user equipment may also be a chip or a system on a chip, where the method includes:

and determining a random access message according to the type of the user equipment, and sending the random access message to the network equipment, wherein the random access message is used for indicating the type of the user equipment.

In some possible embodiments, scrambling information corresponding to the random access message is used to indicate the user equipment type.

In some possible embodiments, a reserved bit in the random access message is used to indicate the user equipment type.

In a fourth aspect, an embodiment of the present application provides a method for determining a user equipment type, applied to a network device, where the method may be performed by a user equipment, where the user equipment may also be a module or a chip in the user equipment, and the user equipment may also be a chip or a system on a chip, where the method includes:

receiving a random access message from a user equipment;

And determining the type of the user equipment according to the random access message.

In some possible embodiments, the determining the user equipment type according to the random access message includes: determining scrambling information of the random access message; and determining the type of the user equipment according to the scrambling information.

In some possible embodiments, the determining the user equipment type according to the random access message includes: and determining the type of the user equipment according to the reserved bit in the random access message.

In a fifth aspect, an embodiment of the present application provides a user equipment, including:

a transceiver unit, configured to receive first configuration information from a network device;

the processing unit is used for determining a first time-frequency resource according to the first configuration information, wherein the first time-frequency resource corresponds to the type of the user equipment;

the transceiver unit is further configured to send a random access message to the network device on the first time-frequency resource.

In some possible embodiments, the first configuration information includes a second time-frequency resource and at least one offset value, and the processing unit is specifically configured to: and determining a first time-frequency resource corresponding to the user equipment type according to the second time-frequency resource and the at least one offset value.

In some possible implementations, the at least one offset value includes a first offset value, and the processing unit is specifically configured to: using the first offset value to offset part or all of the time domain resources in the second time-frequency resources to obtain first time-frequency resources corresponding to the user equipment type; or, using the first offset value to offset part or all of the frequency domain resources in the second time-frequency resource to obtain a first time-frequency resource corresponding to the user equipment type.

In some possible implementations, the at least one offset value includes a plurality of offset values, and the processing unit is specifically configured to: determining a second offset value and a third offset value from the plurality of offset values; and using the second offset value to offset part or all of the time domain resources in the second time-frequency resources, and using the third offset value to offset part or all of the frequency domain resources in the second time-frequency resources to obtain first time-frequency resources corresponding to the user equipment type.

In some possible implementations, the at least one offset value includes a plurality of offset values, and the processing unit is specifically configured to: determining a fourth offset value corresponding to the user equipment type according to the plurality of offset values; using the fourth offset value to offset part or all of the time domain resources in the second time-frequency resources to obtain first time-frequency resources corresponding to the user equipment type; or, using the fourth offset value to offset part or all of the frequency domain resources in the second time-frequency resource to obtain a first time-frequency resource corresponding to the user equipment type.

In some possible implementations, the at least one offset value includes a plurality of offset values, and the processing unit is specifically configured to: determining a fifth offset value and a sixth offset value corresponding to the user equipment type according to the plurality of offset values; and using the fifth offset value to offset part or all of the time domain resources in the second time-frequency resources, and using the sixth offset value to offset part or all of the frequency domain resources in the second time-frequency resources to obtain first time-frequency resources corresponding to the user equipment type.

In some possible embodiments, the processing unit is specifically configured to, in determining, according to the first configuration information, a first time-frequency resource corresponding to the user equipment type: if the first configuration information comprises a first time-frequency resource corresponding to the user equipment type, sending a random access message to the network equipment on the first time-frequency resource; and if the first configuration information does not comprise the first time-frequency resource corresponding to the user equipment type, determining the first time-frequency resource corresponding to the user equipment type according to the second time-frequency resource.

In a sixth aspect, an embodiment of the present application provides a network device, including:

the receiving and transmitting unit is used for sending first configuration information to the user equipment, wherein the first configuration information is used for indicating first time-frequency resources, and the first time-frequency resources correspond to the type of the user equipment;

the receiving and transmitting unit is further configured to receive a random access message sent from the user equipment on a first time-frequency resource;

And the processing unit is used for determining the type of the user equipment according to the first time-frequency resource.

In some possible embodiments, if the first configuration information includes a first time-frequency resource corresponding to the user equipment type, sending a random access message to the network device on the first time-frequency resource; and if the first configuration information does not comprise the first time-frequency resource corresponding to the user equipment type, determining the first time-frequency resource corresponding to the user equipment type according to the second time-frequency resource.

In a seventh aspect, an embodiment of the present application provides a user equipment, including:

a processing unit, configured to determine a random access message according to a user equipment type;

and the receiving and transmitting unit is used for sending the random access message to the network equipment, wherein the random access message is used for indicating the type of the user equipment.

In an eighth aspect, an embodiment of the present application provides a network device, including:

a receiving and transmitting unit, configured to receive a random access message from a user equipment;

and the processing unit is used for determining the type of the user equipment according to the random access message.

In some possible embodiments, the processing unit is specifically configured to, in determining a user equipment type according to the random access message: determining scrambling information of the random access message; and determining the type of the user equipment according to the scrambling information.

In some possible embodiments, the processing unit is specifically configured to, in determining a user equipment type according to the random access message: and determining the type of the user equipment according to the reserved bit in the random access message.

In a ninth aspect, an embodiment of the present application provides a communications apparatus, including a processor, the processor being connected to a memory, the memory being configured to store a computer program, the processor being configured to execute the computer program stored in the memory, to cause the apparatus to perform a method according to any one of the embodiments of the first, second, third or fourth aspects.

In a tenth aspect, an embodiment of the present application provides a chip, including a processor and an interface;

the processor is configured to read instructions to perform the method according to any embodiment of the first, second, third or fourth aspects.

In an eleventh aspect, an embodiment of the present application provides a computer readable storage medium, where the computer readable storage medium stores a computer program, where the computer program, when executed, implements a method according to any of the embodiments of the first to fourth aspects.

In a twelfth aspect, an embodiment of the present application provides a communication system, where the communication system includes the user equipment related to the fifth aspect or the sixth aspect and the network equipment related to the seventh aspect or the eighth aspect.

Drawings

Fig. 1 is a schematic flow chart of a contention-based random access according to an embodiment of the present application;

fig. 2 is a schematic diagram of configuring time domain resources according to an embodiment of the present application;

FIG. 3 is a schematic diagram of msg2 provided by an embodiment of the present application;

fig. 4 is a schematic diagram of a mac protocol data unit including an msg3 message according to an embodiment of the present application;

Fig. 5 is a schematic diagram of configuring dedicated random access resources for a REDCAP UE according to an embodiment of the present application;

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

fig. 7 is a flow chart of a method for determining a user equipment type according to an embodiment of the present application;

fig. 8 is a schematic diagram of shifting all time domain resources in the second time-frequency resource when one offset value is configured according to an embodiment of the present application;

fig. 9 is a schematic diagram of shifting all frequency domain resources in the second time-frequency resource when one offset value is configured according to an embodiment of the present application;

fig. 10 is a schematic diagram of shifting a part of time domain resources in a second time-frequency resource when an offset value is configured according to an embodiment of the present application;

fig. 11 is a schematic diagram of shifting a portion of frequency domain resources in a second time-frequency resource when an offset value is configured according to an embodiment of the present application;

fig. 12 is a schematic diagram of shifting all time domain resources in the second time-frequency resource when configuring a plurality of shift values according to an embodiment of the present application;

fig. 13 is a schematic diagram of shifting all frequency domain resources in the second time-frequency resource when configuring a plurality of shift values according to an embodiment of the present application;

