JP2020167707A - Control information format processing method and device - Google Patents

Abstract

To provide a control information format processing method and a device.SOLUTION: The method includes the steps of: determining a control information format of downlink control information; and transmitting the downlink control information to user equipment (UE). In the step of determining the control information format of the downlink control information, when the control information format of the downlink control information is a first control information format, setting that an in-narrow-band resource allocation field included in the downlink control information corresponding to the first control information format is valid is shown. When the control information format of the downlink control information is a second control information format, setting that an in-narrow-band resource allocation field included in the downlink control information corresponding to the second control information format is invalid is shown.SELECTED DRAWING: Figure 1

Description

Embodiments of the present invention relate to the field of communication technology, and more specifically to control information format processing methods and devices.

The control channel carries downlink control information. The downlink control information may be used to carry control channel command information. For example, the control channel command information may include one or more of a random access preamble index instruction, a random access channel profile index instruction, or a random access channel coverage extension level instruction.

The downlink control information may be further used to carry the authorization information. The authorization information carries the control information required by the user equipment to receive or transmit data. The downlink control information used to indicate downlink data transmission is sometimes referred to as downlink authorization. The uplink control information used to indicate the uplink data transmission is sometimes referred to as uplink authorization.

Control channel payload (for example, number of bits) carrying authorization information to avoid increasing control channel blind detection performed by the user equipment (full name in English: User Equipment, UE for short) Is usually the same as the payload size (eg, number of bits) of the control channel that carries the control channel command information. Therefore, it is necessary to distinguish whether the downlink control information carries the authorization information for the UE or the control channel command information.

In the prior art, when downlink control information carries control channel command information, there are usually many spare bits. The spare bit may be a reserved bit or a padding bit. Spare bits are also included in all bits in the significant field when the downlink control information carries authorization information, and in all bits where the downlink control information is in the significant field when carrying control channel command information. It may be a difference bit between bits. Significant fields indicate that the field has a clear physical meaning in the downlink control information. Significant fields are not reserved bits, padding bits, or spare bits. The functions borne by the downlink control information can be distinguished by setting the spare bit to a preset value. For example, if the downlink control information carries control channel command information, there are 30 spare bits. The state of the 30 spare bits may be set to the constant bit state. Therefore, when the downlink control information carries the authorization information, the bit state corresponding to the 30 spare bits in the downlink control information is not the above-mentioned fixed bit state. Since there are many spare bits, when the downlink control information carries the authorization information, the base station flexibly sets the bit state corresponding to the spare bit in the downlink control information to a state other than the fixed bit state. Is quite possible. In this way, whether the downlink control information carries the authorization information or the control channel command information can be distinguished according to the bit state corresponding to the spare bit.

However, in the coverage extension scenario, there are few bits in the downlink control information. When the downlink control information carries control channel command information, there are only a few spare bits (for example, only one spare bit). By setting the spare bit to a preset value, it is highly possible that the function borne by the downlink control information cannot be distinguished. For example, if the downlink control information carries control channel command information, there is one spare bit. According to the prior art, the bit state corresponding to one spare bit may be set to a fixed bit state. When the downlink control information carries the authorization information, it is highly likely that the bit state corresponding to one spare bit is the constant bit state described above. As a result, the user equipment is more likely to misdetermine the content borne by the control channel. That is, in the coverage extension scenario, whether the downlink control information carries the authorization information or the control channel command information cannot be distinguished according to the bit state corresponding to the spare bit.

Embodiments of the present invention provide control information format processing methods, base stations, and user equipment to effectively distinguish downlink control information in coverage extension scenarios.

According to the first aspect, one embodiment of the present invention provides a control information format processing method, which method is:
Steps to determine the control information format of the downlink control information,
If the control information format of the downlink control information is the first control information format, it is determined that the first field contained in the downlink control information corresponding to the first control information format indicates a valid setting. Alternatively, if the control information format of the downlink control information is the second control information format, it is determined that the second field included in the downlink control information corresponding to the second control information format indicates an invalid setting. Steps and
Includes a step of transmitting downlink control information corresponding to the determined control information format to the user equipment (UE).

With reference to the first aspect, in the first possible implementation of the first aspect,
A valid setting includes a valid bit state, or a valid first information index, or a valid combination of a first information index and a second information.
An invalid setting includes an invalid bit state, an invalid first information index, or an invalid combination of the first information index and the second information.
A valid bit state indicates a valid first information or a valid first information index, and an invalid bit state indicates an invalid first information or an invalid first information index, and the first information. The index is used to indicate the first information.

In the second possible implementation of the first aspect, with reference to the first possible implementation of the first aspect or the first aspect.
The bit position of the first field in the downlink control information corresponding to the first field is the same as the bit position of the second field in the downlink control information corresponding to the second field, or the first The bit position of the upper X bit of the first field in the downlink control information corresponding to the field is the same as the bit position of the second field in the downlink control information corresponding to the second field. Is a non-zero natural number, or the bit position of the lower X bit of the first field in the downlink control information corresponding to the first field is the second bit position in the downlink control information corresponding to the second field. Same as the bit position of the field.

With reference to the first or second possible implementation of the first aspect or the first aspect, in the third possible implementation of the first aspect,
The first field contains one or more of the transport block size field, modulation and coding method field, narrowband resource allocation field, or padding bit field, and the second field is the transport block size. Contains one or more of fields, modulation and coding method fields, narrowband resource allocation fields, or padding bit fields, or the first field is a transport block size field, modulation and coding method field, It contains one or more of the narrowband resource allocation fields, or padding bit fields, and the second field contains one or more of the authorization distinction fields, spare bit fields, or padding bit fields.

With reference to the first, second, or third possible implementation of the first aspect, in the fourth possible implementation of the first aspect,
A valid combination of the first information index and the second information is
The downlink control information is used for downlink data scheduling, the first information index contains an index number with a fixed value of 0-9, and the second information contains a value with a fixed value of 4 or 6. And / or the downlink control information is used for downlink data scheduling, the first information index contains an index number of 10, the second information contains a value of 4, and / or the downlink control information Used for uplink data scheduling, including that the first information index contains an index number with a fixed value of 0 to 10 and the second information contains a value with a fixed value of 1 or 2.
An invalid combination of the first information index and the second information
The first information index contains an index number that is a fixed value of 10, 11, 12, 13, 14, or 15, the second information contains a value of 6, and / or the downlink control information is downlink. Used for data scheduling, the first information index contains an index number with a fixed value of 0 to 15, the second information contains a value with a fixed value of 1, 2, 3, or 5, and / Alternatively, the downlink control information is used for uplink data scheduling, the first information index contains an index number with a fixed value of 0 to 15, and the second information has a fixed value of 3, 4, 5, or 6. Includes including certain values.

With reference to the first, second, third, or fourth possible implementations of the first aspect, in the fifth possible implementation of the first aspect,
Valid bit states include state values of all 4-bit state values except 1011, 1100, 1101, 1110, and 1111, and / or invalid bit states are 1011, 1100, 1101, 1110, or The first information index that contains and / or is valid for at least one of 1111 has an index number of 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, or 10. The first information index that contains one of the indexes and / or is invalid includes an index whose index number is one of 11, 12, 13, 14, or 15.

With reference to the first, second, third, fourth, or fifth possible implementations of the first aspect, in the sixth possible implementation of the first aspect, the first information is: The transport block size or modulation and coding scheme and / or the first information index is the transport block size index or modulation and coding scheme index and / or the second information is the number of resource blocks. Is.

A seventh possible implementation of the first aspect with reference to the first, second, third, fourth, fifth, or sixth possible implementation of the first aspect or first aspect. Then, the downlink control information corresponding to the first control information format carries the authorization information, and / or the downlink control information corresponding to the second control information format carries the control channel command information.

According to a second aspect, one embodiment of the present invention provides a control information format processing method, which method is:
The step of detecting the first field contained in the downlink control information transmitted by the base station or the second field contained in the downlink control information, and
If the first field contained in the downlink control information is determined to indicate a valid setting, then the step of retrieving the downlink control information according to the first control information format, and
If it is determined that the second field contained in the downlink control information indicates an invalid setting, it includes a step of acquiring the downlink control information according to the second control information format.

With reference to the second aspect, in the first possible implementation of the second aspect,
A valid setting includes a valid bit state, or a valid first information index, or a valid combination of a first information index and a second information.
An invalid setting includes an invalid bit state, an invalid first information index, or an invalid combination of the first information index and the second information.
A valid bit state indicates a valid first information or a valid first information index, and an invalid bit state indicates an invalid first information or an invalid first information index, and the first information. The index is used to indicate the first information.

With reference to the first possible implementation of the second aspect or the second aspect, in the second possible implementation of the second aspect,
The bit position of the first field in the downlink control information corresponding to the first field is the same as the bit position of the second field in the downlink control information corresponding to the second field, or the first The bit position of the upper X bit of the first field in the downlink control information corresponding to the field is the same as the bit position of the second field in the downlink control information corresponding to the second field. Is a non-zero natural number, or the bit position of the lower X bit of the first field in the downlink control information corresponding to the first field is the second bit position in the downlink control information corresponding to the second field. Same as the bit position of the field.

With reference to the first or second possible implementation of the second aspect or the second aspect, in the third possible implementation of the second aspect,
The first field contains one or more of the transport block size field, modulation and coding method field, narrowband resource allocation field, or padding bit field, and the second field is the transport block size. Contains one or more of fields, modulation and coding method fields, narrowband resource allocation fields, or padding bit fields, or the first field is a transport block size field, modulation and coding method field, It contains one or more of the narrowband resource allocation fields, or padding bit fields, and the second field contains one or more of the authorization distinction fields, spare bit fields, or padding bit fields.

With reference to the first, second, or third possible implementation of the second aspect, in the fourth possible implementation of the second aspect,
A valid combination of the first information index and the second information is
The downlink control information is used for downlink data scheduling, the first information index contains an index number with a fixed value of 0-9, and the second information contains a value with a fixed value of 4 or 6. And / or the downlink control information is used for downlink data scheduling, the first information index contains an index number of 10, the second information contains a value of 4, and / or the downlink control information Used for uplink data scheduling, including that the first information index contains an index number with a fixed value of 0 to 10 and the second information contains a value with a fixed value of 1 or 2.
An invalid combination of the first information index and the second information
The first information index contains an index number that is a fixed value of 10, 11, 12, 13, 14, or 15, the second information contains a value of 6, and / or the downlink control information is downlink. Used for data scheduling, the first information index contains an index number with a fixed value of 0 to 15, the second information contains a value with a fixed value of 1, 2, 3, or 5, and / Alternatively, the downlink control information is used for uplink data scheduling, the first information index contains an index number with a fixed value of 0 to 15, and the second information has a fixed value of 3, 4, 5, or 6. Includes including certain values.

With reference to the first, second, third, or fourth possible implementation of the second aspect, in the fifth possible implementation of the second aspect,
Valid bit states include state values of all 4-bit state values except 1011, 1100, 1101, 1110, and 1111, and / or invalid bit states are 1011, 1100, 1101, 1110, or The first information index that contains and / or is valid for at least one of 1111 has an index number of 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, or 10. The first information index that contains one of the indexes and / or is invalid includes an index whose index number is one of 11, 12, 13, 14, or 15.

With reference to the first, second, third, fourth, or fifth possible implementations of the second aspect, in the sixth possible implementation of the second aspect, the first information is: The transport block size or modulation and coding scheme and / or the first information index is the transport block size index or modulation and coding scheme index and / or the second information is the number of resource blocks. Is.

A seventh possible implementation of the second aspect with reference to the first, second, third, fourth, fifth, or sixth possible implementation of the second aspect or second aspect. Then, the downlink control information corresponding to the first control information format carries the authorization information, and / or the downlink control information corresponding to the second control information format carries the control channel command information.

