Method and device used in communication node for wireless communication
View Patent ↗The present disclosure provides a method and device used in communication node for wireless communication. The communication node first receives first information on a first carrier, the first information being used for determining a first time interval; then receives a first reference signal in a first time window on a second carrier; the first time window is one of X time windows; each of the X time windows belongs to the first time interval, X being a positive integer greater than 1; at least one of a physical-cell identifier to which a transmitter of the first reference signal belongs, a position of frequency-domain resources occupied by the first reference signal in frequency domain or a position of the first time interval in time domain is used for determining the first time window out of the X time windows. The present disclosure reduces interference and overhead.
1. A method in a first-type communication node for wireless communications, comprising:
receiving first information on a first carrier, the first information being used for determining a first time interval;
receiving second information; and
receiving a first reference signal in a first time window on a second carrier, the first reference signal is Narrow Band Reference Signal (NRS), the first reference signal is generated by a signature sequence, and the signature sequence is a pseudo-random sequence;
wherein the first time window is one of X time windows, each of the X time windows comprises 10 subframes before a Paging Occasion; each of the X time windows belongs to the first time interval, X being a positive integer greater than 1; at least one of a physical cell identifier to which a transmitter of the first reference signal belongs, a position of frequency-domain resources occupied by the first reference signal in frequency domain or a position of the first time interval in time domain is used for determining the first time window out of the X time windows; the first time interval is one of M time intervals, the M time intervals occur periodically, and a position of the first time interval in time domain refers to an index of the first time interval in the M time intervals; the first carrier and the second carrier are two different carriers, the first carrier is an NB-IoT anchor carrier, the second carrier is an NB-IoT non-anchor carrier; the first information is transmitted via an air interface;
the second information is used for indicating a first time length, the first time length is equal to a time length of the first time interval multiplied by an integer power of 2, the first time length is used for determining the X time windows out of the first time interval, and the second information is transmitted via the air interface; the first information and the second information are carried by two different fields in a same IE in a same RRC signaling; the first time length is equal to one of 4T, 2T, T, T/2, T/4, T/8, T/16, T/32, T/64, T/128, T/256, T/512, or T/1024, wherein T is equal to a time length of the first time interval.
2. The method according to claim 1 , wherein each of the X time windows comprises a positive integer number of subframe(s), each of the X time windows has a subframe reserved for transmitting a scheduling message for paging, and a position of an initial subframe reserved for transmitting a scheduling message for paging is fixed within a time window to which it the initial subframe belongs, for each of the X time windows; the paging scheduling message is transmitted through an NPDCCH scrambled by a Paging Radio Network Temporary Identity (P-RNTI), a time interval length between a start time of a start subframe reserved for transmitting a paging scheduling message comprised in each of the X time windows and a start time of a start subframe in a time window to which the initial subframe belongs is equal to a length of 10 subframes.
3. The method according to claim 1 , wherein a first time sub-window belongs to the first time window, a time length of the first time sub-window is no longer than a time length of the first time window, and the first time sub-window comprises time-domain resources occupied by the first reference signal; a position of the first time sub-window in the first time window is pre-defined, or a position of the first time sub-window in the first time window is configured, or a position of the first time sub-window in the first time window is related to at least one of a physical-cell identifier to which a transmitter of the first reference signal belongs, a position of frequency-domain resources occupied by the first reference signal in frequency domain or a position of the first time interval in time domain.
4. The method according to claim 1 , also comprising:
receiving third information;
wherein the third information is used for determining a time length of the first time window, and the third information is transmitted via the air interface; the third information and the second information are carried by two different fields in a same IE in a same RRC signaling.
5. The method according to claim 1 , wherein the X time windows are indexed in order, at least one of a physical-cell identifier to which the transmitter of the first reference signal, a position of frequency-domain resources occupied by the first reference signal in frequency domain or a position of the first time interval in time domain is used for determining a first parameter, the first parameter is a non-negative integer, and a remainder of the first parameter modulo the X is used for determining an index of the first time window; the X time windows are sequentially indexed as “0, 1, 2, . . . , X−1” according to chronological order, and the remainder of the first parameter modulo the X is equal to an index of the first time window.