Fig. 14 is a schematic diagram of shifting a part of time domain resources in a second time-frequency resource when a plurality of offset values are configured according to an embodiment of the present application;

fig. 15 is a schematic diagram of shifting a portion of frequency domain resources in a second time-frequency resource when a plurality of offset values are configured according to an embodiment of the present application;

fig. 16 is a flowchart of another method for determining a user equipment type according to an embodiment of the present application;

fig. 17 is a schematic flow chart of a communication method according to an embodiment of the present application;

fig. 18 is a schematic diagram of indicating a user equipment type by a bitmap according to an embodiment of the present application;

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

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

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

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

fig. 23 is a schematic structural diagram of still another user equipment according to an embodiment of the present application;

fig. 24 is a schematic structural diagram of still another user equipment according to an embodiment of the present application;

fig. 25 is a schematic structural diagram of still another network device according to an embodiment of the present application;

Fig. 26 is a schematic structural diagram of still another network device according to an embodiment of the present application.

Detailed Description

The technical solution of the embodiment of the present application can be applied to a long term evolution (Long Term Evolution, LTE) architecture, and can also be applied to a universal mobile telecommunications system (Universal Mobile Telecommunications System, UMTS) terrestrial radio access network (UMTS Terrestrial Radio Access Network, UTRAN) architecture, or a global system for mobile communications (Global System for Mobile Communication, GSM), a radio access network (GSM EDGE Radio Access Network, GERAN) architecture of an enhanced data rate GSM evolution (Enhanced Data Rate for GSM Evolution, EDGE) system, a New air NR (NR) architecture, or even a 5G later architecture.

The User Equipment (UE) according to the embodiments of the present application may be a device that provides voice and/or data connectivity to a User, for example, may include a handheld device with a wireless connection function or a processing device connected to a wireless modem. The UE may communicate with a core network via a radio access network (radio access network, RAN), exchanging voice and/or data with the RAN. The UE may include a wireless user equipment, a mobile user equipment, a device-to-device (D2D) user equipment, a vehicle-to-device (V2X) user equipment, a machine-to-machine/machine-type communication (M2M/MTC) user equipment, an internet of things (internet of things, ioT) user equipment, a subscriber unit (subscriber unit), a subscriber station (subscriber station), a mobile station (mobile station), a remote station (remote station), an Access Point (AP), a remote terminal (access terminal), a user terminal (user agent), a user agent (user device), or a user equipment (user device), etc. For example, mobile telephones (or "cellular" telephones) computers with mobile user equipment, portable, pocket, hand-held, computer-built mobile devices, and the like may be included. Such as 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 also limited devices such as devices with lower power consumption, or devices with limited memory capabilities, or devices with limited computing capabilities, etc. Examples include bar codes, radio frequency identification (radio frequency identification, RFID), sensors, global positioning systems (global positioning system, GPS), laser scanners, and other information sensing devices.

By way of example, and not limitation, in embodiments of the application, the UE may also be a wearable device. The wearable device can also be called as a wearable intelligent device or an intelligent wearable device, and is a generic name for intelligently designing daily wear and developing wearable devices, such as glasses, gloves, watches, clothes, shoes, and the like, by applying wearable technology. The wearable device is a portable device that is worn directly on the body or integrated into the clothing or accessories of the user. The wearable device is not only a hardware device, but also can realize a powerful function through software support, data interaction and cloud interaction. The generalized wearable intelligent device includes full functionality, large size, and may not rely on the smart phone to implement complete or partial functionality, such as: smart watches or smart glasses, etc., and focus on only certain types of application functions, and need to be used in combination with other devices, such as smart phones, for example, various smart bracelets, smart helmets, smart jewelry, etc. for physical sign monitoring.

While the various UEs described above, if located on-board the vehicle (e.g., placed in the vehicle or installed in the vehicle), may be considered on-board user equipment, such as an on-board unit (OBU), the embodiments of the present application are not limited in this regard.

The embodiment of the application also relates to Access Network (AN) equipment. The AN device may refer to a device in AN access network that communicates over the air with wireless user equipment through one or more cells, such as a base station NodeB (e.g., AN access point) that may be used to inter-convert received air frames with Internet Protocol (IP) packets as a router between a UE and the rest of the access network, which may include AN IP network. For example, the NodeB may be an evolved base station (NodeB or eNB or e-NodeB, evolutional Node B) in a long term evolution (long term evolution, LTE) system or advanced, LTE-a, or may also include a new air interface network device, gNB, in a fifth generation mobile communication technology, the 5th generation,5G, NR, system. The AN device may also be AN access network device in a car-to-anything (Vehicle to Everything, V2X) technology, which is a Road Side Unit (RSU). The RSU may be a fixed infrastructure entity supporting V2X applications, which may exchange messages with other entities supporting V2X applications. In addition, the AN device may further include a Centralized Unit (CU) and a Distributed Unit (DU) in a cloud access network (cloud radio access network, cloudRAN) system, and at this time, the AN device coordinates attribute management of the air interface. The embodiment of the application does not limit the AN equipment.

In order to facilitate understanding of the present application, first, related technical knowledge related to the embodiments of the present application will be described herein.

The UE establishes connection with the base station through a Random Access (RA) process to acquire uplink synchronization. Wherein the random access comprises: contention-based random access (CBRA) and non-Contention-based random access (Contention-Free Random Access, CFRA).

As shown in fig. 1, the CBRA mainly includes the following steps:

101: the UE sends a random access preamble (Random Access Preamble RAP), i.e. message 1 (msg 1), to the base station over a physical random access channel (Physical Random Access Channel, PRACH) using a physical RO. Before msg1 is sent, the UE needs to select the physical RO from random access resources configured by the base station, where the physical RO includes time domain resources and frequency domain resources.

Specifically, the base station broadcasts a random access configuration, wherein the random access configuration comprises random access resources, and the base station configures the random access resources for the user equipment through the RACH-ConfigGeneric in the random access configuration. The UE receives the random access configuration and analyzes the RACH-ConfigGeneric to obtain the random access resource.

For example, as shown in fig. 2, the UE may determine the time domain resource according to the prach-configuration index, where the value of the prach-configuration index is (0, 1,2, …, 255). Namely, the UE acquires the time domain resource according to the value of the Rach-configuration index and the correspondence shown in table 1, wherein table 1 only shows part of the values of the prach-configuration index. The table 1 is: low band FR1 and symmetric spectrum/supplemental uplink, i.e.: table 6.3.3.2-3:Random access configurations for FR1 and unpaired spectrum) corresponding relationship between time domain resources and prach-configuration index.

Table 1:

the UE then determines the frequency domain resources from msg1-FDM to indicate the number of PRACH transmission occasions (ROs) in the frequency domain at a given time and msg1-FrequencyStart to indicate the offset of the lowest PRACH transmission occasion in the frequency domain relative to the physical resource block (Physical Resource Block, PRB) 0.