According to a third aspect, one embodiment of the present invention provides a base station, which is a base station.
An information format determination module configured to determine the control information format of downlink control information,
If the control information format of the downlink control information is the first control information format, it is determined that the first field contained in the downlink control information corresponding to the first control information format indicates a valid setting. Alternatively, if the control information format of the downlink control information is the second control information format, it is determined that the second field included in the downlink control information corresponding to the second control information format indicates an invalid setting. With the field setting judgment module configured as
Includes a transmit / receive module configured to transmit downlink control information corresponding to the determined control information format to the user equipment (UE).

With reference to the third aspect, in the first possible implementation of the third aspect,
A valid setting determined by the field setting determination module includes a valid bit state, or a valid first information index, or a valid combination of the first information index and the second information.
Invalid settings determined by the field setting determination module include an invalid bit state, an invalid first information index, or an invalid combination of the first information index and the second information.
A valid bit state indicates a valid first information or a valid first information index, and an invalid bit state indicates an invalid first information or an invalid first information index, and the first information. The index is used to indicate the first information.

With reference to the first possible implementation of the third aspect or the third aspect, in the second possible implementation of the third aspect, the field setting determination module has the following content:
The bit position of the first field in the downlink control information corresponding to the first field is the same as the bit position of the second field in the downlink control information corresponding to the second field, or the first The bit position of the upper X bit of the first field in the downlink control information corresponding to the first field is the same as the bit position of the second field in the downlink control information corresponding to the second field. X is a non-zero natural number, or the bit position of the lower X bit of the first field in the downlink control information corresponding to the first field is the first in the downlink control information corresponding to the second field. It is specifically configured to determine that it is the same as the bit position of the field 2.

With reference to the first or second possible implementation of the third aspect or the third aspect, in the third possible implementation of the third aspect, the field setting determination module has the following content:
The first field contains one or more of the transport block size field, the modulation and encoding method field, the narrowband resource allocation field, or the padding bit field, and the second field is the transport block size. Contains one or more of fields, modulation and coding method fields, narrowband resource allocation fields, or padding bit fields, or the first field is a transport block size field, modulation and coding method field. , Containing one or more of the narrowband resource allocation field, or padding bitfield, and the second field containing one or more of the authorization distinction field, spare bitfield, or padding bitfield. It is specifically configured to judge.

With reference to the first, second, or third possible implementations of the third aspect, in the fourth possible implementation of the third aspect,
The field setting judgment module has a valid combination of the first information index and the second information.
The downlink control information is used for downlink data scheduling, the first information index contains an index number with a fixed value of 0-9, and the second information contains a value with a fixed value of 4 or 6. And / or the downlink control information is used for downlink data scheduling, the first information index contains an index number of 10, the second information contains a value of 4, and / or the downlink control information Used for uplink data scheduling, determine that the first information index contains an index number with a fixed value of 0 to 10 and the second information contains a value with a fixed value of 1 or 2. Specifically configured in
The field setting judgment module has an invalid combination of the first information index and the second information.
The first information index contains an index number that is a fixed value of 10, 11, 12, 13, 14, or 15, the second information contains a value of 6, and / or the downlink control information is downlink. Used for data scheduling, the first information index contains an index number with a fixed value of 0 to 15, the second information contains a value with a fixed value of 1, 2, 3, or 5, and / Alternatively, the downlink control information is used for uplink data scheduling, the first information index contains an index number with a fixed value of 0 to 15, and the second information has a fixed value of 3, 4, 5, or 6. It is specifically configured to include the inclusion of a certain value.

With reference to the first, second, third, or fourth possible implementations of the third aspect, in the fifth possible implementation of the third aspect,
The field setting determination module is specifically configured to determine that a valid bit state includes a state value of all 4-bit state values except 1011, 1100, 1101, 1110, and 1111, and / Alternatively, the field setting determination module is specifically configured to determine that an invalid bit state contains at least one of 1011, 1100, 1101, 1110, or 1111 state values and / or field setting determination. The module determines that the first valid information index contains an index whose index number is one of 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, or 10. The field setting determination module is specifically configured to do so, and the invalid first information index is an index whose index number is one of 11, 12, 13, 14, or 15. It is specifically configured to be included.

With reference to the first, second, third, fourth, or fifth possible implementations of the third aspect, in the sixth possible implementation of the third aspect, the first information is: The transport block size or modulation and coding scheme and / or the first information index is the transport block size index or modulation and coding scheme index and / or the second information is the number of resource blocks. Is.

A seventh possible implementation of the third aspect with reference to the first, second, third, fourth, fifth, or sixth possible implementation of the third aspect or third aspect. Then, the downlink control information corresponding to the first control information format carries the authorization information, and / or the downlink control information corresponding to the second control information format carries the control channel command information.

According to a fourth aspect, one embodiment of the present invention provides a user device (UE).
A detection module configured to detect the first field contained in the downlink control information transmitted by the base station, or the second field contained in the downlink control information.
If it is determined that the first field contained in the downlink control information indicates a valid setting, then the first acquisition module, which is configured to acquire the downlink control information according to the first control information format, and
If it is determined that the second field contained in the downlink control information indicates an invalid setting, it includes a second acquisition module configured to acquire the downlink control information according to the second control information format.

With reference to the fourth aspect, in the first possible implementation of the fourth aspect,
Valid settings determined by the first capture module include a valid bit state, or a valid first information index, or a valid combination of the first information index and the second information.
Invalid settings specifically determined by the second capture module include an invalid bit state, an invalid first information index, or an invalid combination of the first information index and the second information.
A valid bit state indicates a valid first information or a valid first information index, and an invalid bit state indicates an invalid first information or an invalid first information index, and the first information. The index is used to indicate the first information.

With reference to the first possible implementation of the fourth aspect or the fourth aspect, in the second possible implementation of the fourth aspect, the detection module has the following content:
The bit position of the first field in the downlink control information corresponding to the first field is the same as the bit position of the second field in the downlink control information corresponding to the second field, or the first The bit position of the upper X bit of the first field in the downlink control information corresponding to the first field is the same as the bit position of the second field in the downlink control information corresponding to the second field. X is a non-zero natural number, or the bit position of the lower X bit of the first field in the downlink control information corresponding to the first field is the first in the downlink control information corresponding to the second field. It is specifically configured to detect that it is the same as the bit position of the field 2.

With reference to the first or second possible implementation of the fourth aspect or the fourth aspect, in the third possible implementation of the fourth aspect, the detection module has the following content:
The first field contains one or more of the transport block size field, the modulation and encoding method field, the narrowband resource allocation field, or the padding bit field, and the second field is the transport block size. Contains one or more of fields, modulation and coding method fields, narrowband resource allocation fields, or padding bit fields, or the first field is a transport block size field, modulation and coding method field. , Containing one or more of the narrowband resource allocation field, or padding bitfield, and the second field containing one or more of the authorization distinction field, spare bitfield, or padding bitfield. Is specifically configured to detect.

With reference to the first, second, or third possible implementations of the fourth aspect, in the fourth possible implementation of the fourth aspect,
The first acquisition module has a valid combination of the first information index and the second information.
The downlink control information is used for downlink data scheduling, the first information index contains an index number with a fixed value of 0-9, and the second information contains a value with a fixed value of 4 or 6. And / or the downlink control information is used for downlink data scheduling, the first information index contains an index number of 10, the second information contains a value of 4, and / or the downlink control information Used for uplink data scheduling, determine that the first information index contains an index number with a fixed value of 0 to 10 and the second information contains a value with a fixed value of 1 or 2. Specifically configured in
The second acquisition module has an invalid combination of the first information index and the second information.
The first information index contains an index number that is a fixed value of 10, 11, 12, 13, 14, or 15, the second information contains a value of 6, and / or the downlink control information is downlink. Used for data scheduling, the first information index contains an index number with a fixed value of 0 to 15, the second information contains a value with a fixed value of 1, 2, 3, or 5, and / Alternatively, the downlink control information is used for uplink data scheduling, the first information index contains an index number with a fixed value of 0 to 15, and the second information has a fixed value of 3, 4, 5, or 6. It is specifically configured to include the inclusion of a certain value.

With reference to the first, second, third, or fourth possible implementations of the fourth aspect, in the fifth possible implementation of the fourth aspect,
The first capture module is specifically configured to determine that a valid bit state contains a state value of all 4-bit state values except 1011, 1100, 1101, 1110, and 1111. The / or second capture module is specifically configured to determine that an invalid bit state contains at least one of 1011, 1100, 1101, 1110, or 1111 state values, and / or a second. The get module of 1 has an index whose first valid information index is one of 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, or 10 with its index number. The second acquisition module, which is specifically configured to contain and / or has an invalid first information index, has an index number of 11, 12, 13, 14, or 15. It is specifically configured to include an index that is.

With reference to the first, second, third, fourth, or fifth possible implementations of the fourth aspect, in the sixth possible implementation of the fourth aspect, the first information is: The transport block size or modulation and coding scheme and / or the first information index is the transport block size index or modulation and coding scheme index and / or the second information is the number of resource blocks. Is.

A seventh possible implementation of the fourth aspect with reference to the first, second, third, fourth, fifth, or sixth possible implementation of the fourth aspect or fourth aspect. Then, the downlink control information corresponding to the first control information format carries the authorization information, and / or the downlink control information corresponding to the second control information format carries the control channel command information.

From the above technical solutions, it can be seen that the embodiments of the present invention have the following advantages.

In the embodiment of the present invention, the control information format of the downlink control information is first determined. When the control information format of the downlink control information is the first control information format, it is determined that the first field included in the downlink control information corresponding to the first control information format indicates a valid setting. Alternatively, when the control information format of the downlink control information is the second control information format, it is determined that the second field included in the downlink control information corresponding to the second control information format indicates an invalid setting. To. The downlink control information corresponding to the determined control information format is finally transmitted to the UE. Whether or not the setting is valid may be indicated by the first field or the second field included in the downlink control information according to the control information format of the downlink control information. Therefore, the UE can identify the control information format used by the base station according to the first field or the second field contained in the downlink control information, and as a result, the UE can determine the determined control information format. Downlink control information can be acquired according to the above. Since the first and second fields indicate the contents of the fixed fields carried within the downlink control information, the payload of the downlink control information can be indicated by using the control information format to indicate the contents of the fixed fields. Downlink control information in coverage expansion scenarios can be effectively distinguished without increasing size.

It is a schematic block diagram of the process of the control information format processing method according to one Embodiment of this invention. It is a schematic block diagram of the process of another control information format processing method according to one Embodiment of this invention. It is the schematic of the application scenario of the control information format processing method by one Embodiment of this invention. It is the schematic of another application scenario of the control information format processing method by one Embodiment of this invention. It is the schematic of another application scenario of the control information format processing method by one Embodiment of this invention. It is the schematic of another application scenario of the control information format processing method by one Embodiment of this invention. It is the schematic of the organizational structure of the base station according to one Embodiment of this invention. It is the schematic of the organizational structure of the user apparatus according to one Embodiment of this invention. It is the schematic of the organizational structure of another base station according to one Embodiment of this invention. It is a schematic diagram of the organizational structure of another user device according to one embodiment of the present invention.

Embodiments of the present invention provide control information format processing methods, base stations, and user equipment to effectively distinguish downlink control information in coverage extension scenarios.

In order to make the invention objectives, features, and advantages of the present invention clearer and easier to understand, the technical solutions in the embodiments of the present invention are clearly described below with reference to the accompanying drawings in the embodiments of the present invention. To do. Of course, the embodiments described below are not all, but only some, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments acquired by those skilled in the art should fall within the scope of protection of the present invention.

In the specification, claims, and accompanying drawings of the present invention, terms such as "first" and "second" distinguish between similar objects and do not necessarily have a particular order or order. Does not always indicate. It should be understood that the terms so used are interchangeable in appropriate circumstances and are merely a distinction used when objects with the same attributes are described in embodiments of the present invention. Moreover, the terms "include", "include" and any other variant means to cover non-exclusive inclusions, resulting in processes, methods, systems, products involving a series of units. , Or devices are not necessarily limited to those units and may include other units that are not explicitly listed or are specific to such processes, methods, products, or devices.