6. The method according to claim 1 , wherein the first time interval is a time interval corresponding to that a DXR period shifts forward 10 subframes; the first carrier is a carrier that an NB-IoT works under In-band Mode, the second carrier is a carrier that an NB-IoT works under Guard-band Mode.
7. A first-type communication node for wireless communications, comprising:
a first receiver, receiving first information on a first carrier, the first information being used for determining a first time interval;
the first receiver receiving second information; and
a second receiver, receiving a first reference signal in a first time window on a second carrier, the first reference signal is Narrow Band Reference Signal (NRS), the first reference signal is generated by a signature sequence, and the signature sequence is a pseudo-random sequence;
wherein the first time window is one of X time windows, each of the X time windows comprises 10 subframes before a Paging Occasion; each of the X time windows belongs to the first time interval, X being a positive integer greater than 1; at least one of a physical cell identifier to which a transmitter of the first reference signal belongs, a position of frequency-domain resources occupied by the first reference signal in frequency domain or a position of the first time interval in time domain are used for determining the first time window out of the X time windows; the first time interval is one of M time intervals, the M time intervals occur periodically, and a position of the first time interval in time domain refers to an index of the first time interval in the M time intervals; the first carrier and the second carrier are two different carriers, the first carrier is an NB-IoT anchor carrier, the second carrier is an NB-IoT non-anchor carrier; the first information is transmitted via an air interface;
the second information is used for indicating a first time length, the first time length is equal to a time length of the first time interval multiplied by an integer power of 2, the first time length is used for determining the X time windows out of the first time interval, and the second information is transmitted via the air interface; the first information and the second information are carried by two different fields in a same IE in a same RRC signaling; the first time length is equal to one of 4T, 2T, T, T/2, T/4, T/8, T/16, T/32, T/64, T/128, T/256, T/512, or T/1024, wherein T is equal to a time length of the first time interval.
8. The first-type communication node according to claim 7 , wherein each of the X time windows comprises a positive integer number of subframe(s), each of the X time windows has a subframe reserved for transmitting a scheduling message for paging, and a position of an initial subframe reserved for transmitting a scheduling message for paging is fixed within a time window to which the initial subframe belongs, for each of the X time windows; the paging scheduling message is transmitted through an NPDCCH scrambled by a Paging Radio Network Temporary Identity (P-RNTI), a time interval length between a start time of a start subframe reserved for transmitting a paging scheduling message comprised in each of the X time windows and a start time of a start subframe in a time window to which the initial subframe belongs is equal to a length of 10 subframes.
9. The first-type communication node according to claim 7 , wherein a first time sub-window belongs to the first time window, a time length of the first time sub-window is no longer than a time length of the first time window, and the first time sub-window comprises time-domain resources occupied by the first reference signal; a position of the first time sub-window in the first time window is pre-defined, or a position of the first time sub-window in the first time window is configured, or a position of the first time sub-window in the first time window is related to at least one of a physical-cell identifier to which a transmitter of the first reference signal belongs, a position of frequency-domain resources occupied by the first reference signal in frequency domain or a position of the first time interval in time domain.
10. The first-type communication node according to claim 7 , wherein the first receiver receives third information; wherein the third information is used for determining a time length of the first time window, and the third information is transmitted via the air interface; the third information and the second information are carried by two different fields in a same IE in a same RRC signaling.
11. The first-type communication node according to claim 7 , wherein the X time windows are indexed in order, at least one of a physical-cell identifier to which the transmitter of the first reference signal, a position of frequency-domain resources occupied by the first reference signal in frequency domain or a position of the first time interval in time domain is used for determining a first parameter, the first parameter is a non-negative integer, and a remainder of the first parameter modulo the X is used for determining an index of the first time window; the X time windows are sequentially indexed as “0, 1, 2, . . . , X−1” according to chronological order, and the remainder of the first parameter modulo the X is equal to an index of the first time window.