102, the base station, after receiving the RAP, sends a random access response (Random Access Response, RAR), message 2 (msg 2), to the UE. As shown in fig. 3, msg2 includes the following:

r is a reserved bit and is set to 0; a timing advance command field (Timing Advance Command) for indicating an index value TA for controlling a time adjustment to be used by a medium access control (Media Access Control, MAC) entity; an UPlink Grant (UL Grant) is used for indicating resources to be used by an UPlink, i.e. time-frequency resources that can be used by the transmission msg 3; a Temporary Cell radio network Temporary identity (TC-RNTI) for indicating a Temporary identity to be used when the MAC entity transmits msg3 during random access.

The UE sends a message 3 (msg 3) to the base station, msg3 carrying the UE contention resolution identity for contention resolution. Namely, after receiving the RAR message, the UE acquires the UL grant from the RAR message, obtains a time-frequency resource, and uses the time-frequency resource to transmit msg3 in the scheduled physical uplink shared channel (Physical Uplink Shared Channel, PUSCH). If the base station provides the TC-RNTI, the TC-RNTI is used for scrambling a cyclic redundancy code (Cyclic Redundancy Check, CRC) corresponding to the msg3, otherwise, a Cell radio network temporary identifier (Cell-Radio Network Temporary Identifier, C-RNTI) is used for scrambling.

As shown in fig. 4, the MAC subheader of the medium access control protocol data unit (Media Access Control Packet Data Unit, MAC PDU) containing the msg3 message includes the following:

two reserved bits R, logical channel identification (logical channel identifier, LCID).

With the increase in device types, devices different from conventional UEs (e.g., computers, mobile phones) are presented, which have a reduced complexity, a reduced number of transmit/receive antennas, a low UE bandwidth, a relaxed processing time (a longer response time to the base station), and a reduced processing power compared to conventional UEs. For convenience of description, such devices are collectively referred to as REDCAP UE.

Because of the above difference between REDCAP UE and traditional UE, the base station needs to know the UE type in the process of configuring the communication resource so as to perform targeted configuration for each UE, thereby reasonably utilizing the communication resource and improving the communication stability and transmission efficiency.

Currently, in order to identify the UE type, the following three schemes are set.

First kind: dedicated random access resources are configured for REDCAP UE in RACH-ConfigGeneric. And expanding the RACH-ConfigGeneric to obtain a newly added field, and configuring special random access resources, namely configuring special time domain resources, for REDCAP UE through the newly added field. For example, as shown in fig. 5, when prach-configuration index-redecap and msg1-frequency start-redecap are newly added in RACH-ConfigGeneric, dedicated random access resources are configured for the redecap UE by using prach-configuration index-redecap and msg1-frequency start-redecap. Therefore, after receiving the random access configuration, the legacy UE cannot identify the prach-configuration index-redecap and the msg 1-FrequencyStart-redecap, the legacy UE may use the random resources corresponding to the prach-configuration index and the msg1-FrequencyStart to perform random access, and the redeap UE may identify the prach-configuration index-redecap and the msg 1-FrequencyStart-redecap, to obtain the dedicated random access resources configured for the redeap UE. Therefore, different kinds of UEs can acquire random access resources corresponding to the respective kinds, so that different UEs can perform random access by using different physical ROs. Thus, the base station can determine the UE type through the physical RO used when the UE transmits msg 1.

The above manner of identifying the UE type needs to ensure that physical ROs selected for different types of UEs do not overlap, and thus different random access resources need to be configured for different types of UEs. However, in some cases, by configuring dedicated random access resources for the REDCAP UE through the newly added fields prach-configuration index-REDCAP and msg1-FrequencyStart-REDCAP, it is difficult to ensure that non-overlapping time domain resources are configured for the legacy UE and the REDCAP UE, resulting in low flexibility in configuring the random access resources.

For example, as shown in table 1, if the base station is configured for the legacy UE and PRACH configuration index is 252, in order to make the physical RO used by the REDCAP UE and the physical RO used by the legacy UE not overlap, and in order to ensure that the preamble format of all UEs (including the legacy UE and the REDCAP UE) is the same (i.e., C2), the PRACH configuration index-REDCAP configured for the REDCAP UE can only take a value of 242.

Second, one reserved bit in the radio resource control (Radio Resource Control, RRC) layer using msg3 indicates the UE type. For example, if the reserved bit is 0, the UE is a legacy UE; if the reserved bit is 1, the UE is a REDCAP UE. However, if new content needs to be indicated later, the reserved bit is not used due to occupation of the reserved bit, resulting in poor forward compatibility.

Thirdly, adding a media access control element (MAC CE) in the msg3, namely expanding the field of the msg3 to obtain the MAC CE. The MAC CE is used to indicate the UE type.

For example, if the MAC CE is 00000000, the UE is a legacy UE; if the MAC CE is 01010101, the UE is REDCAP UE. Because msg3 is expanded, the original length of the msg3 is changed, and after the msg3 is received by the base station, the msg3 needs to be demodulated and then the processes such as rate matching and the like are needed to be carried out again, so that the processing difficulty of the base station is increased.

Therefore, the existing mode for identifying the type of the UE is single, and the identification process is complex.

It should be noted that for the present application, the UE type is identified, i.e. whether the UE is a legacy UE, a REDCAP UE or a subtype in a REDCAP UE. The present application mainly describes how to identify REDCAP UE in detail, and the user equipments mentioned later are REDCAP UE without special description.

REDCAP UE refers to a device for industrial wireless sensing, video monitoring, and wearable that has low device complexity. The REDCAP UE may have the following features with respect to the legacy UE: the number of the receiving and transmitting antennas is reduced; UE bandwidth reduction; half-duplex frequency division duplex FDD; the UE processing time is relaxed; UE processing power decreases. In addition, REDCAP UEs may also be subdivided into multiple subtypes. For example, REDCAP UEs may be subdivided into industrial wireless sensors (Industrial Wireless Sensors, IWSN), video surveillance, wearable devices, etc., by application scenario classification. Of course, REDCAP UE may also be subdivided into multiple sub-types according to the criteria of bandwidth, modulation order, peak rate, etc. of REDCAP UE. The present application is not limited to the manner of dividing into subtypes. REDCAP UE may be further subdivided into various types according to capabilities and factors such as bandwidth of REDCAP UE, and illustratively REDCAP UE may be classified into the categories shown in Table 2, the classification in Table 2 being merely an example, and other classification is not excluded, which is not limiting in this regard.

TABLE 2

Referring to fig. 6, fig. 6 is a schematic diagram of a communication system according to an embodiment of the present application. The communication system 10 comprises a user equipment 100 and a network device 200.

In some possible embodiments, the network device 200 sends first configuration information to the user device 100, and the user device 100 determines a first time-frequency resource according to the first configuration information, where the first time-frequency resource corresponds to a user device type of the user device 100, and the user device 100 sends a random access message to the network device 200 on the first time-frequency resource; the network device 200 determines the user equipment type based on the first time-frequency resources used when the user equipment 100 transmits the random access message.

It can be seen that, in the embodiment of the present application, the network device configures the first time-frequency resource corresponding to the user equipment type to the user equipment, and then identifies the user equipment type through the first time-frequency resource used by the user equipment to send the random access message, thereby improving the success rate of identifying the user equipment type.

In some possible embodiments, the user equipment 100 determines the first information according to the user equipment type, and sends the first information to the network device 200, where the first information is part of a random access message, and the first information is used to indicate the user equipment type.

