Поиск по международным и национальным патентным фондам
Некоторое содержание этого приложения в настоящий момент недоступно.
Если эта ситуация сохраняется, свяжитесь с нами по адресуОтзывы и контакты
1. (WO2019066677) DEVICES AND METHODS FOR ENCODING DOWNLINK CONTROL INFORMATION IN A COMMUNICATION NETWORK
Примечание: Текст, основанный на автоматизированных процессах оптического распознавания знаков. Для юридических целей просьба использовать вариант в формате PDF

CLAIMS

1. A communication transmitter (201) for transmitting a control message over a physical downlink control channel towards a communication entity in a mobile

communication network (200), the communication transmitter (201 ) comprising:

a processor (203) which is configured to process a control block (100) to obtain the control message, the control block (100) having a first portion (101) and a second portion (102), the first portion (101 ) comprising downlink control information bits indicating information relating to data transmission over the mobile communication network (200), wherein the processor (203) is configured to insert prefix error detection code bits into the second portion (102) of the control block (100) to obtain the control message; and

a communication interface (205) being configured to transmit the control message over the mobile communication network (200).

2. The communication transmitter (201) according to claim 1 , wherein the processor (203) is configured to replace digital bits of the second portion (102) by the prefix error detection code bits in order to reliably indicate the length of the first portion (101 ).

3. The communication transmitter (201 ) according to anyone of the preceding claims, wherein the processor (203) is configured to calculate one parity bit (103) upon the first portion (101 ), and to insert the calculated parity bit (103) into the second portion (102) of the control block (100) to obtain the control message.

4. The communication transmitter (201) according to anyone of the preceding claims, wherein the processor (203) is configured to generate the prefix error detection code bits independently of the downlink control information bits.

5. The communication transmitter (201) according to anyone of the preceding claims, wherein the processor (203) is configured to generate the prefix error detection code bits to obtain a code word of a variable length having a Hamming distance which is larger than 1.

6. The communication transmitter (201) according to anyone of the preceding claims, wherein the processor (203) is configured to generate the prefix error detection code bits by a set of direct formulae or to select them from a predetermined set of code words; these code words have length depending of the length of the first portion (101 ).

7. The communication transmitter (201) according to claim 6, being arranged to transmit the control message in a certain transmission mode of a plurality of lengths of the first portion (101 ), and wherein the processor (203) is configured to generate by direct formulae or select from the predetermined set of code words the prefix error detection code bits, a number of prefix error detection code bits depending on the length of the first portion (101).

8. The communication transmitter (201 ) according to anyone of the preceding claims, wherein the communication interface (205) is configured to transmit the control message according to the LTE transmission scheme.

9. The communication transmitter (201 ) according to anyone of the preceding claims, wherein the communication transmitter (203) is a base station.

10. A communication receiver (231 ) for receiving a control message over a

communication network (200), the control message comprising a control block (100), the control block (100) comprising a first portion (101 ) and a second portion (102), the first portion (101) comprising downlink control information bits indicating information relating to data transmission over the mobile communication network (200), the second portion (102) comprising prefix error detection code bits, the communication receiver (231 ) comprising:

a communication interface (233), in particular an LTE communication interface, being configured to receive the control message over the communication network (200); and

a processor (235) being configured to decode the prefix error detection code bits of the second portion (102) to define the length of the first portion (101 ) of the control block (100).

1 1. The communication receiver (231) of claim 10, wherein the processor (235) is configured to decode the prefix error detection code bits in order to obtain decoded bits, and to discard the decoded bits in the control block (100) in order to detect the first portion (101) in the control block (100).

12. The communication receiver (231 ) of claim 10 and 1 1 , wherein the second portion (102) comprises one parity bit (103), the parity bit (103) being associated with, in particular generated from, the first portion (101), wherein the processor (235) is configured to detect an error upon the basis of the first portion (101) and the parity bit (103).

13. A transmission method (900) for transmitting a control message over a physical downlink control channel towards a communication entity in a mobile communication network (200), comprising:

processing (901 ) a control block (100) to obtain the control message, the control fame (100) having a first portion (101) and a second portion (102), the first portion ( 01) comprising downlink control information bits indicating information relating to data transmission over the mobile communication network (200), wherein the processing (901) comprises inserting prefix error detection code bits into the second portion (102) of the control block (100) to obtain the control message; and

transmitting (903) the control message over the mobile communication network (200).

14. A receiving method (1000) for receiving a control message over a communication network (200), the control message comprising a control block (100), the control block (100) comprising a first portion (101 ) and a second portion (102), the first portion (101) comprising downlink control information bits indicating information relating to data transmission over the mobile communication network (200), the second portion (102) comprising prefix error detection code bits, the receiving method (1000) comprising:

receiving (1001) the control message over the communication network (200); and

decoding (1003) the prefix error detection code bits of the second portion (102) to reliably define the length of the first portion (101 ) of the control block (100).

15. A computer program product with a program code for performing the method (900) of claim 13 or the method (1000) of claim 14, when the program code is executed on a computer.