First, the system architecture to which the control information format processing method provided by the embodiment of the present invention is applied will be described. The control information format processing method provided by the embodiment of the present invention is applied to the base station side and the user equipment side. The base station transmits downlink control information according to the determined control information format. The UE must first detect the downlink control information transmitted by the base station and acquire the downlink control information. The control information format processing method provided by the embodiment of the present invention will be described in detail below from the viewpoint of the base station side and the user equipment side.

With reference to FIG. 1, the control information formatting processing method provided by the embodiment of the present invention may include the following steps.

101: Determine the control information format of the downlink control information.

In this embodiment of the invention, the control channel carries downlink control information, and the downlink control information may be used to carry control information in multiple formats. Therefore, the base station first needs to determine the control information format of the downlink control information. Specifically, the base station can set a plurality of control information formats, and the control information format set by the base station includes a first control information format and a second control information format. The first control information format and the second control information format indicate two different control information formats. In various specific scenarios, the first control information format and the second control information format may be used to indicate the actual control information format. In this embodiment of the present invention, the control information format of the downlink control information does not have to be limited to the first control information format and the second control information format, and may further include more control information formats. .. The method for processing more control information formats is similar to the method for processing the first control information format and the second control information format provided in this embodiment of the present invention, and the first method. Similar to the method for processing the control information format and the second control information format of the above, and refer to the process of processing the first control information format and the second control information format described in the following embodiments. can do.

In some embodiments of the invention, the downlink control information corresponding to the first control information format carries authorization information and / or the downlink control information corresponding to the second control information format is controlled. Carry channel command information. In this implementation scenario, the downlink control information can carry authorization information or control channel command information. Downlink control information can carry other control information further, for example, scheduling information for paging messages, system information update instructions, earthquake and typhoon alerts, commercial mobile access services, or extensions. One or more of the access restrictions (Full name in English: Extended Access Barring, EAB for short) can be carried further.

102: When the control information format of the downlink control information is the first control information format, it is determined that the first field included in the downlink control information corresponding to the first control information format indicates a valid setting. Or, when the control information format of the downlink control information is the second control information format, the second field included in the downlink control information corresponding to the second control information format indicates an invalid setting. to decide.

In this embodiment of the invention, the base station first needs to determine the control information format of the downlink control information in step 101. The base station needs to determine various control information formats of the downlink control information using various control information format instruction methods, so that the UE has various control information formats determined by the base station. Various control information formats used by the base station can be specified according to the instruction method. In this embodiment of the invention, the base station can use the fields contained in the downlink control information to indicate the control information format. Specifically, the base station can indicate the control information format used by the base station by specifying whether the fields contained in the downlink control information indicate valid settings. Since the fields contained in the downlink control information are part of the content of the downlink control information that needs to be transmitted, how to specify whether the fields contained in the downlink control information indicate a valid setting is controlled. Used by base stations to indicate the information format. This method does not add extra configuration fields to the downlink control information, it only reuses the fields contained in the downlink control information. Therefore, the payload size of the downlink control information does not increase, and the overhead for the UE to detect the downlink control information does not increase.

In this embodiment of the invention, for the sake of brevity, the fields used to indicate the control information format in the downlink control information are defined as a first field and a second field. When the first field contained in the downlink control information indicates a valid setting, it indicates that the base station uses the first control information format. When the second field contained in the downlink control information indicates an invalid setting, it indicates that the base station uses the second control information format. A valid setting can indicate that the field content contained in the first field is valid, and an invalid setting indicates that the field content contained in the second field is invalid. Therefore, if the base station determines that the control information format of the downlink control information is the first control information format, the base station sets the indication of the first field contained in the downlink control information to a valid setting. However, the UE can determine that the base station has used the first control information format according to the instructions in the first field contained in the downlink control information, that is, valid settings. Similarly, if the base station determines that the control information format of the downlink control information is the second control information format, the base station invalidates the indication of the second field contained in the downlink control information. When set, the UE can determine that the base station has used the second control information format according to the instructions in the second field contained in the downlink control information, ie, the invalid setting.

Note that in some embodiments of the invention, the first field and the second field may be the same field or different fields. For example, the first field may include one or more of a transport block size field, a modulation and encoding method field, a narrowband resource allocation field, or a padding bit field, and the second field may contain: It may include one or more of a transport block size field, a modulation and encoding method field, a narrowband resource allocation field, or a padding bit field. Alternatively, the first field may include one or more of a transport block size field, a modulation and encoding method field, an intrabandwidth resource allocation field, or a padding bit field, and the second field may contain. It may include one or more of the authorization distinction field, the spare bit field, or the padding bit field.

The transport block size field, modulation and coding method field, narrowband resource allocation field, and padding bit field are specific fields included in the downlink control information. In this embodiment of the invention, one or more of the fields may be used as a first field and a second field. In addition, the authorization distinction field and the spare bit field are also specific fields included in the downlink control information, and the second field may be implemented using the authorization distinction field and the spare bit field.

In some embodiments of the invention, a valid setting may include a valid bit state, or a valid first information index, or a valid combination of a first information index and a second information.

An invalid setting includes an invalid bit state, an invalid first information index, or an invalid combination of the first information index and the second information.

A valid bit state indicates a valid first information or a valid first information index, and an invalid bit state indicates an invalid first information or an invalid first information index, and the first information. The index is used to indicate the first information.

Specifically, in this embodiment of the invention, a valid setting may be a valid bit state, where the valid bit state indicates a valid first information or a valid first information index. Yes, the first information index can indicate the first information. That is, if it decides to use the first control information format, the base station can set the indication in the first field to a valid bit state. The UE can know through the valid bit state that the base station has used the first control information format. A valid setting may be a valid first information index, i.e., if the base station decides to use the first control information format, the base station indicates the indication in the first field as valid first information. Can be set in the index. The UE can know that the base station has used the first control information format through a valid first information index. A valid setting may be a valid combination of the first information index and the second information, i.e., the combination of the first information index and the second information is valid. The second information may be information other than the first information. If the valid setting is a valid combination of the first information index and the second information, i.e., when deciding to use the first control information format, the base station will indicate the first field. It can be set as a valid combination of the first information index and the second information. The UE can know that the base station has used the first control information format through a valid combination of the first information index and the second information.

In this embodiment of the invention, the invalid setting may be an invalid bit state, where the invalid bit state can indicate an invalid first information or an invalid first information index, the first. The information index can indicate the first information. That is, if it decides to use the first control information format, the base station can set the indication in the second field to an invalid bit state. The UE can know through the invalid bit state that the base station has used the first control information format. The invalid setting may be an invalid first information index, i.e., if the base station decides to use the first control information format, the base station indicates the second field of invalid first information. Can be set in the index. The UE can know through the invalid first information index that the base station has used the first control information format. The invalid setting may be an invalid combination of the first information index and the second information, that is, the combination of the first information index and the second information is invalid. The second information may be information other than the first information. If the invalid setting is an invalid combination of the first information index and the second information, i.e., if it decides to use the first control information format, the base station will give instructions in the second field. It can be set to an invalid combination of the first information index and the second information. The UE can know through the invalid combination of the first information index and the second information that the base station has used the first control information format.

Moreover, in other embodiments of the invention, the first information is the transport block size or modulation and coding scheme, and / or the first information index is the transport block size index or modulation and coding. The method index and / or the second information is the number of resource blocks. Note that in a real application scenario, the first information, the first information index, and the second information may be further implemented in different ways. Only feasible implementation scenarios in this embodiment of the invention are provided herein.

In some embodiments of the invention, valid and invalid combinations are further described below. Specifically, a valid combination of the first information index and the second information is
The downlink control information is used for downlink data scheduling, the first information index contains an index number with a fixed value of 0-9, and the second information contains a value with a fixed value of 4 or 6. And / or the downlink control information is used for downlink data scheduling, the first information index contains an index number of 10, the second information contains a value of 4, and / or the downlink control information Used for uplink data scheduling, the first information index may include an index number with a fixed value of 0 to 10, and the second information may include a value with a fixed value of 1 or 2.

The first information index contains index numbers that are fixed values from 0 to 9, i.e. the first information index is index number 0, index number 1, index number 2, index number 3, index number 4, index. It may be number 5, index number 6, index number 7, index number 8, or index number 9. This is not limited herein. Specifically, the specific index number included in the first information index may be determined according to the application scenario.

Specifically, an invalid combination of the first information index and the second information is
The first information index contains an index number that is a fixed value of 10, 11, 12, 13, 14, or 15, the second information contains a value of 6, and / or the downlink control information is downlink. Used for data scheduling, the first information index contains an index number with a fixed value of 0 to 15, the second information contains a value with a fixed value of 1, 2, 3, or 5, and / Alternatively, the downlink control information is used for uplink data scheduling, the first information index contains an index number with a fixed value of 0 to 15, and the second information has a fixed value of 3, 4, 5, or 6. It may include including certain values.

In some embodiments of the invention, valid and invalid bit states are described by the following examples. Specifically, valid bit states may include state values of all 4-bit state values except 1011, 1100, 1101, 1110, and 1111, and / or invalid bit states are 1011, The first information index, which may contain at least one state value of 1100, 1101, 1110, or 1111 and / or is valid, has an index number of 0, 1, 2, 3, 4, 5, 6. The first information index, which may contain an index that is one of 7, 8, 9, or 10, and / or is invalid, has an index number of 11, 12, 13, 14, or 15. It may include an index that is one of.

In some embodiments of the invention, the bit position of the first field in the downlink control information corresponding to the first field is the bit position of the second field in the downlink control information corresponding to the second field. The bit position of the upper X bit of the first field in the downlink control information that is the same as the bit position or corresponds to the first field is the second in the downlink control information that corresponds to the second field. Same as the bit position of the field, where X is a non-zero natural number, or the bit position of the lower X bit of the first field in the downlink control information corresponding to the first field corresponds to the second field. It is the same as the bit position of the second field in the downlink control information.

The bit position refers to the specific position of the field in the downlink control information. The bit position may be the relative position of the field to another field in the downlink control information, or the bit order of the field in the downlink control information. This is not specifically limited herein. In addition, the high X bits in the first field can point to the total X bits starting from the most significant bit in the first field in order from top to bottom. The lower X bits of the first field can point to the total X bits starting from the least significant bit in the first field in order from bottom to top.

In some embodiments of the invention, the number of bits in the first field is the same as the number of bits in the second field, or the number of high-order X bits in the first field is the first. The number of bits in the second field is the same as the number of bits in the second field, where X is the number of bits in the second field, or the number of lower X bits in the first field is the number of bits in the second field. Is the same as, where X is the number of bits in the second field.

In other words, in this embodiment of the invention, the first field may have the same field length as the second field, i.e., the number of bits in the first field is in the second field. It may be the same as the number of bits of. In addition, the first field may optionally have a larger field length than the second field, i.e. the number of high X bits in the first field is in the second field. It is the same as the number of bits, or the number of low-order X bits in the first field is the same as the number of bits in the second field.

103. Sends downlink control information corresponding to the determined control information format to the UE.

In this embodiment of the invention, according to the description in step 102, after the base station sets the control information format instructions in the downlink control information, the base station has a downlink corresponding to the determined control information format. Control information can be sent to the UE. The base station can use the first control information format or the second control information format. When the base station uses the first control information format and the second control information format, the base station has different validity settings for the first field and the second field contained in the downlink control information. This can be seen in step 102. The downlink control information transmitted by the base station to the UE includes information regarding the validity setting of the first field or the second field. The UE detects the downlink control information transmitted by the base station, and the base station uses the first control information format according to the information regarding the validity setting of the first field or the second field contained in the downlink control information. The UE, which can determine whether the control information format used or the second control information format is used, can acquire the downlink control information transmitted by the base station according to the determined control information format.