It can be seen that, in the embodiment of the present application, the network device can identify the user equipment type according to the first information, and no dedicated random access resource is required to be allocated to the user equipment 100, so that flexibility of configuring the random access resource is improved; the user equipment type can be identified through the first message, and the mode of identifying the user equipment type is increased.

Referring to fig. 7, fig. 7 is a flowchart of a method for determining a user equipment type according to an embodiment of the present application. The method comprises the following steps:

701, a method comprises the steps of (1); the network device sends the first configuration information to the user device.

The network device sends the first configuration information to the user device in a broadcast mode.

702: and the user equipment determines a first time-frequency resource according to the first configuration information, wherein the first time-frequency resource corresponds to the type of the user equipment.

The time-frequency resources are conceptually identical to random access resources configured by the network device for random access by the user device. Thus, the first time-frequency resource referred to in the present application may also be referred to as a first random access resource, and the second time-frequency resource may also be referred to as a second random access resource.

The first time-frequency resource comprises at least one physical RO comprising RO time-domain resources and RO frequency-domain resources.

In some possible embodiments, the first configuration information includes a second time-frequency resource and at least one offset value offset, the second time-frequency resource being a second random access resource configured by the network device for the legacy UE; the user equipment determines the first time-frequency resource according to the second time-frequency resource and at least one offset value offset.

For example, similar to the manner of configuring dedicated random access resources for REDCAP UE shown in FIG. 5, a field for indicating an offset value offset may be added in RACH-ConfigGeneric to indicate the at least one offset value offset. Therefore, the user equipment analyzes the RACH-ConfigGeneric in the first configuration information to obtain the second time-frequency resource and the at least one offset value, and determines the first time-frequency resource according to the second time-frequency resource and the at least one offset value offset.

The present application is described in detail with respect to the process of shifting the second time-frequency resource by using the at least one shift value, taking the subcarrier spacing of 15KHZ as an example. For sub-carriers spaced at 15KHZ each radio frame comprises a plurality of sub-frames, each sub-frame comprising a slot, each slot comprising 14 time domain symbols.

If the at least one offset value includes a first offset value, that is, an offset value, the ue uses the first offset value to offset part or all of the time-frequency resources of the second time-frequency resource, so as to obtain a first time-frequency resource. Namely, using the first offset value to offset all or part of RO time domain resources in the second time-frequency resources to obtain first time-frequency resources; or, using the first offset value to offset all or part of RO frequency domain resources in the second time-frequency resources to obtain first time-frequency resources; or, using the first offset value to offset all or part of RO time domain resources in the second time-frequency resources, and using the first offset value to offset all or part of RO frequency domain resources at the same time, so as to obtain the first time-frequency resources.

For example, as shown in fig. 8, the gray part represents a second time-frequency resource (time-domain resource) configured by the network device for the legacy UE, where the second time-frequency resource includes a plurality of subframes, each subframe includes 6 RO time-domain resources, each RO time-domain resource includes two time-domain symbols, and for example, the first RO time-domain resource includes time-domain symbols 0 and 1. The dark grey part of the figure indicates the first time-frequency resources for random access of the REDCAP UE obtained after the offset on the basis of the second time-frequency resources. Illustratively, the time domain resources of the RO resources obtained after the offset of the first RO time frequency resource include time domain symbols 12 and 13. In addition, fig. 8 shows only a process of shifting all RO time domain resources in one subframe in the second time frequency resource.

For example, in the case of shifting the time domain resources in the second time-frequency resource, as shown in fig. 8, the first shift value may be used to shift all RO time domain resources in the second time-frequency resource, so as to obtain RO time domain resources of the REDCAP UE. And then, taking RO time domain resource of the REDCAP UE and RO frequency domain resource in the second time frequency resource as the first time frequency resource.

Similarly to the offset process shown in fig. 8, in the case of offsetting the frequency domain resources in the second time-frequency resource, as shown in fig. 9, the first offset value may be used to offset all RO frequency domain resources in the second time-frequency resource, so as to obtain RO frequency domain resources of the REDCAP UE. And then, taking RO frequency domain resources of the REDCAP UE and RO time domain resources in second time-frequency resources as the first time-frequency resources.

Based on the offset manner shown in fig. 8 and 9, all the time-frequency resources in the second time-frequency resources are offset. Therefore, the number of the time-frequency resources which can be used by the REDCAP UE is the same as that of the traditional UE, so that the fairness of random access of the REDCAP UE and the traditional UE is ensured.

In addition, the first offset value can be used for offsetting part of RO time domain resources in the second time frequency resource to obtain RO time domain resources of REDCAP UE; and then, taking RO time domain resource of the REDCAP UE and RO frequency domain resource in the second time frequency resource as the first time frequency resource.

The partial RO time domain resource may be indicated by the network device, that is, the first configuration information may include indication information of the partial RO time domain resource, and the user device determines the partial RO time domain resource according to the indication information; in addition, the network device may indicate only the number of the partial RO time domain resources, and then the user device selects the partial RO time domain resources corresponding to the number from the second time frequency resources. In addition, the part of RO time domain resources mentioned later can be determined in the above manner, and will not be described in detail. The application does not limit the indication mode of the part of RO time domain resource.

As shown in fig. 10, the first RO time domain resource, the third RO time domain resource, and the sixth RO time domain resource in the second time-frequency resource are offset by using the first offset value, so as to obtain RO time domain resources of the REDCAP UE.

Similar to the offset process shown in fig. 10, as shown in fig. 11, a portion of RO frequency domain resources in the second time-frequency resources may be offset by using the first offset value offset to obtain RO frequency domain resources of the REDCAP UE. And then, taking RO frequency domain resources of the REDCAP UE and RO time domain resources in second time-frequency resources as the first time-frequency resources.

Also, the partial RO frequency domain resources may be directly indicated by the network device or may be determined by the user device according to the number of RO frequency domain resources indicated by the network device. In addition, the part of RO frequency domain resources mentioned later can be determined in the above manner, and will not be described in detail.

Based on the offset manner of fig. 10 and fig. 11, part of the time-frequency resources in the second time-frequency resources are offset, so that the time-frequency resources of the REDCAP UE are smaller than those of the traditional UE, and therefore under the condition that the number of the traditional UE is more and the number of the REDCAP UE is smaller, the traditional UE has more time-frequency resources, so that the traditional UE has more random access opportunities, and the random access success rate of the traditional UE is improved.

It can be understood that, when the first offset value is used and the time domain resource and the frequency domain resource in the second time-frequency resource are offset, where the time domain resource and the frequency domain resource include a partial offset and a full offset, the RO time domain resource and the RO frequency domain resource obtained by the offset can be used as the first time-frequency resource.

If the at least one offset value includes a plurality of offset values, namely, offset values are respectively configured for the time domain and the frequency domain; the user equipment determines a second offset value and a third offset value from the plurality of offset values; and using the second offset value to offset part or all of RO time domain resources in the second time-frequency resources, and using the third offset value to offset part or all of RO frequency domain resources in the second time-frequency resources to obtain first time-frequency resources corresponding to the user equipment type.

For example, if the plurality of offset values corresponding to the time domain are a plurality of offset values, the ue may select the second offset value from the plurality of offset values, where the selection manner may be a random selection or other selection manners, which is not limited in the present application. Similarly, if the plurality of offset values corresponding to the frequency domain are also plural, the ue may select the third offset value from the plurality of offset values.