12. The first-type communication node according to claim 7 , wherein the first time interval is a time interval corresponding to that a DXR period shifts forward 10 subframes; the first carrier is a carrier that an NB-IoT works under In-band Mode, the second carrier is a carrier that an NB-IoT works under Guard-band Mode.
13. A second-type communication node for wireless communications, comprising:
a first transmitter, transmitting first information on a first carrier, the first information being used for determining a first time interval;
transmitting second information; and
a second transmitter, transmitting a first reference signal in a first time window on a second carrier, the first reference signal is Narrow Band Reference Signal (NRS), the first reference signal is generated by a signature sequence, and the signature sequence is a pseudo-random sequence;
wherein the first time window is one of X time windows, each of the X time windows comprises 10 subframes before a Paging Occasion; each of the X time windows belongs to the first time interval, X being a positive integer greater than 1; at least one of a physical cell identifier to which a transmitter of the first reference signal belongs, a position of frequency-domain resources occupied by the first reference signal in frequency domain or a position of the first time interval in time domain is used for determining the first time window out of the X time windows; the first time interval is one of M time intervals, the M time intervals occur periodically, and a position of the first time interval in time domain refers to an index of the first time interval in the M time intervals; the first carrier and the second carrier are two different carriers, the first carrier is an NB-IoT anchor carrier, the second carrier is an NB-IoT non-anchor carrier; the first information is transmitted via an air interface;
the second information is used for indicating a first time length, the first time length is equal to a time length of the first time interval multiplied by an integer power of 2, the first time length is used for determining the X time windows out of the first time interval, and the second information is transmitted via the air interface; the first information and the second information are carried by two different fields in a same IE in a same RRC signaling; the first time length is equal to one of 4T, 2T, T, T/2, T/4, T/8, T/16, T/32, T/64, T/128, T/256, T/512, or T/1024, wherein T is equal to a time length of the first time interval.
14. The second-type communication node according to claim 13 , wherein each of the X time windows comprises a positive integer number of subframe(s), each of the X time windows has a subframe reserved for transmitting a scheduling message for paging, and a position of an initial subframe reserved for transmitting a scheduling message for paging is fixed within a time window to which the initial subframe belongs, for each of the X time windows; the paging scheduling message is transmitted through an NPDCCH scrambled by a Paging Radio Network Temporary Identity (P-RNTI), a time interval length between a start time of a start subframe reserved for transmitting a paging scheduling message comprised in each of the X time windows and a start time of a start subframe in a time window to which the initial subframe belongs is equal to a length of 10 subframes.
15. The second-type communication node according to claim 13 , wherein a first time sub-window belongs to the first time window, a time length of the first time sub-window is no longer than a time length of the first time window, and the first time sub-window comprises time-domain resources occupied by the first reference signal; a position of the first time sub-window in the first time window is pre-defined, or a position of the first time sub-window in the first time window is configured, or a position of the first time sub-window in the first time window is related to at least one of a physical-cell identifier to which a transmitter of the first reference signal belongs, a position of frequency-domain resources occupied by the first reference signal in frequency domain or a position of the first time interval in time domain.
16. The second-type communication node according to claim 13 , wherein the first transmitter transmits third information; wherein the third information is used for determining a time length of the first time window, and the third information is transmitted via the air interface; the third information and the second information are carried by two different fields in a same IE in a same RRC signaling.
17. The second-type communication node according to claim 13 , wherein the X time windows are indexed in order, at least one of a physical-cell identifier to which the transmitter of the first reference signal, a position of frequency-domain resources occupied by the first reference signal in frequency domain or a position of the first time interval in time domain is used for determining a first parameter, the first parameter is a non-negative integer, and a remainder of the first parameter modulo the X is used for determining an index of the first time window; the X time windows are sequentially indexed as “0, 1, 2, . . . , X−1” according to chronological order, and the remainder of the first parameter modulo the X is equal to an index of the first time window.