From the description of this embodiment of the present invention, it can be seen that the control information format of the downlink control information is determined first. When the control information format of the downlink control information is the first control information format, it is determined that the first field included in the downlink control information corresponding to the first control information format indicates a valid setting. Alternatively, when the control information format of the downlink control information is the second control information format, it is determined that the second field included in the downlink control information corresponding to the second control information format indicates an invalid setting. To. The downlink control information corresponding to the determined control information format is finally transmitted to the UE. Whether or not the setting is valid may be indicated by the first field or the second field included in the downlink control information according to the control information format of the downlink control information. Therefore, the UE can identify the control information format used by the base station according to the first field or the second field contained in the downlink control information, and as a result, the UE can determine the determined control information format. Downlink control information can be acquired according to the above. Since the first and second fields indicate the contents of the fixed fields carried within the downlink control information, the payload of the downlink control information can be indicated by using the control information format to indicate the contents of the fixed fields. Downlink control information in coverage expansion scenarios can be effectively distinguished without increasing size.

The above-described embodiment describes the control information format processing method provided by this embodiment of the present invention from the viewpoint of the base station, and the following is provided by one embodiment of the present invention from the viewpoint of the user equipment. The control information format processing method to be performed will be described in detail. With reference to FIG. 2, the control information formatting processing method provided by this embodiment of the present invention may include the following steps.

201. Detects the first field contained in the downlink control information transmitted by the base station or the second field contained in the downlink control information.

In this embodiment of the invention, the UE detects downlink control information transmitted by the base station. The UE can use the fields contained in the downlink control information to identify the control information format. Specifically, the UE identifies the control information format used by the base station, depending on whether the fields contained in the downlink control information indicate valid settings. Since the fields contained in the downlink control information are part of the content of the downlink control information that needs to be transmitted, how to specify whether the fields contained in the downlink control information indicate a valid setting is controlled. Used by base stations to indicate the information format. This method does not add extra configuration fields to the downlink control information, it only reuses the fields contained in the downlink control information. Therefore, the payload size of the downlink control information does not increase, and the overhead for the UE to detect the downlink control information does not increase.

Specifically, the UE can detect the first field or the second field included in the downlink control information. In the above-described embodiment, the base station configures information as to whether the first field or the second field included in the downlink control information indicates a valid setting. The UE can detect the first or second field contained in the downlink control information and determine whether the instructions in the first or second field indicate a valid setting. If the indication result in the first field detected by the UE is different from the indication result in the second field, the UE can perform step 202 and step 203 described below separately.

In this embodiment of the present invention, when the downlink control information transmitted by the base station uses various control information formats, the UE also needs to receive the downlink control information using the corresponding control information format. is there. In this embodiment of the invention, the UE is the down transmitted by the base station depending on whether the base station has set the indication of the first field or the second field contained in the downlink control information to a valid setting. The method of acquiring the link control information can be determined. The UE detects the validity setting of the first field or the second field contained in the downlink control information, and the indication of the first field or the second field is a valid setting or an invalid setting. It is determined whether the base station has used the first control information format or the second control information format, depending on whether or not the base station has used the first control information format.

Note that in various specific scenarios, the first control information format and the second control information format may be used to indicate the actual control information format. In this embodiment of the present invention, the control information format of the downlink control information does not have to be limited to the first control information format and the second control information format, and may further include more control information formats. .. The method for processing more control information formats is similar to the method for processing the first control information format and the second control information format provided in this embodiment of the present invention, and the first method. Similar to the method for processing the control information format and the second control information format of the above, and refer to the process of processing the first control information format and the second control information format described in the following embodiments. can do.

In some embodiments of the invention, the downlink control information corresponding to the first control information format carries authorization information and / or the downlink control information corresponding to the second control information format is controlled. Carry channel command information. In this implementation scenario, the downlink control information can carry authorization information or control channel command information. This is different from the function that the downlink control information bears, and the downlink control information needs to use a different control information format. It can carry downlink control information further, for example, scheduling information for paging messages, system information update instructions, earthquake and typhoon alerts, commercial mobile access services, or It is not limited to being able to carry one or more of the extended access restrictions further.

In some embodiments of the invention, the first field and the second field may be the same field or different fields. For example, the first field may include one or more of a transport block size field, a modulation and encoding method field, a narrowband resource allocation field, or a padding bit field, and the second field may contain: It may include one or more of a transport block size field, a modulation and encoding method field, a narrowband resource allocation field, or a padding bit field. Alternatively, the first field may include one or more of a transport block size field, a modulation and encoding method field, an intrabandwidth resource allocation field, or a padding bit field, and the second field may contain. It may include one or more of the authorization distinction field, the spare bit field, or the padding bit field.

The transport block size field, modulation and coding method field, narrowband resource allocation field, and padding bit field are specific fields included in the downlink control information. In this embodiment of the invention, one or more of the fields may be used as a first field and a second field. In addition, the authorization distinction field and the spare bit field are also specific fields included in the downlink control information, and the second field may be implemented using the authorization distinction field and the spare bit field.

In some embodiments of the invention, a valid setting may include a valid bit state, or a valid first information index, or a valid combination of a first information index and a second information.

An invalid setting includes an invalid bit state, an invalid first information index, or an invalid combination of the first information index and the second information.

A valid bit state indicates a valid first information or a valid first information index, and an invalid bit state indicates an invalid first information or an invalid first information index, and the first information. The index is used to indicate the first information.

Specifically, in this embodiment of the invention, a valid setting may be a valid bit state, where the valid bit state indicates a valid first information or a valid first information index. Yes, the first information index can indicate the first information. That is, if it decides to use the first control information format, the base station can set the indication in the first field to a valid bit state. The UE can know through the valid bit state that the base station has used the first control information format. A valid setting may be a valid first information index, i.e., if the base station decides to use the first control information format, the base station indicates the indication in the first field as valid first information. Can be set in the index. The UE can know that the base station has used the first control information format through a valid first information index. A valid setting may be a valid combination of the first information index and the second information, i.e., the combination of the first information index and the second information is valid. The second information may be information other than the first information. If the valid setting is a valid combination of the first information index and the second information, i.e., when deciding to use the first control information format, the base station will indicate the first field. It can be set as a valid combination of the first information index and the second information. The UE can know that the base station has used the first control information format through a valid combination of the first information index and the second information.

In this embodiment of the invention, the invalid setting may be an invalid bit state, where the invalid bit state can indicate an invalid first information or an invalid first information index, the first. The information index can indicate the first information. That is, if it decides to use the first control information format, the base station can set the indication in the second field to an invalid bit state. The UE can know through the invalid bit state that the base station has used the first control information format. The invalid setting may be an invalid first information index, i.e., if the base station decides to use the first control information format, the base station indicates the second field of invalid first information. Can be set in the index. The UE can know through the invalid first information index that the base station has used the first control information format. The invalid setting may be an invalid combination of the first information index and the second information, that is, the combination of the first information index and the second information is invalid. The second information may be information other than the first information. If the invalid setting is an invalid combination of the first information index and the second information, i.e., if it decides to use the first control information format, the base station will give instructions in the second field. It can be set to an invalid combination of the first information index and the second information. The UE can know through the invalid combination of the first information index and the second information that the base station has used the first control information format.

Moreover, in other embodiments of the invention, the first information is the transport block size or modulation and coding scheme, and / or the first information index is the transport block size index or modulation and coding. It is a method index. The second piece of information is the number of resource blocks. Note that in a real application scenario, the first information, the first information index, and the second information may be further implemented in different ways. Only feasible implementation scenarios in this embodiment of the invention are provided herein.

In some embodiments of the invention, valid and invalid combinations are further described below. Specifically, a valid combination of the first information index and the second information is
The downlink control information is used for downlink data scheduling, the first information index contains an index number with a fixed value of 0-9, and the second information contains a value with a fixed value of 4 or 6. And / or the downlink control information is used for downlink data scheduling, the first information index contains an index number of 10, the second information contains a value of 4, and / or the downlink control information Used for uplink data scheduling, the first information index may include an index number with a fixed value of 0 to 10, and the second information may include a value with a fixed value of 1 or 2.

The first information index contains index numbers that are fixed values from 0 to 9, i.e. the first information index is index number 0, index number 1, index number 2, index number 3, index number 4, index. It may be number 5, index number 6, index number 7, index number 8, or index number 9. This is not limited herein. Specifically, the specific index number included in the first information index may be determined according to the application scenario.

Specifically, an invalid combination of the first information index and the second information is
The first information index contains an index number that is a fixed value of 10, 11, 12, 13, 14, or 15, the second information contains a value of 6, and / or the downlink control information is downlink. Used for data scheduling, the first information index contains an index number with a fixed value of 0 to 15, the second information contains a value with a fixed value of 1, 2, 3, or 5, and / Alternatively, the downlink control information is used for uplink data scheduling, the first information index contains an index number with a fixed value of 0 to 15, and the second information has a fixed value of 3, 4, 5, or 6. It may include including certain values.

In some embodiments of the invention, valid and invalid bit states are described by the following examples. Specifically, valid bit states may include state values of all 4-bit state values except 1011, 1100, 1101, 1110, and 1111, and / or invalid bit states are 1011, The first information index, which may contain at least one state value of 1100, 1101, 1110, or 1111 and / or is valid, has an index number of 0, 1, 2, 3, 4, 5, 6. The first information index, which may contain an index that is one of 7, 8, 9, or 10, and / or is invalid, has an index number of 11, 12, 13, 14, or 15. It may include an index that is one of.

In some embodiments of the invention, the bit position of the first field in the downlink control information corresponding to the first field is the bit position of the second field in the downlink control information corresponding to the second field. The bit position of the upper X bit of the first field in the downlink control information that is the same as the bit position or corresponds to the first field is the second in the downlink control information that corresponds to the second field. Same as the bit position of the field, where X is a non-zero natural number, or the bit position of the lower X bit of the first field in the downlink control information corresponding to the first field corresponds to the second field. It is the same as the bit position of the second field in the downlink control information.

The bit position refers to the specific position of the field in the downlink control information. The bit position may be the position of the field relative to another field in the downlink control information, or the position number of the field in the downlink control information. This is not specifically limited herein. In addition, the high X bits in the first field can point to the total X bits starting from the most significant bit in the first field in order from top to bottom. The lower X bits of the first field can point to the total X bits starting from the least significant bit in the first field in order from bottom to top.

In some embodiments of the invention, the number of bits in the first field is the same as the number of bits in the second field, or the number of high-order X bits in the first field is the first. The number of bits in the second field is the same as the number of bits in the second field, where X is the number of bits in the second field, or the number of lower X bits in the first field is the number of bits in the second field. Is the same as, where X is the number of bits in the second field.

In other words, in this embodiment of the invention, the first field may have the same field length as the second field, i.e., the number of bits in the first field is in the second field. It may be the same as the number of bits of. In addition, the first field may optionally have a larger field length than the second field, i.e. the number of high X bits in the first field is in the second field. It is the same as the number of bits, or the number of low-order X bits in the first field is the same as the number of bits in the second field.

202. When it is determined that the first field included in the downlink control information indicates a valid setting, the downlink control information is acquired according to the first control information format.

In this embodiment of the present invention, the UE can detect the first field included in the downlink control information. If the UE determines that the first field indicates a valid setting, the UE can determine that the base station has used the first control information format, and the UE controls the downlink according to the first control information format. Information can be obtained.

203. If it is determined that the second field included in the downlink control information indicates an invalid setting, the downlink control information is acquired according to the second control information format.

In this embodiment of the present invention, the UE can detect a second field included in the downlink control information. If the UE determines that the second field indicates an invalid setting, the UE can determine that the base station has used the second control information format, and the UE controls the downlink according to the second control information format. Information can be obtained.