It may be appreciated that if the plurality of offset values includes two offset values, the ue only needs to determine the offset values corresponding to the time domain and the frequency domain in the two offset values, and does not need to select the second offset value and the third offset value.

For example, as shown in fig. 12, the ue uses the second offset value offset2 in the time domain to offset all RO time domain resources in the second time-frequency resources to obtain RO time domain resources of the ue; and the other REDCAP UE uses the offset selected by the other REDCAP UE to offset all RO time domain resources of the second time frequency resource, so as to obtain the RO time domain resources of the other REDCAP UE.

Similar to the offset process shown in fig. 12, as shown in fig. 13, the ue uses the third offset3 on the frequency domain to offset all RO frequency domain resources in the second time-frequency resource, so as to obtain RO frequency domain resources of the ue; and the other REDCAP UE uses the offset selected by the other REDCAP UE to offset all RO frequency domain resources in the second time-frequency resources to obtain RO frequency domain resources of the other REDCAP UE.

Based on the offset manner shown in fig. 12 and 13, a plurality of offset values are configured for the user equipment. Therefore, when the number of the REDCAP UEs performing random access is large, the offset values selected by different REDCAP UEs may be different, so that the time-frequency resources obtained by different REDCAP UEs are different. Therefore, different REDCAP UEs can use different time-frequency resources to perform random access, and the random access success rate of the REDCAP UEs is improved. And the time-frequency resources of the traditional UE are all offset, so that the number of the time-frequency resources of each REDCAP UE for random access is the same as that of the traditional UE, and the fairness of random access between the traditional UE and the REDCAP UE is ensured.

In addition, as shown in fig. 14, the ue may further use a second offset value offset2 in the time domain to offset a portion of RO time domain resources in the second time-frequency resource, so as to obtain RO time domain resources of the ue; and the other REDCAP UE uses the offset selected by the other REDCAP UE to offset part of RO time domain resources of the second time frequency resource, so as to obtain RO time domain resources of the other REDCAP UE.

Similar to the offset process shown in fig. 14, as shown in fig. 15, the ue uses the third offset value offset3 in the frequency domain to offset a part of RO frequency domain resources in the second time-frequency resource, so as to obtain RO frequency domain resources of the ue; and the other REDCAP UE uses the offset selected by the other REDCAP UE to offset part of RO frequency domain resources in the second time-frequency resources to obtain part of RO frequency domain resources of the other REDCAP UE.

Based on the offset manner shown in fig. 14 and 15, a plurality of offset values are configured for the user equipment. Therefore, when the number of the REDCAP UEs performing random access is large, the offset values selected by different REDCAP UEs may be different, so that the time-frequency resources obtained by different REDCAP UEs are different. Therefore, different REDCAP UEs can use different time-frequency resources to perform random access, and the random access success rate of the REDCAP UEs is improved. And partial time-frequency resources of the traditional UE are offset, so that the number of time-frequency resources of each REDCAP UE for random access is smaller than that of the traditional UE, and the random access success rate of the traditional UE is improved under the condition that the number of REDCAP UEs is large.

Further, in the case where the network device configures a plurality of offset values, the network device may designate a particular subtype of REDCAP UE for each offset value. After obtaining the plurality of offset values, the user equipment determines a fourth offset value corresponding to the user equipment type, and uses the fourth offset value to offset part or all of the time domain resources in the second time-frequency resources to obtain first time-frequency resources corresponding to the user equipment type; or using the fourth offset value to offset part or all of the frequency domain resources in the second time domain resources to obtain first time-frequency resources corresponding to the user equipment type; or using the fourth offset value to offset part or all of the time domain resources in the second time-frequency resources, and simultaneously offset part or all of the frequency domain resources in the second time-domain resources to obtain the first time-frequency resources corresponding to the user equipment type. I.e. using the fourth offset value to offset part or all of the time domain resources in the second time-frequency resource and/or to offset part or all of the frequency domain resources in the second time-frequency resource.

The offset of the fourth offset value to some or all of the time domain resources in the second time-frequency resource and/or the offset of the fourth offset value to some or all of the frequency domain resources in the second time-frequency resource are similar to the offset manner shown in fig. 12-15, and will not be repeated.

Because the time-frequency resources used by the different subtypes are different, the network device can accurately identify the subtype corresponding to the user device which performs random access.

The network device may also assign an offset value to each sub-type in the time and frequency domains, respectively. Accordingly, the user equipment determines a fifth offset value and a sixth offset corresponding to the user equipment type from the plurality of offset values; and then, using the fifth offset value to offset part or all of the time domain resources in the second time-frequency resources, and using the sixth offset value to offset part or all of the time domain resources in the second time-frequency resources, so as to obtain the first time-frequency resources corresponding to the user equipment type.

The offset process for the time domain and the frequency domain can be referred to the offset manner shown in fig. 12-15, and will not be described again.

In addition, in the process of offsetting the RO time domain resource and the RO frequency domain resource, the same offset value may be used to offset the RO time domain resource and the RO frequency domain resource; the RO and RO frequency domain resources may also be offset using different offset values. The application is not limited in this regard.

The offset of the RO time domain resource in the second time-frequency resource may be offset by using any one of the offset schemes of fig. 8, 10, 12 and 14, and the offset of the RO frequency domain resource in the second time-frequency resource may be offset by using any one of the offset schemes of fig. 9, 11, 13 and 15. That is, if the time domain resource and the frequency domain resource are offset at the same time, the offset of the RO time domain resource and the offset of the RO frequency domain resource in the second time-frequency resource may be offset in the same or different offset manners. For example, the offset for the RO time domain resource is offset using a first offset value, and the offset for the RO frequency domain resource is offset using a third offset value selected by the user equipment.

After the user equipment performs offset to obtain RO time domain resources and RO frequency domain resources, combining the RO time domain resources and the RO frequency domain resources to obtain first time-frequency resources corresponding to the user equipment type.

In addition, the process of shifting the second time-frequency resource is to shift the physical RO in the second time-frequency resource as granularity. In practical application, the offset can be performed with the subframe as granularity, that is, the subframe containing the physical RO is integrally offset by using an offset value; the overall offset may even be performed at the granularity of the radio frame, i.e. the radio frame containing the physical RO is subjected to the overall offset using the offset value. The application does not limit the granularity of the offset.

In some possible implementations, the first configuration information includes at least one of: a first time-frequency resource and a second time-frequency resource. The second time-frequency resource corresponds to legacy UE and the first time-frequency resource corresponds to REDCAP UE. The user equipment may determine a first time-frequency resource corresponding to the user equipment according to the first message.

Specifically, if the first configuration information includes the first time-frequency resource, as shown in fig. 5, that is, a dedicated random access resource is configured for the REDCAP UE in the RACH-configgenerics, the UE sends a random access message on the first time-frequency resource; if the first configuration information does not include the first time-frequency resource, the user equipment sends a random access message on the second time-frequency resource, namely, the second time-frequency resource is used as a usable random access resource. Compared with the existing method for configuring the special random access resource for the REDCAP UE, if the network equipment is not configured with the special random access resource, the REDCAP UE still has the random access resource to be used, and the success rate of random access is further improved.

