# US 2008/0186868 A1 · Method and Apparatus Using Varying Length Training Sequences in Radio Communication > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2008/0186868 A1 - Document ID: US20080186868A1 - Status: Published application - Kind: A1 - Application number: 11/814,814 - Filed: 2006-01-19 - Published: 2008-08-07 - Earliest claimed: 2005-01-31 - Assignees: Koninklijke Philips Electronics N.V. - Inventors: Ni Ma; Yueheng Li; Xuejun Zhang; Xiaobo Zhang - Web page: https://patentgrep.com/patent/US20080186868A1 ## CPC - H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal - H04L 5/0048: {Allocation of pilot signals, i.e. of signals known to the receiver (allocation of control signalling H04L5/0053; use of control signalling H04L5/0091)} - H04L 25/0226: {sounding signals per se} - H04W 72/21: in the uplink direction of a wireless link, i.e. towards the network - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) ## Abstract The present invention discloses a communication method for radio communication system, comprising the steps of detecting signals received from a mobile terminal so as to obtain detected results of a corresponding uplink channel of the received signals; determining the length criteria of training sequences in corresponding uplink bursts based on said detected results of the uplink channel; allocating predetermined uplink timeslots for said mobile terminal based on said length criteria of training sequences in the uplink bursts; and notifying said mobile terminal with said length criteria of training sequences in the uplink bursts and said uplink timeslots. ## Claims ### Claim 1 A communication method for radio communication system, comprising the steps of: (a) Detecting signals received from a mobile terminal so as to obtain detected results of a corresponding uplink channel of the received signals; (b) Determining a length criteria of training sequences in corresponding uplink bursts based on said detected results of the uplink channel; (c) Allocating predetermined uplink timeslots for said mobile terminal based on said length criteria of training sequences in the corresponding uplink bursts; and (d) Notifying said mobile terminal with said length criteria of training sequences in the uplink bursts and said uplink timeslots. ### Claim 2 (depends on 1) The communication method according to claim 1, wherein, said length criteria includes the length of training sequences. ### Claim 3 (depends on 2) The communication method according to claim 2, wherein, said length criteria further includes time intervals in which said length of said training sequences is continuously employed. ### Claim 4 (depends on 2) The communication method according to claim 2, wherein, the length of training sequences in the same length criteria is the same. ### Claim 5 (depends on 2) The communication method according to claim 2, wherein, the length of training sequences is zero. ### Claim 6 (depends on 5) The communication method according to claim 5, further comprising the steps of changing the number of mobile terminals of which the training sequences length is zero in said radio communication system, based on the detected results. ### Claim 7 (depends on 2) The communication method according to claim 2, wherein, all of the communication bursts have the same length criteria of training sequences in said predetermined uplink time slots. ### Claim 8 (depends on 1) The communication method according to claim 1, wherein, detection of uplink channels includes SIR, SNR, or SNIR. ### Claim 9 (depends on 1) The communication method according to claim 1, wherein, said radio communication system is CDMA mobile communication system. ### Claim 10 A network side equipment for radio communication system, comprising: a network side measurement means for detecting signals received from a mobile terminal so as to obtain detected results of a corresponding uplink channel of the received signals; a network side determination means for determining a length criteria of training sequences in the uplink bursts based on said detected results of the uplink channel and allocating predetermined uplink timeslots for said mobile terminal based on said length criteria of training sequences in the uplink bursts; a sending means for notifying said mobile terminal with said length criteria of training sequences in the uplink bursts and said uplink timeslots. ### Claim 11 (depends on 10) The network side equipment according to claim 10, wherein, said length criteria includes the length of training sequences. ### Claim 12 (depends on 11) The network side equipment according to claim 11, wherein, said length criteria further includes time intervals in which said length of said training sequences is continuously employed. ### Claim 13 (depends on 11) The network side equipment according to claim 11, wherein, the length of training sequences in the same length criteria is the same. ### Claim 14 (depends on 11) The network side equipment according to claim 11, wherein, the length of training sequences is zero. ### Claim 15 (depends on 14) The network side equipment according to claim 14, wherein said network side equipment further changes the number of mobile terminals of which the training sequences length is zero in said radio communication system, based on the detected results. ### Claim 16 (depends on 11) The network side equipment according to claim 11, wherein, all of the communication bursts have the same length criteria of training sequences in said predetermined uplink time slots. ### Claim 17 A communication method for radio communication system, comprising the steps of: (a) Determining a length criteria of training sequences in the corresponding downlink bursts based on downlink channel detection reports from a mobile terminal; (b) Allocating predetermined downlink timeslots for said mobile terminal based on the length criteria of training sequences in said downlink bursts; (c) Notifying said mobile terminal with said length criteria of training sequences in the downlink bursts and said downlink timeslots. ### Claim 18 (depends on 17) The communication method according to claim 17, wherein, said length criteria includes the length of training sequences. ### Claim 19 (depends on 18) The communication method according to claim 18, wherein, said length criteria further includes time intervals in which said length of said training sequences is continuously employed. ### Claim 20 (depends on 18) The communication method according to claim 18, wherein, the length of training sequences in the same length criteria is the same. ### Claim 21 (depends on 18) The communication method according to claim 18, wherein, the length of training sequences is zero. ### Claim 22 (depends on 21) The communication method according to claim 21, further comprising the steps of changing the number of mobile terminals of which the training sequences length is zero in said radio communication system, based on the detected results. ### Claim 23 (depends on 18) The communication method according to claim 18, wherein, all of the communication bursts have the same length criteria of training sequences in said predetermined uplink time slots. ### Claim 24 (depends on 17) The communication method according to claim 17, further comprising the step of receiving a downlink channel detection report from a mobile terminal. ### Claim 25 A network side equipment for radio communication system, comprising: a network side determination means for determining length criteria of training sequences in the corresponding downlink bursts based on a downlink channel detection report from a mobile terminal and allocating predetermined downlink timeslots for said mobile terminal based on the length criteria of training sequences in said downlink bursts; a sending means for notifying said mobile terminal with said length criteria of training sequences in the downlink bursts and said downlink timeslots. ### Claim 26 (depends on 25) The network side equipment according to claim 25, further comprising a receiving means for receiving a downlink channel detection report from a mobile terminal. ### Claim 27 A mobile terminal for radio communication system, said mobile terminal comprising: a receiving means for receiving notification from a network side equipment, the notification including length criteria of training sequences in bursts and the allocation of timeslots, and an adjusting means for receiving or sending bursts based on the length criteria of training sequences in bursts and the allocation of timeslots in the received notification. ### Claim 28 (depends on 27) The mobile terminal according to claim 27, said mobile terminal further comprising: a detection means for detecting downlink channels to obtain a downlink channel detection report, a sending means for sending the detection report to a network side equipment.