From the description of this embodiment of the present invention, it can be seen that the UE first detects the first field or the second field contained in the downlink control information transmitted by the base station. If the UE determines that the first field contained in the downlink control information indicates a valid setting, the UE acquires the downlink control information according to the first control information format. If the UE determines that the second field contained in the downlink control information indicates an invalid setting, the UE acquires the downlink control information according to the second control information format. Whether or not the setting is valid may be indicated by the first field or the second field included in the downlink control information according to the control information format of the downlink control information. Therefore, the UE can identify the control information format used by the base station according to the first field or the second field contained in the downlink control information, and as a result, the UE can determine the determined control information format. Downlink control information can be acquired according to the above. Since the first and second fields indicate the contents of the fixed fields carried within the downlink control information, the payload of the downlink control information can be indicated by using the control information format to indicate the contents of the fixed fields. Downlink control information in coverage expansion scenarios can be effectively distinguished without increasing size.

In order to better understand and implement the aforementioned solutions in embodiments of the present invention, the corresponding application scenarios are used below as specific explanatory examples.

In this embodiment of the invention, a method for effectively distinguishing whether the downlink control information carries the authorization information or the control channel command information is provided for the coverage extension scenario.

Referring to FIG. 3, FIG. 3 shows the organization of downlink control information when downlink control information carries authorization information and when downlink control information carries control information commands in this embodiment of the invention. It is a schematic diagram of a structure. When the downlink control information carries authorization information, the authorization information includes the following fields: authorization distinction instruction, narrowband index instruction, intrabandwidth resource allocation instruction, and transport block size (English full name: Transport Block Size, abbreviated) TBS) indication, or Modulation and Coding Scheme (MCS for short) indication, iteration count indication, hybrid auto-retransmission request process number indication, new data indicator, hybrid auto-retransmission request acknowledgment resource offset Includes the contents of at least one of the instructions, downlink control information iteration count instructions, and padding bits. Each field included in the authorization information is described below.

The authorization distinction instruction is written first, and the authorization distinction instruction is used to indicate whether the authorization is an uplink authorization or a downlink authorization. The narrowband index indication is used to indicate the index number used by the narrowband. For example, the ceil (log2 (floor (N _DL RB / 6))) bit is used to indicate the narrowband index number, where ceil indicates the round-up function, floor indicates the truncation function, and N _DL RB Indicates the number of resource blocks (English full name: Resource Block, RB for short) included in the downlink system bandwidth. For example, the system bandwidth is as follows: 14MHz (English full name: Mega Hertz, MHz for short), 3MHz, 5MHz, 10MHz, 15MHz, and 20MHz, and the number of resource blocks included in N _DL RB is 6. , 15, 25, 50, 75, and 100. The number of bits required by the narrowband index indication is as follows, for example.

When the system bandwidth = 1.4MHz, there is a total of one narrow band, and 0 bits indicate the narrow band index.

When the system bandwidth = 3MHz, there are a total of two narrow bands, and one bit indicates the narrow band index.

When the system bandwidth = 5MHz, there are a total of 4 narrow bands, and 2 bits indicate the narrow band index.

When the system bandwidth = 10MHz, there are a total of 8 narrow bands, and 3 bits indicate the narrow band index.

When the system bandwidth = 15MHz, there are a total of 12 narrow bands, and 4 bits indicate the narrow band index.

When the system bandwidth = 20MHz, there are a total of 16 narrow bands, and 4 bits indicate the narrow band index.

Describe the resource allocation instruction in the narrow band. For example, if one narrowband contains 6 resource blocks: {PRBn, PRBn + 1, PRBn + 2, PRBn + 3, PRBn + 4, PRBn + 5}, then two ways to allocate resources within the narrowband: 6 resource blocks {PRBn, PRBn + 1 , PRBn + 2, PRBn + 3, PRBn + 4, PRBn + 5} may be allocated to the user equipment, or four resource blocks {PRBn, PRBn + 1, PRBn + 2, PRBn + 3} may be allocated to the user equipment. In this case, 1 bit is required to indicate the resource allocation within the narrow band. Of course, resource indications within a narrow band may be performed using 5, 4, or 3 bits.

Describe the TBS instruction or MCS instruction. For example, 4 bits are used to indicate the TBS index or MCS index. Referring to Table 1, Table 1 is a configuration relationship table between the TBS index and the number of resource blocks. When 4 bits are used to indicate the TBS index, the TBS may be retrieved according to the indicated TBS index and the number of resource blocks in the table. When 4 bits are used to indicate a TBS index or MCS index, there are a total of 11 TBS indexes in Table 1, so there are still 5 unused states. For example, the five unused states (the leftmost bit is the most significant bit) may be assumed to be 1011, 1100, 1101, 1110, 1111.

In addition, in this embodiment of the invention, the iteration count indication may be 3 bits, the hybrid automatic repeat request process number indication may be 1 bit, and the new data indicator may be 1 bit. , The hybrid automatic repeat request confirmation response resource offset instruction may be 2 bits, and the downlink control information iteration count instruction may be 2 bits. In addition, if the authorization information further includes padding bits, the padding bits are x bits, where x is a natural number that can be set according to the requirements.

When the downlink control information contains authorization information, the state of some fields in the downlink control information is set to a fixed value to authorize the scheduling of some messages. For example, to authorize the scheduling of random access response messages, the bit state of the hybrid automatic repeat request process number indication and the new data indicator is a preset fixed value (eg 1 or 0).

Note that the authorization information includes more padding bits when the number x of padding bits is not equal to 0. x is a predefined number. When the number of padding bits is equal to 0, the authorization information does not include the padding bits.

When the downlink control information carries the control channel command information, the control channel command information contains the following fields: authorization distinction instruction, narrowband index instruction, narrowband resource allocation instruction, random access preamble index instruction, random access channel profile. Includes the contents of at least one of index instructions, random access channel coverage extension level instructions, and padding bits.

The definition and size of each field of the authorization distinction instruction, narrowband index instruction, intraband resource allocation instruction, and padding bit included in the control channel command information are the authorization distinction instruction, narrowband index instruction, and narrow band included in the authorization information. Same as the definition and size of each field of in-band resource allocation instruction and padding bit.

For random access preamble index indications, the random access preamble index may be a preamble index that can be indicated by the A bit, where A is a predefined positive integer. For example, A is equal to 6, 5, 4, 3, or 2.

For Random Access Channel Profile Index indications, the Random Access Channel Profile Index may be the physical Random Access Channel (PRACH for short) mask index, which may be indicated by the B bit, where. B is a predefined positive integer. For example, B is equal to 4, 3, 2, 5, or 6.

For random access channel coverage extension level indications, the random access channel coverage extension level may be indicated by the C bit, where C is a predefined positive integer. For example, C is equal to 2, 1, 3 or 4.

In this embodiment of the invention, the TBS index (or MCS index) is a valid or invalid index, and the TBS index determines whether the downlink control channel carries authorization information or control channel command information. It may be used to indicate.

When the downlink control information of the downlink control channel carries the control channel command information, the downlink control information of the downlink control channel further includes a field indicating the TBS index (or MCS index). When the downlink control information carries control channel command information, the bit size of the field indicating the TBS index (or MCS index) in the downlink control information is in the authorization information when the downlink control information carries the authorization information. It is the same as the bit size of the field indicating the TBS index (or MCS index) of.

Referring to FIG. 4-a, FIG. 4-a shows the downlink when the downlink control information carries the authorization information and when the downlink control information carries the control information command in this embodiment of the present invention. It is a schematic diagram of another organizational structure of control information. For example, the number of bits indicating the preamble index may be reduced, and the saved bits are used to indicate the TBS index (or MCS index). For example, 6 bits originally indicate the preamble index, but 6 bits may be changed to 3 bits to indicate the preamble index. Therefore, the saved 3 bits may be used to indicate the TBS index (or MCS index). If 4 bits indicate a field in the TBS index (or MCS index) in the authorization information, then in the downlink control information that carries the control channel command information, the saved 3 bits and 1 specific bit (for example, the specific bit is a spare bit). (May be) constitutes 4 bits, which 4 bits are used to indicate the TBS index (or MCS index) in the downlink control information carrying the control channel command information. 1 The specific bit may be a bit that distinguishes the uplink authorization from the downlink authorization, a spare bit, a padding bit, another predefined bit, or a newly added bit. In Figure 4-a, the TBS / MCS valid state or valid index is used to indicate that the control channel is used for authorization information, and the TBS / MCS invalid state or invalid index is control. Used to indicate that the channel is used for control channel command information.

Referring to FIG. 4-b, FIG. 4-b shows, in this embodiment of the invention, the downlink when the downlink control information carries the authorization information and when the downlink control information carries the control information command. It is a schematic diagram of another organizational structure of control information. For example, the number of bits indicating the preamble index and the number of bits indicating the PRACH mask index may be reduced, and the saved bits are used to indicate the TBS index (or MCS index). For example, 6 bits originally indicate the preamble index, but 6 bits are changed to 4 bits to indicate the preamble index. For example, originally 4 bits indicate the PRACH mask index, and 4 bits are changed to 3 bits to indicate the PRACH mask index. Therefore, the saved 3 bits may be used to indicate the TBS index (or MCS index). If 4 bits indicate a TBS index (or MCS index) field in the authorization information, then in the downlink control information that carries the control channel command information, the saved 3 bits and 1 specific bit make up 4 bits. Often, its 4 bits are used to indicate the TBS index (or MCS index) in the downlink control information that carries the control channel command information. The specific bit may be a bit that distinguishes the uplink authorization from the downlink authorization, a spare bit, a padding bit, another predefined bit, or a newly added bit. In Figure 4-b, the TBS / MCS valid state or valid index is used to indicate that the control channel is used for authorization information, and the TBS / MCS invalid state or invalid index is control. Used to indicate that the channel is used for control channel command information.

Naturally and alternately, the number of bits in another field may be reduced, so that the saved bits and / or specific bits are used to indicate the TBS index (or MCS index). When applicable, the bit size of the saved bits and / or specific bits in the downlink control information that carries the control channel command information is the bit size of the field that indicates the TBS index (or MCS index) in the authorization information. Any method may be used to ensure that they are the same.

To distinguish whether the downlink control information carries control channel command information or authorization information, the TBS index (or MCS index) shown in the downlink control information that carries control channel command information is , Must be an invalid TBS index (or MCS index), and the TBS index (or MCS index) shown in the downlink control information that carries authorization information is a valid TBS index (or MCS index). An invalid TBS index (or MCS index) means that the TBS index (or MCS index) cannot indicate a valid TBS (or MCS). For example, as mentioned above, when the 4-bit state indicating the TBS index (or MCS index) is one of the following states, the TBS index (or MCS index) indicated by the 4-bit is invalid. It is an index. Otherwise, when the 4-bit state indicating the TBS index (or MCS index) is neither of the following states, the TBS index (or MCS index) indicated by the 4-bit is a valid index. The 4-bit may be one of the following five pieces of information: 1011, 1100, 1101, 1110, or 1111.

In this embodiment of the invention, a valid TBS index (or MCS index) or an invalid TBS index (or MCS index) indicated in the downlink control information is used and carried in the downlink control information. The method of distinguishing information types may be applied to distinguish various other information types contained in the downlink control information. When the downlink control information has various information types (or information formats), the method using a valid index (or valid state) or invalid index (or invalid state) is carried within the downlink control information. It may be used to distinguish the information type (or information format) to be used. For example, downlink control information can carry scheduling information for paging messages, and downlink control information is one of system information update instructions, earthquake and typhoon alerts, commercial mobile access services, or extended access restrictions. One or more can be further transported.

According to the method of this embodiment, the complexity of blind detection of the control channel by the UE can be avoided, and the power consumption of the UE can be reduced.

It should be noted that in the method described in this embodiment of the present invention, the order of the fields contained in the downlink control information may be changed. The schematic diagram of the information organization structure in the present invention is only an example. An invalid TBS index (or MCS index) is shown when the downlink control information carries control channel command information. A valid TBS index (or MCS index) is indicated when the downlink control information carries control channel command information and when the downlink control information carries authorization information.

Other embodiments of the present invention will be described below. An invalid TBS index (or MCS index) or a valid TBS index (or MCS index) is used for downlink control to distinguish whether the downlink control information carries control channel command information or authorization information. It may be indicated in the information. When an invalid TBS index (or MCS index) is indicated in the downlink control information, the downlink control information carries the control channel command information. When a valid TBS index (or MCS index) is indicated in the downlink control information, the downlink control information carries the authorization information.