703: the user equipment transmits a random access message to the network equipment on the first time-frequency resource.

704: the network device determines the user equipment type according to the first time-frequency resource.

The network equipment identifies a first time-frequency resource used when the user equipment sends the random access message, and determines that the user equipment is REDCAP UE according to the type of the user equipment corresponding to the first time-frequency resource.

It should be noted that, the legacy UE sends the random access message on the second time-frequency resource, and the network device identifies the type of the legacy UE according to the second time-frequency resource.

Referring to fig. 16, fig. 16 is a flowchart illustrating another method for determining a ue type according to an embodiment of the present application.

The method comprises the following steps:

1601: the user equipment determines a random access message according to the user equipment type.

Wherein the random access message is a random access message 3 (msg 3). The user equipment acquires an uplink resource, namely an UL Grant, from msg2, and uses the uplink resource to send the random access message to the network equipment.

1602: the user equipment sends the random access message to the network equipment.

1603: and the network equipment determines the type of the user equipment according to the random access message.

Optionally, in the case of scrambling the random access message, the network device first descrambles the random access message to obtain scrambling information for scrambling the random access message; and obtaining the user equipment type according to the mapping relation between the scrambling information and the user equipment type and the scrambling information.

Specifically, the network device acquires scrambling information of CRC for msg3, and determines the user equipment type according to the scrambling information.

Wherein the scrambling information may be a scrambling sequence.

For example, the scrambling sequence used when legacy UE sends msg3 is TC-RNTI (0000 …), and the scrambling sequence used when the REDCAP UE sends msg3 is TC-RNTI (0101 …), where, denotes exclusive or processing. If the network device determines that the scrambling sequence for msg3 is TC-RNTI (0101 … 01), it determines that the user equipment transmitting the msg3 is REDCAP UE.

Further, in the case of subdividing the REDCAP UE into sub-types, scrambling information corresponding to each sub-type may be set. For example, the scrambling sequence used when the legacy UE transmits msg3 is TC-RNTI (0000 …), the scrambling sequence used when the wearable device transmits msg3 is TC-RNTI (0101 …), the scrambling scheme used when the video monitoring device transmits msg3 is TC-RNTI (1111 … 11), and so on. Thus, the network device may determine the user equipment type (including the subtype) based on the scrambling pattern for msg 3.

In one possible implementation, the user equipment indicates the user equipment type by means of a reserved bit in the first information. Thus, the network device may determine the user equipment type from the reserved bits in the first information.

Specifically, the network device indicates the type of the user device according to reserved bits in the subheader of the MAC PDU containing msg 3. I.e. the user equipment type is determined from one or two bits as shown in fig. 4.

In the case that a reserved bit R is used to indicate the UE type, for example, if the network device recognizes that the reserved bit R is 0, it is determined that the UE is a legacy UE, and if the reserved bit R is 1, it is determined that the UE is a REDCAP UE. In the case that two reserved bits R are used to indicate the UE type, if the network device recognizes that the two reserved bits are 00, it is determined that the UE is a legacy UE, and if the two reserved bits are 11, it is determined that the UE is a REDCAP UE.

Further, if REDCAP UE is subdivided into sub-types, then 10 may be used to indicate a wearable device, 11 indicates a video surveillance device, and so on. The application is not limited to the indication mode.

The above-described method for configuring random access resources to the REDCAP UE is determined by a higher layer. That is, the network device may configure the random access resource for the ue in the above manner of configuring the random access resource, or may configure the random access resource for the ue in the manner of configuring the random access resource shown in fig. 2.

Referring to fig. 17, fig. 17 is a flow chart of a communication method according to an embodiment of the present application, where the method includes the following steps:

1701: the network device sends second configuration information to the user device, wherein the second configuration information comprises time-frequency resources, and the second configuration information is used for indicating the type of the user device which is allowed to use the time-frequency resources.

The time-frequency resource comprises the first time-frequency resource and/or the second time-frequency resource.

Optionally, the second configuration information further includes indication information, where the indication information is used to indicate a type of user equipment that is allowed to use the time-frequency resource. For example, a field corresponding to the indication information may be added in RACH-ConfigGeneric. Specifically, one or more bits may be added in RACH-ConfigGeneric, which are used to indicate the type of user equipment that is allowed to use the time-frequency resource.

For example, in the case of using one bit, if the bit is 0, it indicates that the REDCAP UE cannot use the time-frequency resource, and if the bit is 1, it indicates that the REDCAP UE can use the time-frequency resource. If it is desired to specify the user equipment type to each subtype, two or more bits may be used for indication. For example, a legacy UE is indicated with 00, a video monitoring device with 01, a wearable device with 10, and a wireless industrial sensor with 11.

In addition, a field corresponding to the indication information is added in the RACH-ConfigGeneric, and the type of the user equipment permitted to use the time-frequency resource can be indicated by a bitmap.

As shown in fig. 18, bits corresponding to various user equipments are set in the bitmap, and whether the user equipment is allowed to use the time-frequency resource is determined according to the bit values of the various user equipments. For example, when a certain bit takes a value of 1, it is determined that the user equipment corresponding to the bit is allowed to use the time-frequency resource. As shown in fig. 18, if the bit values of the wearable device and the industrial wireless sensor are 1, the network device indicates that the wearable device and the industrial wireless sensor are allowed to use the time-frequency resources.

1702: and the user equipment determines the time-frequency resource according to the second configuration information, and sends a random access message to the network equipment on the time-frequency resource under the condition that the user equipment is allowed to use the time-frequency resource.

And the user equipment obtains the type of the user equipment which allows the time-frequency resource to be used according to the indication information, and if the type of the user equipment is consistent with the type of the user equipment which allows the time-frequency resource to be used, the user equipment sends a random access message on the time-frequency resource.

In addition, since the network device adds the indication information to the time-frequency resource, namely, the type of the user equipment using the time-frequency resource is limited; if the network device can receive the random access message sent by the user device on the time-frequency resource, determining that the user device type is the type allowed by the network device, namely identifying the user device type.

It can be seen that, in the embodiment of the present application, the network device comprehensively considers the current network condition, and uses the second configuration information to indicate which type of UE can use the configured time-frequency resource. For example, if the number of accesses of a certain UE is excessive, the second configuration information indicates that the UE of the certain type is not allowed to access the network using the time-frequency resource, so as to avoid access congestion and improve load balancing of the network.

Referring to fig. 19, fig. 19 is a schematic structural diagram of a ue according to an embodiment of the present application. The user equipment 1900 includes a processing unit 1901 and a transceiver unit 1902; wherein:

a transceiver unit 1902, configured to receive first configuration information from a network device;

a processing unit 1901, configured to determine a first time-frequency resource according to the first configuration information, where the first time-frequency resource corresponds to a user equipment type;

The transceiver 1902 is further configured to send a random access message to the network device on the first time-frequency resource.

In some possible implementations, the first configuration information includes a second time-frequency resource and at least one offset value,

in determining the first time-frequency resource according to the first configuration information, the processing unit 1901 is specifically configured to:

and determining a first time-frequency resource corresponding to the user equipment type according to the second time-frequency resource and the at least one offset value.

In some possible implementations, the at least one offset value includes a first offset value, and the processing unit 1901 is specifically configured to:

using the first offset value to offset part or all of the time domain resources in the second time-frequency resources to obtain first time-frequency resources corresponding to the user equipment type;

or, using the first offset value to offset part or all of the frequency domain resources in the second time-frequency resource to obtain a first time-frequency resource corresponding to the user equipment type.

In some possible implementations, the at least one offset value includes a plurality of offset values, and the processing unit 1901 is specifically configured to:

determining a second offset value and a third offset value from the plurality of offset values;

and using the second offset value to offset part or all of the time domain resources in the second time-frequency resources, and using the third offset value to offset part or all of the frequency domain resources in the second time-frequency resources to obtain first time-frequency resources corresponding to the user equipment type.

determining a fourth offset value corresponding to the user equipment type according to the plurality of offset values;

using the fourth offset value to offset part or all of the time domain resources in the second time-frequency resources to obtain first time-frequency resources corresponding to the user equipment type;

Or, using the fourth offset value to offset part or all of the frequency domain resources in the second time-frequency resource to obtain a first time-frequency resource corresponding to the user equipment type.

determining a fifth offset value and a sixth offset value corresponding to the user equipment type according to the plurality of offset values;

and using the fifth offset value to offset part or all of the time domain resources in the second time-frequency resources, and using the sixth offset value to offset part or all of the frequency domain resources in the second time-frequency resources to obtain first time-frequency resources corresponding to the user equipment type.

In some possible embodiments, the processing unit 1901 is specifically configured to, in determining, according to the first configuration information, a first time-frequency resource corresponding to the user equipment type:

if the first configuration information comprises a first time-frequency resource corresponding to the user equipment type, sending a random access message to the network equipment on the first time-frequency resource;

and if the first configuration information does not comprise the first time-frequency resource corresponding to the user equipment type, determining the first time-frequency resource corresponding to the user equipment type according to the second time-frequency resource.

Referring to fig. 20, fig. 20 is a schematic structural diagram of another ue according to an embodiment of the present application. The user device 2000 comprises a memory 2001, a processor 2002 and a transceiver 2003. Which are connected by a bus 2004. Memory 2001 is used to store related instructions and data and may be used to transfer stored data to processor 2002.

The processor 2002 is configured to read the relevant instructions in the memory 2001 to perform the following operations:

the control transceiver 2003 receives first configuration information from the network device;

determining a first time-frequency resource according to the first configuration information, wherein the first time-frequency resource corresponds to the type of the user equipment;

The control transceiver 2003 transmits a random access message to the network device on the first time-frequency resource.

Specifically, the processor 2002 may be the processing unit 1901 of the user equipment 1900 of the embodiment shown in fig. 19, and the transceiver 2003 may be the transceiver unit 1902 of the user equipment 1900 of the embodiment shown in fig. 19.

Referring to fig. 21, fig. 21 is a schematic structural diagram of a network device according to an embodiment of the present application. The network device 2100 includes a processing unit 2101 and a transceiving unit 2102; wherein:

a transceiver unit 2102, configured to send first configuration information to a user equipment, where the first configuration information is used to indicate a first time-frequency resource, and the first time-frequency resource corresponds to a user equipment type;

a transceiver 2102, configured to receive a random access message sent from the ue on a first time-frequency resource;

a processing unit 2101, configured to determine the user equipment type according to the first time-frequency resource.

In some possible implementations, the at least one offset value includes a plurality of offset values, and the first configuration information is used to indicate that a fourth offset value corresponding to the user equipment type is determined according to the plurality of offset values;

In some possible implementations, the at least one offset value includes a plurality of offset values, and the first configuration information is used to indicate that a fifth offset value and a sixth offset value corresponding to the user equipment type are determined according to the plurality of offset values;

In some possible embodiments, if the first configuration information includes a first time-frequency resource corresponding to the user equipment type, sending a random access message to the network device on the first time-frequency resource;

Referring to fig. 22, fig. 22 is a schematic structural diagram of another ue according to an embodiment of the present application. User device 2200 includes a memory 2201, a processor 2202, and a transceiver 2203. Which are connected by a bus 2204. Memory 22101 is used for storing related instructions and data and may be used for transferring stored data to processor 2202.

The processor 2202 is configured to read the relevant instructions in the memory 2201 by:

the control transceiver 2203 sends first configuration information to the user equipment, wherein the first configuration information is used for indicating first time-frequency resources, and the first time-frequency resources correspond to the type of the user equipment;

control transceiver 2203 to receive a random access message from the user equipment transmitted on a first time-frequency resource;

And determining the type of the user equipment according to the first time-frequency resource.

Specifically, the processor 2202 may be the processing unit 2001 of the user device 2100 in the embodiment shown in fig. 21, and the transceiver 2203 may be the transceiver unit 2102 of the user device 2100 in the embodiment shown in fig. 21.

Referring to fig. 23, fig. 23 is a schematic structural diagram of still another user equipment according to an embodiment of the present application. The user equipment 2300 includes: a processing unit 2301 and a transceiving unit 2302, wherein:

a processing unit 2301, configured to determine a random access message according to a user equipment type;

a transceiver unit 2302, configured to send the random access message to a network device, where the random access message is used to indicate the user equipment type.

Referring to fig. 24, fig. 24 is a schematic structural diagram of still another ue according to an embodiment of the present application. User device 2400 includes memory 2401, processor 2402, and transceiver 2403. Which are connected by a bus 2404. The memory 2401 is used for storing related instructions and data and can be used for transferring stored data to the processor 2402.

Processor 2402 is configured to read the relevant instructions in memory 2401 to perform the following operations:

determining a random access message according to the type of the user equipment;

the control transceiver 2403 transmits the random access message to a network device, the random access message indicating the user equipment type.

Specifically, the processor 2402 may be the processing unit 2301 of the user equipment 2300 of the embodiment shown in fig. 23, and the transceiver 2403 may be the transceiver unit 2302 of the user equipment 2300 of the embodiment shown in fig. 23.

Referring to fig. 25, fig. 25 is a schematic structural diagram of still another network device according to an embodiment of the present application. The network device 2500 includes: a processing unit 2501 and a transmitting and receiving unit 2502, wherein:

a transceiver 2502 for receiving a random access message from a user equipment;

a processing unit 2501, configured to determine a user equipment type according to the random access message.

In some possible embodiments, the processing unit 2501 is specifically configured to, in determining a user equipment type according to the random access message:

determining scrambling information of the random access message;

and determining the type of the user equipment according to the scrambling information.

And determining the type of the user equipment according to the reserved bit in the random access message.

Referring to fig. 26, fig. 26 is a schematic structural diagram of still another user equipment according to an embodiment of the present application. User device 2600 includes a memory 2601, a processor 2602, and a transceiver 2603. Which are connected by a bus 2604. The memory 2601 is used for storing related instructions and data, and can be used for transferring stored data to the processor 2602.

The processor 2602 is configured to read the relevant instructions in the memory 2601 by:

the control transceiver 2603 receives a random access message from the user equipment;

Specifically, the processor 2602 may be the processing unit 2501 of the user equipment 2500 in the embodiment shown in fig. 25, and the transceiver 2603 may be the transceiver unit 2502 of the user equipment 2500 in the embodiment shown in fig. 25.