As mentioned above, when the 4-bit state indicating the TBS index (or MCS index) is one of the following states, for example, 1011, 1100, 1101, 1110, or 1111, it is indicated by the 4-bit. The TBS index (or MCS index) that is used is an invalid index.

The base station only needs to allow the user equipment to know the invalid TBS index (or MCS index), and the user equipment knows the state of the specific bit corresponding to the invalid TBS index (or MCS index). It should be noted that there is no need to enable. The last four field states of the five invalid field states have common characteristics. The most significant 2 bits are 11. It is not possible to indicate a valid TBS index (or MCS index) when the most significant 2 bits used to indicate a field in the TBS index (or MCS index) is 11. Therefore, if the UE knows that the most significant 2 bits used to indicate a field in the TBS index (or MCS index) is 11, the UE must carry the downlink control information to carry the control channel command information. To know. Otherwise, if the UE learns that the most significant 2 bits used to indicate a field in the TBS index (or MCS index) is not 11, then the UE knows that the downlink control information carries the authorization information. To know.

As shown in Figure 5, when the downlink control information carries control channel command information, the 2-bit state must be set to 11 and the 2-bit position in the downlink control information is down. The link control information corresponds to the most significant 2 bits used to indicate the TBS index (or MCS index) field when carrying authorization information. For example, the second field indicates an invalid setting and the second field contains authorization distinction instructions and spare bits. The authorization distinction instruction contains 1 bit, and the value of that bit is fixed at 1. The spare bit contains 1 bit, and the value of that bit is fixed at 1. The invalid state or invalid index of TBS / MCS is used to indicate that the control channel is used for control channel commands. When the downlink control information carries the authorization information, the bit value of the most significant 2 bits indicating TBS / MCS cannot be 11, and the valid state or valid index of TBS / MCS can be determined by the control channel in the authorization information. Used to indicate that it will be used.

After detecting the downlink control information, the UE identifies the bit state corresponding to the bit position of the most significant 2 bits used to indicate the field of the TBS index (or MCS index) in the downlink control information. If the bit state is 11, the UE considers that the downlink control information carries the control channel command information. If the bit state is not 11, the UE considers the downlink control information to carry the authorization information.

On the base station side, when the downlink control information transmitted from the base station carries control channel command information, the top level used to indicate the TBS index (or MCS index) field in the downlink control information. The bit state corresponding to the 2-bit bit position is set to 11. When the downlink control information transmitted from the base station carries authorization information, it corresponds to the bit position of the most significant 2 bits used to indicate the field of the TBS index (or MCS index) in the downlink control information. The bit state is not set to 11.

Note that when the downlink control information carries the authorization information, the bit position of the authorization distinction indicator field in the downlink control information is a predefined fixed bit position. However, the bit position of the authorization distinction instruction field in the downlink control information when the downlink control information carries the authorization information is the authorization in the downlink control information when the downlink control information carries the control channel command information. It is different from the bit position of the distinction indicator field.

In this embodiment of the invention, it is not necessary to reduce the bit size of any field in the downlink control information, and the authorization distinction indicator field and / or spare bit is used to indicate an invalid TBS index (or MCS index). used.

It should be noted that in the method described in this embodiment of the present invention, the order of the fields contained in the downlink control information may be changed. The schematic diagram of this embodiment of the present invention is only an example. However, the bit position of the authorization distinction instruction field and / or spare bit in the downlink control information when the downlink control information carries the control channel command information is the downlink when the downlink control information carries the authorization information. It is the same as the bit position of the upper (or lower) Y bit used to indicate the field of the TBS index (or MCS index) in the control information. Y is the number of bits contained in the authorization distinction indicator field and / or spare bits.

In this embodiment of the invention, an invalid TBS (or MCS) or a valid TBS (or MCS) is used to distinguish whether the downlink control information carries control channel command information or authorization information. May be indicated in the downlink control information. When an invalid TBS (or MCS) is indicated in the downlink control information, the downlink control information carries the control channel command information. When a valid TBS (or MCS) is indicated in the downlink control information, the downlink control information carries the authorization information.

For example, as shown in Table 1, when the TBS index (or MCS index) is 10 and the number of resource blocks allocated is 6, the TBS indicated by the TBS index (or MCS index) does not exist. Or not available. Therefore, a TBS index (or MCS index) of 10 and a number of allocated resource blocks of 6 may be used to indicate that the downlink control information carries control channel command information. Downlink control information is authorized when the TBS index (or MCS index) indicated by the base station is an index value in the range 0-9 and the number of resource blocks allocated is a value in the range 1-6. Transport information. Alternatively, the downlink control information carries authorization information when the TBS index (or MCS index) indicated by the base station is 10 and the number of allocated resource blocks is in the range 1-5.

To give another example, if the authorization distinction field indicates uplink authorization, but the number of resource blocks after resource allocation is in the range 3 to 6, the downlink control information carries the control channel command information. .. To give another example, the authorization distinction field indicates uplink authorization, but if the number of resource blocks after resource allocation is in the range 1 to 2, the downlink control information carries authorization information.

To give another example, if the authorization distinction field indicates downlink authorization, but the number of resource blocks after resource allocation is a value of 1, 2, 3, or 5, the downlink control information is control channel command information. To carry. To give another example, the authorization distinction field indicates a downlink authorization, but if the number of resource blocks after resource allocation is a value of 4 or 6, the downlink control information carries the authorization information.

For the sake of brevity, it should be noted that the method embodiments described above have been represented as a series of operations. However, one of ordinary skill in the art should appreciate that the present invention is not limited to the operations in the order described, as some steps can be performed in other order or at the same time according to the present invention. In addition, one of ordinary skill in the art should understand that all embodiments described herein belong to preferred embodiments, and that operations and modules are not necessarily essential to the present invention.

In order to better implement the aforementioned solution in the embodiments of the present invention, the following further provides related devices for implementing the aforementioned solution.

Referring to FIG. 6, the base station 600 provided by the embodiment of the present invention may include an information format determination module 601, a field setting determination module 602, and a transmission / reception module 603.

The information format determination module 601 is configured to determine the control information format of the downlink control information.

In the field setting determination module 602, when the control information format of the downlink control information is the first control information format, the first field included in the downlink control information corresponding to the first control information format is valid. Or, when the control information format of the downlink control information is the second control information format, the second field contained in the downlink control information corresponding to the second control information format is invalid. It is configured to judge that it shows a different setting.

The transmission / reception module 603 is configured to transmit downlink control information corresponding to the determined control information format to the user equipment (UE).

In some embodiments of the invention, the valid settings determined by the field setting determination module 602 are a valid bit state, or a valid first information index, or a first information index and a second information. Includes valid combinations of.

The invalid setting determined by the field setting determination module includes an invalid bit state, an invalid first information index, or an invalid combination of the first information index and the second information.

A valid bit state indicates a valid first information or a valid first information index, and an invalid bit state indicates an invalid first information or an invalid first information index, and the first information. The index is used to indicate the first information.

In some embodiments of the present invention, the field setting determination module 602 has the following content:
The bit position of the first field in the downlink control information corresponding to the first field is the same as the bit position of the second field in the downlink control information corresponding to the second field, or the first The bit position of the upper X bit of the first field in the downlink control information corresponding to the first field is the same as the bit position of the second field in the downlink control information corresponding to the second field. X is a non-zero natural number, or the bit position of the lower X bit of the first field in the downlink control information corresponding to the first field is the first in the downlink control information corresponding to the second field. It is specifically configured to determine that it is the same as the bit position of the field 2.

In some embodiments of the present invention, the field setting determination module 602 has the following content:
The first field contains one or more of the transport block size field, the modulation and encoding method field, the narrowband resource allocation field, or the padding bit field, and the second field is the transport block size. Contains one or more of fields, modulation and coding method fields, narrowband resource allocation fields, or padding bit fields, or the first field is a transport block size field, modulation and coding method field. , Containing one or more of the narrowband resource allocation field, or padding bitfield, and the second field containing one or more of the authorization distinction field, spare bitfield, or padding bitfield. It is specifically configured to judge.

In some embodiments of the present invention, the field setting determination module 602 has a valid combination of a first information index and a second information.
The downlink control information is used for downlink data scheduling, the first information index contains an index number with a fixed value of 0-9, and the second information contains a value with a fixed value of 4 or 6. And / or the downlink control information is used for downlink data scheduling, the first information index contains an index number of 10, the second information contains a value of 4, and / or the downlink control information Used for uplink data scheduling, determine that the first information index contains an index number with a fixed value of 0 to 10 and the second information contains a value with a fixed value of 1 or 2. It is specifically configured in.

The field setting judgment module has an invalid combination of the first information index and the second information.
The first information index contains an index number that is a fixed value of 10, 11, 12, 13, 14, or 15, the second information contains a value of 6, and / or the downlink control information is downlink. Used for data scheduling, the first information index contains an index number with a fixed value of 0 to 15, the second information contains a value with a fixed value of 1, 2, 3, or 5, and / Alternatively, the downlink control information is used for uplink data scheduling, the first information index contains an index number with a fixed value of 0 to 15, and the second information has a fixed value of 3, 4, 5, or 6. It is specifically configured to include the inclusion of a certain value.

In some embodiments of the invention, the field setting determination module 602 determines that the valid bit state includes a state value of all 4-bit state values except 1011, 1100, 1101, 1110, and 1111. And / or the field setting determination module specifically determines that an invalid bit state contains at least one state value of 1011, 1100, 1101, 1110, or 1111. The configured and / or field setting determination module specifically has a valid first information index whose index number is 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, or The field setting determination module, which is configured to determine that it contains an index that is one of 10, specifically has an invalid first information index whose index numbers are 11, 12, and 13. It is specifically configured to include an index that is one of, 14, or 15.

In some embodiments of the invention, the first information is the transport block size or modulation and coding scheme, and / or the first information index is the transport block size index or modulation and coding scheme. The index and / or the second information is the number of resource blocks.

In some embodiments of the present invention, the downlink control information corresponding to the first control information format carries authorization information and / or the downlink control information corresponding to the second control information format is controlled. Carry channel command information.

From the description of this embodiment of the present invention, it can be seen that the control information format of the downlink control information is determined first. When the control information format of the downlink control information is the first control information format, it is determined that the first field included in the downlink control information corresponding to the first control information format indicates a valid setting. Alternatively, when the control information format of the downlink control information is the second control information format, it is determined that the second field included in the downlink control information corresponding to the second control information format indicates an invalid setting. To. The downlink control information corresponding to the determined control information format is finally transmitted to the UE. Whether or not the setting is valid may be indicated by the first field or the second field included in the downlink control information according to the control information format of the downlink control information. Therefore, the UE can identify the control information format used by the base station according to the first field or the second field contained in the downlink control information, and as a result, the UE can determine the determined control information format. Downlink control information can be acquired according to the above. Since the first and second fields indicate the contents of the fixed fields carried within the downlink control information, the payload of the downlink control information can be indicated by using the control information format to indicate the contents of the fixed fields. Downlink control information in coverage expansion scenarios can be effectively distinguished without increasing size.

Referring to FIG. 7, the user equipment 700 provided by one embodiment of the present invention may include a detection module 701, a first acquisition module 702, and a second acquisition module 703.

The detection module 701 is configured to detect a first field contained in the downlink control information transmitted by the base station or a second field contained in the downlink control information.

When the first acquisition module 702 determines that the first field included in the downlink control information indicates a valid setting, the first acquisition module 702 is configured to acquire the downlink control information according to the first control information format.

When the second acquisition module 703 determines that the second field included in the downlink control information indicates an invalid setting, the second acquisition module 703 is configured to acquire the downlink control information according to the second control information format.

In some embodiments of the invention, the valid settings determined by the first acquisition module 702 are valid bit states, or valid first information indexes, or first information indexes and second information. Includes valid combinations with.

Invalid settings specifically determined by the second capture module include an invalid bit state, an invalid first information index, or an invalid combination of the first information index and the second information.

A valid bit state indicates a valid first information or a valid first information index, and an invalid bit state indicates an invalid first information or an invalid first information index, and the first information. The index is used to indicate the first information.

In some embodiments of the invention, the detection module 701 has the following content:
The bit position of the first field in the downlink control information corresponding to the first field is the same as the bit position of the second field in the downlink control information corresponding to the second field, or the first The bit position of the upper X bit of the first field in the downlink control information corresponding to the first field is the same as the bit position of the second field in the downlink control information corresponding to the second field. X is a non-zero natural number, or the bit position of the lower X bit of the first field in the downlink control information corresponding to the first field is the first in the downlink control information corresponding to the second field. It is specifically configured to detect that it is the same as the bit position of the field 2.

In some embodiments of the invention, the detection module 701 has the following content:
The first field contains one or more of the transport block size field, the modulation and encoding method field, the narrowband resource allocation field, or the padding bit field, and the second field is the transport block size. Contains one or more of fields, modulation and coding method fields, narrowband resource allocation fields, or padding bit fields, or the first field is a transport block size field, modulation and coding method field. , Containing one or more of the narrowband resource allocation field, or padding bitfield, and the second field containing one or more of the authorization distinction field, spare bitfield, or padding bitfield. Is specifically configured to detect.

In some embodiments of the invention, the first acquisition module 702 has a valid combination of the first information index and the second information.
The downlink control information is used for downlink data scheduling, the first information index contains an index number with a fixed value of 0-9, and the second information contains a value with a fixed value of 4 or 6. And / or the downlink control information is used for downlink data scheduling, the first information index contains an index number of 10, the second information contains a value of 4, and / or the downlink control information Used for uplink data scheduling, determine that the first information index contains an index number with a fixed value of 0 to 10 and the second information contains a value with a fixed value of 1 or 2. It is specifically configured in.

The second acquisition module 703 has an invalid combination of the first information index and the second information.
The first information index contains an index number that is a fixed value of 10, 11, 12, 13, 14, or 15, the second information contains a value of 6, and / or the downlink control information is downlink. Used for data scheduling, the first information index contains an index number with a fixed value of 0 to 15, the second information contains a value with a fixed value of 1, 2, 3, or 5, and / Alternatively, the downlink control information is used for uplink data scheduling, the first information index contains an index number with a fixed value of 0 to 15, and the second information has a fixed value of 3, 4, 5, or 6. It is specifically configured to include the inclusion of a certain value.

In some embodiments of the invention, the first acquisition module 702 comprises a valid bit state containing a state value of all 4-bit state values except 1011, 1100, 1101, 1110, and 1111. Concretely configured to determine and / or the second acquisition module 703 determines that the invalid bit state contains at least one state value of 1011, 1100, 1101, 1110, or 1111. The first acquisition module 702, which is specifically configured and / or has a valid first information index, has an index number of 0, 1, 2, 3, 4, 5, 6, 7, 8, The second acquisition module 703 is specifically configured to contain an index that is one of 9, or 10, and / or the second acquisition module 703 has an invalid first information index with an index number of 11. , 12, 13, 14, or 15 specifically configured to include an index.

In some embodiments of the invention, the first information is the transport block size or modulation and coding scheme, and / or the first information index is the transport block size index or modulation and coding scheme. The index and / or the second information is the number of resource blocks.

In some embodiments of the present invention, the downlink control information corresponding to the first control information format carries authorization information and / or the downlink control information corresponding to the second control information format is controlled. Carry channel command information.

From the description of this embodiment of the present invention, it can be seen that the UE first detects the first field or the second field contained in the downlink control information transmitted by the base station. If the UE determines that the first field contained in the downlink control information indicates a valid setting, the UE acquires the downlink control information according to the first control information format. If the UE determines that the second field contained in the downlink control information indicates an invalid setting, the UE acquires the downlink control information according to the second control information format. Whether or not the setting is valid may be indicated by the first field or the second field included in the downlink control information according to the control information format of the downlink control information. Therefore, the UE can identify the control information format used by the base station according to the first field or the second field contained in the downlink control information, and as a result, the UE can determine the determined control information format. Downlink control information can be acquired according to the above. Since the first and second fields indicate the contents of the fixed fields carried within the downlink control information, the payload of the downlink control information can be indicated by using the control information format to indicate the contents of the fixed fields. Downlink control information in coverage expansion scenarios can be effectively distinguished without increasing size.

It should be noted that the contents such as information exchange between modules / units of the apparatus and the execution process thereof are based on the same idea as the method embodiment of the present invention and bring about the same technical effect as the method embodiment of the present invention. For details, refer to the description of the method embodiment of the present invention, and the details are not described again in the present specification.

One embodiment of the present invention further provides a computer storage medium. The computer storage medium stores the program, which performs some or all steps of the method embodiments described above.

Hereinafter, another base station provided by one embodiment of the present invention will be described. With reference to FIG. 8, the base station 800 is
Includes receiver 801 and transmitter 802, processor 803, and memory 804 (one or more processors 803 may be present in base station 800, with one processor being used as an example in Figure 8). ). In some embodiments of the invention, the receiver 801 and transmitter 802, processor 803, and memory 804 may be connected using a bus or in another manner. FIG. 8 shows an example of a connection using a bus.

Processor 803 has the following steps:
Steps to determine the control information format of the downlink control information,
When the control information format of the downlink control information is the first control information format, it is determined that the first field included in the downlink control information corresponding to the first control information format indicates a valid setting. Alternatively, when the control information format of the downlink control information is the second control information format, it is determined that the second field included in the downlink control information corresponding to the second control information format indicates an invalid setting. Steps and
It is configured to perform the steps of transmitting the downlink control information corresponding to the determined control information format to the user equipment (UE).

In some embodiments of the invention, a valid setting determined by processor 803 is a valid bit state, or a valid first information index, or a valid first information index and second information. Includes combinations.

An invalid setting includes an invalid bit state, an invalid first information index, or an invalid combination of the first information index and the second information.

A valid bit state indicates a valid first information or a valid first information index, and an invalid bit state indicates an invalid first information or an invalid first information index, and the first information. The index is used to indicate the first information.

In some embodiments of the present invention, the bit position of the first field in the downlink control information corresponding to the first field, as determined by processor 803, is the downlink control information corresponding to the second field. The bit position of the upper X bit of the first field in the downlink control information that is the same as the bit position of the second field in, or corresponds to the first field, is the downlink corresponding to the second field. It is the same as the bit position of the second field in the control information, X is a non-zero natural number, or the bit position of the lower X bit of the first field in the downlink control information corresponding to the first field is , Same as the bit position of the second field in the downlink control information corresponding to the second field.

In some embodiments of the invention, the first field determined by the processor 803 is one of a transport block size field, a modulation and coding scheme field, a narrowband resource allocation field, or a padding bit field. The second field contains one or more of the transport block size field, the modulation and coding method field, the narrowband resource allocation field, or the padding bit field, or the first. The fields include one or more of a transport block size field, a modulation and encoding method field, a narrowband resource allocation field, or a padding bit field, and the second field is an authorization distinction field, a spare bit field. , Or contains one or more of the padding bitfields.

In some embodiments of the invention, a valid combination of a first information index and a second information as determined by processor 803 is
The downlink control information is used for downlink data scheduling, the first information index contains an index number with a fixed value of 0-9, and the second information contains a value with a fixed value of 4 or 6. And / or the downlink control information is used for downlink data scheduling, the first information index contains an index number of 10, the second information contains a value of 4, and / or the downlink control information Used for uplink data scheduling, the first information index contains an index number with a fixed value of 0 to 10, and the second information contains a value with a fixed value of 1 or 2.

An invalid combination of the first information index and the second information
The first information index contains an index number that is a fixed value of 10, 11, 12, 13, 14, or 15, the second information contains a value of 6, and / or the downlink control information is downlink. Used for data scheduling, the first information index contains an index number with a fixed value of 0 to 15, the second information contains a value with a fixed value of 1, 2, 3, or 5, and / Alternatively, the downlink control information is used for uplink data scheduling, the first information index contains an index number with a fixed value of 0 to 15, and the second information has a fixed value of 3, 4, 5, or 6. Includes including certain values.

In some embodiments of the invention, the valid bit states determined by processor 803 include and / or state values of all 4-bit state values except 1011, 1100, 1101, 1110, and 1111. Or an invalid bit state contains at least one state value of 1011, 1100, 1101, 1110, or 1111 and / or a valid first information index has an index number of 0, 1, 2, The first information index that contains an index that is one of 3, 4, 5, 6, 7, 8, 9, or 10 and / or is invalid has an index number of 11, 12, 13, 14 , Or an index that is one of 15.

In some embodiments of the invention, the first information determined by processor 803 is the transport block size or modulation and coding scheme, and / or the first information index is the transport block size index. Alternatively, it is a modulation and encoding index and / or the second information is the number of resource blocks.

In some embodiments of the invention, the downlink control information, as determined by processor 803 and corresponding to the first control information format, carries authorization information and / or is down corresponding to the second control information format. The link control information carries control channel command information.

From the description of this embodiment of the present invention, it can be seen that the control information format of the downlink control information is determined first. When the control information format of the downlink control information is the first control information format, it is determined that the first field included in the downlink control information corresponding to the first control information format indicates a valid setting. Alternatively, when the control information format of the downlink control information is the second control information format, it is determined that the second field included in the downlink control information corresponding to the second control information format indicates an invalid setting. To. The downlink control information corresponding to the determined control information format is finally transmitted to the UE. Whether or not the setting is valid may be indicated by the first field or the second field included in the downlink control information according to the control information format of the downlink control information. Therefore, the UE can identify the control information format used by the base station according to the first field or the second field contained in the downlink control information, and as a result, the UE can determine the determined control information format. Downlink control information can be acquired according to the above. Since the first and second fields indicate the contents of the fixed fields carried within the downlink control information, the payload of the downlink control information can be indicated by using the control information format to indicate the contents of the fixed fields. Downlink control information in coverage expansion scenarios can be effectively distinguished without increasing size.

Hereinafter, another user device provided by one embodiment of the present invention will be described. With reference to FIG. 9, the user device 900
Includes receiver 901, transmitter 902, processor 903, and memory 904 (one or more processors 903 may be present in user equipment 900, one processor is used as an example in FIG. 9). ). In some embodiments of the invention, the receiver 901, transmitter 902, processor 903, and memory 904 may be connected using a bus or in another manner. FIG. 9 shows an example of a connection using a bus.

Processor 903 has the following steps:
The step of detecting the first field contained in the downlink control information transmitted by the base station or the second field contained in the downlink control information, and
If it is determined that the first field contained in the downlink control information indicates a valid setting, the step of acquiring the downlink control information according to the first control information format, and
If it is determined that the second field contained in the downlink control information indicates an invalid setting, it is configured to perform the step of acquiring the downlink control information according to the second control information format.

In some embodiments of the invention, a valid setting determined by processor 903 is a valid bit state, or a valid first information index, or a valid first information index and second information. Includes combinations.

An invalid setting includes an invalid bit state, an invalid first information index, or an invalid combination of the first information index and the second information.

A valid bit state indicates a valid first information or a valid first information index, and an invalid bit state indicates an invalid first information or an invalid first information index, and the first information. The index is used to indicate the first information.

In some embodiments of the present invention, the bit position of the first field in the downlink control information corresponding to the first field, as determined by processor 903, is the downlink control information corresponding to the second field. The bit position of the upper X bit of the first field in the downlink control information that is the same as the bit position of the second field in, or corresponds to the first field, is the downlink corresponding to the second field. It is the same as the bit position of the second field in the control information, X is a non-zero natural number, or the bit position of the lower X bit of the first field in the downlink control information corresponding to the first field is , Same as the bit position of the second field in the downlink control information corresponding to the second field.