In some possible embodiments, when the user equipment is a terminal device or a user equipment, when the network equipment is a network equipment, the transceiver 1902, the transceiver 2102, the transceiver 2302, the transceiver 2502 may be a transmitting unit or a transmitter when transmitting information, the transceiver 1902, the transceiver 2102, the transceiver 2302, the transceiver 2502 may be a receiving unit or a receiver when receiving information, the transceiver may be a transceiver, the transmitter or the receiver may be a radio frequency circuit, and when the user equipment or the network equipment includes a storage unit, the storage unit is configured to store computer instructions, the processor is communicatively connected to the memory, and the processor executes the computer instructions stored in the memory, so that the user equipment or the network equipment performs the method related to the embodiment of fig. 7. The processor may be a general purpose Central Processing Unit (CPU), microprocessor, application specific integrated circuit (Application Specific Intergrated Circuit, ASIC).

In some possible embodiments, when the user device or the network device is a chip, the transceiver 1902, the transceiver 2102, the transceiver 2302, the transceiver 2502 may be input and/or output interfaces, pins or circuits, etc. The processing unit may execute the computer-executable instructions stored in the storage unit to cause the user equipment or a chip within the network device to perform the method according to the embodiment of fig. 7. Alternatively, the storage unit is a storage unit in the chip, such as a register, a cache, or the like, and the storage unit may also be a storage unit in the terminal located outside the chip, such as a Read Only Memory (ROM) or other type of static storage device that may store static information and instructions, a random access Memory (Random Access Memory, RAM), or the like.

The embodiment of the application also provides a computer readable storage medium, on which a computer program is stored, which when executed by a processor, can implement a procedure related to a user equipment in the method for sending a random access message provided in the above method embodiment.

The embodiment of the application also provides a computer readable storage medium, on which a computer program is stored, which when executed by a processor, can implement the flow of the user equipment type determining method and the network equipment related to the user equipment type determining method provided by the above method embodiment.

Embodiments of the present application also provide a computer program product which, when run on a computer or processor, causes the computer or processor to perform one or more steps of a method of transmitting any of the random access messages described above. The respective constituent modules of the above-mentioned apparatus may be stored in the computer-readable storage medium if implemented in the form of software functional units and sold or used as independent products.

Embodiments of the present application also provide a computer program product which, when run on a computer or processor, causes the computer or processor to perform one or more steps of any one of the user equipment type determination methods described above. The respective constituent modules of the above-mentioned apparatus may be stored in the computer-readable storage medium if implemented in the form of software functional units and sold or used as independent products.

It should be appreciated that the processors referred to in embodiments of the present application may be central processing units (Central Processing Unit, CPU), but may also be other general purpose processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC), off-the-shelf programmable gate arrays (Field Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

It should also be understood that the memory referred to in embodiments of the present application may be volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable EPROM (EEPROM), or a flash Memory. The volatile memory may be random access memory (Random Access Memory, RAM) which acts as an external cache. 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 (Double Data Rate SDRAM), enhanced SDRAM (ESDRAM), synchronous DRAM (SLDRAM), and Direct RAM (DR RAM).

Note that when the processor is a general-purpose processor, DSP, ASIC, FPGA or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, the memory (storage module) is integrated into the processor.

It should be noted that the memory described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

It should also be understood that the first, second, third, fourth and various numerical numbers referred to herein are merely descriptive convenience and are not intended to limit the scope of the application.

It should be understood that the term "and/or" is merely an association relationship describing the associated 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. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

It should be understood that, in various embodiments of the present application, the sequence numbers of the foregoing processes do not mean the order of execution, and the order of execution of the processes should be determined by the functions and internal logic thereof, and should not constitute any limitation on the implementation process of the embodiments of the present application.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations 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.

It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, and are not repeated herein.

In the several embodiments provided by the present 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, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

The units described 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 on a plurality of 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.

In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.

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 this 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, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

The steps in the method of the embodiment of the application can be sequentially adjusted, combined and deleted according to actual needs.

The modules in the device of the embodiment of the application can be combined, divided and deleted according to actual needs.

The above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the application.

Claims

1. A method for transmitting a random access message, comprising:

receiving first configuration information from network equipment, wherein the first configuration information comprises time-frequency resource configuration information;

when the time-frequency resource configuration information comprises first time-frequency resource configuration information, the user equipment type corresponding to the first time-frequency resource is a terminal equipment with reduced capacity, and a random access message is sent to the network equipment on the first time-frequency resource;

And when the time-frequency resource configuration information does not comprise the first time-frequency resource configuration information, sending a random access message to the network equipment on a second time-frequency resource, wherein the second time-frequency resource is a random access resource configured for the traditional terminal equipment for the user equipment type.

2. The method of claim 1, wherein the step of determining the position of the substrate comprises,

the first configuration information further includes at least one offset value, and the second time-frequency resources are determined according to the at least one offset value and between the first time-frequency resources.

3. A method for determining a type of a user equipment, applied to a network equipment, comprising:

transmitting first configuration information to user equipment, wherein the first configuration information comprises time-frequency resource configuration information;

when the time-frequency resource configuration information comprises first time-frequency resource configuration information, the user equipment type corresponding to the first time-frequency resource is a terminal equipment with reduced capability, and a random access message from the user equipment is received on the first time-frequency resource;

and when the time-frequency resource configuration information does not comprise the first time-frequency resource configuration information, receiving a random access message from the user equipment on a second time-frequency resource, wherein the second time-frequency resource is a random access resource configured for the user equipment type for the traditional terminal equipment.

4. The method of claim 3, wherein the step of,

5. A communication device, comprising:

a transceiver unit, configured to receive first configuration information from a network device, where the first configuration information includes time-frequency resource configuration information;

the time-frequency resource configuration information comprises first time-frequency resource configuration information, the type of the user equipment corresponding to the first time-frequency resource is a terminal equipment with reduced capacity, and a random access message is sent to the network equipment on the first time-frequency resource;

the time-frequency resource allocation information does not comprise the first time-frequency resource allocation information, and the random access information is sent to the network equipment on a second time-frequency resource, wherein the second time-frequency resource is a random access resource allocated for the user equipment type for the traditional terminal equipment.

6. The communication device of claim 5, wherein the communication device comprises a communication device,

7. A network device, comprising:

the receiving and transmitting unit is used for sending first configuration information to the user equipment, wherein the first configuration information comprises time-frequency resource configuration information;

the transceiver unit is further configured to, when the time-frequency resource configuration information includes first time-frequency resource configuration information, receive, on the first time-frequency resource, a random access message from the user equipment, where a user equipment type corresponding to the first time-frequency resource is a reduced-capability terminal equipment;

the time-frequency resource configuration information does not include the first time-frequency resource configuration information, and the random access information from the user equipment is received on a second time-frequency resource, wherein the second time-frequency resource is a random access resource configured for the user equipment type for the traditional terminal equipment.

8. The network device of claim 7, wherein the network device,

9. A communication device comprising a processor connected to a memory for storing a computer program, the processor being configured to execute the computer program stored in the memory to cause the device to perform the method of any one of claims 1-4.

10. A chip, comprising a processor and an interface;

the processor is configured to read instructions to perform the method of any of claims 1-4.

11. A computer readable storage medium, characterized in that the computer readable storage medium stores a computer program, which, when run, implements the method according to any of claims 1-4.

12. A communication system comprising the communication apparatus of claim 5 or 6, or the network device of claim 7 or 8.