In some embodiments of the invention, the first field determined by the processor 903 is one of a transport block size field, a modulation and coding scheme field, a narrowband resource allocation field, or a padding bit field. The second field contains one or more of the transport block size field, the modulation and coding method field, the narrowband resource allocation field, or the padding bit field, or the first. The fields include one or more of a transport block size field, a modulation and encoding method field, a narrowband resource allocation field, or a padding bit field, and the second field is an authorization distinction field, a spare bit field. , Or contains one or more of the padding bitfields.

In some embodiments of the invention, a valid combination of a first information index and a second information as determined by processor 903 is
The downlink control information is used for downlink data scheduling, the first information index contains an index number with a fixed value of 0-9, and the second information contains a value with a fixed value of 4 or 6. And / or the downlink control information is used for downlink data scheduling, the first information index contains an index number of 10, the second information contains a value of 4, and / or the downlink control information Used for uplink data scheduling, the first information index contains an index number with a fixed value of 0 to 10, and the second information contains a value with a fixed value of 1 or 2.

An invalid combination of the first information index and the second information
The first information index contains an index number that is a fixed value of 10, 11, 12, 13, 14, or 15, the second information contains a value of 6, and / or the downlink control information is downlink. Used for data scheduling, the first information index contains an index number with a fixed value of 0 to 15, the second information contains a value with a fixed value of 1, 2, 3, or 5, and / Alternatively, the downlink control information is used for uplink data scheduling, the first information index contains an index number with a fixed value of 0 to 15, and the second information has a fixed value of 3, 4, 5, or 6. Includes including certain values.

In some embodiments of the invention, the valid bit states determined by processor 903 include and / or state values of all 4-bit state values except 1011, 1100, 1101, 1110, and 1111. Or an invalid bit state contains at least one state value of 1011, 1100, 1101, 1110, or 1111 and / or a valid first information index has an index number of 0, 1, 2, The first information index that contains an index that is one of 3, 4, 5, 6, 7, 8, 9, or 10 and / or is invalid has an index number of 11, 12, 13, 14 , Or an index that is one of 15.

In some embodiments of the invention, the first information determined by processor 903 is the transport block size or modulation and coding scheme, and / or the first information index is the transport block size index. Alternatively, it is a modulation and encoding index and / or the second information is the number of resource blocks.

In some embodiments of the invention, the downlink control information, as determined by processor 903, corresponding to the first control information format carries authorization information and / or is down corresponding to the second control information format. The link control information carries control channel command information.

From the description of this embodiment of the present invention, it can be seen that the UE first detects the first field or the second field contained in the downlink control information transmitted by the base station. If the UE determines that the first field contained in the downlink control information indicates a valid setting, the UE acquires the downlink control information according to the first control information format. If the UE determines that the second field contained in the downlink control information indicates an invalid setting, the UE acquires the downlink control information according to the second control information format. Whether or not the setting is valid may be indicated by the first field or the second field included in the downlink control information according to the control information format of the downlink control information. Therefore, the UE can identify the control information format used by the base station according to the first field or the second field contained in the downlink control information, and as a result, the UE can determine the determined control information format. Downlink control information can be acquired according to the above. Since the first and second fields indicate the contents of the fixed fields carried within the downlink control information, the payload of the downlink control information can be indicated by using the control information format to indicate the contents of the fixed fields. Downlink control information in coverage expansion scenarios can be effectively distinguished without increasing size.

In addition, it should be noted that the device embodiments described are merely exemplary. Units listed as separate parts may or may not be physically separated, and the part labeled as a unit may or may not be a physical unit, in one place. It may be located in, or it may be distributed over multiple network units. Some or all of the modules may be selected according to the actual needs to achieve the objectives of the solution of the embodiment. In addition, in the accompanying drawings of the device embodiments provided by the present invention, the connectivity between modules has a communication connection in which the modules can be specifically implemented with each other as one or more communication buses or signal cables. Show that. One of ordinary skill in the art can understand and implement embodiments of the present invention without creative effort.

Based on the above description of the implementation, those skilled in the art will be implemented by software in addition to the general purpose hardware required by the present invention, or by dedicated hardware including dedicated integrated circuits, dedicated CPUs, dedicated memory, dedicated components, etc. You can clearly understand what you get. In general, any function that can be performed by a computer program can be easily implemented by using the corresponding hardware. Moreover, the specific hardware structure used to achieve the same functionality may be in various forms, such as analog circuits, digital circuits, dedicated circuits, and the like. However, with respect to the present invention, the implementation form of the software program is often a better implementation form. Based on such understanding, the technical solutions of the present invention may be implemented in the form of software products, either essentially or in part that contributes to the prior art. Software products can be used on computer floppy disks, USB flash drives, removable hard disks, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disks, or readable storage media such as optical disks. Includes several instructions for instructing a computer device (which may be a personal computer, server, network device, etc.) to perform the method stored and described in the embodiments of the present invention.

The above-described embodiments are merely for describing the technical solution of the present invention, not for limiting the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art have described them in the aforementioned embodiments without departing from the spirit and scope of the technical solutions of the embodiments of the present invention. It should be understood that further modifications to the technical solution or equivalent substitutions can be made to some of those technical features.

600 base station
601 Information format determination module
602 Field setting judgment module
603 Send / Receive Module
700 user equipment
701 detection module
702 First acquisition module
703 Second acquisition module
800 base station
801 receiver
802 transmitter
803 processor
804 memory
900 user equipment
901 receiver
902 transmitter
903 processor
904 memory

Claims (24)

It is a control information format processing method.
In the step of determining the control information format of the downlink control information, when the control information format of the downlink control information is the first control information format, the downlink corresponding to the first control information format If the narrowband resource allocation field included in the control information indicates a valid setting, or if the control information format of the downlink control information is the second control information format, it corresponds to the second control information format. A step and a step indicating that the narrowband resource allocation field included in the downlink control information is invalid.
A method including the step of transmitting the downlink control information to a user device (UE). The downlink control information corresponding to the first control information format carries authorization information, and / or the downlink control information corresponding to the second control information format carries control channel command information. , The method of claim 1. The bit position of the resource allocation field in the narrow band included in the downlink control information corresponding to the first control information format is the narrowness included in the downlink control information corresponding to the second control information format. The method of claim 1 or 2, which is the same as the bit position of the in-band resource allocation field. The valid settings include a valid bit state or a valid first information index.
The invalid setting includes an invalid bit state or an invalid first information index.
The valid bit state indicates a valid first information or the valid first information index, and the invalid bit state indicates an invalid first information or the invalid first information index. The method according to any one of claims 1 to 3, wherein the first information index is used to indicate the first information. The valid bit state includes the state value of all 4-bit state values except 1011, 1100, 1101, 1110, and 1111 and / or the invalid bit state is 1011, 1100, 1101, 1110. , Or the method of claim 4, comprising at least one state value of 1111. It is a control information format processing method.
A step of detecting downlink control information from a base station, wherein the downlink control information includes a resource allocation field in a narrow band.
When the narrow band resource allocation field included in the downlink control information indicates a valid setting, the step of acquiring the downlink control information according to the first control information format, or the step included in the downlink control information. A method comprising the step of acquiring the downlink control information according to a second control information format when the narrowband resource allocation field indicates an invalid setting. The downlink control information corresponding to the first control information format carries authorization information, and / or the downlink control information corresponding to the second control information format carries control channel command information. , The method according to claim 6. The bit position of the resource allocation field in the narrow band included in the downlink control information corresponding to the first control information format is the narrowness included in the downlink control information corresponding to the second control information format. The method of claim 6 or 7, which is the same as the bit position of the in-band resource allocation field. The valid settings include a valid bit state or a valid first information index.
The invalid setting includes an invalid bit state or an invalid first information index.
The valid bit state indicates a valid first information or the valid first information index, and the invalid bit state indicates an invalid first information or the invalid first information index. The method according to any one of claims 6 to 8, wherein the first information index is used to indicate the first information. The valid bit state includes the state value of all 4-bit state values except 1011, 1100, 1101, 1110, and 1111 and / or the invalid bit state is 1011, 1100, 1101, 1110. , Or the method of claim 9, comprising at least one state value of 1111. It is a control information format processing device.
When the processing module is configured to determine the control information format of the downlink control information and the control information format of the downlink control information is the first control information format, the first control information format If the narrowband resource allocation field included in the downlink control information corresponding to corresponds to a valid setting, or if the control information format of the downlink control information is the second control information format, the second A processing module and a processing module in which the narrowband resource allocation field included in the downlink control information corresponding to the control information format indicates an invalid setting.
A device including a transmission / reception module configured to transmit the downlink control information to a user device (UE). The downlink control information corresponding to the first control information format carries authorization information, and / or the downlink control information corresponding to the second control information format carries control channel command information. , The apparatus of claim 11. The bit position of the resource allocation field in the narrow band included in the downlink control information corresponding to the first control information format is the narrowness included in the downlink control information corresponding to the second control information format. The device of claim 11 or 12, which is the same as the bit position of the in-band resource allocation field. The valid settings include a valid bit state or a valid first information index.
The invalid setting includes an invalid bit state or an invalid first information index.
The valid bit state indicates a valid first information or the valid first information index, and the invalid bit state indicates an invalid first information or the invalid first information index. The device according to any one of claims 11 to 13, wherein the first information index is used to indicate the first information. The valid bit state includes the state value of all 4-bit state values except 1011, 1100, 1101, 1110, and 1111 and / or the invalid bit state is 1011, 1100, 1101, 1110. , Or the apparatus of claim 14, comprising at least one state value of 1111. It is a control information format processing device.
A processing module configured to detect downlink control information from a base station, wherein the downlink control information includes a narrowband resource allocation field.
Is the processing module further configured to acquire the downlink control information according to the first control information format when the narrowband resource allocation field included in the downlink control information indicates a valid setting? Or, the processing module is further configured to acquire the downlink control information according to a second control information format when the narrowband resource allocation field included in the downlink control information indicates an invalid setting. Equipment. The downlink control information corresponding to the first control information format carries authorization information, and / or the downlink control information corresponding to the second control information format carries control channel command information. , The apparatus of claim 16. The bit position of the resource allocation field in the narrow band included in the downlink control information corresponding to the first control information format is the narrowness included in the downlink control information corresponding to the second control information format. The device of claim 16 or 17, which is the same as the bit position of the in-band resource allocation field. The valid settings include a valid bit state or a valid first information index.
The invalid setting includes an invalid bit state or an invalid first information index.
The valid bit state indicates a valid first information or the valid first information index, and the invalid bit state indicates an invalid first information or the invalid first information index. The device according to any one of claims 16 to 18, wherein the first information index is used to indicate the first information. The valid bit state includes the state value of all 4-bit state values except 1011, 1100, 1101, 1110, and 1111 and / or the invalid bit state is 1011, 1100, 1101, 1110. , Or the apparatus of claim 19, comprising at least one state value of 1111. It is a control information format processing device.
When the processor is configured to determine the control information format of the downlink control information and the control information format of the downlink control information is the first control information format, the first control information format is used. If the narrow-band resource allocation field included in the corresponding downlink control information indicates a valid setting, or if the control information format of the downlink control information is the second control information format, the second control A processor and a processor whose narrow-band resource allocation field included in the downlink control information corresponding to the information format indicates an invalid setting.
A device comprising a transmitter configured to transmit the downlink control information to a user device (UE). It is a control information format processing device.
Equipped with a receiver and a processor,
The processor is configured to detect downlink control information from a base station, the downlink control information includes a narrowband resource allocation field.
When the processor indicates a valid setting in the narrowband resource allocation field included in the downlink control information, the processor acquires the downlink control information according to the first control information format, or the downlink control information. A device further configured to acquire the downlink control information according to a second control information format if the included narrowband resource allocation field indicates an invalid setting. Computer-readable, recording instructions to cause the computer to perform the method according to any one of claims 1 to 5 or the method according to any one of claims 6 to 10 when executed by a computer. Recording medium. A program that causes a computer to execute the method according to any one of claims 1 to 5 or the method according to any one of claims 6 to 10.

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